Part V – Fire Protection – January 2015 (MOR)

Part V – Fire Protection – January 2015 (MOR)
RULES
FOR THE CLASSIFICATION AND CONSTRUCTION
OF SEA-GOING SHIPS
PART V
FIRE PROTECTION
2015
January
GDAŃSK
RULES FOR THE CLASSIFICATION AND CONSTRUCTION OF SEA-GOING SHIPS prepared and edited
by Polski Rejestr Statków, hereinafter referred to as PRS, consist of the following Parts:
Part I
Part II
Part III
Part IV
Part V
Part VI
Part VII
Part VIII
Part IX
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–
–
–
–
–
–
–
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Classification Regulations
Hull
Hull Equipment
Stability and Subdivision
Fire Protection
Machinery Installations and Refrigerating Plants
Machinery, Boilers and Pressure Vessels
Electrical Installations and Control Systems
Materials and Welding.
Part V – Fire Protection – January 2015, was approved by the PRS Board on 29 December 2014 and enters into
force on 1 January 2015.
From the entry into force, the requirements of Part V – Fire Protection apply, in full, to new ships.
For existing ships, the requirements of Part V – Fire Protection are applicable within the scope stated in Part I –
Classification Regulations and as specified in Part SUPPLEMENT – RETROACTIVE REQUIREMENTS.
The requirements of Part V – Fire Protection are extended by the below-listed Publications:
Publication No. 41/P – Symbols Related to Life-saving Appliances and Arrangements and Escape Routes.
Guidelines for Passenger Safety Instructions.
Publication No. 51/P – Procedural Requirements for Service Suppliers.
Publication No. 53/P – Plastic Pipes on Ships.
Publication No. 88/P – Guidelines on Safety for Natural Gas-fuelled Engine Installations in Ships.
Publication No. 89/P – Guidelines on Designing, Performance of Type Tests of Fixed Fire-extinguishing
Systems used on Ships.
Publication No. 29/I – Guidelines for Periodical Inspections of Fire-Extinguishing Systems and Appliances
Used on Ships.
IMO resolutions and circulars referred to in Part V – Fire Protection – see the list of reference IMO documents
at the end of the Part.
© Copyright by Polski Rejestr Statków S.A., 2015
PRS/OP, 12/2014
ISBN 978-83-7664-266-6
CONTENTS
Page
1 General ............................................................................................................................................................. 5
1.1 Application ............................................................................................................................................... 5
1.2 Definitions ................................................................................................................................................ 5
1.3 Scope of Survey ........................................................................................................................................ 12
1.4 Technical Documentation of Fire Protection ............................................................................................ 16
2 Fire Protection of Cargo Ships.......................................................................................................................
2.1 Ship Construction .....................................................................................................................................
2.2 Fire Divisions............................................................................................................................................
2.3 Means of Escape .......................................................................................................................................
2.4 Fire Protection of Accommodation Spaces, Service Spaces and Control Stations ...................................
2.5 Fire Protection Arrangements in Machinery Spaces.................................................................................
2.6 Fire Protection Arrangements in Cargo Spaces ........................................................................................
2.7 Fire Protection of Galley Spaces...............................................................................................................
2.8 Fire Protection of Store-Rooms for Paints and Flammable Liquids .........................................................
2.9 Fire Protection of Spaces Intended for Garbage Storage and Processing .................................................
2.10 Additional Requirements for Ships Carrying Dangerous Goods ..............................................................
21
21
25
32
35
37
39
41
41
42
42
3 Fire-Extinguishing Systems and Inert Gas Systems..................................................................................... 55
3.1 General Requirements............................................................................................................................... 55
3.2 Water Fire Main System ........................................................................................................................... 55
3.3 Automatic Sprinkler System (for the Protection of Accommodation Spaces, Service Spaces
and Control Stations) ................................................................................................................................ 64
3.4 Water-Spraying Fire-Extinguishing Systems and Equivalent Fire-Extinguishing Systems...................... 67
3.5 Fixed Foam Fire-Extinguishing Systems .................................................................................................. 73
3.6 Fixed Gas Fire-Extinguishing Systems..................................................................................................... 79
3.7 Equivalent Fixed Gas Fire-Extinguishing Systems................................................................................... 90
3.8 Dry Powder Fire-Extinguishing System ................................................................................................... 90
3.9 Fixed Deck Foam System (for Use in Tankers)........................................................................................ 92
3.10 Inert Gas System (for Use in Tankers)...................................................................................................... 94
3.11 Tests of Fire-Extinguishing Systems and Inert Gas Systems.................................................................... 103
4 Fire Signalling Systems and Hydrocarbon Gas Detection System.............................................................. 105
4.1 Fixed Fire Detection and Fire Alarm System ........................................................................................... 105
4.2 Sample Extraction Smoke Detection System (for Cargo Spaces)............................................................. 110
4.3 Warning Signalization System (Alerting of the Release of Fire-extinguishing Medium) ........................ 113
4.4 Fixed Hydrocarbon Gas Detection Systems in Tanker Hull Spaces ......................................................... 113
5 Fire-Fighting Equipment, Escape Equipment, Spares and Tools ............................................................... 116
5.1 Fire-Fighting Equipment and Escape Equipment ..................................................................................... 116
5.2 Spare Parts and Tools ............................................................................................................................... 125
6 Additional Requirements................................................................................................................................ 128
6.1 Passenger Ships – Mark: PASSENGER SHIP.......................................................................................... 128
6.2 Ferries and Ro-Ro Ships – Marks: FERRY, RO-RO SHIP ...................................................................... 159
6.3 Tankers (Crude Oil Tankers and Product Carriers) Carrying Cargoes Having a Flash-Point
not exceeding 60 ºC and Combination Carriers – Marks: CRUDE OIL TANKER,
PRODUCT CARRIER A, CRUDE OIL TANKER/ORE CARRIER, CRUDE OIL
TANKER/ORE CARRIER/BULK CARRIER ........................................................................................... 161
6.4 Tankers (Product Carriers) Carrying Cargoes having a Flash-Point Exceeding 60 ºC – Mark:
PRODUCT CARRIER B........................................................................................................................... 172
6.5 Special Purpose Ships – Mark: SPECIAL PURPOSE SHIP .................................................................... 173
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
6.14
6.15
6.16
6.17
6.18
6.19
6.20
6.21
6.22
6.23
Tugs and Supply Vessels – Marks: TUG, SUPPLY VESSEL ................................................................. 175
Floating Cranes – Mark: FLOATING CRANE........................................................................................ 176
Container Ships – Mark: CONTAINER SHIP ......................................................................................... 176
Oil Recovery Vessels – Mark: OIL RECOVERY VESSEL .................................................................... 177
Ro-Ro Passenger Ships – Mark: RO-RO/PASSENGER SHIP ................................................................ 179
Gas Tankers – Mark: LIQUEFIED GAS TANKER................................................................................. 182
Chemical Tankers – Mark: CHEMICAL TANKER ................................................................................ 182
Fire Fighting Ships – Mark: FIRE FIGHTING SHIP . . .......................................................................... 186
High Speed Craft – Mark: HSC................................................................................................................ 192
Ships with Ice Class – Marks: L1A, L1, L2, L3 and L4........................................................................... 192
Ships with Unattended Machinery Space and with One Person on Watch – Mark: AUT and NAV 1..... 193
Restricted Service Ships – Marks: I, II and III ......................................................................................... 195
Ships Carrying Vehicles with Fuel in their Own Tanks – Mark: PET...................................................... 195
Ships Provided with Inert Gas System – Mark: ING................................................................................ 195
Passenger Ships Engaged on Domestic Voyages – Mark: Class B, Class C or Class D .......................... 195
Cargo Ships of Less than 500 Gross Tonnage – Minimum Requirements ............................................... 201
Ships with Natural Gas-Fuelled Engines .................................................................................................. 205
Vehicle Carriers........................................................................................................................................ 205
7 Requirements for Appliances and Equipment Posing Additional Risk of Fire Onboard Ships .............. 207
7.1 Helicopter Facilities.................................................................................................................................. 207
.1 at least two mobile dry-powder extinguishers having a total capacity of not less than 45 kg; ................. 208
7.2 Store-Rooms for Flammable Liquids with a Flash-Point below 43 °C .................................................... 211
7.3 Tanks and Distributing Stations Intended for Fuel of a Flash-Point below 43 °C.................................... 212
7.4 Cylinders Containing Welding Gases (Oxygen or Acetylene) ................................................................. 212
7.5 Heating of Spaces ..................................................................................................................................... 214
7.6 Gas Fuel System for Domestic Purposes.................................................................................................. 214
7.7 The Arrangement of Oil Fuel Tanks......................................................................................................... 214
Supplement – Retroactive Requirements ........................................................................................................... 215
List of IMO Documents Referred to in Part V of the Rules.............................................................................. 215
General
1
1.1
5
GENERAL
Application
1.1.1 Part V – Fire Protection applies to the structural fire protection, fire-extinguishing systems and
fire alarm systems, as well as to the arrangement of fire-fighting equipment in sea-going ships specified
in 1.1.1, Part I – Classification Regulations.
1.1.2 The requirements, specified in Chapters 1, 2, 3, 4, 5 and in Chapter 7 are applicable to cargo
ship: general cargo ship assigned the mark GENERAL CARGO SHIP in the symbol of class and are
the basic requirements for all other types of ships to be assigned an additional mark in the symbol of
class specified in 3.4, Part I – Classification Regulations. Ships which are to be assigned an additional
mark in the symbol of class shall also fulfil the relevant requirements set forth in Chapter 6.
1.1.3 For cargo ships of less than 500 gross tonnage, instead of certain requirements stated in Chapters
1, 2, 3, 4 and 5, the requirements, specified in 6.21, apply.
1.1.4 Alternative/novel design or arrangements for fire safety deviating from the requirements
specified in the present Part may be permitted, provided that the design and arrangements meet the fire
safety objectives and the functional requirements, this being verified through approval of technical
documentation and performance of appropriate tests.
1.1.5 On ships subject to SOLAS Convention, alternative/novel design or arrangements for fire safety
may be permitted, provided that:
.1 engineering analysis of such alternative design/arrangement is carried out in accordance with
guidelines set out in MSC/Circ.1002/Corr.1;
.2 technical documentation and the engineering analysis of such alternative design/arrangement is
approved by PRS;
.3 where, for the purpose of the engineering analysis, tests of such design/ arrangement or parts
thereof are required, these tests will be carried out in the presence of PRS’ Surveyor;
.4 a certificate is issued by PRS demonstrating that alternative design/ arrangement provides the
equivalent level of safety to the requirements of SOLAS Convention in accordance with SOLAS
regulation II-2/17.
Copies of the approved technical documentation and the engineering analysis, as well as of the
certificate demonstrating that alternative/novel design or arrangements provide the equivalent level of
safety to the requirements of SOLAS regulation II-2/17 shall be available on board the ship at all times,
for the purpose of inspections.
1.1.6 On ships subject to SOLAS Convention, the application of mandatory requirements of the
Convention to a new ship is governed by the dates (day, month, year):
.1 for which the building contract is placed on or after dd/mm/yyy; or
.2 in the absence of a building contract, the keel of which is laid or which is at a similar stage of
construction on or after dd/mm/yyy; or
.3 the delivery of which is on or after dd/mm/yyy (the date of delivery means the completion date of
the survey on which the certificate is based, as entered on the relevant statutory certificates).
1.2
Definitions
The definitions relating to the general terminology of the Rules for the Classification and
Construction of Sea-going Ships (hereinafter referred to as the Rules) are given in Part I – Classification
Regulations. Wherever, in Part V, definitions given in other Parts of the Rules are used, reference to
these Parts is made.
For the purpose of Part V, the following definitions have been adopted:
.1 A t r i a – public spaces on passenger ships within a single main vertical zone spanning three or more
open decks.
6
Fire Protection
.2 C a b i n b a l c o n y – an open deck which is provided for the exclusive use of the occupants of a single
cabin and has direct access from such a cabin.
.3 T o t a l f l o o d i n g – filling the entire volume of the space with a fire-extinguishing agent (inert
gas, high-expansion foam, water mist, etc.) in order that fire may be suppressed within that volume.
.4 C h e m i c a l c a r r i e r – for the purpose of Part V, chemical carrier means a cargo ship constructed or
adapted and used for the carriage in bulk of any liquid product of a flammable nature, listed in Chapter
17 of the IBC Code.
.5 S a f e t y c e n t r e – a control station (with regard to the requirements for passenger ships ) dedicated
to the management of emergency situations. Safety systems’ operation, control and/or monitoring are
an integral part of the safety centre.
.6 C e n t r a l c o n t r o l s t a t i o n – a control station (with regard to passenger ships) in which the
following control and indicator functions are centralized:
.1 a fixed fire detection and fire alarm systems;
.2 automatic sprinkler systems;
.3 fire door indicator panels;
.4 fire door closure;
.5 watertight door indicator panels;
.6 watertight door opening and closure;
.7 shutting off ventilation fans;
.8 general/fire alarms;
.9 internal communication systems including telephones; and
.10 public address systems microphones.
.7 C o n t i n u o u s l y m a n n e d c e n t r a l c o n t r o l s t a t i o n – a central control station (in
passenger ships) which is continuously manned by a responsible member of the crew.
.8 F l a m m a b l e l i q u i d s – liquids, liquid mixtures and suspended solids (liquid fuels, paints,
varnishes, etc.), which give off flammable vapours having a flash-point not exceeding 60 °C,
determined in closed cup test.
.9 L o w e r f l a m m a b l e l i m i t – minimum concentration of flammable compound in air (or other
oxidizing agent) below which the mixture will not ignite or above which a spontaneous propagation
of flame may occur.
.10 M e a n s o f e s c a p e – a designated route ultimately leading from a compartment or ship area to
the evacuation station, appropriately marked and lighted.
.11 Directive MED – Council Directive 96/98/EC on Marine Equipment (MED) of 20 December
1996, as amended, which specifies, with regard to fire protection, the requirements and the scope of
certification of the equipment used on ships subject to SOLAS 74/78 Convention, as amended, flying
the flag of EU Member State.
.12 E s c a p e – an orderly movement of passengers and the crew to the evacuation station or any place of
relative safety on open deck in the event of fire.
.13 G a s c a r r i e r – for the purpose of Part V, gas carrier means a cargo ship constructed or adapted and
used for the carriage in bulk of any liquefied gas or other products of a flammable nature, listed in
Chapter 19 of the IGC Code.
.14 M a i n f i r e - r e s i s t i n g d i v i s i o n – fire-resisting division (A Class division) forming
boundary of the main vertical or horizontal zone, installed in passenger ships.
.15 M a i n v e r t i c a l z o n e s – sections (with regard to the requirements for passenger ships) into
which the hull, superstructures and deckhouses are divided by A Class divisions, the mean length
and width of which on any deck do not, in general, exceed 40 m.
.16 U p p e r f l a m m a b l e l i m i t – maximum concentration of flammable agent in air (or other
oxidizing agent) above which the mixture will not ignite.
.17 G r o u p o f f i r e s – definition of fire depending on the type of burning material and the material
burning process. The fires are subdivided into the following groups:
− G r o u p A – fires of solid, usually organic materials such as wood, paper, coal, etc. which,
when burning, also involve the phenomenon of glowing;
General
.18
.19
.20
.21
.22
.23
.24
.25
.26
7
− G r o u p B – fires of flammable liquids, such as diesel oil, petrol, alcohols or solid substances which
melt when exposed to the heat of the fire, such as grease, tar, etc.;
− G r o u p C – fires of flammable gases, such as: methane, acetylene, hydrogen, etc.,
− G r o u p D – fires of light metals and light metal alloys, such as magnesium, sodium,
aluminium, etc.;
– Group F or K – fires of edible oils and fat in galley appliances.
F i r e - e x t i n g u i s h i n g s y s t e m s – active systems, intended for the supply of fireextinguishing medium to the spaces/zones protected, structurally fixed to the ship’s hull and
activated automatically or manually from outside the protected spaces/zones.
W a t e r s c r e e n s y s t e m – system which supplies water to vertical surfaces of bulkheads and
exit trunks in order to protect them against the effects of fire. The system is also used for creating a
narrow space filled with water droplets (water screen) in order to prevent the fire expansion. In firefighting ships, the water screen fire-extinguishing system is used for ship structure protection
against heat radiation from external fire. The system is activated manually from outside the
protected spaces.
Automatic sp r i n k l e r s y s t e m – fire-detecting and extinguishing system fitted with temperature
sensors activated by predetermined temperature, starting automatically the supply of sprayed water by
sprinklers in the area of the detected fire and actuating, in control station, the warning signal that the
system is activated. The system is intended for extinction of fires in accommodation, service spaces or
control stations where people may be present.
W a t e r - s p r a y i n g f i r e - e x t i n g u i s h i n g s y s t e m – manually or automatically controlled
fire-extinguishing system where water is supplied by spraying nozzles installed in the protected
space or in the region of the protected machinery. The system is intended for extinction of fires in
cargo spaces, machinery spaces, store-rooms and other similar spaces.
F i r e s i g n a l l i n g s y s t e m s – systems intended for detecting the fire symptoms, i.e. smoke,
temperature, flame or change in atmospheric conditions, as well as warning systems transmitting
the warning signal that fire-extinguishing system will operate. Depending on the application, fire
signalling systems are subdivided into:
– f i r e d e t e c t i o n a n d f i r e a l a r m s y s t e m – a system designed for detecting the fire
symptoms and transmitting, after automatic activation, the alarm signal to control station or other
manned space;
– w a r n i n g s y s t e m – a system transmitting the warning signal (visual and audible) to persons
present in the protected space that the smothering system is on the point of being put into action.
Fire damper – a device installed in a ventilation duct which under normal conditions remains
open allowing flow in the duct, and is closed during fire, preventing the flow in the duct to restrict
the passage of fire. After being closed, the damper shall ensure maintenance of integrity of a fire
rated division penetrated by a ventilation duct. In using the above definition the following terms are
associated.
.1 automatic fire damper is a fire damper that closes independently in response to exposure to fire
products;
.2 manual fire damper is a fire damper that is intended to be opened or closed by the crew by hand
at the damper itself; and
.3 remotely operated fire damper is a fire damper that is closed by the crew through a control
located at a distance away from the controlled damper
Smoke damper – a device installed in a ventilation duct, which under normal conditions remains
open allowing flow in the duct, and is closed during a fire, preventing the flow in the duct to restrict
the passage of smoke and hot gases. A smoke damper is not expected to contribute to the integrity of
a fire rated division penetrated by a ventilation duct. In using the above definition the following
terms may be associated: automatic smoke damper, manual smoke damper, remotely operated
smoke damper, defined similarly as in .23.
Vehicle carrier – a cargo ship with multi deck ro-ro spaces designed for the carriage of empty cars
and trucks as cargo (with fuel in tanks).
IMSBC Code – the International Maritime Solid Bulk Cargoes Code, as amended.
8
Fire Protection
.27 BCH Code – Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in
Bulk, as amended.
.28 FSS Code – the International Fire Safety Systems Code, as amended.
.29 FTP Code – the International Code for the Application of Fire Test Procedures, as amended.
.30 HSC Code – the International Code of Safety for High-Speed Craft, as amended.
.31 IBC Code – the International Code for the Construction and Equipment of Ships Carrying
Dangerous Chemicals in Bulk, as amended.
.32 IGC Code – the International Code for the Construction and Equipment of Ships Carrying Liquefied
Gases in Bulk, as amended.
.33 IMDG Code – the International Maritime Dangerous Goods Code, as amended 1.
.34 S t r u c t u r a l f i r e p r o t e c t i o n – all passive means of fire protection intended for:
– preventing the fire hazard;
– confining/retarding the expansion of fire and smoke on the ship;
– ensuring safe evacuation of personnel from individual spaces and from the ship, as well as access
to particular spaces during rescue and fire-fighting operations.
.35 SOLAS Convention – the International Convention for the Safety of Life at Sea, 1974, as amended.
.36 D a n g e r o u s g o o d s – cargoes which constitute additional fire hazard. Division of dangerous
goods into classes is given in 2.10.1.9.
Note: For details relating to particular dangerous goods, see the IMDG Code.
. 37 S t o r e - r o o m s – spaces such as:
– rooms for explosives, intended for the storage of materials of explosive nature, such as, e.g.
pyrotechnic means of signalling;
– rooms for readily ignitable materials, intended for the storage of flammable solids and flammable
liquids, such as: paint and flammable liquids rooms, compressed flammable gas rooms, etc.;
– rooms for the storage of combustible materials, such as: boatswain’s stores, sail stores, carpenter
shops, ship’s archives, luggage rooms, mail rooms, customs rooms, rooms for protective clothing
and linen, laundries and drying rooms, kiosks and duty free shops;
– rooms for the storage of non-combustible materials, such as: spare parts rooms, stores of
mechanical and electrical workshops outside the machinery spaces.
.38 R e a d i l y i g n i t a b l e m a t e r i a l s – solid materials capable of forming explosive dust-and-air
mixtures, as well as any combustible dry, fibrous and other readily ignitable materials, such as
cotton, tobacco, sulphur, etc.
. 39 N o n - c o m b u s t i b l e m a t e r i a l – a material which neither burns nor gives off flammable
vapours in sufficient quantity for self-ignition when heated to 750 °C, this being determined in
accordance with the FTP Code, Annex 1, Part 1. Any other material is a combustible material.
.40 S t e e l e q u i v a l e n t m a t e r i a l – any non-combustible material which, by itself or due to
insulation provided, has structural and integrity properties equivalent to steel at the end of applicable
exposure to the standard fire test (e.g. aluminium alloy with appropriate insulation or composite
material). Steel equivalent composite material is subject to test in accordance with IMO guidelines,
specified in MSC/Circ.732.
.41 G r o s s v o l u m e o f a s p a c e – the volume of the space without deduction for the
arrangements, machinery, independent tanks, as well as equipment, contained therein.
.42 N e t v o l u m e o f a s p a c e – the volume of the space after deduction for the arrangements,
machinery, independent tanks, as well as equipment, contained therein.
.43 P e r s o n w i t h r e d u c e d m o b i l i t y – anyone who has a particular difficulty when using
public transport, including elderly persons, disabled persons, persons with sensory impairments and
wheelchair users, pregnant women and persons accompanying small children.
.44 O p e n r o - r o s p a c e s – ro-ro spaces which are either open at both ends or have an opening at
one end, and are provided with adequate natural ventilation effective over their entire length through
permanent openings distributed in the side plating or deckhead or from above, having a total area of
at least 10% of the total area of the space sides.
1
Amendments to the IMDG Code, see Res. MSC.328(90).
General
9
.45 O p e n v e h i c l e s p a c e s – vehicle spaces which are either open at both ends or have an opening
at one end and are provided with adequate natural ventilation effective over their entire length
through permanent openings distributed in the side plating or deckhead or from above, having a total
area of at least 10 % of the total area of the space sides.
.46 P r i m a r y d e c k c o v e r i n g – the first layer of a floor construction, applied directly on the top of
the deck plating – primary coat, anticorrosive compound or adhesive – which is necessary to provide
protection or the floor adhesion to the deck plating. Other layers in the floor construction are floor
coverings.
.47 B u l k h e a d d e c k – the uppermost deck up to which the transverse watertight bulkheads are
carried.
.48 W e a t h e r ( o p e n ) d e c k – a deck which is completely exposed to the weather from above and
from at least two sides.
.49 S p e c i a l c a t e g o r y s p a c e s – enclosed spaces intended for the carriage of vehicles with fuel
in their tanks for their own propulsion above and below the bulkhead deck, into and from which
vehicles can be driven and to which passengers have access. Special category spaces may be
accommodated on more than one deck, provided that the total overall clear height for vehicles does
not exceed 10 m.
.50 C a r g o s p a c e s – all spaces used for cargo, including liquid fuel tanks, tanks for other liquid
cargo and trunks to such spaces.
.51 A c c o m m o d a t i o n s p a c e s – spaces such as public spaces, corridors, lavatories, crew and
passenger cabins, offices, hospitals, cinemas, game and hobby rooms, barber shops, pantries
containing no cooking appliances 2 and other similar spaces.
.52 P u b l i c s p a c e s – those portions of accommodation spaces which are used for halls, dining
rooms, lounges and similar permanently enclosed spaces.
.53 Industrial spaces – spaces, such as production spaces, workshops, laboratories, etc., in which readily
ignitable materials (e.g. grease) or flammable liquids are produced, processed or used during
manufacturing process.
.54 R o - r o s p a c e s – spaces not normally subdivided in any way and normally extending to either a
substantial length or the entire length of the ship in which motor vehicles with fuel in their tanks for
their own propulsion and/or goods (packaged or in bulk, in or on rail or road cars, vehicles
(including road or rail tankers), trailers, containers, pallets, demountable tanks or in or on similar
stowage units or other receptacles) can be loaded and unloaded normally in a horizontal direction.
.55 V e h i c l e s p a c e s – cargo spaces intended for the carriage of motor vehicles with fuel in their
tanks for their own propulsion 3.
.56 S e r v i c e s p a c e s – spaces used for galleys, pantries containing cooking appliances 4 , lockers,
mail and specie rooms, store-rooms, workshops other than those forming part of the machinery
spaces, and similar spaces and trunks to such spaces.
2
3
4
Pantries or isolated pantries containing no cooking appliances may accommodate:
– toasters, microwave ovens, induction heaters and similar appliances each of them with a maximum power of 5 kW;
– electrically heated cooking plates and hot plates for keeping food warm each of them with a maximum power of 2 kW
and surface temperature not above 150 °C.
Such pantries may also contain coffee automats, dish washers and water boilers, with no uncovered hot surfaces,
regardless of power.
A dining room containing such appliances shall not be regarded as a pantry.
If vehicles with fuel in their tanks are carried in cargo spaces which are not designed as vehicle spaces, then such transported
vehicles, in accordance to the IMDG Code, shall be assigned to Class 9 dangerous goods (UN 3166) and shall comply with
Special Provision 962, Chapter 3.3 of the IMDG Code, e.g. fuel tanks shall not be more than one fourth full and in any case
the fuel shall not exceed 250 l. Confirmation of compliance with the requirements for the carriage of such vehicles shall be
Certificate of Fitness for Ships Carrying Dangerous Goods. If vehicles are transported in accordance with the requirements
of Special Provision 961, Chapter 3.3 of the IMDG Code, e.g. the fuel tanks of the vehicles are empty, then such vehicles
are not regarded as dangerous goods.
Main pantries or isolated pantries provided with cooking appliances may contain:
– toasters, microwave ovens, induction heaters and similar appliances each of them with a maximum power of 5 kW;
– electrically heated cooking plates and hot plates for keeping food warm each of them with a maximum power of 5 kW.
Such pantries may be also fitted with coffee automats, dish washers and water boilers, regardless of power.
10
Fire Protection
.57 R o o m s c o n t a i n i n g f u r n i t u r e a n d f u r n i s h i n g s o f r e s t r i c t e d f i r e r i s k – those
rooms (with regard to fire integrity of adjacent spaces on passenger ships) containing furniture and
furnishings of restricted fire risk (such as cabins, public spaces, offices or other types of
accommodation) in which:
.1 case furniture such as desks, wardrobes, dressing tables, bureaux, dressers, is constructed
entirely of approved non-combustible materials, except that a combustible veneer not
exceeding 2 mm may be used on the working surface of such articles;
.2 free-standing furniture such as chairs, sofas, tables is constructed with frames of noncombustible materials;
.3 draperies, curtains and other suspended textile materials have qualities of resistance to the
propagation of flame, not inferior to those of wool having a mass of 0.8 kg/m2, this being
determined in accordance with the FTP Code, Annex 1, Part 7;
.4 floor coverings have low flame-spread characteristics;
.5 exposed surfaces of bulkheads, linings and ceilings have low flame-spread characteristics;
.6 upholstered furniture has satisfactory qualities of resistance to the ignition and propagation of
flame, this being determined in accordance with the FTP Code, Annex 1, Part 8;
.7 bedding components have qualities of resistance to the ignition and propagation of flame, this
being determined in accordance with the FTP Code, Annex 1, Part 9.
.58 C a r g o p u m p - r o o m s – spaces in tankers where pumps for cargo handling systems, stripping
systems and crude oil washing systems are installed.
.59 C o n t r o l s t a t i o n s – those spaces, in which the ship’s radio or main navigating equipment (such
as: the steering stand 5, the compass, radar and direction-finding equipment) or the emergency source
of power (including emergency batteries 6 is located, or where the fire recording or fire control
equipment is centralized.
Spaces where the fire recording or fire control equipment is centralized, e.g. spaces where
cylinders containing carbon dioxide are stored, are considered to be a fire control station.
.60 P o t e n t i a l i g n i t i o n s o u r c e s – sources having enough energy to cause ignition. These
include high temperature surfaces, sparks or flames from inefficient flanges or joints, electrical
discharges caused from electrostatic atmospheres, or electrical contactor faults. Sources of these are,
for example, exhaust gas piping of internal combustion engines, leakages from boiler furnace joints
and electrical equipment within oil treatment rooms.
. 61 H o t s u r f a c e s – surfaces with a temperature of less than 220 °C including steam systems with a
pressure of less than 2.3 MPa, thermal oil systems, exhaust gas piping and oil-fired boilers and
exhaust gas boilers.
.62 H e a t e d s u r f a c e s – surfaces with a high temperature source on the other side.
.63 H i g h t e m p e r a t u r e s u r f a c e s – surfaces with temperatures above 220 °C.
.64 M a c h i n e r y s p a c e s – machinery spaces of category A and other spaces containing propulsion
machinery, boilers, oil fuel units, steam and internal combustion engines, generators and major
electrical machinery, oil filling stations, refrigerating, stabilizing, ventilation and air-conditioning
machinery, hydraulic power packs 7 and similar spaces, and trunks to such spaces.
.65 M a c h i n e r y s p a c e s o f c a t e g o r y A – spaces and trunks to such spaces which contain:
.1 internal combustion machinery used for main propulsion;
.2 internal combustion machinery used for purposes other than main propulsion where such
machinery has in the aggregate a total power output of not less than 375 kW;
5
6
7
Spaces containing any electrically heated cooking plate and hot plate for keeping food warm with a power of more than
5 kW shall be regarded as galleys.
Steering gear room containing an emergency steering position is not considered to be control station.
Emergency batteries, regardless of battery capacity, for power supply from black-out till start of emergency generator,
emergency batteries used as reserve source of energy to radiotelegraph installation, batteries for start of emergency generator
or batteries regarded as emergency source of power, required in Chapter 9, Part IX – Electrical Installations and Control
Systems.
In accordance with paragraph 1.10.11 of Part VI – Machinery Installations and Refrigerating Plants, hydraulic power packs of
more than 50 kW with a working pressure more than 10.0 MPa shall be installed in specially dedicated spaces
General
11
.3 any oil-fired boilers or oil fuel units;
.4 inert gas generators, incinerators, etc.
.66 A C l a s s d i v i s i o n s – fire-resisting divisions formed by bulkheads and decks which comply
with the following criteria:
.1 they are constructed of steel or other equivalent material;
.2 they are suitably stiffened;
.3 they are insulated with approved non-combustible materials 8, 9 such that the average
temperature of the unexposed side will not rise more than 140°C above the original
temperature, nor will the temperature at any one point, including any joint, rise more than 180
°C above the original temperature, within at least the time listed below:
Class A-60 – 60 min,
Class A-30 – 30 min,
Class A-15 – 15 min,
Class A-0 – 0 min,
.4 they are so constructed as to be capable of preventing the passage of smoke and flame to the
end of the one-hour standard fire test;
.5 a prototype bulkhead or deck has been satisfactorily tested in accordance with the FTP Code
requirements, Annex 1, Part 3.
.67 B C l a s s d i v i s i o n s – fire-retardant divisions formed by bulkheads, decks, ceilings or linings
which comply with the following criteria:
.1 they are constructed of approved non-combustible materials 10 and all materials used in the
construction and erection of these divisions are non-combustible, with the exception that paint
coatings and veneers with LFS characteristics may be used;
.2 they have an insulation value such that the average temperature of the unexposed side will not
rise more than 140 °C above the original temperature, nor will the temperature at any one point,
including any joint, rise more than 225 °C above the original temperature, within at least the
time listed below:
.3 Class B-15 – 15 min,
.4 Class B-0 – 0 min,
.5 they are so constructed as to be capable of preventing the passage of flame to the end of the
first half hour of the standard fire test;
.6 a prototype division has been satisfactorily tested in accordance with the FTP Code
requirements, Annex 1, Part 3.
.68 C C l a s s d i v i s i o n s – divisions constructed of approved non-combustible materials 11. They
need to meet neither requirements relative to the passage of smoke and flame nor limitations relative
to the temperature rise. Combustible veneers are permitted, provided they meet all applicable
requirements specified in the present Part.
.69 S a f e a r e a i n t h e c o n t e x t o f a f i r e c a s u a l t y – from the perspective of habitability,
any area (as regards the requirements for large passenger ships), which is not flooded or which is
outside the main vertical zone(s) in which a fire has occurred such that it can safely accommodate
all persons on board to protect them from hazards to life or health and provide them with basic
services.
.70 C a r g o a r e a – part of the ship (as regards the requirements for tankers) that contains cargo holds,
cargo tanks, slop tanks and cargo pump-rooms, including pump-rooms, cofferdams, ballast and void
spaces adjacent to cargo tanks and also deck areas throughout the entire length and breadth of the
part of the ship over the above-mentioned spaces 12.
8
9
10
11
12
Adhesives used in the construction of divisions need not be non-combustible; however, they shall have low flame-spread
characteristics.
For the construction of ship divisions – see para. 2.2.1.1.1.
See footnote 8.
See footnote 8.
Interpretations referring to the definition of cargo area with regard to void spaces or ballast water tanks protecting a fuel oil
tank are given in MSC.1/Circ. 1239 for SOLAS regulations II-2/3.6 and II-2/4.5.1.1.
12
Fire Protection
.71 S a u n a – a hot room with temperatures normally varying between 80 ºC and 120 ºC where the heat is
provided by a hot surface (e.g. by an electrically heated oven). The hot room may also include the space
where the oven is located and adjacent bathrooms.
.72 F i r e - f i g h t i n g e q u i p m e n t – portable or mobile equipment used for extinction of fire, firefighting operations and personal protection, such as: fire hoses, nozzles, portable and mobile fireextinguishers, portable foam applicator units, breathing apparatus and fire-fighter’s outfit.
.73 S t a n d a r d f i r e t e s t – a test, with regard to fire structures, in which specimens of the relevant
bulkheads or decks are exposed in a test furnace to temperatures corresponding approximately to the
standard time-temperature curve, in accordance with the test method specified in the FTP Code,
Annex 1, Part 3.
.74 C o m b i n a t i o n c a r r i e r – a cargo ship designed to carry both oil and solid cargoes in bulk.
.75 P a s s e n g e r s h i p – a ship which carries more than twelve passengers.
.76 R o - r o p a s s e n g e r s h i p – a passenger ship with ro-ro spaces or special category spaces.
.77 C a r g o s h i p – a ship intended for the carriage of cargoes, which is not a passenger ship.
.78 C o n t i n u o u s B C l a s s c e i l i n g s o r l i n i n g s – those B Class ceilings or linings which
terminate at an A or B Class division.
.79 F l a s h - p o i n t – the temperature in degrees Celsius (closed cup test) at which a product will give
off enough flammable vapours to be ignited, as determined by an approved flash-point apparatus.
.80 H e l i c o p t e r f a c i l i t i e s – this term covers a helideck, helicopter landing area, refuelling and
hangar facilities.
.81 L o w f l a m e - s p r e a d – with regard to materials used in structural fire protection low flamespread means that the surface thus described will adequately restrict the spread of flame, this being
determined in accordance with the FTP Code, Annex 1, Part 5.
.82 C l o s e d r o - r o s p a c e s – ro-ro cargo spaces which are neither open ro-ro spaces nor weather
decks.
.83 C l o s e d v e h i c l e s p a c e s – vehicle spaces which are neither open vehicle spaces nor weather
decks.
.84 S l o p t a n k – a tank (as regards the requirements for tankers) intended for the carriage of cargo
tanks residues and washings.
.85 T a n k e r – for the purpose of Part V, tanker means a cargo ship constructed or adapted for the
carriage in bulk of liquid cargoes of flammable nature.
.86 O i l f u e l u n i t – the equipment used for the preparation and delivery of oil fuel, heated or not, to
boilers (including inert gas generators) and internal combustion engines (including gas turbines) at a
pressure of more than 0.18 MPa. 13
1.3
Scope of Survey
1.3.1 The general survey regulations for classification, construction surveys and surveys of ships
during service within the scope of structural fire protection, fire-extinguishing systems, as well as fire
detection and fire alarm systems are given in Part I – Classification Regulations.
1.3.2 The following are subject to survey during ship construction or alteration: fire protection
structures, fire-extinguishing systems, fire detection and fire alarm systems, other fire protection systems
and arrangements, the documentation of which is subject to consideration and approval, as well as
appliances and systems which constitute fire risk.
1.3.3 For ships of 500 gross tonnage and upwards, as well as for all passenger ships engaged on
international voyages (subject to Convention SOLAS 74/78, as amended) and flying the flag of EU
Member State, the following components of fire-protection equipment/arrangements are subject to
certification for compliance with Council Directive 96/98/EC on Marine Equipment (MED) of 20
December 1996, as amended, also referred to as Directive MED:
.1 A and B Class divisions;
.2 fire doors;
13
Oil fuel transfer pumps are not considered as oil fuel units.
General
.3
.4
.5
.6
.7
.8
.9
.10
.11
.12
.13
.14
.15
.16
.17
.18
.19
.20
.21
.22
.23
.24
.25
.26
.27
.28
.29
.30
.31
.32
.33
.34
.35
.36
.37
.38
.39
.40
.41
14
15
16
13
fire door control systems components;
A and B Class windows and side scuttles;
non-combustible materials;
primary deck coverings;
walls and ceilings surface materials and floor coverings with low flame-spread characteristics:
decorative veneers, paint systems, floor coverings, as well as pipe insulation covers, adhesives
used in A, B and C Class divisions and ventilation ducts combustible covers;
draperies, curtains and other suspended textile materials and films (used in passenger ships) 14;
upholstered furniture (used in passenger ships) 15;
bedding components (used in passenger ships) 16;
fire (ventilation) dampers;
penetrations through A Class divisions: electric cable transits, pipes, ducts, etc. penetrations;
penetrations through B Class divisions: electric cable transits, pipes, ducts, etc. penetrations;
materials other than steel for pipes conveying oil or fuel oil: pipes, fittings, valves and flexible
pipe assemblies;
automatic sprinkler systems heads;
equivalent high-pressure sprinkler systems heads;
nozzles of fixed water-spraying systems and equivalent high-pressure water-based systems for
use in machinery spaces and cargo pump-rooms;
nozzles for equivalent high-pressure spraying water-based systems for use in ro-ro spaces and
special category spaces;
fixed local application water-based fire-extinguishing systems for use in machinery spaces of
category A (nozzles and extinguishing effectiveness tests of the system);
deep-fat cooking equipment fire-extinguishing systems nozzles (automatic or manual type);
nozzles for fixed water-spraying systems for cabin balconies (used in passenger ships);
components of equivalent fixed gas fire-extinguishing systems for use in machinery spaces and
cargo pump-rooms (fire-extinguishing medium, main valves and discharge nozzles);
aerosol systems equivalent to fixed gas fire-extinguishing systems for use in machinery spaces;
components of fixed deck medium-expansion foam fire-extinguishing system (used in tankers);
components of fixed low-expansion foam fire-extinguishing system used in machinery spaces
and fixed deck foam fire-extinguishing system used in tankers;
foam concentrates for fixed high-expansion foam fire-extinguishing systems for use in machinery
spaces and cargo pump-rooms;
foam concentrates for fixed foam fire-extinguishing systems for use in chemical carriers;
fixed inside air foam systems for use in machinery spaces and cargo pump-rooms;
arrangements to prevent the passage of flame into the cargo tanks in tankers;
fixed oxygen analysis and flammable gas detection equipment (used in tankers);
portable oxygen analysis and flammable gas detection equipment (used in tankers);
inert gas systems components (used in tankers);
components of escape routes low-location lighting systems (for use in passenger ships);
fire hoses (classic) and fire hoses (reel type);
dual-purpose type nozzles (spray and jet type);
portable and mobile fire-extinguishers;
portable fire-fighting equipment for lifeboats and rescue boats;
fire-fighter’s outfit: protective clothing (close proximity clothing);
fire-fighter’s outfit: boots;
fire-fighter’s outfit: gloves;
fire-fighter’s outfit: helmet;
Certificates are not required for products used in spaces classified as spaces of category (7) – cabins with furniture and
furnishings of other than restricted fire risk and in spaces classified as spaces of category (8) – public spaces with furniture and
furnishings of other than restricted fire risk.
See footnote 14.
See footnote 14.
14
Fire Protection
fire-fighter’s outfit: life-line;
self-contained compressed-air-operated breathing apparatus;
air-supplied breathing apparatus for use with a smoke helmet or smoke mask;
emergency escape breathing devices;
components of fixed fire detection and alarm systems for accommodation and service spaces,
control stations, machinery spaces and unattended machinery spaces (control and indicating
devices, electrical and electronic installations, power supply equipment, fire detectors: smoke
detectors, heat and flame detectors, manually operated call points as well as short circuit
isolators, input/output devices, cables);
.47 alarm devices of fire detection and alarm system;
.48 dry chemical powder fire-extinguishing systems (used in gas tankers);
.49 sample extraction smoke detection systems (control and indicating equipment, electrical and
electronic installations, power supply equipment, aspirating smoke detectors);
.50 C class divisions;
.51 fixed hydrocarbon gas detection systems;
.52 evacuation guidance systems used as an alternative to low-location lighting systems (applicable
on passenger ships).
.53 foam fire-extinguishing system for the helideck.
Confirmation of compliance with the Directive requirements is Certificate of Conformity with
Directive MED, issued by a notified body (the steering wheel mark on the Certificate).
.42
.43
.44
.45
.46
1.3.4 For ships of less than 500 gross tonnage and for passenger ships not engaged on international
voyages, as well as for ships flying the flag of non-EU Member State, the fire-protection
equipment/arrangements, specified in 1.3.3, shall be of the type approved by PRS (shall have Type
Approval Certificate issued by PRS).
In lieu of Type Approval Certificate, the above-mentioned equipment may have Certificate of
Conformity with Directive MED.
1.3.5 The following structures, equipment/arrangements/materials used in fire protection, not covered
by 1.3.3, shall be of the type approved by PRS:
.1 carbon dioxide fire-extinguishing systems components: cylinders provided with valves,
distribution valves (with an activating device), non-return valves, flexible pipe assemblies, timedelay units, discharge nozzles;
.2 fire-extinguishing systems components of paint lockers and flammable liquid lockers;
.3 galley exhaust duct fixed fire-extinguishing systems components;
.4 liquid gas fuel systems for domestic purposes (components);
.5 nozzles for water spraying hand operated systems;
.6 electric safety lamps;
.7 chemical protective clothing;
.8 portable foam applicator units;
.9 cold-weather starting of generator sets (starting devices);
.10 power-operated doors control system;
.11 fire-extinguishing systems flexible connections;
.12 foam concentrate used in low-expansion foam fire-extinguishing system and in deck foam
systems;
.13 foam concentrate used in portable foam applicator units;
.14 fire hydrants;
.15 low-location lighting system of escape routes;
.16 automatic sprinkler system;
.17 equivalent high-pressure automatic sprinkler system (water mist system);
.18 water-spraying system for ro-ro and special category spaces;
.19 equivalent high-pressure spraying water-based system for ro-ro, special category spaces and
vehicle spaces;
.20 water-spraying system for the protection of machinery spaces cargo pump-rooms;
General
15
.21 equivalent high-pressure spraying water-based system for machinery spaces and cargo pumprooms;
.22 fixed local application water-based extinguishing system for machinery spaces of category A;
.23 water-spraying system and water-based system for cabin balconies;
.24 equivalent fixed gas fire-extinguishing system for machinery spaces and cargo pump-rooms;
.25 high-expansion foam fire-extinguishing system (including high-expansion foam generators);
.26 fire detection and alarm system;
.27 fire detection and alarm system for cabin balconies;
.28 sample extraction smoke detection system;
.29 plastic pipes (piping components) used in fire-extinguishing systems.
.30 mobile water monitors for use in containerships carrying five or more tiers of containers on the
weather deck 17
1.3.6 PRS may give consent to a single acceptance of a structure, material or system, for which type
approval is required, to be installed on a given ship subject to tests and acceptance surveys being carried
out in accordance with the previously agreed tests and acceptance programme and the issue of Inspection
Certificate/Certificate.
1.3.7 Fire pumps, water-spraying systems supply pumps, water and foam pumps of foam fireextinguishing systems are subject to acceptance and operation tests at the manufacturer’s in the presence
of PRS’ Surveyor.
1.3.8 Containers and pressure vessels of gas fire-extinguishing systems, as well as CO2 manifold are
subject to acceptance and pressure tests at the manufacturer’s in the presence of PRS’ Surveyor.
1.3.9 During the ship service, fire-extinguishing systems and equipment used in fire protection, as well
as appliances and equipment which constitute additional fire hazard are subject to periodical inspections
and attestation in accordance with Publication No. 29/P – Guidelines for Periodical Inspections of Fireextinguishing Systems and Appliances Used on Ships.
1.3.10 Inspections, maintenance and repair of fixed fire-extinguishing systems, fire-fighting
equipment (fire-extinguishers and portable foam applicator units), breathing apparatus, low-location
lighting systems, as well as laboratory tests of foam concentrates shall be performed by service stations
approved by PRS.
1.3.11 Service stations seeking PRS’ approval shall fulfil the requirements specified in Publication
No. 51/P – Procedural Requirements for Service Suppliers.
1.3.12 Repairs of fixed fire-extinguishing systems on board are subject to acceptance of PRS’
Surveyor in accordance with MSC./Circ. 1070.
1.3.13 For all ships, new installation of materials which contain asbestos 18 is prohibited.
For the purpose of verification that new installation of materials which contain asbestos has not been
made on ships, asbestos-free declarations and classification documentation concerning insulating
materials, structural materials with insulation and fire-fighting equipment, specified in 2.1.2.1.1 and
5.1.1.9, respectively, shall be provided for:
– ships built on or after 1 July 2012;
– ships who have undergone conversions (contract date for the conversion or, in the absence of a
contract, the date on which the work identifiable with the specific conversion begins) on or after
1 July 2012.
17
18
The monitors will be required onboard ships constructed on or after 1 January 2016.
New installation of materials which contain asbestos means any new physical installation on board. Any material purchased
prior to 1 January 2011 being kept in the ship’s store or in the shipyard for a ship construction is not permitted to be installed
after 1 January 2011 as a working part.
16
Fire Protection
1.4
Technical Documentation of Fire Protection
1.4.1
Classification Documentation
Prior to the commencement of ship construction, the following technical documentation shall be
submitted to the PRS Head Office for consideration and approval:
A. Structural Fire Protection:
.1 plan of structural fire protection, indicating the applied fire protection method, the names of
compartments and their fire hazards, covering:
– the arrangement of A, B and C fire divisions, taking into account closures of openings in these
divisions;
– the arrangement of draught stops;
– designation of escape routes;
– design of typical penetrations of pipings, cables and ventilation ducts through fire divisions;
.2 fire doors arrangement and control plans;
.3 plan of windows and sidescuttles;
.4 plan of ship’s spaces insulation;
.5 plan of deck covering;
.6 plans of ship equipment, covering:
– linings and ceilings;
– plan of floor lining;
– list of upholstered furniture, mattresses, suspended textile materials and the bedding
components (for passenger ships);
.7 plan of maintenance and painting;
.8 calculations of the total amount of combustible materials used in accommodation spaces, service
spaces and control stations;
.9 plan of ventilation and air-conditioning, including the arrangement of ventilation ducts, air inlets
and outlets, as well as fire dampers;
.10 plan of means of escape and escape time assessment (applicable to passenger ships only);
.11 plan of low-location lighting and designation of escape routes (for passenger ships);
.12 analysis of evacuation procedure (for ro-ro passenger ships);
.13 the arrangement of safety centre (for passenger ships);
.14 documentation confirming compliance with the requirements for large passenger ships in the
context of fire disasters;
.15 list of required certificates for materials/components/structures used in fire divisions.
B. Active Fire Protection:
.1
.2
.3
.4
.5
water fire main system, including calculation of fire pump capacities, hydraulic calculations of
the required pressure at fire hydrants, the arrangement of fire pumps, pipelines and fire hydrants;
automatic sprinkler system or equivalent high-pressure sprinkler system, including the
calculations of the necessary water supply, the required pressure at sprinklers, diagram of the
system operation, including alarm signals, drawing of pressure tank, the arrangement of pumps,
pressure tank, section valves and sprinklers, with division into pipe sections;
water-spraying fire-extinguishing system or equivalent high-pressure water-spraying system for
cargo spaces, including the calculations of pumps capacities, hydraulic calculations of the required
pressure at spraying nozzles, the arrangement of pumps, pipelines and nozzles, with division into
pipe sections;
water-spraying fire-extinguishing system or equivalent high-pressure water-spraying system for
machinery spaces and cargo pump-rooms, including the calculations of pumps capacities,
hydraulic calculations of the required pressure at spraying nozzles, the arrangement of pumps,
pipelines and nozzles, with division into pipe sections;
local application water-based fire-extinguishing system for machinery spaces of category A,
including the calculations of pumps capacities, hydraulic calculations of the required pressure at
spraying nozzles, diagram of the system operation, including alarm signals, the arrangement of
pumps, pipelines and nozzles, with division into pipe sections;
General
.6
.7
.8
.9
.10
.11
.12
.13
.14
.15
.16
.17
.18
.19
17
local application water-based fire-extinguishing system for exhaust gases fired oil boilers,
including the calculations of the necessary water supply, diagram of the system operation,
including alarm signals, the arrangement of pipelines, fittings and nozzles, as well as sewage
drainage;
water screen system, including the calculations of water supplies, the arrangement of pipelines,
fire hydrants and nozzles;
fire-extinguishing system for the protection of galley exhaust duct and deep-fat cooking
equipment;
foam fire-extinguishing system, including the calculations of the required quantity of foam
concentrate, hydraulic calculations of pipe diameters, the system operation diagram, the
arrangement of pipes and devices such as foam concentrate tanks, proportioners, foam monitors
and foam generators;
carbon dioxide fire-extinguishing system or an equivalent gas fire-extinguishing system,
including the calculations of the required quantity of extinguishing medium, the diameters of
pipes and nozzles, diagram of the system operation, including warning signalization, the
arrangement of fire-extinguishing station, starting arrangements, the arrangement of pipes and
nozzles, operation manual;
dry powder fire-extinguishing system, including the calculations of fire-extinguishing medium
and the powder carrier, diagram of the system operation, the arrangement of fire-extinguishing
stations, fire control stations, pipes and fittings (required for chemical tankers and gas tankers);
inert gas system (for tankers and chemical carriers and gas tankers), including the calculations of
the system equipment capacity, covering: diagram of the details and arrangement of the gas
generating plant, the arrangement of the system components, the pipes for the distribution of gas
to tanks and cofferdams, material specifications, electrical diagrams of control and monitoring
the inert gas parameters, automation and alarms;
fire detection and alarm system, including electric circuits diagrams, division into sections, the
arrangement of control panel, indicating units, detectors and manually operated call points;
sample extraction smoke detection system, including the location of smoke detection control
panel, indicating units, pipes and smoke accumulators, electric circuits diagrams,
plan of hydrocarbon gas detection system in tanker compartments, plan of hydrocarbon
gas/flammable gas continuous monitoring in cargo pump rooms (required for tankers and
chemical tankers), including the location of gas measurement and analysis panel, pipes and
smoke accumulators, as well as electric circuits diagrams;
gas detection system (required for gas tankers), including the location of gas measurement and
analysis panel, pipes and smoke accumulators, as well as electric circuits diagrams;
the arrangement plan of fire-fighting equipment, i.e. portable and mobile fire-extinguishers,
portable foam applicator units, fire-fighter’s equipment and emergency escape breathing
apparatus as well as portable devices for measuring flammable gas concentration and oxygen
concentration;
fire-extinguishing system plan for paint lockers and flammable liquid lockers;
list of the required certificates for the applied components, appliances, systems and fire-fighting
equipment.
C. Appliances and Equipment Posing Additional Risk of Fire
.1
.2
.3
.4
the plan of helicopter facilities, including fire-extinguishing systems and helideck equipment;
the plan of tanks and distributing stations for fuel with a flash-point below 43°C;
the plan of welding gases system;
the plan of liquefied gas installation for domestic purposes.
Classification documentation shall contain material specifications, list of appliances, components of
systems, as well as the necessary information allowing to assess whether structures/appliances/systems
comply with the requirements of PRS Rules.
18
Fire Protection
With regard to ships to be assigned additional mark in the symbol of class, additional documentation
relating to structural fire protection, active fire protection or appliances and equipment which constitute
fire hazard on ship may be required by PRS.
For ships undergoing alteration, the above-mentioned documentation is subject to consideration and
approval within the scope regarding alteration.
1.4.2
Fire Control Plan
1.4.2.1 Ships of 150 gross tonnage and above, as well as all ships engaged on international voyages
shall be provided with Fire Control Plan, based on the general arrangement plan, indicating:
.1 the arrangement of A and B Class divisions, as well as fire doors in these divisions;
.2 control stations/safety centres and fire control stations;
.3 main and secondary escape routes (stairways, ladders, doors and manholes), as well as directions
of escape routes from all areas and spaces on the ship to the open deck, to lifeboats and liferafts
embarkation areas;
.4 ship spaces/areas protected by fire detection and fire alarm systems (indicating the type of fire
detectors: smoke, heat or flame detectors) and hydrocarbon gas detection systems, as well as
showing the arrangement of manually operated call points and general alarm call points, control
panel/indicating unit and hydrocarbon gas detection system control panel;
.5 ship spaces/areas protected by fixed fire-extinguishing systems (indicating the type of fireextinguishing medium: CO2, gas, foam, dry powder, water, sprinkler or water mist) and showing
the arrangement of: fire-extinguishing medium storage tanks/cylinders, high-expansion foam
delivery ducts, monitors (water, foam and powder monitors), shut-off section valves, water fire
main systems and foam fire-extinguishing systems isolating valves, fire hydrants, shore
connections, as well as remote control positions for these systems;
.6 the arrangement of fire-fighting equipment: portable and mobile fire-extinguishers (indicating the
type of fire-extinguishing medium), portable foam applicator units, fire hoses (water, foam and
powder) with nozzles, water fog applicators, fire-fighter’s outfit sets, fire axes, emergency escape
breathing devices, as well as chemical protective clothing and additional breathing apparatus
required when dangerous goods are carried;
.7 the arrangement of closures of ventilation openings (inlet and outlet) of the spaces, the location of
fire dampers in ventilation ducts, positions of remote shutting off ventilating fans, remote
closures of ventilation openings of spaces, remote control of fire dampers in ventilation ducts
(indicating the type of served spaces: accommodation spaces, machinery spaces and cargo
spaces), as well as fans serving each fire zone, together with a list of their identification numbers;
.8 fuel and lubricating oil tanks, located outside the double bottom, the positions of remote control
of the tanks shut-off valves and stopping oil fuel and lubricating oil pumps;
.9 main and emergency fire pumps, positions of remote control of the main and emergency fire
pumps, positions of remote control of fire pumps valves, positions of remote control of main and
emergency bilge pumps;
.10 emergency electrical source of power (generating set or accumulator battery), as well as
emergency switchboard;
.11 position of remote control of watertight doors, fire doors and machinery casing skylights;
.12 inert gas systems appliances in tankers;
.13 the location of containers, in which Fire Control Plan, intended for the shoreside fire-fighting
personnel, are stored;
.14 assembly stations for passengers and crew (for passenger ships);
.15 list and the arrangement of numbered openings (doors, manholes, ventilation inlets) which shall
be closed before the release of fire-extinguishing medium into spaces protected by total flooding
system;
.16 means/compressors for recharging the breathing apparatus air cylinders.
Fire Control Plan shall show the ship’s profile with indicated deck levels, showing the arrangement
of main vertical and horizontal fire divisions and primary and secondary means of escape.
General
19
In specification table on the Plan, the number of the required fire-fighting equipment and other
equipment used in fire protection shall be given.
A free space shall be left on the Plan for recording possible changes and information related to ship
modifications.
1.4.2.2 The graphic symbols used in Fire Control Plan shall conform to the symbols given in Res.
A.952(23); all the descriptions shall be in the official language of the Flag State. The descriptions in Fire
Control Plans intended for ships engaged on international voyages shall also be in English.
In Fire Control Plans intended for existing ships constructed before 1 January 2004, the graphic
symbols set out in Resolution A.654(16), may be used.
1.4.2.3 Fire Control Plan shall be exhibited in the ship in the visible places – in halls, mess rooms, as
well as on the navigation bridge and at control station.
1.4.2.4 Alternatively, the information included in Fire Control Plan may be presented in the form of a
booklet, which shall be at all times available on board in an easily accessible position. One copy of the
booklet shall be kept by each officer.
1.4.2.5 A duplicate of Fire Control Plan, intended for use by the shoreside fire-fighting personnel,
shall be permanently stored in a container at entrances, outside the deckhouse, on each side of the ship.
The container shall be weathertight, painted red and marked in accordance with the guidelines, specified
in MSC/Circ.451.
The location of each container with Fire Control Plan shall be indicated by a plate with the symbol
used on Fire Control Plan.
1.4.2.6 Fire Control Plan shall be subject to updating and any changes to the Plan shall be recorded,
on a routine basis, by the officer responsible for fire protection.
1.4.2.7 Fire Control Plan shall be approved by the Flag State Maritime Administration or PRS, acting
on behalf of the Flag State Maritime Administration.
1.4.2.8 Fire control plan shall be marked with ship identification number which conforms to the IMO
ship identification scheme adopted by the Organization, in accordance with SOLAS Convention, reg. XI1/3.
1.4.3
Maintenance and Safety Operation Documentation
1.4.3.1 Cargo ships of gross tonnage 500 and above and passsenger ships shall carry the following
documentation:
.1 Fire protection systems and appliances maintenance plan;
.2 Fire training manual;
.3 Fire safety operational booklet.
The above documentation shall be marked with IMO ship identification number.
1.4.3.2 Fire protection systems and appliances maintenance plan shall contain information on
maintenance, testing and inspections of fire-extinguishing systems, appliances and equipment, carried out
by the crew, covering:
.1 water fire-extinguishing systems, fire pumps and fire hydrants, including fire hoses, nozzles and
international shore connections;
.2 all other fixed fire-extinguishing systems;
.3 fire detection and fire alarm systems, as well as warning signalization;
.4 automatic sprinkler systems;
.5 ventilation systems, including fire and smoke dampers, fans and their controls;
.6 emergency shut down of fuel supply;
.7 fire doors, including their controls;
.8 general emergency alarm systems;
.9 emergency escape breathing devices;
20
Fire Protection
.10 fire-extinguishers, including spare charges; and
.11 fire-fighter’s outfit.
Maintenance plan may be computer-based.
For passenger ships, Maintenance plan shall also cover low-location lighting of escape routes and
public address system.
For tankers, Maintenance plan shall also cover the inert gas system, the deck foam system, fire safety
arrangements in cargo pump-room, hydrocarbon gas detection systems and flammable gas detectors.
In ships to be assigned an additional mark in the symbol of class, the Maintenance plan shall also
cover special fire-fighting equipment required for the relevant ship.
Maintenance plan shall also take into account the guidelines specified in MSC/Circ. 850.
1.4.3.3 Training manual shall include instructions for fire emergency proceedings, as well as conducting
training and fire drills, within the following scope:
.1 general fire safety practice and precautions related to the dangers of smoking, electrical hazards,
flammable liquids and similar common shipboard hazards;
.2 general instructions for fire-fighting activities and fire-fighting procedures, including procedures
for notification of a fire and use of manually operated call points;
.3 fire-fighting procedures and the duties assigned to particular crew members;
.4 division of crew members into parties responsible for rescue and fire-fighting operations;
.5 meaning of the ship’s alarms;
.6 operation and use of fire-extinguishing systems and appliances;
.7 operation and use of fire doors;
.8 operation and use of fire dampers and smoke dampers;
.9 evacuation systems and equipment.
The Training manual shall be written in the working language of the ship and shall be provided in each
crew mess room and recreation room or in each crew cabin.
The Training manual may be prepared in the audio-visual form.
1.4.3.4 The Fire safety operational booklet shall contain the necessary information and instructions for the
safe operation of the ship and cargo handling operations in relation to fire safety.
The Fire safety operational booklet shall include information concerning the crew duties and
responsibilities for the general fire safety of the ship while loading and discharging cargo and while
underway.
Necessary fire safety precautions for handling different cargoes, such as: containers, general cargoes,
etc. shall be explained therein.
In the case of ships carrying dangerous cargoes and flammable bulk cargoes, the Fire safety
operational booklet shall also provide reference to the pertinent fire-fighting and emergency cargo
handling instructions contained in IMSBC Code, the IBC Code, the IGC Code and the IMDG Code.
The Fire safety operational booklet shall be provided in each crew mess room and recreation room or
in each crew cabin.
The Fire safety operational booklet shall be written in the working language of the ship.
The Fire safety operational booklet may be combined with Training manual.
For tankers, the Fire safety operational booklet shall include provisions for preventing fire spread to the
cargo area due to ignition of flammable gases or flammable vapours, as well as procedures for cargo tank gaspurging and gas-freeing.
Fire Protection of Cargo Ships
2
21
FIRE PROTECTION OF CARGO SHIPS
2.1
Ship Construction
2.1.1
Materials for Hull, Superstructures, Structural Bulkheads,
Decks and Deckhouses
The hull, superstructures, structural bulkheads, decks and deckhouses shall be constructed of steel or
steel equivalent material.
For the purpose of applying the definition of “steel equivalent material”, as specified in 1.2.40, the
applicable fire exposure shall be in accordance with the integrity and insulation standards given in the
appropriate tables relating to fire divisions. For example, where divisions such as decks or sides and ends of
deckhouses are permitted to have B-0 fire integrity, the applicable fire exposure shall be half an hour.
2.1.2
Materials Used for Outfitting the Ship Spaces
2.1.2.1
2.1.2.1.1
Requirements for the Use of Non-Combustible Materials
Insulating Materials and Structural Elements
Materials used for the insulation of walls, floors and ceilings, as well as the insulation of pipings and
ventilation ducts penetrating the ship spaces shall be non-combustible, except in cargo spaces, mail
rooms, baggage rooms and refrigerated compartments of service spaces.
Vapour barriers and adhesives used in conjunction with insulation, as well as insulation of pipe
fittings for cold service systems (refrigeration systems and chilled water piping for air-conditioning
systems) need not be of non-combustible materials, but they shall be kept to the minimum quantity
practicable and their exposed surfaces shall have low flame-spread characteristics.
In spaces where petrol products may be present, the insulation surface shall be impenetrable for these
products and their vapours. The fire insulation in such spaces can be covered by metal sheets (not
perforated) or by vapour barrier glass cloth accurately sealed at the joint.
Insulation materials, as well as structural materials with insulation containing asbestos are prohibited,
see MSC.1/Circ. 1374.
Insulating materials or structural materials with insulation, such as wall, ceiling and floor coverings,
fire doors, etc. shall be supplied by shipyards, repair yards and equipment manufacturers with asbestosfree declaration, taking into account Appendix 8 of the Guidelines for the Development of the Inventory
of Hazardous Materials (Resolution MEPC.197(62)).
2.1.2.1.2
Ceilings and Linings
All linings, ceilings, draught stops and their associated grounds shall be of non-combustible materials
in the following spaces:
.1 in accommodation spaces, service spaces and control stations in ships where method IC, specified
in 2.2.3.1, has been adopted; and
.2 in corridors and stairway enclosures serving accommodation spaces, service spaces and control
stations in ships where method IIC or IIIC, specified in 2.2.3.1, has been adopted.
2.1.2.2
2.1.2.2.1
Requirements for the Use of Combustible Materials
General Requirements
Non-combustible bulkheads, ceilings and linings fitted in accommodation spaces, service spaces and
control stations may be faced with combustible materials, facings, mouldings, decorations and veneers,
provided that such spaces are surrounded by non-combustible bulkheads, ceilings and linings in
accordance with the requirements specified in 2.1.2.2.2 to 2.1.2.2.4.
22
2.1.2.2.2
Fire Protection
Maximum Heat of Combustion of Combustible Materials
Combustible materials used on the surfaces of bulkheads, ceilings and linings, specified in 2.1.2.2.1
and 6.1.1.2.2, shall have the heat of combustion Q not exceeding 45 MJ/m2 of the area for the thickness
used. This requirement is not applicable to the surfaces of furniture fixed to linings or bulkheads.
Heat of combustion of material shall be determined from the formula:
Q = Q g qs , [MJ/m2]
where:
Q – heat of combustion for the thickness used, [MJ/m2;];
Qg – unitary heat of material combustion, determined according to EN ISO 1716: Reaction to fire tests for
products -- Determination of the gross heat of combustion (calorific value), [MJ/kg];
q – material density, [kg/m3];
s – material thickness, [m].
Materials used on the surfaces of bulkheads, ceilings and linings shall be provided with test certificate
confirming the material heat of combustion, issued by an approved laboratory.
2.1.2.2.3
Total Volume of Combustible Materials on the Surface Coverage
Where, in accordance with 2.1.2.2.1, on the surfaces of bulkheads, ceilings and linings combustible
materials are used, the total volume of the materials shall be as follows:
.1 the total volume of combustible facings, mouldings, decorations and veneers in accommodation
and service spaces shall not exceed a volume equivalent to 2.5 mm veneer on the combined area
of the bulkheads and ceilings linings. Furniture fixed to linings, bulkheads or decks need not be
included in the calculation of the total volume of combustible materials;
.2 in the case of ships fitted with automatic sprinkler system complying with the requirements of
3.3, the above volume may include some combustible materials used for erection of C Class
divisions.
2.1.2.2.4
Materials for Exposed Surfaces in Ship Spaces
The materials used for the following exposed surfaces shall have low flame-spread characteristics,
confirmed by test in accordance with the FTP Code, Annex 1, Part 5:
.1 exposed surfaces in corridors and stairway enclosures;
.2 exposed surfaces of ceilings in accommodation spaces, service spaces (except saunas) and
control stations;
.3 surfaces and grounds in concealed and inaccessible spaces in accommodation and service spaces,
as well as control stations.
In ships other than passenger ships, exposed surfaces in cabins, service spaces, public spaces and
control stations need not have low flame-spread characteristics.
2.1.2.2.5
Paints, Varnishes and other Finishing Materials
Paints, varnishes and other finishing materials used on exposed 19 interior surfaces within
accommodation spaces, service spaces, control stations and stairway enclosures shall not be capable of
producing excessive quantities of smoke and toxic products, this being determined in accordance with
the FTP Code, Annex 1, Part 2.
2.1.2.2.6
Primary Deck Coverings
Primary deck coverings, if applied within accommodation spaces, service spaces and control stations, shall
be made of approved materials which will not readily ignite, will not give rise to smoke or toxic or explosive
hazards at elevated temperatures, this being determined in accordance with the FTP Code, Annex 1, Part 6.
19
The exposed surfaces are the surfaces of bulkheads, decks, floor coverings, bulkheads and ceilings linings. The requirements
of this paragraph are not applicable to plastic pipes, electric cables and furniture
Fire Protection of Cargo Ships
2.1.2.2.7
23
The Total Mass of Combustible Materials in Ship Spaces
It is recommended, in accordance with guidelines specified in MSC. Circ. 1003, that in
accommodation spaces, service spaces and control stations (excluding floor coverings), the total mass of
combustible materials, such as: cable insulation, plastic pipes, veneers, outfitting, as well as combustible
materials used for furniture, bedding components and electrical appliances per unit area of the space shall
not exceed the following values:
– 5 kg/m2 – for corridors, stairways and control stations;
– 35 kg/m2 – for accommodation spaces;
– 45 kg/m2 – for service spaces surrounded by A Class divisions.
2.1.2.3
Waste Receptacles
Waste receptacles shall be constructed of non-combustible materials, capable of being closed and
shall have no openings in the sides or bottom.
The use of waste receptacles constructed of combustible materials in galleys, pantries, bars, garbage
handling or storage spaces and incinerator rooms is not precluded, provided they are intended purely for the
carriage of wet waste, glass bottles, metal cans and are suitably marked.
2.1.3
Structures of Aluminium Alloys
Where any part of the structure is made of aluminium alloy, the following requirements shall be
fulfilled:
.1 the insulation of aluminium alloy components of A or B Class divisions, except structure which is
non-load-bearing20, shall be such that the temperature of the structural core does not rise more than
200 °C above the ambient temperature at any time during the applicable fire exposure to the standard
fire test;
.2 special attention shall be given to the insulation of aluminium alloy components of columns,
stanchions and other structural members required to support lifeboat and liferaft stowage,
launching and embarkation areas, as well as A and B Class divisions to ensure:
.1 that for such members supporting lifeboat and liferaft areas and A Class divisions, the
temperature rise limitation, specified in sub-paragraph .1 shall apply at the end of one hour;
and
.2 that for such members required to support B Class divisions, the temperature rise limitation,
specified in sub-paragraph .1 shall apply at the end of half an hour.
2.1.4
Machinery Spaces of Category A
2.1.4.1
General Requirements
2.1.4.1.1 Machinery spaces of category A shall be enclosed by steel A Class bulkheads and decks
having the fire integrity as required for fire divisions separating the relevant adjacent spaces.
2.1.4.1.2 The crowns and casings of machinery spaces of category A shall be of steel construction
having the fire integrity as required for such machinery space.
2.1.4.1.3
steel.
20
The floor plating of normal passageways in machinery spaces of category A shall be made of
Load-bearing division is a deck or bulkhead including stiffeners, pillars, stanchions and other structural members which, if
eliminated, would adversely affect the designated structural strength of the ship.
If an aluminium deck is tested with insulation installed below the deck, then the result will apply to decks, which are bare on the
top. Aluminium decks may not be provided with deck coverings on the top unless tested with the deck covering, to verify that the
200°C temperature of the aluminium is not exceeded. However, when needed, any approved primary deck covering (not
specifically the one used during the standard fire test of the deck) may be used for meeting this requirement.
When spaces of categories (1) to (10) – according to 6.1.4 and of categories (1) to (5) and (10) – according to 6.1.5 are
located on top of aluminium decks, the deck does not need to be insulated from the upper side, provided the deck is
protected by an approved primary deck covering.
24
Fire Protection
2.1.4.1.4 Materials used for floors, lining of bulkheads, ceilings or decks in machinery spaces and
engine control rooms shall be non-combustible. Where there is a danger that oil may penetrate insulating
materials, these shall be protected against the penetration of oil or oil vapours.
2.1.4.1.5 Where oil-fired boilers are located in machinery spaces on ‘tweendecks and boiler rooms are
not separated from the machinery space by A Class divisions, the ‘tweendeck shall be provided with steel
tight coamings at least 0.2 m in height.
2.1.4.1.6 To prevent fires in machinery spaces, the guidelines given in MSC. 1/Circ.1321 shall be taken
into account in the design, assembly and maintenance of machinery installations and equipment.
2.1.4.2
Protection of Openings in Boundary Bulkheads of Machinery Spaces of Category A
2.1.4.2.1 The number of skylights, doors, ventilators, openings in funnels to permit exhaust ventilation
and other openings to machinery spaces shall be reduced to a minimum consistent with the needs of
ventilation and the proper and safe working of the ship.
2.1.4.2.2
Skylights in machinery casings shall be made of steel and shall not contain glass panels.
2.1.4.2.3 Glazed windows shall not be fitted in machinery space boundaries. However, glazed windows
may be fitted in engine control rooms within the machinery space.
2.1.4.2.4 Doors fitted in boundary bulkheads of machinery spaces of category A shall be reasonably
gastight and self-closing.
2.1.4.3
Means of Control in Machinery Spaces of Category A
2.1.4.3.1 Means of control shall be provided for:
.1 opening and closure of skylights, closure of openings in funnels which normally allow exhaust
ventilation and closure of ventilator dampers;
.2 stopping ventilating fans of machinery space ventilation system;
.3 stopping forced and induced draught fans, oil fuel transfer pumps, oil fuel unit pumps, lubricating
oil service pumps, thermal oil circulating pumps and oil separators;
.4 closing oil fuel pipes valves for storage, settling and daily service tanks situated in machinery
space above the double bottom;
.5 closing power-operated doors or the doors fitted with release mechanism, which are not
watertight power-operated doors.
2.1.4.3.2 Means of control, required above, shall be located outside the machinery spaces, where they
will not be cut off in the event of fire in the spaces they serve, with due regard to hot gases produced by
a fire in the space concerned.
2.1.4.3.3 The location of means of control in machinery spaces of category A shall be indicated by
a plate with the symbol used on Fire Control Plan.
2.1.4.4
Fan Rooms Serving Machinery Spaces of Category A containing
Diesel Engines
2.1.4.4.1 A fan room solely serving the machinery space or multiple spaces containing machinery
space may be treated as machinery space having little or no fire risk. In this case:
.1 vertical and horizontal boundaries between the fan room and the machinery space casing shall
have A-0 fire integrity;
.2 ducts penetrations shall fulfil the requirements specified in paragraph 11.2.6, Part VI –
Machinery Installations and Refrigerating Plants;
.3 ducts serving the machinery space shall be routed directly to the relevant fan(s) and from the fans
to the louvres;
Fire Protection of Cargo Ships
25
closing of the ventilation duct to/from the machinery space should be possible from outside the
machinery space. In such case, means for closing the ventilation duct or ducts for the machinery
space (i.e. fire dampers installed in accordance with the requirements stated in 11.2.6.2, Part VI –
Machinery Installations and Refrigerating Plants) can be located inside the ventilation room.
.4
2.1.4.4.2 A fan room solely serving the machinery space may be considered a part of the machinery
space. In such case:
.1 the requirements for fire integrity of horizontal boundaries between the fan room and the
machinery space do not apply;
.2 closing the ventilation duct to/from the machinery space shall be possible from outside the
machinery space. In this case, the means for closing the ventilation duct or ducts serving the
machinery space (i.e. a fire damper installed in accordance with the requirements specified in
paragraph 11.2.6.2, Part VI – Machinery Installations and Refrigerating Plants) shall be located
outside of the ventilation room.
2.1.4.4.3 For both cases described above, for any space(s) adjacent to the fan room superstructure, the
fire integrity of the separating bulkheads shall fulfil the relevant requirements specified in 2.2.2.
2.1.5
Store-Rooms for Paints and Flammable Liquids
Store-rooms for paints and flammable liquids shall be classified as spaces of category (9) – service
spaces of high fire risk. Walls and decks enclosing such store-rooms shall be A Class steel divisions,
having the fire integrity as required for fire divisions adjacent to the relevant spaces.
Exits from the store-rooms shall lead directly to the open deck or via corridor and stairway designed
for the purpose.
2.1.6
Welding Shops
Welding shops located outside machinery spaces shall be classified as spaces of category (9) – service
spaces of high fire risk. Walls and decks enclosing such welding shops shall be A Class steel divisions,
having the fire integrity as required for fire divisions separating adjacent spaces.
Exit from the welding shop shall lead directly to the open deck.
Welding shops located within machinery spaces shall be situated at a distance of not less than 5 m
from fuel and oil tanks and from the spaces of fuel treatment (e.g. fuel separators). They shall be
enclosed by A-0 Class divisions, the deck within the welding shop being of A-60 Class standard.
2.1.7
Saunas
Construction and arrangement of saunas shall fulfil the requirements specified in 6.1.1.7. The
boundaries separating the sauna from other spaces except those inside of the perimeter and spaces of
categories (5), (7) and (10), specified in 2.2.2.2, shall be insulated to A-60 Class standard.
2.1.8
Galleys
2.1.8.1 The walls and decks enclosing galleys shall be of A Class standard, with fire integrity as
required for service spaces of high fire risk, in accordance with Tables given in 2.2.2 for divisions
separating the relevant adjacent spaces. The entrance doors shall be self-closing.
2.1.8.2
2.2
Floors, wall linings and suspended ceilings shall be made of non-combustible materials.
Fire Divisions
2.2.1
2.2.1.1
Construction of the Division
A, B and C Class Fire Divisions
2.2.1.1.1 Insulated A Class bulkheads and decks used on board ships, including means of affixing the
insulation to the A Class structural members, shall be consistent with the materials, details and
arrangements used during fire tests, conducted within type approval tests of the given division. The fire
test report shall contain information given in Annex to MSC.1/Circ.1435.
26
Fire Protection
2.2.1.1.2 A division consisting of a non-combustible core and combustible veneer may be accepted as
B or C Class division after it has undergone the following tests:
.1 core non-combustibility test in accordance with the FTP Code, Annex 1, Part 1;
.2 smoke and toxic products test of the veneer in accordance with the FTP Code, Annex 1, Part 2;
.3 surface flammability test of the veneer in accordance with the FTP Code, Annex 1, Part 5.
To be accepted as B Class division, the above-mentioned division shall additionally undergo the test
required for B Class divisions, as specified in the FTP Code, Annex 1, Part 3.
2.2.1.1.3 Light weight constructions (honeycomb type) made of steel or equivalent material may be
used as non-load bearing internal A Class divisions in accommodation and service spaces, provided they
have successfully passed the relevant standard fire test according to the FTP Code, Annex 1, Part 3.
2.2.1.2
Draught Stops
2.2.1.2.1 Draught stops are tight barriers aimed at preventing the spread of smoke and fire, as well as
preventing a draught of air containing oxygen from sustaining a fire in areas behind ceilings, panellings or
linings where this cannot readily be seen.
2.2.1.2.2 Air spaces behind ceilings, panellings or linings in accommodation spaces, service spaces,
control stations and corridors shall be divided by draught stops spaced not more than 14 m.
2.2.1.2.3 In the vertical direction, such air spaces, including those behind linings of stairways and lift
trunks, shall be closed by draught stops at each deck.
2.2.1.2.4 To construct draught stops, the following methods may be applied:
.1 the extension of B or C Class bulkhead, ceiling or lining;
.2 steel sheet not less than 1 mm in thickness, stiffened, intermittently welded to the ship's structure
and the top profile of the bulkhead or fastened mechanically to the ceilings or linings;
.3 non-combustible board, fastened mechanically to the ship's structure, bulkheads, ceilings or
linings;
.4 A Class mineral wool insulation, not less than 20 mm in thickness, faced on each side with
expanded metal mesh, the mesh on one side being attached to the ship's structure, or expanded
metal mesh being fitted on one side and non-combustible cloth (glass-cloth) on the other side of
mineral wool insulation.
Other equivalent arrangements may be accepted.
2.2.1.2.5
Where continuous ceilings are used, the draught stops shall be coplanar with the bulkheads.
2.2.1.2.6 Draught stops are not required in public spaces with open ceilings (perforated ceilings) with
openings of 40% or more and arranged in such a way that a fire behind the ceiling can be seen and easily
extinguished.
2.2.2
Fire Integrity of Vertical and Horizontal Divisions
2.2.2.1 The minimum fire integrity of vertical divisions (walls, bulkheads) separating adjacent spaces
shall be in accordance with Table 2.2.2-1. The minimum fire integrity of bulkheads forming horizontal
divisions (decks) shall be in accordance with Table 2.2.2-2.
2.2.2.2 The following principles shall govern the application of the Tables:
.1 where only one value is given for fire integrity standards of a division between two spaces, this
value shall be used for all cases;
.2 the dash means that there are no restrictions as far as material and fire integrity of a given
division are concerned;
.3 for determining the appropriate fire integrity standards to be applied, the spaces are classified
according to their fire risk. Where there exists doubt as to classification of space to one of the
below-given categories, it shall be considered as a space within the relevant category having the
Fire Protection of Cargo Ships
.4
27
most stringent boundary requirements. The title of each category is intended to be typical rather
than restrictive;
smaller, enclosed rooms within a space that have less than 30% communicating openings to that
space are considered separate spaces. The fire integrity standard of the boundary bulkheads and
decks of such smaller rooms shall be as prescribed in Tables 2.2.2-1 and 2.2.2-2.
Spaces of the ship are divide into 11 categories depending on the degree of risk of fire:
(1) Control stations:
– spaces containing emergency sources of power and lighting (spaces containing accumulator batteries,
emergency generating sets compartments);
– wheelhouse and chartroom, radar transmitter room;
– spaces containing the ship's radio equipment;
– fire control stations;
– control rooms for propulsion machinery when located outside the propulsion machinery space;
– spaces containing centralized fire alarm equipment.
(2) Corridors – corridors and lobbies.
(3) Accommodation spaces – see the definition given in 1.2.51, excluding corridors.
(4) Stairways – interior stairways, lifts, totally enclosed emergency escape trunks and escalators
(except those wholly contained within the machinery spaces) and enclosures thereto. A stairway
which is enclosed at one level only shall be regarded as part of the space from which it is not
separated by a fire door.
(5) Service spaces of minor fire risk:
– lockers and store-rooms having a deck area less than 4 m2, not having provisions for the storage
of flammable liquids, as well as drying rooms and laundries;
– identifiable spaces containing distribution boards, having a deck area of less than 4 m2;
– refrigerated provision chambers if thermally insulated with non-combustible material.
(6) Machinery spaces of category A – see the definitions given in 1.2.65.
(7) Other machinery spaces:
– machinery spaces, specified in 1.2.64, excluding machinery spaces of category A;
– electrical equipment rooms (e.g. auto-telephone exchange, air-conditioning duct spaces).
(8) Cargo spaces – all spaces used for cargo (including cargo oil tanks) and trunk ways and hatchways
to such spaces.
(9) Service spaces (high fire risk) – galleys, pantries containing cooking appliances, paint and readily
ignitable materials rooms, lockers and store-rooms having areas of 4 m2 or more, store-rooms for
flammable liquids, saunas, workshops other than those forming part of the machinery spaces, as
well as spaces for the storage and processing of garbage, as well as refrigerated provision chambers
if insulated with combustible material.
(10) Open decks:
– open deck spaces and enclosed promenades clear of lifeboat and liferaft embarkation and
lowering stations. To be considered in this category, enclosed promenades shall have no
significant fire risk, meaning that furnishings shall be restricted to deck furniture. In addition,
such spaces shall be naturally ventilated by permanent openings;
– air spaces (the spaces outside superstructures and deckhouses).
(11) Ro-ro spaces and vehicle spaces – spaces defined in 1.2.54 and 1.2.55.
28
Fire Protection
Table 2.2.2-1
Fire integrity of bulkheads separating adjacent spaces
Spaces
Control stations
(1)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
A-0
A-0
A-60
A-0
A-15
A-60
A-15
A-60
A-60
*
A-60
C
B-0
B-0
c)
A-0
B-0
A-60
A-0
A-0
A-0
*
A-30
B-0
c)
A-0
B-0
A-60
A-0
A-0
A-0
*
A-30
B-0
B-0 A-60
c)
c)
A-0
A-0
A-0
A-0
A-0
*
A-30
C
A-60
A-0
A-0
A-0
*
A-0
(5)
(6)
(7)
(8)
(9)
(10)
(11)
*
A-0
A-0
A-60
*
A-0
A-0
A-0
*
A-0
*
A-0
*
A-0
A-0
*
A-30
–
*
e)
Corridors and lobbies
a),b)
Accommodation
spaces
(3)
Stairways
(4)
Service spaces
(low risk)
(5)
C
Spaces
(1)
Machinery spaces
of category A
(6)
Other machinery
spaces
(7)
Cargo spaces/
conventional cargo
holds
(2)
(3)
(4)
d)
g)
A-0
f)
(8)
Service spaces (high
risk)
(9)
Open decks
d)
(10)
A-0j)
A-30h)
Ro-ro and vehicle
spaces
(11)
Table 2.2.2-2
Fire integrity of decks separating adjacent spaces
Space
below ↓
Space→
above
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(1)
A-0
A-0
A-0
A-0
A-0
A-60
A-0
A-0
A-0
*
A-60
Corridors and lobbies (2)
A-0
*
*
A-0
*
A-60
A-0
A-0
A-0
*
A-30
A-0
*
A-0
*
A-60
A-0
A-0
A-0
*
A-30
Control stations
Accommodation spaces
A-60
(3)
Stairways
(4)
A-0
A-0
A-0
*
A-0
A-60
A-0
A-0
A-0
*
A-30
Service spaces (low risk) A-15
(5)
A-0
A-0
A-0
*
A-60
A-0
A-0
A-0
*
A-0
*
A-60i)
A-30 A-60
*
A-60
Machinery spaces
of category A
A-60 A-60 A-60 A-60 A-60
(6)
Other machinery spaces A-15
(7)
A-0
A-0
A-0
A-0
A-0
*
A-0
A-0
*
A-0
Cargo spaces/
conventional cargo
holds
A-60
A-0
A-0
A-0
A-0
A-0
A-0
*
A-0
*
A-0
Service spaces (high
A-60
risk)
(9)
A-0
A-0
A-0
A-0
A-0
A-0
*
A-0d)
*
A-30
*
*
*
*
*
*
*
*
–
A-0
A-0
A-60
A-0
A-0
Open decks
(8)
(10)
*
Ro-ro and vehicle spaces A-60 A-30 A-30 A-30
(11)
A-30 A-0h)
h)
A-30h)
Fire Protection of Cargo Ships
29
Notes to Tables 2.2.2-1 and 2.2.2-2:
a)
No special requirements are imposed upon bulkheads in methods IIC and IIIC of fire protection.
b)
In the case of method IIIC, B-0 Class bulkheads shall be provided between spaces or groups of spaces of 50 m2 and over in
area.
c)
For the choice of division type – see 2.2.3 and 2.2.4.
d)
Where spaces are of the same numerical category, a bulkhead or deck of the rating shown in the Tables is only required
when the adjacent spaces are for a different purpose, e.g. in category (9), a galley next to other galley does not require a
bulkhead, but a galley next to a paint room requires A-0 bulkhead.
e)
Bulkheads separating the wheelhouse, chartroom and radio room from each other may be of B-0 rating.
f)
A-0 rating may be used only if no dangerous goods are intended to be carried or if such goods are stowed not less than 3 m
horizontally from such bulkhead.
g)
For cargo spaces in which dangerous goods are intended to be carried, the requirements of 2.10 apply.
h)
Effective as of 1 July 2014.
i)
If the machinery space in category (7) has low fire risk, A-0 Class bulkheads may be used. To determine such space – see
6.1.4.2(10).
* Where an asterisk appears in the Tables, the division is required to be of steel or other equivalent material but is not required
to be of A Class standard. However, where a deck, except an open deck, is penetrated for the passage of the electric cables,
pipes and vent ducts, such penetrations shall be made tight to prevent the passage of flame and smoke. Divisions between
control stations (emergency generators) and open deck may have air intake openings without means for closure, unless a
fixed gas fire-extinguishing system is fitted.
2.2.2.3 Continuous B Class ceilings or linings, in association with the relevant decks or bulkheads,
may be accepted as contributing, wholly or in part, to the required fire integrity of a division.
2.2.2.4 External boundaries of superstructures and deckhouses which are required in 2.1.1 to be of
steel or other equivalent material may be pierced for the fitting of windows and sidescuttles other than of
A Class, provided that in this Part of the Rules there is no requirement for such boundaries to have A
Class fire integrity. Similarly, such boundaries may be fitted with doors other than A Class doors made
of materials other than steel, type approved.
2.2.2.5 The use of fire division with fire integrity higher than the division with fire integrity required
by the Rules in the range of the same type of division, e.g. B-15 Class division instead of B-0 Class,
A-15 Class division instead of A-0 Class, etc. is permitted.
2.2.3
Divisions within Accommodation Spaces, Service Spaces and Control Stations
2.2.3.1 One of the following methods of fire protection shall be adopted in accommodation spaces,
service spaces and control stations:
– me t h o d I C – all internal divisional bulkheads shall be made as B or C Class divisions;
accommodation and service spaces are not required to be fitted with automatic sprinkler system and
fire detection and fire alarm system, except that smoke detectors shall be provided in corridors,
stairways and escape routes, in compliance with 2.4.1.1.1;
– me t h o d I I C – all spaces in which fire might be expected to originate shall be fitted with automatic
sprinkler system in compliance with 2.4.1.1.2, with no restriction on the type of internal divisional
bulkheads;
– me t h o d I I I C – the fitting of fire detection and fire alarm system, in compliance with 2.4.1.1.3, is
required in all spaces in which a fire might be expected to originate, with no restriction on the type of
internal divisional bulkheads, except that in no case must the area of any accommodation space or
spaces surrounded by an A or B Class division exceed 50 m2. The area of public space may be
permitted to increase up to 75 m2.
2.2.3.2 The requirements for the use of non-combustible materials in the construction of and insulation
of boundary bulkheads of machinery spaces, control stations, service spaces, etc. and the requirements
concerning the protection of stairway enclosures and corridors shall be common for all three methods.
2.2.3.3 All divisions required to be B Class divisions shall extend from deck to deck and to the shell or
other boundaries. Where continuous B Class ceilings or linings are fitted on both sides of the bulkhead,
the bulkhead may terminate at such ceilings or linings.
30
Fire Protection
2.2.3.4 For a given method of fire protection, those divisions which are not required to be of A or B
Class, shall be:
– for method IC – at least C Class construction;
– for method IIC – any, except in individual cases where C Class bulkheads are required in accordance
with Table 2.2.2-1;
– for method IIIC – any, except that in no case must the area of any accommodation space or spaces
surrounded by A or B Class division exceed 50 m2 (except in individual cases where C Class bulkheads
are required in accordance with Table 2.2.2-1). The area of public space may be permitted to increase
up to 75 m2 .
2.2.3.5 Interpretations regarding the use of construction materials in accommodation spaces on cargo ships
are given in MSC/Circ. 1120, with reference to SOLAS regulation II-2/5.3 and II-2/6.2, see Appendix, tables –
Method IC Method IIC – IIIC.
2.2.4
Protection of Stairways and Lift Trunks in Accommodation Spaces, Service Spaces and
Control Stations
2.2.4.1 Stairways which penetrate only a single deck shall be protected at least at one level by B-0
Class divisions and self-closing doors. Lifts which penetrate only a single deck shall be surrounded by A0 Class divisions with A-0 Class steel doors at both levels.
Dumb-waiters shall be regarded as lifts.
2.2.4.2 Stairways and lift trunks which penetrate more than a single deck shall be surrounded by at
least A-0 Class divisions and be protected by at least A-0 class steel self-closing doors at all levels 21.
2.2.4.3 In ships having accommodation for 12 persons or less, where stairways penetrate more than
one deck and where there are at least 2 escape routes direct to the open deck at every accommodation
level, stairway enclosures and lift trunks may be of B-0 Class standard instead of A-0 Class standard.
2.2.5
Closures of Openings in Fire Divisions, Fire Divisions Penetrations and Prevention of Heat
Transmission
2.2.5.1 All openings in fire divisions shall be provided with closing arrangements of fire integrity not lower
than that of the division, in which they are fitted.
2.2.5.2 Pipings, ventilation ducts and cables penetrations through A Class divisions are subject to tests
in accordance with the FTP Code requirements, Annex 1, Part 3.
Pipe penetration testing is not required where the penetration is made of steel or steel equivalent
material having a thickness of 3 mm or greater and a length of not less than 900 mm, fitted in such a way
that the distance from the end of penetration to the division, on each side of the division, is not less than 450
mm and there are no openings. Such penetrations shall be properly insulated with an insulant of the same
class over a distance of at least 450 mm, measured from the surface of the division. Fire integrity of pipe
penetration insulation shall be the same as that of the division.
Similarly, testing of steel ventilation ducts is not required where steel sleeves are made in accordance
with the requirements specified in 11.2, Part VI – Machinery Installations and Refrigerating Plants, are
directly joined to ventilation ducts by means of riveted or screwed flanges or by welding and are suitably
insulated by the insulation of the same fire integrity as the division, for a distance of 450 mm, measured
from the surface of the division.
This requirement also applies to the exterior boundaries of superstructures and deckhouses which are
required to be A-60 Class divisions.
2.2.5.3 Pipe penetrations through B Class divisions are subject to fire tests required for the division in
which they are fitted.
21
Interpretations regarding the construction of stairways on cargo ships are given in MSC/Circ.1120 with reference to SOLAS
regulation II-2/9.2.3.4.1, see Appendix, Figs. 1, 2.1 and 2.2.
Fire Protection of Cargo Ships
31
Testing is not required for steel or copper pipe penetrations, as well as for penetrations by pipes other
than steel or copper lined with a steel sleeve having a thickness of not less than 1.8 mm and a length of
not less than 900 mm – for pipe diameters of 150 mm or more and of not less than 600 mm for pipe
diameters of less than 150 mm (equally divided to each side of the division). If the pipe is not connected
to the ends of the sleeve, the clearance between the sleeve and the pipe shall not exceed 2.5 mm or any
clearance between the pipe and the sleeve shall be made tight by means of non-combustible or other
suitable material.
Where B Class divisions are penetrated for the passage of electric cables, pipes, trunks, ducts, etc. or
for the fitting of ventilation terminals, lighting fixtures and similar devices, such penetrations shall be
lined with a steel sleeve in accordance with the requirements specified in 11.2.9, Part VI – Machinery
Installations and Refrigerating Plants.
2.2.5.4 Uninsulated metallic pipes penetrating A Class and B Class divisions shall be made of
materials having a melting temperature which exceeds 950 ºC – for A-0 Class divisions and 850 ºC – for
B-0 Class divisions.
2.2.5.5 Pipings and ventilation ducts penetrating A Class and B Class fire divisions shall comply with
the requirements of paragraphs 1.16.11.5 and 11.2, Part VI – Machinery Installations and Refrigerating
Plants; cables penetrating fire divisions – with the requirements specified in sub-chapter 16.8.6, Part VIII
– Electrical Installations and Control Systems.
2.2.5.6 In the case of steel and aluminium structures, to avoid heat transmission at intersections and
terminal points of insulation of decks or bulkheads, the insulation of decks or bulkheads regarded as A
Class or B Class fire divisions shall extend beyond the penetration, intersection or terminal point for a
distance of at least 0.45 m 22.
If a space is divided with a deck or bulkhead of A Class standard having insulation of different values, the
insulation with the higher value shall extend on the deck or bulkhead with the insulation of the lesser value for
a distance of at least 0.45 m.
2.2.6
Doors and Windows in Fire Divisions
2.2.6.1 The fire integrity of doors shall be equivalent to that of the division in which they are fitted,
this being determined in accordance with the FTP Code requirements, Annex 1, Part 3. Doors and door
frames in A Class divisions shall be constructed of steel or steel equivalent material. Doors in B Class
divisions shall be constructed of non-combustible material.
Doors approved as A Class without the sill being part of the frame shall be so installed that the gap
under the door does not exceed 12 mm and a non-combustible sill shall be so installed under the door
that floor coverings do not extend beneath the closed door.
Doors approved as B Class without the sill being part of the frame shall be so installed that the gap
under the door does not exceed 25 mm.
In ships, in which IC method of fire protection, specified in 2.2.3.1, is adopted, PRS may permit the
use of combustible materials in doors separating cabins from individual interior sanitary
accommodations, such as e.g. showers.
Where the required fire-resisting divisions are replaced by divisions of a higher standard, the fire
integrity of the door need not be higher than that of the required division.
2.2.6.2 Doors required to be self-closing shall not be fitted with hold-back hooks. However, hold-back
arrangements fitted with remote release hooks or other interlocking arrangements capable of automatic
release in the event of remote release control failure or voltage decay, may be used.
22
Details of measures to be adopted for avoiding heat transmission at intersections and terminal points of insulation of decks
or bulkheads are given in MSC/Circ.1120 for SOLAS regulation II-2/9.3.4, for details see Appendix, figures 1 and 2.
Alternative design may be accepted, provided that the effectiveness of such design is verified by an appropriate tests
performed in the same manner as those specified in the FTP Code.
In the case where the lower part of insulation has to be cut for drainage, the construction shall be in accordance with the
structural details as given in Fig. 3 in the Appendix.
32
Fire Protection
2.2.6.3 In corridor bulkheads, ventilation openings may be permitted only in and under the doors of
cabins and public spaces. Ventilation openings are also permitted in B Class divisions leading to lavatories,
offices, pantries, lockers and store-rooms. The openings shall be provided only in the lower part of a door.
The total clear area of such openings shall not exceed 0.05 m2.
Alternatively, a non-combustible air balance duct routed between the cabin and the corridor, located
below the sanitary unit is permitted where the cross-sectional area of the duct does not exceed 0.05 m2.
Ventilation openings, except those under the door, shall be fitted with a grill made of non-combustible
material.
2.2.6.4
Watertight doors regarded as fire doors need not be insulated.
2.2.6.5 Doors fitted in fire divisions (self-closing and automatically-closing doors included) shall be so
arranged as to be capable of being opened manually from either side of the division by one person only.
2.2.6.6 Windows and portholes in the ship shell plating, as well as in superstructures and deckhouses shall
comply with the requirements of sub-chapter 7.2, Part III – Hull Equipment.
2.3
Means of Escape
2.3.1
General Requirements
2.3.1.1 Means of escape shall allow persons on board safe and swift escape to the lifeboat and liferaft
embarkation deck. This deck shall be accessible from other open decks connected with means of escape.
2.3.1.2 The escape routes are routes for escape and also for access. The door locking arrangement shall
be such that it does not obstruct these two objectives (escape and access) and that the doors in the way of
escape routes can be opened from both sides. Doors along any designated escape routes which require
keys to unlock them when moving in the direction of escape shall not be permitted.
2.3.1.3 Unless expressly provided otherwise in the present Rules, at least two widely separated and ready
for use means of escape shall be provided from all spaces or group of spaces.
2.3.1.4
Lifts shall not be considered as forming one of the required means of escape.
2.3.1.5 To facilitate a swift and safe means of escape to the lifeboat and liferaft embarkation deck,
overhead hatches fitted along the escape routes shall comply with the following requirements:
.1 the securing devices shall be of a type which can be opened from both sides;
.2 the maximum force needed to open the hatch cover shall not exceed 150 N; and
.3 the use of a spring equalizing, counterbalance or other suitable device on the hinge side to
reduce the force needed for opening is acceptable.
2.3.1.6 The lift car shall ensure safe evacuation of persons, also in the emergency conditions. The lift car
shall incorporate an escape hatch at the top of at least 0.5 x 0.5 m to enable evacuation when the lift
automatically stops at a deck in the event of power failure. It should only be possible to open this from the
outside, using a special key kept in a box by the hatch. The lifts shall be provided with a steel ladder allowing
to take the persons, through escape hatch, to the nearest landing.
2.3.1.7 Escape routes in all machinery spaces, cargo pump-rooms, cargo spaces and service spaces, in
which the crew is normally employed or to which they have access, as well as in public spaces, corridors,
stairways and on open decks, leading to assembly stations, as well as exits and emergency exits from
spaces shall be marked with symbols complying with Res. A.760(18).
These symbols shall be placed at an adult person eye level and shall be of photoluminescent material
or of other material and marked by electric illumination, supplied from the emergency source of power.
2.3.1.8 Escape routes shall be provided with lighting supplied from the main and the emergency source
of power, see Chapter 6, Part VIII – Electrical Installations and Control Systems.
Fire Protection of Cargo Ships
2.3.2
2.3.2.1
33
Means of Escape from Accommodation Spaces, Service Spaces
and Control Stations
General Requirements
2.3.2.1.1 In accommodation and service spaces in which the crew is normally employed, stairways and
ladders shall be provided giving ready means of escape to the lifeboat and life raft embarkation deck.
2.3.2.1.2 At all levels of accommodation there shall be provided at least two widely separated means of
escape from each enclosed space or group of spaces.
An enclosed space is a place in which the crew may normally be present, situated within another
space, e.g. smoking room located in public space. Such public space shall be provided with 2 means of
escape.
Accommodation cabins composed of more than one space may have only one means of escape.
2.3.2.1.3 Unless expressly provided otherwise in sub-chapter 2.3, corridors, lobbies or parts of
corridors from which there is only one means of escape shall be prohibited.
Dead-end corridors used in service areas which are necessary for the practical utility of the ship, such as
fuel oil stations and athwarship supply corridors may be permitted, provided such dead-end corridors are
separated from crew accommodation areas and are inaccessible from passenger accommodation areas. A part
of a corridor that has a depth not exceeding its width is considered a recess or local extension and is permitted.
2.3.2.1.4 All stairways in accommodation and service spaces, as well as in control stations shall be of
steel frame construction or of frame construction made from other equivalent material.
2.3.2.1.5 If a radiotelegraph station has no direct access to the open deck, two means of escape from
such station shall be provided. One of the means of escape may be a porthole or a window of sufficient
size to enable the evacuation.
2.3.2.1.6 The doors along the escape routes shall open outwards, except that:
.1 the cabin doors may open into the cabins in order to avoid injury to persons in the corridor when
the door is opened;
.2 the doors in the vertical emergency escape trunks may open out of the trunk in order to permit the
trunk to be used both for escape and for access.
2.3.2.2
Escape from Spaces Located below the Lowest Open Deck
Below the lowest open deck the main means of escape shall be a stairway and the second means of
escape may be a trunk or a stairway.
2.3.2.3
Escape from Spaces Located above the Lowest Open Deck
Above the lowest open deck the means of escape shall be stairways or doors leading to an open deck
or a combination thereof.
2.3.2.4
Dead-end Corridors 23
Dead-end corridors having a length of more than 7 m shall be prohibited.
In well-grounded cases, dead-end corridors are permitted in spaces located above the lowest open
deck, provided that escape route from the dead-end of such corridor is a steel ladder leading to a deck
above from which evacuation is possible and that there are two means of escape, complying with 2.3.2.3,
at the end of the other end of such corridor. A window leading to the open deck is not accepted as
a means of escape.
2.3.2.5
23
Width and Continuity of Escape Routes
Dead-end corridor – a corridor or its part from which there is only one means of escape.
34
Fire Protection
Stairways and corridors used as escape routes shall be not less than 0.7 m in clear width and shall
have a handrail on one side. Stairways and corridors with a clear width of 1.8 m and over shall have
handrails on both sides.
Clear width is the distance between the handrail and the bulkhead on the other side or between the
handrails. The angle of inclination of stairways should be, in general, 45º. In well-justified cases, the
angle of inclination may be increased to 50º; for machinery spaces and small spaces – to 60º.
The width of doorways which give access to a stairway shall be not less than the clear width of the
stairway.
2.3.2.6
Exemption from Requirements of the Two Means of Escape
In exceptional cases, PRS may dispense with one of the means of escape for crew spaces that are
entered only occasionally, if the required escape route is independent of watertight doors.
2.3.2.7
Location of Emergency Escape Breathing Devices
In all ships of 500 gross tonnage and upwards engaged on international voyages, at least 2 emergency
escape breathing devices complying with 5.1.5 shall be located along the escape routes – in easily
accessible places, within accommodation spaces.
2.3.3
2.3.3.1
Means of Escape from Machinery Spaces
Escape from Machinery Space of Category A
From each machinery space of category A, two means of escape shall be provided which shall consist
of either:
.1 two sets of steel stairways or ladders 24, as widely separated as possible, leading to doors in the
upper part of the machinery space and from which access is provided to the open deck. One of
these stairways or ladders shall be located within a protected enclosure having the fire integrity as
required for stairways in 2.2.2, category (4), from the lower part of the machinery space to a safe
position outside the space. This enclosure shall be provided with self-closing fire doors of the
same fire integrity standard. The ladder or stairway shall be fixed in such a way that heat is not
transferred into the enclosure through non-insulated fixing points. The protected enclosure shall
have a free opening of at least 800 mm x 800 mm, the ladder being included. The enclosure shall
be provided with emergency lighting; or
.2 one steel stairway or ladder leading to a door in the upper part of machinery space and from
which access is provided to the open deck and additionally, in the lower part of machinery space
and in position well separated from the ladder or stairway referred to, a steel door capable of
being operated from each side and which provides access to a safe escape route from the lower
part of the space to the open deck.
2.3.3.2
Exemption from Requirements of the Two Means of Escape
In ships of less than 1000 gross tonnage, one of the means of escape required in 2.3.3.1 may be
dispensed with, due regard being paid to the dimension and the arrangement of the upper part of the
machinery space.
In ships of less than 1000 gross tonnage, the means of escape from machinery spaces of category A
need not fulfil the requirements for an enclosed fire shelter, specified in 2.3.3.1.1.
In the steering gear space, a second means of escape shall be provided when the emergency steering
position is located in the space unless there is direct access to the open deck.
2.3.3.3
Escape from Machinery Spaces other than those of Category A
From machinery spaces other than those of category A, two means of escape shall be provided, except
that a single escape route may be accepted for spaces which are entered only occasionally and for spaces
where the maximum distance to the door is 5 m or less.
24
Ladders having strings of flexible steel wire ropes are not acceptable in such escape routes.
Fire Protection of Cargo Ships
2.3.3.4
35
Inclined Ladders and Stairways
All inclined ladders/stairways fitted to comply with 2.3.3.1 with open treads in machinery spaces
being part of or providing access to escape routes but not located within a protected enclosure shall be
made of steel. Such ladders/stairways shall be fitted with steel shields attached to their undersides, such
as to provide escaping personnel protection against heat and flame from beneath.
2.3.3.5
Escape 25 from Machinery Control Rooms in Machinery Spaces of Category A
Two means of escape shall be provided from the machinery control room located within a machinery
space. At least one of these escape routes shall provide a continuous fire shelter to a safe position outside
the machinery space
2.3.3.6
Escape26 from Main Workshops in Machinery Spaces of Category A
Two means of escape shall be provided from the main workshop within a machinery space. At least
one of these escape routes shall provide a continuous fire shelter to a safe position outside the machinery
space.
2.3.3.7
Location of Emergency Escape Breathing Devices
On all ships of 500 gross tonnage and upwards engaged on international voyages, within the
machinery spaces of category A, emergency escape breathing devices complying with 5.1.5 shall be
located at visible places. The number of the devices shall be as follows:
.1 in machinery spaces of category A containing internal combustion engines used for main
propulsion:
– 2 pcs. in one level spaces, located along escape routes near escape ladders or stairways. In
spaces with more than one level, disregarding machinery spaces, additionally 1 pc. on every
platform or deck level, located near escape ladders or stairways;
– 1 pc. in ECR if ECR is located within the machinery space;
– 1 pc. in the area of workshops if they are located in the machinery space. The breathing
device shall be located outside, near escape doors from the workshop area. The device is not
required if there is a direct access to an escape route from the workshop area.
Additional devices may be required, depending on the size and arrangement of the machinery
space;
.2 in machinery spaces of category A, other than those containing internal combustion engines used
for main propulsion:
– 1 pc. on each platform or deck level, located near escape ladders or stairways. The breathing
device is not required if the machinery space has one level and there is a direct access to an
escape route.
2.4
2.4.1
Fire Protection of Accommodation Spaces, Service Spaces and Control Stations
Fixed Fire Detection and Fire Alarm System and Fire-Extinguishing Systems
2.4.1.1 On cargo ships, accommodation spaces, and service spaces shall be protected by a fixed fire
detection and fire alarm system complying with the requirements of 4.1 and/or automatic sprinkler
system complying with the requirements of 3.3, depending on a protection method adopted as specified
in 2.2.3.1, as follows:
1. in ships in which method IC has been adopted, all corridors, stairways and escape routes within
accommodation spaces and service spaces shall be provided with a fixed fire detection and fire
alarm system to provide smoke detection;
2. in ships, in which method IIC has been adopted, accommodation spaces, galleys and other
service spaces, except spaces which afford no substantial risk such as void spaces, sanitary
25
26
The requirement applies to ships subject to SOLAS Convention, constructed on or after 1 January 2016.
The requirement applies to ships subject to SOLAS Convention, constructed on or after 1 January 2016.
36
Fire Protection
spaces, etc. shall be fitted with an automatic sprinkler system. In addition, a fixed fire detection
and fire alarm system shall be installed in all corridors, stairways and escape routes within
accommodation spaces to provide smoke detection;
3. in ships in which method III C has been adopted, all accommodation spaces, except spaces which
afford no substantial fire risk such as void spaces, sanitary spaces, etc. shall be fitted with a fixed
fire detection and fire alarm system. In addition, a fixed fire detection and fire alarm system shall
be so installed and arranged as to provide smoke detection in all corridors, stairways and escape
routes within accommodation spaces.
Service spaces located away from the accommodation area need not be fitted with a fixed fire
detection and fire alarm system.
2.4.1.2 Manually operated call points shall be installed throughout the accommodation spaces, service
spaces and control stations in accordance with the requirements of 4.1.2.
2.4.2
Air Supply and Smoke Extraction System in Control Stations
Control stations located outside machinery spaces shall be fitted with air supply and smoke extraction
system complying with the requirements specified in sub-chapter 11.11, Part VI – Machinery
Installations and Refrigerating Plants to ensure that, in the event of fire, the machinery and equipment
contained therein may be supervised and continue to function effectively.
2.4.3
Portable Fire-Extinguishers
2.4.3.1 The number of portable fire-extinguishers in public spaces shall be 1 fire-extinguisher per 250
m2 of deck area or fraction thereof.
2.4.3.2 In corridors, the walking distance to fire-extinguishers shall not exceed 25 m within each deck
and main vertical zone.
2.4.3.3
Hospital shall be provided with at least one fire-extinguisher.
2.4.3.4 Laundry drying rooms and pantries containing cooking appliances shall be provided with at
least one fire-extinguisher.
2.4.3.5 Control stations (other than the wheelhouse) shall be provided with at least one fireextinguisher.
2.4.3.6 Where the wheelhouse is 50 m2 and more, at least two fire-extinguishers shall be provided;
where the wheelhouse is less than 50 m2 – only one extinguisher. Additional fire-extinguisher shall be
provided in the chartroom.
If the wheelhouse is adjacent to the chartroom and has a door giving direct access to the chartroom,
no additional fire-extinguisher is required in the chartroom.
2.4.3.7 Lockers and store-rooms (having a deck area of 4 m2 or more), mail and baggage rooms,
workshops (not part of machinery spaces) shall be provided with one extinguisher.
2.4.3.8 In ships of 1000 gross tonnage and upwards, accommodation spaces, service spaces and control
stations shall be provided with at least five portable fire-extinguishers.
Fire Protection of Cargo Ships
2.5
37
Fire Protection Arrangements in Machinery Spaces
2.5.1
2.5.1.1
Machinery Spaces Containing Oil-Fired Boilers or Oil Fuel Units
Fixed Total Flooding Fire-Extinguishing Systems
In cargo ships of 150 gross tonnage and upwards, machinery spaces of category A containing oil-fired
boilers or oil fuel units shall be provided with one of the following fixed total flooding fire-extinguishing
systems:
.1 a fixed carbon dioxide fire-extinguishing system complying with the requirements specified in
3.6.4;
.2 a fixed high-expansion foam fire-extinguishing system complying with the requirements
specified in 3.5.3;
.3 a fixed water-spraying fire-extinguishing system or equivalent high-pressure water-based
spraying fire-extinguishing system complying with the requirements specified in 3.4.4.
As an alternative, an equivalent gas fire-extinguishing system complying with the requirements of
3.7.1, or aerosol fire-extinguishing system, specified in 3.7.2, may be used.
If the machinery space and boiler room are not entirely separated by a steel partition or oil fuel can
drain from the boiler room into the machinery space, the machinery space and the boiler room shall be
considered as one compartment.
2.5.1.2
Portable Fire-Fighting Equipment
Each machinery space containing oil-fired boilers shall be provided with the following fire-fighting
equipment:
.1 in ships of 500 gross tonnage and upwards – with mobile foam-extinguisher of at least 135 l
capacity or equivalent 27, with hoses on reels suitable for reaching any part of the space. In the case
of domestic boilers of less than 175 kW, such foam-extinguisher is not required;
.2 in every ship – with at least two portable foam extinguishers – in each firing space and in each
space in which a part of the oil fuel installation is situated;
.3 in ships of 500 gross tonnage and upwards – with a portable foam applicator unit, complying
with the requirements of 5.1.3. The applicator may be located in the machinery space or at an
entrance, outside of the space;
.4 in ships of 500 gross tonnage and upwards – with 0.1 m3 capacity receptacle containing sand,
sawdust impregnated with soda or other equivalent dry material, located in the boiler firing space.
A scoop shall be provided at the receptacle. A portable 6 kg dry-powder fire-extinguisher may be
used as an alternative.
2.5.2
2.5.2.1
Machinery Spaces of Category A Containing Internal Combustion Engines
Fixed Total Flooding Fire-Extinguishing Systems
In ships of 150 gross tonnage and upwards, machinery spaces of category A containing internal
combustion engines shall be provided with a fixed total flooding fire-extinguishing system required in
2.5.1.1.
2.5.2.2
Portable Fire-Fighting Equipment
Each machinery space of category A containing internal combustion engines shall be provided with
the following portable fire-fighting equipment:
.1 in ships of 500 gross tonnage and upwards, a foam-type mobile fire-extinguisher of 45 l capacity
or equivalent 28, to enable foam or its equivalent to be directed on to any part of the fuel or
lubricating oil pressure system, gearing or other fire hazards. In cargo ships the extinguisher may
be arranged outside machinery space, near the entrance to the space;
27
28
Mobile 50 kg dry powder extinguisher and mobile 45 kg CO2 extinguisher are considered equivalent.
Mobile 25 kg dry powder extinguisher and mobile 20 kg CO2 extinguisher are considered equivalent.
38
Fire Protection
in every ship – with portable foam extinguishers so located that no point in the machinery space
is more than 10 m walking distance from an extinguisher and that there are at least two such
extinguishers in each such space;
.3 in ships of 500 gross tonnage and upwards, a portable foam applicator unit complying with the
requirements of 5.1.3. Such unit may be located inside the machinery space or outside the space,
at the entrance to the space.
Additionally, in ships of 500 gross tonnage and upwards, machinery spaces of category A shall be
provided with portable fire-extinguishers, arranged as follows:
.4 in engine control room – at least one fire-extinguisher; additional fire-extinguisher shall be
provided when main switchboards are arranged in the engine control room;
.5 in the vicinity of the main switchboards – two fire-extinguishers;
.6 in each enclosed workshop – at least one fire-extinguisher;
.7 in enclosed spaces with oil-fired inert gas generators – two fire-extinguishers.
.2
2.5.3
2.5.3.1
Machinery Spaces Containing Steam Turbines or Enclosed Steam Engines
Fixed Total Flooding Fire-Extinguishing Systems
For periodically unattended spaces, see 6.16.3.1.
2.5.3.2
Portable Fire-Fighting Equipment
Each machinery space containing steam turbines or enclosed steam engines shall be provided with the
following portable fire-fighting equipment:
.1 in ships of 500 gross tonnage and upwards, mobile foam-type fire-extinguishers of 45 l capacity or
equivalent, sufficient in number to enable foam or its equivalent to be directed onto any part of the
turbine or engine pressure lubrication system, onto any part of the casing enclosing pressurelubricated parts of the turbines, engines or associated gearing and any other fire hazards. Such
extinguishers need not be used if fire protection is provided in such spaces by a fixed fireextinguishing system, required in 2.5.1.1;
.2 in every ship – portable foam extinguishers so arranged that no point in the space is more than 10
m walking distance from an extinguisher and that there are at least two such extinguishers in each
such space.
2.5.4
Other Machinery Spaces
Any machinery space, other than that listed in 2.5.1, 2.5.2 and 2.5.3 (defined in 1.2.64) where fire
hazard exists, shall be provided with at least one portable fire-extinguisher or other fire-extinguishing
appliance.
2.5.5
Rooms Containing Fuel Oil Purifiers
2.5.5.1 A separate room containing fuel oil purifiers for heated fuel oil shall be provided with:
.1 independent mechanical ventilation, see 11.3.4, Part VI – Machinery Installations and
Refrigerating Plants;
.2 fire detection and fire alarm system, complying with the requirements specified in 4.1; and
.3 a fixed fire-extinguishing system capable of being activated from outside of the room. The
system shall operate independently of the machinery space total flooding fire-extinguishing
system, but may constitute its part.
2.5.5.2 Ventilation switching off and closing of ventilation openings in fuel oil purifiers room shall be
effected from a position close to the place from which the fire-extinguishing system is activated.
2.5.5.3 Where the oil fuel purifiers are not placed in a separate room, they shall be protected by a fixed
local application water-based fire-extinguishing system (see 2.5.8), capable of being activated
automatically or activated manually from the machinery control position or from other suitable location.
If automatic release is provided, additional manual release shall be arranged.
Fire Protection of Cargo Ships
2.5.5.4
2.5.6
39
Fuel oil purifiers room shall be provided with at least one portable fire-extinguisher.
Main and Auxiliary Internal Engines Silencers
2.5.6.1 It is recommended that for main and auxiliary internal combustion engines silencers, exhaust gas
boilers, exhaust pipes of steam boilers and incinerators, as well as gas turbine system regenerators, a local
carbon-dioxide fire-extinguishing system complying with the requirements of 3.6.6, independent of the
fixed total flooding fire-extinguishing system, required in 2.5.1.1, should be provided.
2.5.6.2 For crosshead type engines, scavenge spaces in open connection to the cylinder shall be
connected to an approved local CO2 fire-extinguishing system, specified in 3.6.6 or equivalent fireextinguishing system in accordance with the engine manufacturer’s requirements (see 2.1.6, Part VII –
Machinery, Boilers and Pressure Vessels). The local fire-extinguishing system shall be entirely separate
from the fire-extinguishing system of the engine room.
2.5.7
Fire Detection and Fire Alarm System
2.5.7.1 In ships of 500 gross tonnage and upwards, a fixed fire detection and fire alarm system with
detectors and manually operated call points, complying with the requirements of 6.16.2, shall be installed
in machinery spaces of category A:
.1 periodically unattended machinery spaces, see 6.16.2.1;
.2 machinery spaces where:
– the installation of automatic and remote control systems and equipment have been approved
in lieu of continuous manning of the space;
– the main propulsion and associated machinery, including the main sources of electrical
power, are provided with various degrees of automatic or remote control and are under
continuous manned supervision from the engine control room;
.3 enclosed spaces containing incinerators.
Machinery spaces other than machinery spaces of category A containing flammable materials / liquid
fuel in quantities constituting fire hazard, shall be fitted with fire detectors.
2.5.7.2 In cargo ships of less than 500 gross tonnage, all machinery spaces of category A shall be fitted
with fire detection and fire alarm system complying with the applicable requirements, specified in 6.16.2
– see 6.21.3.
2.5.7.3 Fire detection and alarm system with fire detectors shall be installed in the location where the
emergency generator set and the emergency switchboard, for use in port, are installed.
2.5.8
Fixed Local Application Fire-Extinguishing System
In cargo ships of 2000 gross tonnage and upwards, machinery spaces of category A above 500 m3 in
volume shall, in addition to the fixed total flooding fire-extinguishing system, required in 2.5.1.1, be
fitted with a fixed local application water-based fire-extinguishing system complying with the
requirements of 3.4.6 or equivalent local application fire-extinguishing system of an approved type.
2.5.9
Arrangements for Release of Smoke from Machinery Spaces
Machinery spaces of category A and, where deemed necessary, other machinery spaces shall be
provided with arrangements permitting the release of smoke, in the event of fire, in accordance with the
requirements specified in 11.3.7, Part VI – Machinery Installations and Refrigerating Plants.
2.5.10
Detection of Oil Mist in Machinery Spaces
It is recommended that machinery spaces of category A, in locations of potential oil/fuel leaks, should
be provided with atmospheric oil mist detectors, in accordance with MSC/Circ. 1086. Oil mist detection
system is subject to PRS’ approval.
2.6
Fire Protection Arrangements in Cargo Spaces
40
Fire Protection
2.6.1
Spaces for General and Bulk Cargoes
2.6.1.1 Except for ro-ro and vehicle spaces covered by other requirements, cargo spaces in cargo ships
of 2000 gross tonnage and upwards shall be protected by a fixed carbon dioxide fire-extinguishing
system complying with the requirements specified in 3.6.4 or an equivalent gas fire-extinguishing system
which gives equivalent protection.
2.6.1.2 Any cargo ship may be exempted by the Flag State Administration from the necessity of
installation in the cargo spaces of a fixed gas fire-extinguishing system, required in 2.6.1.1 and 2.6.2, if
the ship:
.1 is constructed, and solely intended, for the carriage of ore, coal, grain, unseasoned timber, noncombustible cargoes or cargoes which constitute a low fire risk; and
.2 is fitted with steel hatch covers and effective means of closing all ventilators and other openings
leading to the cargo spaces.
2.6.1.3 The list of solid bulk cargoes for which the ship may be exempted from providing cargo spaces
with a fixed gas fire-extinguishing system is given in Appendix to MSC.1/Circ.1395, Table 1.
Such cargoes also include non-combustible materials, listed in para.1 of Annex 2 to the FTP Code,
such as products made of glass, concrete, ceramic products, natural stone, masonry units, metals, etc.
2.6.2
Spaces for the Carriage of Dangerous Goods
2.6.2.1 In ships of 500 gross tonnage and upwards engaged in the carriage of dangerous goods on deck
or in cargo spaces, each cargo space shall be provided with a fixed carbon dioxide fire-extinguishing
system complying with the requirements of 3.6.4 or a gas fire-extinguishing system which gives
equivalent protection for the carried cargoes, see 2.10.1.4.
For the control of the self-heating of the cargoes, the fixed carbon dioxide or an equivalent inert gas
fire-extinguishing system required for the protection of the cargo space may be used. Fixed gas fireextinguishing systems or inert gas systems installed on board to protect spaces other than cargo spaces
cannot be used for this purpose. 29
2.6.2.2 In the case of solid dangerous bulk cargoes for which a gas fire-extinguishing system is
ineffective, a system which gives equivalent protection shall be provided. It may be a water-spraying
fire-extinguishing system complying with the requirements of 3.4, with the application rate of at least 5
l/min per square metre of the cargo hold area. The system may be supplied by its own pump or from the
water fire main, provided the requirements, specified in 2.10.3.2.3, regarding water supply are complied
with.
Water supplies (four jets of water), specified in 2.10.3.2, are considered as an acceptable protection
for cargoes for which a gas fire-extinguishing system is ineffective.
2.6.2.3 For the list of solid bulk cargoes, for which a gas fire-extinguishing system is ineffective and
for which a fire-extinguishing system giving equivalent protection shall be provided – see Annex to
MSC.1/Circ 1395, Table 2.
2.6.3
Vehicle Spaces
In cargo ships of 500 gross tonnage and upwards, vehicle space – see the definition given in 1.2.55 –
shall be protected in accordance with the requirements specified in 6.2.2.
29
For certain individual schedules of solid bulk cargoes subject to self-heating, specified in Appendix 1of the IMSBC
Code, such as: FISHMEAL (FISHSCRAP) STABILIZED UN 2216, SEED CAKE, containing vegetable oil UN 1386 and
SEED CAKE UN 2217, the following ventilation requirement applies: if the temperature of the cargo exceeds 55 oC and
continues to increase, this self-heating of the cargo shall be regarded as an emergency condition in which ventilation to the
cargo space shall be stopped and the fixed carbon dioxide or an equivalent inert gas fire-extinguishing system required for
the protection of the cargo space shall be used to control the self-heating of the cargo. Fixed gas fire-extinguishing systems
or inert gas systems installed on board to protect spaces other than cargo spaces cannot be used for this purpose.
Fire Protection of Cargo Ships
2.7
41
Fire Protection of Galley Spaces
2.7.1
Exhaust Ducts from Galley Ranges
2.7.1.1 In cargo ships of 500 gross tonnage and upwards, exhaust ducts from galley ranges passing
through accommodation spaces or spaces containing combustible materials shall be constructed of steel
having a thickness of 3 to 5 mm, depending on cross-sectional area and shall fulfil the applicable
requirements for ventilation ducts, specified in Chapter 11, Part VI – Machinery Installations and
Refrigerating Plants. Additionally, the exhaust duct shall be fitted with:
.1 a grease trap readily removable for cleaning;
.2 an automatically and remotely operated fire damper 30 located in the lower end of the duct at the
junction between the duct and the galley range hood; in addition, a remotely operated fire damper
shall also be provided in the upper end of the duct, near the duct outlet;
.3 fixed fire-extinguishing system for extinguishing fire within the duct. 31
2.7.1.2 Arrangements, operable from within the galley, for shutting off the exhaust and air supply fans
shall be provided.
2.7.1.3 The fire damper need not be subjected to fire test, but it shall be of steel and shall be capable of
stopping the air draught.
2.7.1.4 Galley exhaust duct passing through accommodation spaces or spaces containing combustible
materials shall be fitted with insulation of the same fire integrity as required for the galley space. If the galley
exhaust duct is contiguous to such spaces, the insulation shall be carried along the duct and for a distance of at
least 450 mm from the duct edge32.
2.7.2
Deep-Fat Cooking Equipment
Deep-fat cooking equipment, installed in closed spaces or open decks, shall be fitted with the
following:
.1 an automatic or manual fire-extinguishing system using fire-extinguishing agent suitable for
extinction of burning fat, subject to tests in accordance with ISO 15371: 2009;
.2 a primary and backup thermostat with an alarm to alert the operator in the event of failure of
either thermostat;
.3 arrangements for automatically shutting off the electrical power upon activation of the fireextinguishing system;
.4 an alarm for indicating operation of the fire-extinguishing system in the galley where the
equipment is installed; and
.5 controls for manual operation of the fire-extinguishing system, clearly labelled.
2.7.3
Portable Fire-Extinguishers
Galleys shall be provided with at least one Class B fire-extinguisher; one additional Class F or K fireextinguisher shall be provided for galleys fitted with deep-fat cooking equipment.
2.8
Fire Protection of Store-Rooms for Paints and Flammable Liquids
2.8.1 The store-rooms for paints and flammable liquids shall be located away of accommodation areas.
Exits from the store-rooms shall lead directly to the open deck.
30
31
32
The requirement regarding fitting the duct with automatically and remotely operated fire dampers applies to ships subject to
SOLAS Convention, constructed on or after 1 January 2016.
Refer to Publication ISO15371:2009 Ships and marine technology -- Fire-extinguishing systems for protection of galley
cooking equipment.
Examples of the ventilation duct insulation are given in MSC.1/Circ.1276, interpretations of SOLAS regulations II-2/9.7.2.1,
II-2/9.7.2.2 and II-2/9.7.5.2.1.
42
Fire Protection
In cargo ships of 500 gross tonnage and upwards, the store-rooms shall be provided with one of
the following fire-extinguishing systems:
.1 a carbon dioxide system, the quantity of CO2 being calculated in accordance with 3.6.4.1.1,
assuming filling factor ϕ = 0.4;
.2 a dry powder system designed for at least 0.5 kg powder/m3;
.3 a water-spraying fire-extinguishing system or sprinkler system, with the water discharge rate not
less than 5 l/min per square metre of the floor. This system may supplied from the water fire
main;
.4 a system providing equivalent protection.
In all cases, the fire-extinguishing system shall be operable from outside of the store-room.
Additionally, such store-rooms shall be provided with one portable fire-extinguisher.
2.8.2
2.8.3 For lockers of a deck area of less than 4 m2, which do not give access to accommodation spaces,
a portable carbon dioxide fire-extinguisher sized to provide the quantity of CO2 not less than that
calculated in accordance with 2.8.2.1 may be accepted in lieu of a fixed system. A discharge port shall be
arranged in the locker to allow the discharge of the extinguisher without having to enter into the
protected space. The required portable fire-extinguisher shall be stowed adjacent to the port.
Alternatively, a port or hose connection may be provided to facilitate the use of the water fire main.
2.9
Fire Protection of Spaces Intended for Garbage Storage and Processing
2.9.1 In ships of 2000 gross tonnage and upwards, spaces intended for the storage and processing of
garbage shall be fitted with water-spraying fire-extinguishing system in accordance with the requirements
of 3.4. The water-spraying system may be supplied from the water fire main or fresh water pressure tank
system.
If provision has been made for fitting an automatic sprinkler system on the ship, the spaces, referred
to above, may be protected by the sprinkler system.
2.9.2 In ships of 500 gross tonnage and upwards, incinerators rooms located outside machinery space
shall be fitted with fire detection and fire alarm system complying with the requirements specified in 4.1,
as well as one of the fire-extinguishing systems required for machinery spaces of category A, listed in
2.5.1.1.
2.9.3
2.10
2.10.1
Incinerators rooms shall be provided with at least one portable fire-extinguisher.
Additional Requirements for Ships Carrying Dangerous Goods
General Requirements
2.10.1.1 Ships engaged in the carriage of dangerous goods – dangerous goods classes, see the
definitions given in 2.10.1.9 – shall also fulfil the relevant requirements of this sub-chapter and the
provisions of the IMDG Code or the IMSBC Code, as amended.
2.10.1.2 Compliance with these requirements is confirmed by Certificate of Compliance for Ships
Carrying Dangerous Goods issued to a ship after satisfactory completion of ship survey, in accordance
with Annex 1, MSC.1/Circ. 1266.
2.10.1.3 The requirements of the present sub-chapter are not applicable to the carriage of dangerous
goods in limited quantities as specified for the relevant goods class concerned in Chapters 3.4 and 3.5 of
the IMDG Code.
2.10.1.4 In ships of 500 gross tonnage and upwards, engaged in the carriage of dangerous goods on deck
or in cargo spaces, each cargo space shall be fitted with a fixed gas fire-extinguishing system – see
2.6.2.1.
Fire Protection of Cargo Ships
43
2.10.1.5 Cargo ships of less than 500 gross tonnage shall fulfil the requirements of the present subchapter, but, subject to PRS’ acceptance, the requirements may be reduced and such reduced
requirements shall be recorded in the Appendix to Document of Compliance.
2.10.1.6 Ships engaged in the carriage of dangerous goods shall be additionally provided with three
hoses and nozzles, located on the open deck.
2.10.1.7 When dangerous goods are carried on the weather deck, in open ro-ro spaces and vehicle
spaces, two portable fire-extinguishers, each having a capacity of not less than 6 kg of dry powder or
equivalent, located in the vicinity of the cargoes shall be additionally provided.
2.10.1.8 To verify whether the ship construction and equipment intended for the carriage of declared
dangerous goods comply with the requirements specified in the present sub-chapter, the following
technical documentation shall be submitted for approval:
.1 water fire main system (including the calculations of the required capacities and the arrangement
of fire hydrants);
.2 water spraying fire-extinguishing/ water flooding system for cargo space;
.3 electrical equipment and wiring in cargo spaces (details of electrical components
installation/certificates for use in dangerous zones);
.4 fire detection and fire alarm system;
.5 ventilation system;
.6 bilge system;
.7 structure of divisions separating cargo spaces from machinery space of category A;
.8 arrangement plan of fire-fighting equipment/fire-control plan.
2.10.1.9 For the purpose of the present sub-chapter, dangerous goods have been divided into classes
and groups in accordance with the IMDG Code and the IMSBC Code. The following definitions of
dangerous goods classes and groups apply:
CARRIAGE OF DANGEROUS CARGOES IN PACKED FORM
Division into classes:
Class 1 – explosive materials
Class 1 comprises:
.1 explosive substances (a substance which is not itself an explosive but which can form an
explosive atmosphere of gas, vapour or dust is not included in class 1), except those which are
too dangerous to transport or those where the predominant hazard is one appropriate to another
class;
.2 explosive articles, except devices containing explosive substances in such quantity or of such a
character that their inadvertent or accidental ignition or initiation during transport shall not cause
any effect external to the device either by projection, fire, smoke, heat or loud noise;
.3 substances and articles not mentioned under .1 and .2 which are manufactured with a view to
producing a practical, explosive or pyrotechnic effect.
Transport of explosive substances which are unduly sensitive, or so reactive as to be subject to
spontaneous reaction, is prohibited.
Division 1.1: substances and articles which have a mass explosion hazard. A mass explosion is one
which affects almost the entire load virtually instantaneously.
Division 1.2: substances and articles which have a projection hazard but not a mass explosion hazard.
Division 1.3: substances and articles which have a fire hazard and either a minor blast hazard or a minor
projection hazard or both, but not a mass explosion hazard.
Division 1.4: substances and articles which present no significant hazard.
Division 1.5: very insensitive substances which have a mass explosion hazard.
Division 1.6: extremely insensitive articles which do not have a mass explosion hazard.
44
Fire Protection
Subdivision 1.4 S in compatibility group S:
Substances and articles so packaged or designed that any hazardous effects arising from the accidental
functioning are confined within the package unless the package has been degraded by fire, in which case
all blast or projection effects are limited to the extent that they do not significantly hinder fire fighting or
other emergency response efforts in the immediate vicinity of the package.
Class 2 – gases
Class 2.1: flammable gases
Class 2.1: flammable non-toxic gases
Class 2.2: non-flammable, non-toxic gases
Class 2.3: toxic gases
Class 2.3: flammable toxic gases
Class 2.3: non-flammable toxic gases
Class 3 – flammable liquids
Class 3 FP < 23oC: flammable liquids with a flash-point less than 23 oC (closed-cup test)
Class 3 23oC ≤FP ≤ 60oC: flammable liquids with a flash-point of 23 oC or above and less than or equal
to 60oC (closed-cup test)
Class 3 – liquid desensitized explosives
Class 4 – flammable solids; substances liable to spontaneous combustion; substances which, in
contact with water, emit flammable gases
Class 4.1: flammable solids, self-reactive substances and solid desensitized explosives
Solids which, under conditions encountered in transport, are readily combustible or may cause or contribute
to fire through friction; self-reactive substances (solids and liquids) which are liable to undergo a strongly
exothermic reaction; solid desensitized explosives which may explode if not diluted sufficiently.
Class 4.2: substances liable to spontaneous combustion
Substances (solids and liquids) which are liable to spontaneous heating under normal conditions
encountered in transport, or to heating up in contact with air, and being then liable to catch fire.
Class 4.3: substances which, in contact with water, emit flammable gases liquids
Substances (solids and liquids) which, by interaction with water, are liable to become spontaneously
flammable or to give off flammable gases in dangerous quantities.
Class 4.3 liquids
Liquids which, in contact with water, emit flammable gases.
Class 4.3 solids
Solids which, in contact with water, emit flammable gases.
Class 5 – oxidizing substances and organic peroxides
Class 5.1: oxidizing substances
Substances which, while in themselves not necessarily combustible, may, generally by yielding oxygen,
cause, or contribute to, the combustion of other material. Such substance may be contained in an article.
Class 5.2: organic peroxides
Organic substances which contain the bivalent -O-O- structure and may be considered derivatives of
hydrogen peroxide, where one or both of the hydrogen atoms have been replaced by organic radicals.
Organic peroxides are thermally unstable substances which may undergo exothermic self-accelerating
decomposition. In addition, they may have one or more of the following properties:
– be liable to explosive decomposition,
– burn rapidly,
– be sensitive to impact or friction,
– react dangerously with other substances,
– cause damage to the eyes .
Fire Protection of Cargo Ships
45
Class 6 – toxic and infectious substances
Class 6.1: Toxic substances
These are substances liable either to cause death or serious injury or to harm human health if swallowed
or inhaled, or by skin contact.
Class 6.1 FP < 23oC: toxic substances with a flash-point less than 23 oC
Class 6.1 23oC ≤FP ≤ 60oC: toxic substances with a flash-point of 23 oC or above and less than or equal
to 60oC
Class 6.1 liquids: toxic liquids with a flash-point greater than 60 oC
Class 6.1: toxic solids
Class 6.2: infectious substances
These are substances known or reasonably expected to contain pathogens. Pathogens are defined as
micro-organisms (including bacteria, viruses, rickettsiae, parasites, fungi) and other agents such as
prions, which can cause disease in humans or animals.
Class 7 – radioactive materials
Radioactive material means any material containing radionuclides where both the activity concentration
and the total activity in the consignment exceed the values specified in the IMDG Code.
Class 8 – corrosive substances
Substances which, by chemical action, will cause severe damage when in contact with living tissue or, in
the case of leakage, will materially damage, or even destroy, other goods or the means of transport.
Class 8 liquids FP < 23oC: corrosive liquids with a flash-point less than 23 oC
Class 8 liquids 23oC ≤FP ≤ 60oC: corrosive liquids with a flash-point of 23 oC or above and less than or
equal to 60oC
Class 8 liquids: corrosive liquids with a flash-point greater than 60 oC
Class 8 solids: corrosive solids
Class 9 – miscellaneous dangerous substances and articles
Dangerous substances and articles are substances and articles which, during transport, present a danger
not covered by other classes.
CARRIAGE OF SOLID DANGEROUS GOODS IN BULK
Division into groups:
Group A – cargoes which may liquefy when the actual moisture is higher than the cargoes transported
moisture limit.
Group B – cargoes which possess a chemical hazard which could give rise to a dangerous situation on a
ship.
Group C – cargoes which are not liable to liquefy (Group A) and do not possess chemical hazards
(Group B).
Division into classes:
Class 4.1: flammable solids
The materials in this class are readily combustible solids and solids which may cause fire through
friction.
Class 4.2: substances liable to spontaneous combustion
The materials in this class are materials, other than pyrophoric materials, which, in contact with air
without energy supply, are liable to self-heating.
Class 4.3: substances which, in contact with water, emit flammable gases
The materials in this class are solids which, by interaction with water, are liable to become spontaneously
flammable or to give off flammable gases in dangerous quantities.
46
Fire Protection
Class 5.1: oxidizing substances
The materials in this class are materials while in themselves not necessarily combustible, may, generally,
by yielding oxygen cause, or contribute to, the combustion of other material.
Class 6.1: toxic substances
The materials in this class are materials liable either to cause death or serious injury or to harm human
health if swallowed or inhaled, or by skin contact.
Class 8: corrosive substances
The materials in this class are materials which, by chemical action, will cause severe damage when in
contact with living tissue or will materially damage, or even destroy, other goods or the means of
transport.
Class 9: miscellaneous dangerous substances and articles
The materials in this class are materials and articles which, during transport, present a danger not covered
by other classes.
Class MHB: materials hazardous only in bulk
These are materials which may possess chemical hazards when transported in bulk other than materials
that are classified in the IMDG Code as dangerous cargoes.
2.10.2
Requirements with Respect to Class of the Carried Dangerous Goods
2.10.2.1 Unless expressly provided otherwise, the requirements specified in sub-chapter 2.10 are
applicable to dangerous goods carried both in cargo spaces and on the open deck.
2.10.2.2 Tables 2.10-1 and 2.10-2 contain requirements specified in sub-chapters 2.10.3 and 2.10.12,
which are applicable to the following ship types and cargo spaces:
.1 ships and cargo spaces not specifically designed for the carriage of freight containers but
intended for the carriage of dangerous goods in packaged form, including goods in freight
containers and portable tanks;
.2 container ships and cargo spaces intended for the carriage of dangerous goods in freight
containers and portable tanks 33;
.3 ro-ro ships and ro-ro cargo spaces, special category spaces and vehicle deck spaces intended for
the carriage of dangerous goods;
.4 ships and cargo spaces intended for the carriage of solid dangerous goods in bulk;
.5 ships and cargo spaces intended for the carriage of dangerous goods other than liquids and gases
in bulk (in shipborne barges).
2.10.2.3 Table 2.10-2 contains the requirements, specified in 2.10.3 to 2.10.10, with respect to
particular classes of solid dangerous goods carried in bulk.
2.10.2.4 Tables 2.10-1, 2.10-2 and 2.10-3 contain the requirements, specified in Chapters 2.10.3 to
2.10.12, with respect to particular classes of dangerous goods carried in packed form.
2.10.3
2.10.3.1
Supply of Water from the Water Fire Main System
Availability of Water Supply
Arrangements shall be made to ensure immediate availability of water supply from the water fire
main at the required pressure by permanent pressurization and automatic start of a fire pump or by
remote starting of the fire pump from the navigation bridge.
2.10.3.2
Water Supply Quantity and the Arrangement of Fire Hydrants
2.10.3.2.1 The quantity of water delivered shall be sufficient to supply four nozzles of a size and at
pressures as specified in 3.2. This amount of water may be supplied by equivalent means in accordance
with PRS requirements.
33
A purpose-built container space is a cargo space fitted with cell guides for the stowage and securing of containers.
47
Fire Protection of Cargo Ships
2.10.3.2.2 The number and position of hydrants shall be such that any part of the empty cargo spaces
can be reached with four jets of water not emanating from the same hydrant. Two of the jets shall be
supplied by a single length of hose each, two may be supplied by two coupled hose lengths each. All four
jets of water, each supplied by a single length of hose, shall reach any part of ro-ro spaces.
2.10.3.2.3 On open-top container ships, the water spraying fire-extinguishing system complying with
the requirements specified in 3.4.8, shall also satisfy the requirement for the carriage of dangerous goods.
The amount of water required for fire-fighting purposes in the largest hold shall allow for
simultaneous use of the water spray system plus four jets of water from hose nozzles.
Table 2.10-1
Application of the requirements to different modes of carriage
of dangerous goods in ships and cargo spaces
X
X
X
X
2.10.3.2
X
X
X
X
X
2.10.3.3
–
X
X
X
X
2.10.3.4
–
X
X
X
X
2.10.4
–
X
X
X
X
2.10.5
–
X
X
X
–
2.10.6.1
–
X
X1
X
–
2.10.6.2
–
X
X1
X
–
2.10.7
–
X
X
X
–
2.10.8.1
X
X
X
X
X
2.10.8.2
X
X
X
X
X
2.10.9
X
X
–
–
X
X
X
3
X
2.10.10
X
X
X
2
Open ro-ro spaces
2.10.11
–
–
–
X
2.10.12.1
–
–
–
X
–
2.10.12.2
–
–
–
X
–
.5
Shipborne barges
X
.4
X
For application of requirements of sub-chapter 2.10 to different
classes of dangerous goods, see Table 2.10-2
2.10.3.1
Sub-chapter
∗
Closed ro-ro spaces 5
.3
Container cargo spaces
.2
Not specially designed
.1
Weather decks of ships listed in
1. to 5.
Paragraph 2.10.2.2
Solid dangerous goods in
bulk
Where X appears in the Table, it means that this requirement is applicable to all classes of dangerous goods as given in
the appropriate line of Table 2.10-3, except as indicated by the Notes to the Table.
–
X
X
X4
X4
X4
X4
–
–
–
–
–
–
–
–
Notes:
1
2
3
∗
For classes 4 and 5.1 not applicable to closed freight containers. For classes 2, 3, 6.1 and 8, where carried in closed freight
containers, the ventilation rate may be reduced to not less than two air changes per hour. For classes 4 and 5.1 liquids where
carried in closed freight containers, the ventilation rate may be reduced to not less than two air changes per hour. For the
purpose of this requirement, a portable tank is a closed freight container.
Applicable to decks only.
Applies only to closed ro-ro spaces, not capable of being sealed.
A ro-ro space fully open above and with full openings in both ends may be treated as a weather deck.
48
4
5
Fire Protection
Where the barges are capable of containing flammable vapours or alternatively if they are capable of discharging flammable
gases to a safe space outside the barge carrier compartment by means of ventilation ducts connected to the barges, these
requirements may be reduced or waived to the satisfaction of PRS.
Special category spaces shall be considered as closed ro-ro spaces when dangerous goods are carried.
Table 2.10-2
Application of the requirements to different classes of dangerous goods for ships and cargo
spaces carrying solid dangerous goods in bulk
Class
4.1
4.2
4.36
5.1
6.1
8
9
2.10.3.1
X
X
–
X
–
–
X
2.10.3.2
X
X
–
X
–
–
X
2.10.4
X
X
7
X
8
X
–
–
X8
2.10.6.1
–
X7
Sub-chapter
X
–
–
–
–
2.10.6.2
X
9
7
X
X
7,9
–
–
X7,9
2.10.6.3
X
X
X
X
X
X
X
2.10.8
X
X
X
X
X
X
X
X
7
–
–
X10
2.10.10
X
X
X
X
Notes:
6
The hazards of substances in this class which may be carried in bulk are such that special consideration must be given to the
construction and equipment of the ship involved in addition to meeting the requirements enumerated in this Table.
7
Only applicable to Seedcake containing solvent extractions, to Ammonium nitrate and to Ammonium nitrate fertilizers.
8
Only applicable to Ammonium nitrate and to Ammonium nitrate fertilizers. However, a degree of protection in accordance
with standards specified in IEC Publication 60079 – Electrical Apparatus for Explosive Gas Atmospheres, is sufficient.
9
Only suitable wire mesh guards are required.
10
The requirements of the IMSBC Code are sufficient.
49
Fire Protection of Cargo Ships
Table 2.10-3
Application of the requirements to different classes of dangerous goods except solid dangerous goods in bulk
1.1 to 1.6
1.4 S
2.1
2.2
2.3 flammable 20
2.3 non-flammable
3 FP15 < 23 °C
3 FP15≥23 °C to≤ 60 °C
4.1
4.2
4.3 liquids 21
4.3 solids
5.1
5.2 16
6.1 liquids FP15< 23 °C
6.1 liquids FP15≥23 °C
to ≤ 60 °C
6.1 liquids
6.1 solids
8 liquids FP15 <23 °C
8 liquids FP15 ≥23 °C
to ≤ 60 °C
8 liquids
8 solids
9
Class
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2.10.3.1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2.10.3.2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
–
2.10.3.3
X
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2.10.3.4
X
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
X
–
–
–
X
–
–
–
X17
Sub
-chapter
1
2.10.4
X
–
X
–
X
–
X
–
2.10.5
X
X
X
X
–
X
X
X
X
X
X
X
X
–
X
X
X
X
X
X
X
X
–
2.10.6.1
–
–
X
–
–
X
X
–
X11
X11
X
X
X11
–
X
X
–
X11
X
X
–
–
X11
2.10.6.2
–
–
X
–
–
–
X
–
–
–
–
–
–
–
X
–
–
–
X
–
–
–
X17
2.10.7
–
–
–
–
–
–
X
–
–
–
–
–
–
–
X
X
X
–
X
X19
X19
–
–
2.10.8
–
–
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X14
2.10.9
–
–
–
–
–
–
X
X
X
X
X
X
X
–
X
X
–
–
X
X
–
–
–
X
X
X
–
–
X
X
–
–
–
2.10.10
X
12
–
–
X
18
–
X
X
X
X
X
X
X
X
X
X
X
13
2.10.11
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2.10.12.1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
2.10.12.2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
50
Fire Protection
Notes to the Table 2.10-3:
11
When mechanically ventilated spaces are required by the IMDG Code.
12
Stow 3 m horizontally away from the machinery space boundaries in all cases.
13
Refer to the IMDG Code.
14
As appropriate to the goods being carried.
15
FP is a flash point.
16
Under the provisions of the IMDG Code, stowage of Class 5.2 dangerous goods under deck or in
enclosed ro-ro spaces is prohibited.
17
Only applicable to dangerous goods evolving flammable vapour, listed in the IMDG Code.
18
Only applicable to dangerous goods having a flash point below 23 oC, listed in the IMDG Code.
19
Only applicable to dangerous goods having a subsidiary risk class 6.1.
20
Under the provisions of the IMDG Code, stowage of class 2.3 liquids having a subsidiary risk class 2.1 under deck or in
enclosed ro-ro spaces is prohibited.
21
Under the provisions of the IMDG Code, stowage of class 4.3 liquids having a flash point below 23oC under deck or in
enclosed ro-ro spaces is prohibited.
2.10.3.3
Cooling the Designated Cargo Space
2.10.3.3.1 Means shall be provided for effectively water cooling the designated under-deck space with
intensity of not less than 5 l/min per square metre of the horizontal area of cargo spaces, either by a fixed
arrangement of spraying nozzles or by flooding the cargo space with water.
The water may be supplied by means of the main fire pumps. The required water shall be distributed
evenly over the cargo space area from above via a fixed piping system and full bore nozzles. The piping
and nozzle system may be divided into sections and be integrated into the hatch covers. Connection may
be via hoses with quick-acting couplings. Additional hydrants shall be provided on deck for this purpose.
2.10.3.3.2 Hoses may be used for this purpose in small cargo spaces and in small areas of larger cargo
spaces at the discretion of PRS.
2.10.3.3.3 The drainage and pumping arrangements shall be such as to prevent the build-up of free
surfaces. The drainage system :
.1 shall be seized to remove not less than 125% of the combined capacity of both the water spraying
pumps and the required number of fire hose nozzles;
.2 the drainage system valves shall be operable from outside the protected space at a position in the
vicinity of the fire-extinguishing system controls;
.3 bilge wells shall be of sufficient holding capacity and shall be arranged at the side shell of the
ship at a distance from each other of not more than 40 m in each watertight compartment.
If this is not possible, the adverse effect upon stability of the added weight and free surface of water
shall be taken into account and calculations shall be submitted to demonstrate that after flooding the
cargo space the ship will fulfil the requirements of Part IV – Stability and Subdivision.
2.10.3.3.4 The total required capacity of the water supply shall fulfil the requirements specified in
2.10.3.2 and 2.10.3.3, if applicable, simultaneously calculated for the largest designated cargo space.
The capacity requirements, specified in 2.10.3.2., shall be met by the total capacity of the main fire
pump(s), not including the capacity of the emergency fire pump, if fitted. If water-spraying fireextinguishing system is used to satisfy the requirements of 2.10.3.3, the spraying system pump shall also
be taken into account in this total capacity calculations.
2.10.3.4
Cooling the Cargo Space with Other Suitable Medium
In lieu of spraying or flooding a designated under deck space, provision to flood the space with
suitable specified medium, 34 may be made.
2.10.4
Sources of Ignition
2.10.4.1 Electrical equipment and wiring shall not be fitted in enclosed cargo spaces, as well as in
closed and open ro-ro spaces unless it is essential for operational purposes.
34
A fixed high expansion foam system, complying with the requirements of 3.5.3, is acceptable, except if cargoes dangerously
react with water (see the IMDG Code).
Fire Protection of Cargo Ships
51
2.10.4.2 However, if electrical equipment is fitted in such spaces, it shall be of a certified safe type for
use in the dangerous environments to which it may be exposed, 35 unless it is possible to completely
isolate the electrical system (e.g. by removal of links in the system, other than fuses).
2.10.4.3 Cable penetrations of the decks and bulkheads shall be sealed against the passage of gas or
vapours. Through runs of cables and cables within the cargo spaces shall be protected against damage
from impact.
2.10.4.4 Any other equipment which may constitute a source of ignition of flammable vapours are not
permitted.
2.10.5
Fire Detection and Fire Alarm System
2.10.5.1 Ro-ro spaces shall be fitted with a fixed fire detection and fire alarm system complying with
the requirements of 4.1. All other types of cargo spaces shall be fitted with either a fixed fire detection
and fire alarm system or a sample extraction smoke detection system in accordance with the
requirements of 4.1 or 4.2. If a sample extraction smoke detection system is fitted, means shall be
provided to prevent the leakage of toxic fumes and flammable gases into adjacent occupied areas.
2.10.5.2 If a cargo space or the weather deck is intended for the carriage of class 1 goods, it is
recommended to monitor adjacent cargo spaces, with the exception of open ro-ro spaces, by a fixed fire
detection and fire alarm system or a sample extraction smoke detection system, complying with the
requirements specified in 4.1 or 4.2.
2.10.6
2.10.6.1
Ventilation
Mechanical Ventilation (six air exchanges per hour)
2.10.6.1.1 Enclosed cargo spaces 36 shall be provided with adequate power ventilation. The ventilation
shall provide for at least six air changes per hour in the cargo space, based on empty cargo space and for
removal of gases and vapours from the upper or lower parts of the cargo space, as appropriate.
2.10.6.1.2 The requirement concerning the removal of gases and vapours from the upper and lower
part of the cargo hold is considered to be met if the ducting is arranged such that approximately 1/3 of the
air volume is removed from the upper part and 2/3 from the lower part. The position of air inlets and air
outlets shall be such as to prevent short circuiting of the air. Interconnection of the hold atmosphere with
other spaces is not permitted.
In cargo spaces intended for the carriage of solid dangerous cargoes in bulk, the ducting shall be so
arranged that the space above the cargo can be ventilated and that exchange of air from outside to inside
the entire cargo space is provided.
2.10.6.1.3 For open top container ships, mechanical ventilation is required only for the lower part of
the cargo hold (for which purpose ducting is required). The ventilation capacity shall be at least 2 air
changes per hour based on the empty hold volume below weather deck.
2.10.6.1.4 Where continuous ventilation is required, fixed ventilator(s) shall be fitted. Portable
ventilators are permitted, provided they are permanently fixed during loading and voyage.
In the case of the carriage of cargoes which require continuous ventilation 37, it is not prohibited to use
ventilators fitted with a means of closure required for fire protection purposes, provided the minimum
35
36
37
The electrical equipment shall comply with the requirements of Publication IEC 60092, Part 506.
If adjacent spaces are not separated from cargo spaces by gastight bulkheads or decks, then they are considered as part of the
enclosed cargo space and the ventilation requirements that apply to the adjacent space shall be the same as those applicable
to the enclosed cargo space itself.
Under the IMSBC Code, continuous ventilation is required in cargo spaces carrying the following solid cargoes in bulk:
ALUMINIUM FERROSILICON POWDER UN 1395;
ALUMINIUM SILICON POWDER, UNCOATED UN 1398;
ALUMINIUM SMELTING BY-PRODUCTS or ALUMINIUM REMELTING BY-PRODUCTS UN 3170;
FERROPHOSPHORUS (including BRIQUETTES);
52
Fire Protection
height to the ventilator opening is in accordance with the International Convention on Load Lines
(ICLL), reg.19.3.
2.10.6.1.5 Where the IMSBC Code requires 2 fans per hold, a common ventilation system with 2 fans
connected is acceptable.
2.10.6.2
Non-Sparking Fans
2.10.6.2.1 The fans shall be such as to avoid the possibility of ignition of flammable gas/air mixtures.
Exhaust fans shall be of non-sparking type and shall fulfil the requirements specified in sub-chapter
5.3.2, Part VII – Machinery, Boilers and Pressure Vessels.
2.10.6.2.2 Suitable wire mesh guards shall be provided over inlet and outlet openings to prevent
foreign objects from entering into the fan casing. The standard wire mesh guards shall have the size of 13
mm x 13 mm.
2.10.6.2.3 The air outlets shall be situated at a safe distance from possible ignition sources. A spherical
radius of 3 m around the air outlets, within which ignition sources are prohibited, is required.
2.10.6.3
Natural Ventilation (Carriage of Solid Dangerous Goods in Bulk)
Natural ventilation, with ventilator closures, shall be provided in enclosed cargo spaces intended for
the carriage of solid dangerous goods in bulk, where there is no provision for mechanical ventilation.
2.10.7
Bilge Pumping
2.10.7.1 Where it is intended to carry flammable or toxic gases in enclosed spaces, the bilge pumping
shall be so designed as to protect against inadvertent pumping of such liquids through machinery spaces
piping or pumps. Where large quantities of such liquids are carried, additional means of draining those
spaces shall be provided.
Bilge systems for cargo holds on container ships shall be independent of the machinery space bilge
system. The system bilge pump shall be located outside the machinery space.
2.10.7.2 If the bilge drainage system is additional to the system served by pumps in the machinery
space, the capacity of the system shall not be not less than 10 m3/h per cargo space served. If the
additional system is common and serves more than 2 cargo spaces, the capacity need not exceed 25 m3/h.
The additional bilge system need not be arranged with redundancy.
The additional bilge system shall enable any leaked flammable or toxic liquids to be removed from all
bilge wells in the cargo space.
Pumps and pipelines serving the system shall not be installed in machinery spaces.
Where water-driven ejectors are installed, they shall be equipped, on the suction side, with non-return
valves.
2.10.7.3 The bilge pipeline into the machinery space shall be isolated either by fitting a blank flange or
by a closed lockable valve. The isolating valve shall be situated outside the machinery space, at the point
of exit from the machinery space close to the bulkhead.
Warning sign shall be displayed at the isolating valve or control positions, bearing the inscription: THIS
VALVE SHALL BE KEPT SECURED IN CLOSED POSITION DURING THE CARRIAGE OF
DANGEROUS GOODS IN CARGO HOLD NO. ……..
2.10.7.4 Enclosed spaces outside machinery spaces 38 containing bilge pumps serving cargo spaces
intended for the carriage of flammable or toxic liquids shall be fitted with separate mechanical
38
FERROSILICON (25% ≤ Silicon ≤ 30% or ≥ 90% Silicon);
FERROSILICON UN 1408 (30% ≤ Silicon < 90%);
ZINK ASHES UN 1435.
Electrical equipment in such space shall comply with IEC Publication 60092 and the requirements of Part VIII – Electrical
Installations and Control Systems.
Fire Protection of Cargo Ships
53
ventilation giving at least six air changes per hour. If the space has access from another enclosed space
the door shall be self-closing.
2.10.7.5 If bilge draining of cargo spaces is arranged by gravity drainage, the drainage shall be either
led directly overboard or to a closed drain tank located outside the machinery spaces. The tank shall be
provided with a vent pipe to a safe location on the open deck .
Drainage from a cargo space into bilge wells in a lower space is only permitted if that space satisfies
the same requirements as the cargo space above.
2.10.8
Personnel Protection
2.10.8.1 The ship shall be provided with four sets of chemical protective clothing, in addition to the
required fire-fighter’s outfits. The chemical protective clothing shall cover all skin so that no part of the
body is unprotected.
The chemical protective clothing is intended for emergency purposes only.
The chemical protective clothing shall be selected taking account of the hazards related to the carried
cargoes (chemicals) and IMO-developed standards for the particular classes of cargo and physical
condition.
For solid bulk cargoes, the protective clothing shall satisfy the equipment provisions specified in the
respective schedules of the IMSBC Code for individual substances.
For packaged goods, the protective clothing shall satisfy the equipment provisions specified in
emergency procedures (EmS) of the Supplement to the IMDG Code for individual substances.
2.10.8.2 The ship shall be provided with at least two additional self-contained breathing apparatus in
accordance with the requirements specified in 5.1.4.
For each of the breathing apparatus, two complete sets of air bottles shall be provided. These spare
bottles shall be provided in addition to the spare bottles required for fireman’s outfit. Ships equipped with
means for fully recharging the air cylinders free from contamination need carry only one spare charge for
each required apparatus.
2.10.9
Portable Fire-Extinguishers
The cargo spaces shall be provided with portable fire-extinguishers with a total capacity of at least 12
kg of dry powder or equivalent (e.g. two 6 kg dry powder extinguishers), located at the entrance to these
spaces. These extinguishers shall be in addition to any portable fire-extinguishers required by the Rules.
2.10.10
Insulation of Machinery Space Boundaries
2.10.10.1 Bulkheads forming boundaries between cargo spaces (conventional cargo spaces) and
machinery spaces of category A shall also be insulated to A-60 Class standard, unless the dangerous
goods are stowed at least 3 m horizontally away from such bulkheads. Other boundaries (e.g. decks)
between such spaces shall be insulated to A-60 Class standard.
2.10.10.2 In the case that a closed or semi-closed cargo space is located partly above a machinery
space and the deck above the machinery space is not insulated to A-60 Class standard, dangerous goods
are prohibited in the whole of that cargo space. If the deck above the machinery space is a weather deck,
not insulated to A-60 Class standard, dangerous goods are prohibited only for the portion of the deck
located above the machinery space.
2.10.11
Water-Spraying System in Ro-Ro Spaces
2.10.11.1 Each open ro-ro space having a deck above it and each space deemed to be a closed ro-ro
space not capable of being sealed shall be fitted with a fixed pressure water-spraying system, complying
with the requirements specified in 3.4.2 or equivalent high pressure water-based fire-extinguishing
system, referred to in 3.4.3. The system shall be manually operated and shall protect all parts of any deck
and vehicle platform in the space.
54
Fire Protection
2.10.11.2 To prevent the build-up of free surfaces, the drainage system shall be fitted in accordance with
the requirements specified in 2.10.3.3.3.
2.10.12
Separation of Ro-Ro Spaces
2.10.12.1 In ships having ro-ro spaces, a separation shall be provided between a closed ro-ro space
and an adjacent open ro-ro space. The separation shall be such as to minimize the passage of dangerous
vapours and liquids between such spaces. Such separation need not be provided if the ro-ro space is
considered to be a closed cargo space over its entire length.
2.10.12.2 In ships having ro-ro spaces, a separation shall be provided between a closed ro-ro space
and the adjacent weather deck. The separation shall be such as to minimize the passage of dangerous
vapours and liquids between such spaces. A separation need not be provided if the arrangements of the
closed ro-ro spaces are in accordance with those required for the dangerous goods carried on adjacent
weather decks.
Fire-Extinguishing System and Inert Gas System
3
55
FIRE-EXTINGUISHING SYSTEMS AND INERT GAS SYSTEMS
Fire-extinguishing systems are intended for the extinction of fire inside the ship spaces or on the open
deck.
Inert gas systems are intended for rendering and maintaining atmosphere in cargo tanks and hull
spaces in tankers.
3.1
General Requirements
3.1.1 Fire-extinguishing systems and inert gas systems shall be so constructed as to be efficient and
readily available for operation under all conditions specified in sub-chapter 1.6, Part VI – Machinery
Installations and Refrigerating Plants.
3.1.2 Fire-extinguishing medium storage vessels and cylinders used in fire-extinguishing systems and
inert gas systems shall fulfil the requirements of national/international standards applicable in
shipbuilding, as well as applicable requirements for pressure vessels and air receivers, specified in
Chapter 12, Part VII – Machinery, Boilers and Pressure Vessels.
3.1.3 Pumps other than those serving the water fire main system necessary for the supply of water to
fire-extinguishing systems for the protection of the ship’s spaces, required by the present Part of the
Rules, their sources of power and their controls shall be installed outside the spaces protected by such
systems and shall be so arranged that a fire in the spaces will not put any such system out of action.
3.1.4 The use of fire-extinguishing media, which, either by themselves or under expected conditions of
use, emit toxic gases in such quantities as to endanger persons, is not permitted.
3.1.5 In fire-extinguishing systems and in inert gas systems, metal pipes of the minimum melting
temperature appropriate for the given extinguishing system, shall be used. Steel pipes, except stainless
steel pipes, shall be protected against corrosion; it is recommended that steel pipes should be hotgalvanized both inside and outside.
3.1.6 Plastic pipes are allowed for the following fire-extinguishing systems:
– water fire main systems,
– water-spraying systems,
– foam systems,
– sprinkler systems
used in ship spaces/areas if they were subjected to fire tests in accordance with Publication No. 53/P
(Res. A.753(18) and Res. 313(88), having due regard to their location, as specified in Table 4.1.3 of the
said Publication.
3.1.7 Fire-extinguishing systems and inert gas systems pipes shall fulfil the requirements specified in
sub-chapter 1.16, Part VI – Machinery Installations and Refrigerating Plants, as follows:
– materials for pipes – the requirements of sub-chapter 1.16.2;
– pipe wall thickness – the requirements of sub-chapter 1.16.3;
– pipe connections – the requirements of sub-chapter 1.16.4;
– pipe bends radius – the requirements of sub-chapter 1.16.5;
– protection against corrosion – the requirements of sub-chapter 1.16.7;
– pipes insulation – the requirements of sub-chapter 1.16.8;
– pipes passage and penetrations – the requirements of sub-chapter 1.16.11;
– flexible hose assemblies and compensators – the requirements of sub-chapter 1.16.12.
3.1.8 Continuously pressurized pipelines installed outside ship spaces or in non-heated spaces shall be so
designed or protected as to preclude their freezing in ship operation areas where low temperatures may exist.
3.2
Water Fire Main System
All self-propelled ships shall be provided with water fire main system complying with the
requirements of the present sub-chapter.
56
Fire Protection
3.2.1
Number, Capacity and Discharge Pressure of Fire Pumps
3.2.1.1 For ships other than passenger ships, the number of the main fire pumps and the minimum pressure
of water supplied simultaneously by all the pumps and the two required nozzles at the discharge rate
determined in 3.2.1.5, at any hydrant, shall comply with the values given in Table 3.2.1.1. For passenger ships
– see 6.1.16.2.
3.2.1.2 The maximum pressure at any hydrant shall not exceed that at which the effective control of a
fire hose by one person is possible. This shall be checked during the acceptance of the system on board.
Table 3.2.1.1
Ships other than passenger ships,
gross tonnage
*
Number of fire pumps
Minimum pressure at hydrants
[MPa]
< 500
1
(plus portable pump, required
for cargo ships)
*
500 ≤ gross tonnage < 6000
2
0.25
≥ 6000
2
0.27
In ships of 150 gross tonnage and upwards, the pressure of the fire pump shall be sufficient to ensure delivering, through fire
hose nozzles adopted on the ship, a jet of water of at least 12 m throw length; in ships of less than 150 gross tonnage – the
length of the water jet may be appropriately less.
3.2.1.3 Every cargo ship of 500 gross tonnage and upwards shall be additionally fitted with an
emergency fire pump in accordance with the requirements of 3.2.4.
3.2.1.4 Unless the two main fire pumps, their sea valves and their sources of power are situated within
compartments separated by at least A-0 Class divisions so that a fire in any one compartment will not
render both fire pumps inoperable, an emergency fire pump should be fitted. In such case one of the fire
pumps shall fulfil the requirements for the emergency fire pump, specified in 3.2.4.
An arrangement in which one main fire pump is located within a compartment having more than one
bulkhead or deck adjacent to the compartment containing the other main fire pump also requires an
emergency fire pump.
3.2.1.5 On cargo ships, the total capacity of the main fire pumps (excluding the emergency fire pump),
with a pressure not lower than that specified in Table 3.2.1.1, shall not be less than four-thirds of the
capacity of each required bilge pump, specified in paragraph 6.1.3, Part VI – Machinery Installations
and Refrigerating Plants.
In ships other than containerships intended for carriage of containers in 5 and more tiers on weather
deck, provided with mobile water monitors 39 as specified in 6.8.3.2, the total capacity of the main fire
pumps need not exceed 180 m3/h, unless a larger capacity is required in order to ensure the simultaneous
operation of other fire-extinguishing systems supplied by the pumps.
3.2.1.6 In every ship which is required to be provided with more than one fire pump, each of the
required fire pumps, other than the emergency pump, shall have a capacity not less than 80% of the total
required capacity divided by the minimum number of the required fire pumps but in any case not less
than 25 m3/h. Each such pump shall be capable of supplying at least two jets of water – see the
assumptions for capacity calculations given in 3.2.4.2.2. These fire pumps shall be capable of supplying
the fire main system under the required conditions.
Where more than the minimum of the required pumps are installed, such additional pumps shall have
a capacity of at least 25 m3/h and shall be capable of delivering at least two jets of water.
39
Mobile water monitors will be required onboard ships constructed on or after 1 January 2016.
Fire-Extinguishing System and Inert Gas System
57
3.2.1.7 Where other fire-extinguishing systems using water from fire pumps are provided in the ship, the
capacity of such pumps shall be sufficient for the operation of the water fire main system with at least 50%
of capacity determined in 3.2.1.5 and for simultaneous operation of one of the other systems which requires
the largest quantity of water. In cargo ships, the capacity of fire pump required for simultaneous provision
of water for other fire-extinguishing systems shall be sufficient for delivering at least 2 jets of water through
nozzles of the largest size used in the ship.
3.2.1.8 The location of each main and emergency fire pumps shall be indicated by a plate with the
symbol used on Fire Control Plan.
3.2.2
Ready Availability of Water Supply
3.2.2.1 In cargo ships of gross tonnage 500 and upwards, provision shall be made for a remote starting of
one of the fire pumps from the fire control station, located outside the machinery space or from control
station. In the pump remote starting position, a gauge indicating water pressure or another indicator (e.g. an
electric lamp) shall be provided to indicate the pump operation.
The location of remote control of the fire pump shall be indicated by a plate with the symbol used on
Fire Control Plan.
The remote starting arrangement of the pumps need not be provided in the case of permanently
pressurized water fire main system with automatic starting of the pump.
Ships with periodically unattended machinery space and where only one person is required on watch
shall fulfil the requirements specified in 6.16.1.
3.2.2.2 For dry pipe (not filled with water) water fire main systems, the time from starting the pump till
the moment the water is supplied to the remotest fire hydrant located within accommodation area shall not
exceed 1 min. For fire hydrants located in cargo area, this period of time may be appropriately longer. The
above shall be checked during the acceptance of the water fire main system on board.
3.2.3
Requirements for Fire Pumps
3.2.3.1 Fire pumps shall be independently driven. In ships of less than 1000 gross tonnage, one of the
required fire pumps may be driven from the main engine.
3.2.3.2 Fire pumps may be used for other shipboard services if the ship is provided with at least two
independently driven fire pumps, one of which is all the time kept readily available for water supply to
the water fire main system.
3.2.3.3 Sanitary, ballast, bilge or general service pumps may be accepted as main fire pumps, provided that
their capacity and pressure head comply with the requirements for fire pumps and that such pumps are not
used for pumping liquid fuel or oil.
3.2.3.4 On cargo ships, in which ballast, bilge or general service pumps are installed in machinery
spaces, it is additionally required for at least one such pump with at least 25 m3/h capacity and the water
pressure specified in 3.2.1.1 to be capable of supplying sea water to the water fire main system.
However, it is not required to choose pumps with capacity and pressure characteristics other than
being optimal for the service intended just to make connection to the fire main possible, provided the
required number and capacity of fire pumps are ensured.
3.2.3.5 Each electrically driven fire pump shall be provided with the pump start button, located in an
easily accessible position. Location of the button shall be indicated by a plate with the symbol used on Fire
Control Plan. Overload protection of electric drives shall fulfil the requirements specified in 8.3.3, Part
VIII – Electrical Installations and Control Systems.
3.2.3.6 Pumps which are capable of developing a pressure exceeding the design pressure shall be
provided with relief valves. Those valves shall be so situated and adjusted as to prevent excessive
pressure in any part of the system.
58
Fire Protection
3.2.3.7 Fire pumps and their sea valves shall be located below the ship summer load waterline to
ensure water suction under all trim, roll and heeling conditions. If such arrangement is not practicable,
the pumps shall be self-priming.
3.2.3.8
chests.
At least one of the fire pumps located in the machinery space shall be supplied from two sea
3.2.3.9 Fire pumps installed outside the machinery space shall have sea valves in each compartment in
which they are situated.
3.2.3.10
Fire pumps and their prime movers shall not be installed forward of the collision bulkhead.
3.2.3.11 Each fire pump shall be provided with shut-off valves on the suction and discharge side, as
well as a pressure gauge. In the case of centrifugal fire pumps, non-return valves, preventing water
backflow, shall be fitted on the discharge side.
3.2.3.12 The sea valves, as well as shut-off valves shall be provided with a plate bearing the
inscription: THE VALVE SHALL BE ALWAYS KEPT OPEN.
3.2.4
3.2.4.1
Fixed Emergency Fire Pump
General Requirements
3.2.4.1.1 The emergency fire pump shall be a fixed independently driven pump, powered by diesel
engine or an electric motor supplied from an emergency source of power.
3.2.4.1.2 The emergency fire pump, its sea valve, suction and delivery pipes and isolating valves shall
be located outside the machinery space, in which the main fire pumps and/or sources of power are
located.
If this arrangement is impossible, the sea valve may be fitted in the machinery space, provided the
valve is remotely controlled from a position in the same compartment in which the emergency pump is
located and the suction pipe is as short as practicable.
3.2.4.1.3 Short lengths of suction and discharge pipes of the emergency fire pump may penetrate the
above-mentioned machinery space, provided they are enclosed in a substantial steel casing or are
insulated to A-60 Class standard. The pipes shall have substantial wall thickness, but in no case less than
11 mm and shall be welded, except for the flanged connection to the sea inlet valve.
3.2.4.1.4 In the case where suction or discharge pipes penetrating machinery spaces are enclosed in a
substantial casing, or are insulated to A-60 class standard, it is not necessary to enclose or insulate
distance pieces, sea inlet valves and sea chests. For this purpose, the discharge piping means piping
between the emergency fire pump and the isolating valve. The method for insulating pipes to A-60 Class
standard is that they shall be covered/protected in a practical manner by insulation material which is
approved as a part of A-60 Class divisions in accordance with the FTP Code.
3.2.4.1.5 Where the sea inlet valve is in the machinery space, the valve should not be a fail-close type.
Where the sea inlet valve is in the machinery space and is not a fail-open type, measures shall be taken so
that the valve can be opened in the event of fire, e.g. control piping, actuating devices and/or electric
cables with fire-resistant protection equivalent to A-60 Class standard.
3.2.4.1.6 Where the main fire pumps are provided in compartments outside machinery spaces and the
emergency fire pump suction or discharge piping penetrates such compartments, the piping shall fulfil
the requirements specified in 3.2.4.1.3 and 3.2.4.1.4.
3.2.4.1.7 Where the emergency fire pump is driven by electric engine, the electrical cables to this pump
shall not pass through the machinery spaces containing the main fire pumps and/or their sources of
power, as well as through other spaces or areas of high fire risk.
Fire-Extinguishing System and Inert Gas System
59
Where the ship arrangements are such that the cables have to pass through these spaces, the cables
shall be of a fire-resistant type in accordance with the requirements of 16.1.3, Part VIII – Electrical
Installations and Control Systems and shall be properly protected against mechanical damage, e.g. they
shall run in thick-walled pipe.
3.2.4.1.8 Control post of the emergency fire pump shall be located outside the main fire pumps space,
in close vicinity to the pump, as well as in the place of the pump sea valve control if the valve is
controlled from outside the emergency fire pump-room.
The location of a remote starting of the emergency fire pump shall be indicated by a plate with the
symbol used on Fire Control Plan.
3.2.4.2
Capacity and Discharge Pressure of the Emergency Fire Pump
3.2.4.2.1 The capacity of the emergency fire pump shall not be less than 40% of fire pumps capacity
required in 3.2.1.5 and in no case less than:
.1 25 m3/h – for cargo ships of 2000 gross tonnage and upwards;
.2 15 m3/h – for cargo ships of less than 2000 gross tonnage.
When the pump is delivering the quantity of water required above, the pressure at any hydrants shall not
be less than that specified in 3.2.1.1.
On cargo ships of 500 gross tonnage and upwards, engaged on international voyages, the pressure
shall not be less than 0.27 MPa.
3.2.4.2.2 Where a fixed water-spraying fire-extinguishing system or water-based fire-extinguishing
system installed for the protection of the machinery space of category A, required in 2.5.1.1, is supplied
by the emergency fire pump, then the emergency fire pump capacity shall be sufficient to supply the
fixed fire-extinguishing system at the required pressure plus two jets of water. The capacity of the two
jets shall in any case be calculated as not less than 25 m3/h, at the assumption that both jets are supplied
by nozzles of the maximum diameter 40.
It is assumed that the capacity of a single jet at the hydrant pressure of 0.27 MPa is 16 m3/h – for the
nozzle diameter 16 mm, and 23.5 m3/h – for the nozzle diameter 19 mm.
3.2.4.2.3 The emergency fire pump, after being installed onboard, shall be subject to operation test by
checking the pressure and the actual capacity and when the pump is intended for supplying fixed waterspraying fire-extinguishing system, by checking that the pump has the capacity required for this system.
3.2.4.3
Sea Inlet Valve and the Emergency Fire Pump Suction Height
3.2.4.3.1
The sea inlet valve for the pump shall be installed below the summer load waterline so that
the pump will be capable of pumping under all conditions of list, trim, roll and pitch likely to be
encountered in service.
3.2.4.3.2 Where necessary to ensure suction, the emergency fire pump shall be of self-priming type.
The total suction head and the net positive suction head of the pump shall be such as to ensure the
required pump capacity and the hydrants pressure under all conditions of list, trim, roll and pitch to be
encountered in service. The ballast condition of a ship on entering or leaving a dry dock need not be
considered as service condition.
3.2.4.3.3 It shall be indicated, in classification documentation, that the emergency fire pump suction
inlet is fully submerged under all conditions of list, trim, roll and pitch likely to be encountered in
service, in accordance with MSC.1/Circ. 1388.
3.2.4.3.4
follows:
40
Operational sea-going conditions for which roll, pitch and heave shall be applied are as
When selecting the biggest nozzle size available onboard, the nozzles located in the space containing fire pumps need not be
taken into account.
60
Fire Protection
.1
.2
.3
the lightest sea-going condition shall be considered, which is defined as the ballast condition
which gives the shallowest draught at the position of the sea chest and emergency fire pump as
given in the approved stability booklet (or preliminary stability calculation for new building);
for the calculation of roll, pitch and heave, the table contained in MSC.1/Circ.1388, shall
be applied;
the heave combined with pitch and heave combined with roll shall be considered
separately.
3.2.4.3.5 The emergency fire pump suction shall be submerged at the waterlines corresponding to the
two following conditions:
.1 a static waterline drawn through the level of 2/3 immersion of the propeller at even keel (pod or
thruster driven ships shall be considered separately); and
.2 the ship in the arrival ballast condition, in accordance with the approved trim and stability
booklet, without cargo and with 10% stores and fuel remaining.
For either condition, roll, pitch and heave need not be applied.
3.2.4.3.6 Restricted service ships (ships operating solely in sheltered waters) shall fulfil the still water
submergence requirement specified in 3.2.4.3.5.1.
3.2.4.3.7 In all cases, the net positive suction head (NPSH) available for the pump shall be greater than
that required in this sub-chapter.
3.2.4.3.8 Upon completion of the emergency fire pump installation, a performance test shall be
performed to confirm the pump capacity, which is to be not less than that required in 3.2.4.2.1. If the
emergency fire pump is the main supply of water for any fixed fire-extinguishing system provided to
protect the space where the main fire pump is located, the pump shall have the capacity for this system.
As far as practicable, the test shall be performed at the draught corresponding to the lightest sea-going
condition.
3.2.4.4
Emergency Fire Pump Space
3.2.4.4.1 The space containing the emergency fire pump shall not be contiguous to the boundaries of
machinery spaces of category A or those spaces containing main fire pumps. Where this is not
practicable, the common bulkhead between the two spaces shall have the fire integrity as specified in
2.2.2 for a control station.
When a single access to the emergency fire pump room is through another space adjoining a
machinery space of category A or the spaces containing the main fire pumps, A-60 Class boundary is
required between that other space and the machinery space of category A or the spaces containing the
main fire pumps.
3.2.4.4.2 No direct access is permitted between the machinery space of category A or machinery space
containing the main fire pumps and the space containing the emergency fire pump and its source of
power. When this is not practicable, an arrangement where the access is by means of an airlock with the
door of the machinery space being of A-60 Class standard and the other door being steel, gastight, selfclosing and without any hold-back arrangements, may be permitted.
Alternatively, the access may be through a watertight door capable of being remotely operated from a
readily accessible position outside the machinery space and the space containing the emergency fire
pump and unlikely to be cut off in the event of fire in those spaces.
In such cases, a second means of access to the space containing the emergency fire pump and its
source of power (e.g. through a manhole and ladder) shall be provided.
3.2.4.4.3 The room(s) where the pump and prime mover are installed should have adequate space for
maintenance work and inspections.
3.2.4.4.4 The room, referred to above, shall be provided with lighting, supplied from the emergency
source of electric power.
Fire-Extinguishing System and Inert Gas System
61
3.2.4.4.5 The room containing the emergency fire pump and its sources of power shall be well
ventilated. If mechanical ventilation, necessary for diesel engine operation, has been provided, it shall be
supplied from the emergency source of electric power.
3.2.4.4.6 Ventilation arrangements to the space containing the independent source of power for the
emergency fire pump shall be such as to preclude, as far as practicable, the possibility of smoke from the
machinery space fire entering or being drawn into that space.
3.2.4.5
Diesel Engine and Fuel Tank for Emergency Fire Pump
3.2.4.5.1 The emergency fire pump shall be driven by a diesel engine only. The engine shall be capable
of being readily started in its cold condition down to the temperature of 0 °C by hand (manual) cranking.
Where ready starting cannot be assured, if this is impracticable, or if lower temperatures are likely to
occur, and if the room for the diesel-driven power source is not heated, electric heating of the diesel
engine cooling water or lubricating oil system shall be fitted. If hand (manual) starting is impracticable,
compressed air, electricity, or other sources of stored energy, including hydraulic power or starting
cartridges are permitted to be used as a means of starting.
The means shall be such as to enable the diesel-driven power source to be started at least six times
within a period of 30 minutes and a least twice within the first 10 minutes.
3.2.4.5.2 A service fuel tank of the volume sufficient to ensure at least 3-hours operation of the pump on
full load shall be installed in the space containing the emergency fire pump. The fuel reserve sufficient to
ensure an additional 15-hours operation of the pump shall be provided outside the machinery space of
category A.
3.2.4.5.3
tank.
3.2.5
The minimum level/ the required minimum volume of fuel shall be marked on the service fuel
Water Fire Main Pipings
3.2.5.1 The diameter of the water fire main system pipes shall be sufficient for the effective
distribution of the maximum required discharge from two fire pumps operating simultaneously. In the
case of cargo ships, other than containerships intended for the carriage of containers in 5 or more tiers on
weather deck, provided with mobile water monitors 41, as specified in 6.8.3.2, the diameter need only be
sufficient for the discharge of 140 m3/hour.
For cargo ships of 500 gross tonnage and upwards, the water fire main system pipes shall be
calculated for a working pressure not less than 1.0 MPa.
3.2.5.2 The pipelines and fire hydrants shall be so designed and arranged as to preclude their freezing
in ships entering areas where low temperatures may exist. It applies, in particular, to continuously
pressurized pipelines.
For continuously pressurized pipelines where fire hydrants are located on open decks, it is
recommended that supply pipes installed in interior locations should be fitted with shut-off valves,
remotely controlled from a position near the hydrant. The pipeline section from a shut-off valve to the
hydrant, subjected to freezing, shall be drained by means of a drain plug. The fire hydrant and the drain
plug shall be provided with a plate informing on the necessity of draining this pipe section after it has
been used.
3.2.5.3 The whole section of the fire main within machinery space of category A containing the main
fire pump(s) shall be separated by isolating valves from the rest of the fire main. The isolating valves
shall be installed in an easily accessible position outside the machinery space. The fire main shall be so
arranged that when the isolating valves are shut, all the hydrants on the ship, except those in the
machinery space, referred to above, can be supplied with water by another pump or the emergency fire
pump.
41
Mobile water monitors will be required onboard ships constructed on or after 1 January 2016.
62
Fire Protection
Each section of water fire installation pipings installed within machinery space of category A shall be
additionally equipped with the isolating valve located outside the space.
This requirement is not applicable to the piping supplied by fire pumps located in spaces other than
machinery spaces of category A.
The location of each isolating valve separating the section of the fire main shall be indicated by a plate
with the symbol used on Fire Control Plan.
3.2.5.4 Materials made readily rendered ineffective by heat shall not be used for fire mains and
hydrants unless adequately protected.
3.2.5.5 Fire main pipelines shall be capable of being drained through drain plugs fitted in the lowest
section of the system.
3.2.5.6 Each open deck fire main branch used for the purpose other than fire-fighting shall be fitted
with an isolating valve. This valve shall be remotely controlled from the open deck.
3.2.6
Fire Hydrants
3.2.6.1 Each fire hydrant shall be fitted with a coupling complying with national standards and a shutoff valve so that any fire hose may be connected and removed while the pump is in operation.
Fire hydrant couplings, installed on open decks, shall be provided with easily removable caps.
3.2.6.2
Fire hydrants shall be so positioned that they allow easy and rapid connection of fire hoses.
3.2.6.3 The number and position of hydrants shall be such that at least two jets of water not emanating from
the same hydrant, one of which shall be from a single length of hose, may reach any part of the ship normally
accessible to the passengers or crew while the ship is being navigated and any part of any cargo space when
empty, any ro-ro space or any special category space in which latter case the two jets of water shall reach any
part of the space, each from a single length of hose. For ro-ro spaces and vehicle spaces – the requirements are
specified in 6.2.2.3.
Fire hydrants shall be positioned near the accesses to the protected spaces.
The location of each fire hydrant shall be indicated by a plate with the symbol used on Fire Control
Plan.
3.2.6.4 In ships where deck cargo may be carried, the positions of the hydrants shall be such that they
are always readily accessible and the pipes are arranged as far as practicable to avoid risk of damage by
such cargo.
3.2.6.5 In machinery spaces of category A, there shall be at least two fire hydrants with fire hose and
nozzle located on either side of the ship. In small machinery spaces, only one fire hydrant is permitted.
In cargo ships of less than 500 gross tonnage where the machinery space of category A cannot afford
the connection and use of fire hose inside the space, the fire hydrant, together with fire hose and nozzle
may be located outside the machinery space, close to the entrance to this space.
3.2.6.6
Fire hydrants shall be made from material resistant to the corrosive effect of sea water.
3.2.6.7
Fire hydrants shall be painted red.
3.2.7
Fire Hoses
3.2.7.1 Fire hoses shall be of non-perishable material and shall be sufficient in length to project a jet of
water to any of the spaces in which they may be required to be used. Each fire hose shall be provided
with a nozzle and the necessary couplings allowing quick connection.
Fire hose couplings shall be made from material resistant to the corrosive effect of sea water.
Fire hoses shall be made in accordance with EN 694:2001. They are subject to tests in accordance
with PN-EN 14540 + A1.
Fire-Extinguishing System and Inert Gas System
63
3.2.7.2 Fire hoses, together with nozzles and any necessary fittings and tools, shall be stowed in hose
boxes, located in conspicuous positions near the water service hydrants or connections.
Within accommodation spaces, fire hoses shall be stowed in boxes, on reels and shall be permanently
connected to fire hydrants.
Fire hoses boxes shall be indicated by a plate with the symbol used on Fire Control Plan.
3.2.7.3 Fire hoses shall have a length of at least 10 m, but not more than:
.1 15 m in machinery spaces;
.2 20 m in superstructure spaces and on open decks;
.3 25 m on open decks in ships with a maximum breadth in excess of 30 m.
In ships of less than 500 gross tonnage, the length of fire hose shall not exceed:
.4 10 m in machinery spaces;
.5 18 m in superstructure spaces and on open decks.
3.2.7.4 Unless one fire hose and nozzle is provided for each fire hydrant in the ship, there shall be
complete interchangeability of hose couplings and nozzles.
3.2.7.5 In cargo ships of 1000 gross tonnage and upwards, the number of fire hoses to be provided
shall be one for each 30 m length of the ship and a spare one, but in no case less than five in total. This
number does not include fire hoses required in machinery spaces and boiler rooms.
3.2.7.6 In cargo ships of less than 1000 gross tonnage, the number of fire hoses to be provided shall be
calculated in accordance with 3.2.7.5; the number of fire hoses shall in no case be less than three.
3.2.7.7 In every cargo ship, the number of fire hoses shall not be less than the number of provided fire
hydrants.
3.2.8
Fire Hose Nozzles
3.2.8.1 Fire hose nozzles shall be made from material resistant to the corrosive effect of sea water. Fire
hose nozzles made of plastic material, e.g. polycarbonate, are considered acceptable, provided the
nozzles capacity and serviceability, as well as their suitability for the marine environment are confirmed
by tests.
3.2.8.2 Standard nozzle sizes 12 mm, 16 mm or 19 mm or as near thereto as possible shall be used on
ships. Where other fire-extinguishing systems are used – such as fog fire-extinguishing systems – different
diameter nozzles may be permitted.
3.2.8.3
For accommodation and service spaces, a nozzle size greater than 12 mm need not be used.
3.2.8.4 For machinery spaces and open decks, the nozzle size shall be such as to obtain the maximum
discharge possible from two jets of water at the pressure specified in Table 3.2.1.1 from the smallest
pump, provided that a nozzle size greater than 19 mm need not be used.
3.2.8.5 All fire hose nozzles shall be of approved dual-purpose type, i.e. of spray/jet type incorporating
a shutoff.
3.2.9
International Shore Connection
3.2.9.1 In ships of gross tonnage 2000 and above, the fire main system shall have a branch led to the
open deck in way of superstructure. The branch shall be fitted with a permanent shore connection for the
water supply. The shore connection shall be fitted with a shut-off valve, as well as steel coupling for the
international shore connection in accordance with the requirements specified in Table 2.1 of the FSS Code.
The shut-off valve is not required if the shore connection is closed with a blind flange fitted with butterfly
screws (not requiring a wrench to remove the flange).
3.2.9.2
Facilities shall be available enabling such pipe connection to be used on either side of the ship.
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Fire Protection
3.2.9.3 All ships of 500 gross tonnage and upwards and passenger ships engaged on international
voyages shall be provided with a portable international shore connection complying with the
requirements specified in Chapter 2 of the FSS Code.
3.2.9.4
Facilities shall be available enabling such shore connection to be used on each side of the ship.
3.2.9.5 The portable international shore connection shall be kept in a fire store-room. The location of
international shore connection shall be indicated by a plate with the symbol used on Fire Control Plan.
3.3
Automatic Sprinkler System (for the Protection of Accommodation Spaces, Service Spaces
and Control Stations)
3.3.1
General Requirements
3.3.1.1 An automatic sprinkler system shall be fitted with sea water pump, a pressure tank with an
arrangement, control panels with alarm system, pipelines grouped in sections with section valves
supplying water to spaces and the sprinklers. The sprinkler system shall be automatically set in operation
at the temperature in the protected space rise to the value given in 3.3.7.2.
3.3.1.2 The system pipings shall always be filled with fresh water, but small exposed sections may be
of the dry type 42 where this is a necessary precaution.
Saunas and refrigerated provision chambers shall be fitted with dry pipe sprinkler systems.
In control stations, where water may cause damage to essential, for the safety of the ship, equipment,
dry pipe systems or pre-action systems – the systems with a supplemental fire detection system
(containing air or nitrogen under pressure) are permitted to be used.
3.3.1.3 Any part of the system which may be subjected to freezing temperatures in service shall be
properly protected against freezing.
3.3.1.4 Automatic sprinkler system shall be capable of immediate operation at all times and no action
of the crew shall be necessary to set it in operation.
3.3.1.5 The sprinkler system shall be kept charged at the necessary pressure and shall have provision
for a continuous supply of water.
3.3.1.6 Spaces/group of spaces protected by automatic sprinkler system shall be indicated by a plate, placed
on access door, with the symbol used on Fire Control Plan.
3.3.2
Sources of Power Supply
3.3.2.1 There shall be at least two sources of power supply for the sea water pump and alarm system. If
the pump is electrically driven, it shall be connected to the main electric switchboard. The switchboard
shall be capable of being supplied by at least two generators.
3.3.2.2 The power supply lines shall be so arranged as to avoid galleys, machinery spaces and other
enclosed spaces of high fire risk, except in so far as it is necessary to reach the appropriate switchboards.
3.3.2.3 One of the sources of power supply for the alarm system shall be an emergency source of
electric power.
3.3.2.4 Where one of the sources of power for the sea water pump is an internal combustion engine, it
shall, in addition to compliance with the requirements of 3.3.4.5, be so situated that a fire in any
protected space will not affect the air supply to the engine.
42
Dry-type pipes - dry pipe system in the sprinkler system employing automatic sprinklers attached to a piping system
containing air or nitrogen under pressure, the release of which (as from opening a sprinkler) permits the water pressure to
open a valve known as a dry pipe valve. The water flows into the piping system and out of the opened sprinklers.
Fire-Extinguishing System and Inert Gas System
3.3.3
65
Pressure Tank
3.3.3.1 Fresh water pressure tank shall be fitted with:
.1 fresh water supply pipeline;
.2 automatic pressure maintaining device;
.3 water level indicating device and alarms warning of the water level and pressure drop in the tank
below the minimum values;
.4 safety valve;
.5 pressure gauge, connected through a stop valve or cock.
3.3.3.2 The tank capacity shall be equal to at least twice the above required quantity of fresh water in
the pressure tank.
The quantity of fresh water in the pressure tank shall be equal to the quantity of sea water delivered
by the sea water pump in one minute, calculated for the area of at least 280 m2 at the application rate
specified in 3.3.7.1.
3.3.3.3 Provision shall be made for maintaining such air pressure in the tank that after the consumption
of the whole quantity of fresh water it will be not lower than the working pressure of the sprinklers plus
hydrostatic pressure from the tank bottom to the highest sprinkler.
3.3.3.4 Arrangements for replenishing compressed air and fresh water in the pressure tank, as well as
non-return valves precluding the ingress of sea water into the tank shall be provided.
3.3.3.5 The pressure tank shall fulfil the requirements for pressure vessels, set out in Chapter 12, Part
VII – Machinery, Boilers and Pressure Vessels.
3.3.4
Sea Water Pump
3.3.4.1 An independent power sea water pump shall be provided for the purpose of maintaining
continuous discharge of water from the sprinklers. The pump shall be brought into action automatically
by the pressure drop in the system before the standing fresh water charge in the pressure tank is
completely exhausted.
3.3.4.2 The pump and the piping system shall be capable of maintaining the necessary pressure at the
level of the highest sprinkler to ensure a continuous output of water sufficient for the simultaneous
coverage of a minimum area of 280 m2 at the application rate specified in 3.3.7.1.
Hydraulic calculations shall be made to confirm that the water flow and pressure will be sufficient to
cover the most unfavourably located section (the greatest flow resistance).
3.3.4.3 The pump shall have fitted on the delivery side a test valve with a short open-ended discharge
pipe. The effective cross-sectional area of the valve and pipe shall be sufficient to permit the release of
the required pump output while maintaining the pressure in the system specified in 3.3.3.3.
3.3.4.4 Means shall be provided for testing the automatic operation of the pump on reduction of
pressure in the system.
3.3.4.5 The sea water pump and the pressure tank shall be situated outside protected spaces, in a position
reasonably remote from machinery spaces of category A.
The space containing the sea water pump and the pressure tank shall be indicated by a plate, placed on
the entrance door to the space, with the symbol used on Fire Control Plan.
3.3.5
Piping Arrangements
3.3.5.1 Sprinklers shall be grouped into separate sections, each of which shall not contain more than
200 sprinklers.
3.3.5.2 Each section of sprinklers shall be capable of being isolated by one stop valve only, fitted on
the supply pipe. The stop valve in each section (section valve) shall be readily accessible in a location
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Fire Protection
outside of the associated section or in cabinets within stairway enclosures. A locking arrangement shall
be provided to protect the section valves against access thereto by any unauthorized person.
The location of the valves shall be indicated by a plate with the symbol used on Fire Control Plan.
3.3.5.3 A test valve shall be provided for testing the automatic alarm for each section of sprinklers by a
discharge of water equivalent to the operation of one sprinkler. The test valve for each section shall be
situated near the stop valve of that section.
3.3.5.4 Automatic sprinkler system shall have a connection from the ship’s fire main by way of a nonreturn valve fitted with interlocking arrangement.
3.3.5.5 A gauge indicating the pressure in the system shall be provided at each section valve and at the
control station.
3.3.5.6 The sea inlet valve shall be in the space containing the pump and shall be so arranged that
when the ship is afloat it will not be necessary to shut off the supply of sea water to the pump for any
purpose other than the inspection or repair of the pump.
3.3.5.7 The suction pipes of sea water pump supplying the sprinkler system shall be fitted with filters
to prevent the sprinklers against getting clogged.
3.3.5.8 Provision shall be made in each section for blowing the pipes with compressed air and flushing
them with fresh water.
3.3.6
Control Panels and Alarm Signaling
3.3.6.1 Each section of sprinklers shall be provided with water flow sensor for giving a visual and
audible alarm signal at one or more control panels, whenever any sprinkler comes into operation. The
alarm system shall be such as to indicate any fault occurring in the sprinkler system.
3.3.6.2 Control panels shall show in which section, served by the system, fire has occurred and shall be
centralized on the navigation bridge or a continuously manned central control station. In addition, visible
and audible alarms from the control panel shall also be placed in a position other than on the aforementioned spaces to ensure that the indication of fire is immediately received by the crew.
3.3.6.3 Switches shall be provided at one of the control panels, which enable the alarm and the
indicators for each section of sprinklers to be tested.
3.3.6.4 A scheme or plan shall be located at each control panel showing the space protected by
automatic sprinkler system and the location of the fire zone in respect of each section.
3.3.6.5 Suitable instructions for testing and maintenance of automatic sprinkler system shall be
available on board the ship.
3.3.7
Sprinklers
3.3.7.1 Sprinklers shall be situated in an overhead position and spaced in a suitable pattern to maintain an
average application rate of not less than 5 l/m2 /min over the nominal area covered by the sprinklers. The
nominal area is defined as being the gross horizontal projection of the area to be covered.
The use of sprinklers providing a lower average application rate may be permitted subject to
submission of test results confirming that such sprinklers are not less effective.
Sprinklers shall be situated as clear as possible of beams or other objects likely to obstruct the
projections of water and in such positions that combustible materials in the space will be well sprayed.
3.3.7.2 In accommodation and service spaces, the sprinklers shall come into operation within the
temperature range from 68 °C ÷ 79 °C, except that in locations such as drying rooms and galleys, where
high ambient temperatures might be expected, the operating temperature may be increased by not more
than 30 °C above the normal deckhead temperature.
Fire-Extinguishing System and Inert Gas System
67
3.3.7.3 The sprinklers shall be resistant to corrosion by marine atmosphere. Sprinklers are subject to
type tests in accordance with ISO 6182-1 or PN-EN 12259-1 standards, or in accordance with the
guidelines specified in Annex 1 to Res. A.800(19), as amended by Res. MSC.265 (84).
3.3.7.4 The total number of spare sprinklers for all types of sprinklers installed on board, related to the
total number of sprinklers, shall be as follows:
Total number of sprinklers
Required number of spare sprinklers
< 300
6
300 ÷ 1000
12
> 1000
24
The ship shall be provided with at least 6 spare sprinklers for each section.
For each type of sprinkler, the number of spare sprinklers need not exceed the total number of
installed sprinklers.
3.3.8
Equivalent High-Pressure Sprinkler System (Water Mist System)
3.3.8.1 Guidelines for the design, assembly and type approval tests of equivalent high-pressure
sprinkler system are specified in Publication No. 89/P.
3.3.8.2 The system shall be designed, assembled and type tested in accordance with Res. A.800(19), as
amended by Res. MSC.265(84).
3.3.8.3 Type approval tests of equivalent high-pressure sprinkler systems performed in accordance
with the guidelines, specified in Res. A.800(19), remain valid until 1 July 2015.
3.3.8.4 Existing equivalent high-pressure sprinkler systems, approved and installed in accordance with the
guidelines specified in Res. A.800(19) are permitted to remain in service as long as they are serviceable based
on the survey results.
3.4
Water-Spraying Fire-Extinguishing Systems and Equivalent Fire-Extinguishing Systems
3.4.1
General Requirements
3.4.1.1 The water-spraying fire-extinguishing system shall be fitted with the supply water pump,
distribution pipelines which may be divided into sections with section valves and spraying nozzles.
3.4.1.2 The capacity and the pressure head of the supply water pump shall be determined on the basis
of the required water discharge rate, taking into account the characteristics and number of spraying
nozzles installed in the largest protected space. Where the system capacity is less than 50% of the fire
pumps capacity, specified in 3.2.1.5, a separate supply water pump need not be installed and the system
may be supplied with water from the water fire main system. Otherwise, an independent supply water
pump shall be provided, with the capacity sufficient to cover the demand of the largest protected space.
3.4.1.3 Unless the requirements for protected spaces provide otherwise, the water discharge rate shall
be taken as follows:
– 5 l/min per floor square metre – for cargo spaces and machinery spaces;
– 24 l/min per shelf square metre – for shelves in explosives store-rooms.
3.4.1.4
space.
The water pressure shall ensure an effective distribution of dispersed water in the protected
3.4.1.5 The spraying nozzles shall be so arranged as to provide uniform distribution of dispersed water
in the protected space.
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Fire Protection
3.4.1.6 The system shall be fitted with filters preventing the nozzles from becoming clogged by
impurities in sea water or pipe corrosion chips.
3.4.1.7
Pipelines shall be capable of being drained.
3.4.1.8 In each of the protected spaces, an adequate draining system shall be provided to enable
suitable overboard discharge of water by means of gravitational force or bilge pump.
3.4.1.9 Spaces/group of spaces protected by water-spraying fire-extinguishing system shall be
indicated by a plate with the symbol used on Fire Control Plan.
3.4.2
Water-Spraying Fire-Extinguishing System for Ro-Ro Spaces,
Special Category Spaces and Vehicle Spaces
Manually activated water-spraying fire-extinguishing system shall fulfil the requirements specified in
this sub-chapter. The guidelines for the design, manufacture and type tests of automatically activated
water-spraying fire-extinguishing systems are given in Publication No. 89/P.
3.4.2.1 The system shall consist of open type nozzles, water supply pipings, manually operated section
control valves, as well as water supply pump/pump units.
3.4.2.2 The system shall be divided into sections. Each section shall be capable of being isolated by
one section control valve. The section control valves shall be located outside the protected spaces, in a
compartment readily accessible without entering the protected spaces and which will not be cut off by a
fire in the protected spaces. It should be possible to manually open and close the section control valves
either directly on the valve or via a control valve system routed outside of the protected spaces. Means
shall be provided to prevent the operation of the section control valves by an unauthorized person. The
space with control valves shall be adequately ventilated to minimize the build-up of smoke.
The location of section control valves shall be indicated by a plate with the symbol used on Fire
Control Plan.
3.4.2.3 Section control valves shall be indicated by plates bearing the number of each section, in
accordance with numbering shown on installation plans and in operating manuals.
3.4.2.4
The section valves manifold shall be fitted with a pressure gauge.
3.4.2.5 The pump/pump units shall be capable of being brought into operation by remote (manual)
control from the position at which the section valves are situated.
The position of remote control of pumps/pump units shall be indicated by a plate with the symbol used on
Fire Control Plan.
3.4.2.6 The piping system shall be designed (sized) in accordance with a hydraulic calculation technique,
such as the Hazen-Williams hydraulic calculation technique or the Darcy-Weisbach hydraulic calculation
technique to ensure the availability of the flows and pressures required for correct performance of the system.
The design of the system shall ensure that full system pressure is available at the most remote nozzle in each
section within 60 s of activation.
3.4.2.7 The system supply pumps/pump units shall be located outside the protected spaces and all
power supply components (including cables) shall be installed outside the protected spaces. If this is not
practicable, fire-resistant cables complying with the requirements specified in sub-chapter 16.1.2, Part
VIII – Electrical Installations and Control Systems, suitably protected against mechanical damage, may
be used. The electrical components of the supply pumps/pump units shall have a minimum rating of IP
54.
3.4.2.8 The capacity of the system water supply shall be sufficient for the total simultaneous coverage
of the minimum coverage area specified in 3.4.2.22, with respect to vertically applicable area specified in
3.4.2.20.
Fire-Extinguishing System and Inert Gas System
69
3.4.2.9 The system shall be provided with a redundant means of pumping or otherwise supplying a
water extinguishing medium to the system. The capacity of the redundant means shall be sufficient to
compensate for the loss of the main supply pump/pump unit or an alternative source. Failure of any one
component in the power and control system shall not result in a reduction of the required pump capacity
of the system. Systems requiring an external power source need only be supplied by the main power
source. Hydraulic calculations shall be conducted to ensure that sufficient flow and pressure are
delivered to the hydraulically most demanding section in normal operation and in the event of the failure
of the main supply pump/pump unit.
3.4.2.10 The system shall be fitted with a permanent sea inlet and be capable of continuous operation
during a fire using sea water.
3.4.2.11 The system and its components shall be designed to withstand ambient temperatures,
vibration, humidity, shock, impact, clogging and corrosion normally encountered on ships. Piping, pipe
fittings and related components, except gaskets inside the protected spaces shall be designed to withstand
925 oC. Distribution pipings shall be constructed of galvanized steel, stainless steel or equivalent
corrosion-resistant steel.
3.4.2.12 A means for testing the operation of each section of the system and for checking the required
pressure and flow shall be provided.
3.4.2.13
Operating instructions for the system shall be displayed at each operating position.
3.4.2.14 Installation plans and operating manuals shall be supplied to the ship and be readily available
on board. Installation plan shall be displayed showing spaces covered and the location of the zone in
respect of each section. Instructions for testing and maintenance shall be available on board.
3.4.2.15 All installation, operation and maintenance instructions/plans for the system shall be in the
working language of the ship. If the working language of the ship is not English, French or Spanish, a
translation into one of these languages shall be included.
3.4.2.16 Means for flushing the system pipings with fresh water shall be provided. The pipings shall
be fitted with a sufficient number of drain valves.
3.4.2.17 The presence of obstructions and the potential for shielding of the water spray shall be
evaluated to ensure that the system performance is not affected. Supplementary nozzles shall be installed
beneath obstructions. The nozzles shall be so located as to protect the spaces above and below
intermediate decks, hoistable decks and ramps. Nozzles below hoistable decks shall be capable of
protecting all applicable heights.
3.4.2.18 The length of a deluge section shall be not less than 20 m and the width of the section shall
not be less than 14 m. Furthermore, the sections need not be longer than or wider than the distance
between gastight steel bulkheads. The maximum size of a section on any single deck shall be 48 m
multiplied by the width of a cargo space (measured as the distance between tight steel divisions).
Vertically one section can cover up to three decks.
3.4.2.19 Deluge systems shall be designed for the simultaneous activation of the two adjacent deluge
sections with the greatest hydraulic demand at the minimum water discharge density given in 3.4.2.21.
The minimum operating pressure of any nozzle shall be 0.12 MPa.
3.4.2.20 Vertically, the applicable area of all decks, including hoistable decks or other intermediate
decks, between gastight steel decks shall be included for simultaneous coverage (e.g. with one hoistable
deck, both the layer above and below this deck with a dimensioning area complying with 3.4.2.22 shall
be included in the water supply calculations). Decks with ramps are accepted as gastight decks assuming
that the ramps are always in their closed position at sea and the ramps and the decks which these ramps
are part of are reasonably gastight.
3.4.2.21
The minimum required water discharge density shall be as follows:
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Fire Protection
– 5 l/min/m2 – for decks having a free height equal or less than 2.5 m;
– 10 l/min/m2 – for decks having a free height in excess of 2.5 m but less than 6.5 m;
– 15 l/min/m2 – for decks having a free height in excess of 6.5 m but less than 9.0 m.
3.4.2.22
The minimum coverage area (F) shall be calculated from the formula:
F = 2 × 20 × B [m2]
where:
B – full breadth of the protected space. [m]
3.4.2.23 Nozzles shall be positioned at or within 0.6 m of the underside of the deck in order to
distribute water over and between all vehicles or cargo in the area being protected. The maximum
horizontal spacing between nozzles or sprinklers shall not exceed 3.2 m.
3.4.2.24 Nozzles shall have such bore diameter as to prevent clogging by impurities contained in the
supply water. Nozzles of other type may be permitted if suitable filters have been installed in the system.
3.4.2.25 The system and its components shall be designed and installed in accordance with
international standards.
3.4.2.26 The nozzles shall be manufactured and type tested in accordance with guidelines given in
Appendix A to MSC/Circ. 1165, as amended by MSC.1/Circ. 1269.
3.4.3
Equivalent High-Pressure Water-Based Fire-Extinguishing System
for Ro-Ro Spaces, Special Category Spaces and Vehicle spaces
Guidelines for the design, assembly and type tests of the system are given in Publication No. 89/P.
3.4.4
Water-Spraying Fire-Extinguishing System and Equivalent High-Pressure Water-Based
Fire-Extinguishing System for Machinery Spaces and Cargo Pump-Rooms
Guidelines for the design, assembly and type tests of the system are given in Publication No. 89/P.
3.4.5
Water-Spraying Fire-Extinguishing System and Equivalent High-Pressure Water-Based
Fire-Extinguishing System for Cabin Balconies
Guidelines for the design, assembly and type tests of the system are given in Publication No. 89/P.
3.4.6
Fixed Local Application Water-Based Fire-Extinguishing System for Machinery Spaces of
Category A
3.4.6.1 In machinery spaces of category A, the system shall be capable, without the necessity of the
engines shut-down, personnel evacuation or sealing the space, of protecting the areas 43 containing the
following equipment:
.1 internal combustion engines parts, which constitute fire hazard 44;
.2 boiler fronts;
.3 incinerators parts, which constitute fire hazard;
.4 heated oil separators;
.5 oil-fired equipment, such as inert gas generators, thermal oil heaters, etc.
3.4.6.2 The system shall consist of the supply water pump, distribution pipes, spraying nozzles, starting
arrangement and signaling devices.
Distribution pipes shall be divided into sections protecting the above-mentioned areas.
Each section of the pipes shall be divided by a section valve – electromechanical/ pneumatic, remotely
controlled from the control panel and from the position of particular section operation. Provision shall be
made for manual operation of the electromechanical/pneumatic valve in the event of loss of power.
43
44
Protected area is an area within a protected space which is required to be protected by the system. For more precise definition –
see MSC/Circ.1120, interpretations regarding SOLAS II-2/10.5.6.3.1, .2 and 3 regulations.
In multi-engine installations, at least two pipe sections shall be arranged.
Fire-Extinguishing System and Inert Gas System
71
The supply water pump and section valves shall be located outside the protected areas.
3.4.6.3
3.4.6.4 The capacity of the supply water pump shall be based on the protected area demanding the
largest volume of water.
3.4.6.5 The system shall be started manually. The system control panel with start buttons for each
section shall be located in the engine control room. In addition, start buttons for particular section of the
system shall be located close to each protected area.
The location of control panel and start buttons for each section of the system shall be indicated by a
plate with the symbol used on Fire Control Plan.
3.4.6.6 In ships with periodically unattended machinery spaces, the system shall have the automatic
release capability – see 6.16.3.2.
Machinery space fitted with local application water-based fire-extinguishing system operated
automatically shall be indicated by a warning plate placed on access door, bearing the inscription:
CAUTION. THE POSSIBILITY OF RELEASE OF THE WATER-BASED SYSTEM.
3.4.6.7 Activation of the system shall give visual and audible alarms, as well as indication of the
activated zone. Visual and audible alarms shall be provided in each protected space, in the engine control
room and on the bridge. Audible alarms may use a single tone.
3.4.6.8 The operation of the fire-extinguishing system and supply of water by each of the section shall
not result in the loss of electric power or reduction of the manoeuvrability of the ship.
3.4.6.9 The system shall be capable of fire suppression with mechanical ventilation running and supplying
air to the protected space or a method of automatically shutting air supply fans upon activation of the system
shall be provided.
3.4.6.10 The system shall be available for immediate use and capable of continuously supplying water
extinguishing medium for at least 20 minutes in order to suppress or extinguish the fire or to prepare for
the operation of the main fire-extinguishing system.
3.4.6.11 The supply water pump, control of the system and signaling devices shall be supplied from
the main and the emergency source of electric power. Possibility of automatic switching over of power
sources shall be provided.
3.4.6.12
89/P.
3.4.7
Guidelines for the design, assembly and type tests of the system are given in Publication No.
Local Application Water-Spraying Fire-Extinguishing System for Exhaust
Gas-Fired Thermal Heaters
3.4.7.1 The flow rate of the water-spraying system shall be at least 5 l/min per square metre of the
heated surfaces.
3.4.7.2 The system shall be available for immediate use and capable of continuously supplying water
at full capacity for at least 20 min. The use of fresh water is recommended.
3.4.7.3 Water-spraying nozzles shall ensure uniform distribution of water on heated heater surfaces.
The nozzles shall be arranged so that the machinery space fittings do not obstruct the water jets.
3.4.7.4 To protect against uncontrolled water leaks on heated exhaust gas-fired thermal oil heater
surfaces, the supply line shall be fitted with two shut-off valves and a drain valve between them.
3.4.7.5 Provision shall be made for manual starting of the system. Control valves and pump starters
shall be installed in one easily accessible place, safely distanced from the exhaust gas-fired thermal oil
heater.
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Fire Protection
The location of the manual starting of water-spraying system shall be indicated by a plate with the
symbol used on Fire Control Plan.
Operation instructions for the system shall be also displayed at the starting arrangement.
3.4.7.6 The exhaust gas line/duct located below the exhaust gas-fired thermal oil heater shall be protected
by a water trap for collecting and draining water to prevent water flooding the engine. Water shall be drained
to the bilge or a suitable waste.
3.4.7.7 Activation of the system shall set off the alarm in the machinery space and in a continuously
manned control station.
3.4.8
Water-Spraying Fire-Extinguishing System
for Container Ships with Open-Top Container Holds
3.4.8.1 Open-top containership means a containership especially designed so that one or more of the
cargo holds need not be fitted with hatch covers.
3.4.8.2 The fire-extinguishing system shall be capable of suppressing fire in the bay of origin and to
cool adjacent areas to prevent structural damage.
3.4.8.3 The system shall be capable of spraying water into the cargo hold from deck level downward.
The system shall be designed and arranged to take account of the specific hold and container
configuration.
3.4.8.4 The system shall be subdivided into sections, with each section to consist of a ring-line at deck
level in an open cargo hold around a container bay.
The location of the section valves manifold and the system activation position shall be indicated by a
plate with the symbol used on Fire Control Plan.
3.4.8.5 The system shall be capable of spraying the outer vertical boundaries of each container bay in an
open cargo hold and of cooling the adjacent structure. The application density shall not be less than 1.1
l/min/per square metre of the hold.
3.4.8.6
The system shall be supplied by at least one dedicated pump with a sufficient capacity to serve
all container bays in any one open-top container simultaneously. The pump(s) shall be installed outside the
open-top area.
3.4.8.7 The availability of water to the water spray system shall be at least 50% of the total capacity, with
adequate spray patterns in the open-top container hold, and with any one dedicated pump inoperable. For the
case of a single dedicated pump, this may be accomplished by an interconnection to an alternative source of
water. The system shall be supplemented by fire hose supply from the water fire main on the open deck.
3.4.9
Water Screen System
3.4.9.1 The water screen system is intended to be used in the following cases:
.1 for creating “water wall” in ships with industrial spaces, where there is no possibility of installing
A-60 Class divisions;
.2 in ships adapted for operation in oil spillage area – for drenching the external bulkheads of
superstructures.
3.4.9.2 The water discharge rate of the water screen system shall be taken as follows:
– 70 l/min per linear metre of the bulkhead length as a full substitute of A-60 Class division;
– 30 l/min per linear metre of the bulkhead length for one side drenching of A-0 Class steel division.
3.4.9.3 The water screen system may be supplied from the water fire main system; for small water
screens, the system may also be supplied from sea water or fresh water pressure tank system.
Fire-Extinguishing System and Inert Gas System
73
3.4.9.4 Water screen means of control shall be located in easily accessible and safe positions. The
location of remote means of the water screen system control shall be indicated by a plate with the symbol
used on Fire Control Plan.
3.5
Fixed Foam Fire-Extinguishing Systems
3.5.1
Application and General Requirements
3.5.1.1 Fixed foam fire-extinguishing systems are intended for the protection of machinery spaces,
cargo spaces (conventional cargo holds), cargo pump-rooms, vehicle spaces, ro-ro and special category
spaces. Fixed foam fire-extinguishing systems cannot be used for the protection of cargo pump-rooms in
chemical tankers carrying alcohol-based liquid cargoes, unless the systems have been additionally tested
with alcohol-based fuel and alcohol resistant foam.
3.5.1.2 Foam concentrates used in the foam fire-extinguishing systems are subject to type tests in
accordance with the guidelines specified in circulars: MSC.1/Circ.1312/Corr.1 – for low-expansion
foam, MSC/Circ.798 – for medium-expansion foam and MSC/Circ.670 – for high-expansion foam.
3.5.1.3 Different foam concentrate types shall not be mixed in a foam system. Foam concentrates of
the same type, but produced by different manufacturers, shall also not be mixed unless considered
compatible.
3.5.1.4 A space/spaces protected by the foam fire-extinguishing system shall be indicated by an
appropriate plate, placed on the space/spaces access door, with the symbol used on Fire control plan.
3.5.2
Definitions
For the purpose of this sub-chapter, the following definitions have been adopted:
.1 Foam generators – discharge devices or assemblies through which high-expansion foam
solution is aerated to form foam that is discharged into the protected space. Foam generators
using inside air typically consist of a nozzle or a set of nozzles and a casing. The casing shall be
made of perforated steel/ stainless steel plates shaped into a box that enclose the nozzle(s). Foam
generators using outside air typically consist of nozzles enclosed within a casing that spray onto
the screen. An electric, hydraulic or pneumatically driven fan is provided to aerate the solution.
.2 High-expansion foam fire-extinguishing sy stem – fixed total flooding extinguishing
systems that use inside air or outside air for aeration of the foam solution. A high-expansion foam
system consists of foam generators and the dedicated foam concentrate approved during the fire
testing.
.3 Inside air foam sy stem – a fixed high-expansion foam fire-extinguishing system with foam
generators located inside the protected space and drawing air from that space.
.4 Outside air foam sy stem – a fixed high-expansion foam fire-extinguishing system with foam
generators installed outside the protected space that are directly supplied with fresh air.
.5 Foam delivery ducts – supply ducts for introducing high-expansion foam into the protected
space from foam generators located outside the protected space.
.6 Expansion ratio – the ratio of the volume of foam to the volume of solution from which the
foam is produced.
.7 Nominal application rate – the nominal flow rate per area expressed in l/min/m2.
.8 Nominal foam expansion ratio – the ratio of the volume of foam to the volume of foam
solution from which it is made, under non-fire conditions and at an ambient temperature of e.g. ±
20 oC.
.9 Nominal foam production – the volume of foam produced per time unit, i.e. nominal flow
rate times foam expansion ratio, expressed in m3/min.
.10 Nominal flow rate – the foam solution flow expressed in l/min.
.11 Nominal filling rate – the ratio of nominal foam production to the area, expressed in m/min.
.12 Nominal filling time – is the ratio of the height of the protected space to the space nominal
filling rate, expressed in minutes.
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Fire Protection
.13 Foam – the extinguishing medium produced when foam solution passes through a foam
generator and is mixed with air.
.14 Low-expansion foam – foam with expansion ratio up to 20 (generally about 10).
.15 Medium- expansion foam – foam with expansion ratio between 20 and 200 (generally about
100).
.16 High-expansion foam – foam with expansion higher than 200 (generally about 500).
.17 Design filling rate – at least the minimum nominal filling rate used during the approval tests.
.18 Foam solution – a solution of foam concentrate and water.
.19 Foam mixing rate – the percentage of foam concentrate mixed with water forming the foam
solution.
.20 Foam concentrate – a liquid which, when mixed with water in the appropriate concentration
forms a foam solution.
.21 Alcohol resistant foam concentrate – foam concentrate used for extinguishing fires of
water-miscible flammable liquids (polar liquids) and fires of other liquids, that destroy the typical
foam.
3.5.3
3.5.3.1
Fixed High-Expansion Foam Fire-Extinguishing Systems
General Requirements
3.5.3.1.1 Fixed high-expansion foam system shall consist of foam concentrate storage tank(s), water
supply pump, foam pump and foam proportioner, water and foam concentrate, distribution pipes and
foam generators. The system may be fitted with ducts supplying high-expansion foam into a protected
space and ducts supplying air into foam generators.
3.5.3.1.2 The system shall be capable of manual release and shall be designed to produce foam at the
required application rate within 1 minute of release. Automatic release of the system is not permitted
unless appropriate operational measures or interlocks are provided to prevent any local application fireextinguishing systems from interfering with the effectiveness of the system.
3.5.3.1.3 The system shall be capable of fire extinction, it shall be manufactured and type-tested in
accordance with the guidelines specified in MSC.1/Circ.1384.
3.5.3.1.4 The system and its components shall be so designed as to withstand ambient temperature
changes, vibration, humidity, shock, clogging and corrosion normally encountered on ships. Piping,
fittings and related components inside the protected spaces (except gaskets) shall be designed to
withstand 925°C.
3.5.3.1.5 The system piping, foam concentrate storage tanks, components and pipe fittings in contact
with the foam concentrate shall be compatible with the foam concentrate and be constructed of corrosion
resistant materials, such as stainless steel or equivalent. Other system piping and foam generators shall be
made of full galvanized steel or equivalent. Distribution pipes shall have self-draining capability.
3.5.3.1.6 Means for testing the operation of the system and assuring the required pressure and flow
shall be provided by pressure gauges at both inlets (water and foam concentrate supply) and at the outlet
of the foam proportioner. A test valve shall be installed on the distribution piping downstream of the
foam proportioner, along with orifices which reflect the calculated pressure drop of the system. All
sections of piping shall be provided with connections for flushing, draining and purging with air. All
nozzles shall be able to be removed for inspection in order to prove clear of debris.
3.5.3.1.7 Means shall be provided for the crew to safely check the quantity of foam concentrate and
take periodic control samples for foam quality. The minimum level/required foam volume shall be
marked on the tank.
The location of foam concentrate storage tank shall be indicated by means of plate with the symbol
used on Fire Control Plan.
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75
3.5.3.1.8 Operating instructions for the system shall be displayed at each operating position.
The location of the high-expansion foam system remote control shall be indicated by means of plate
with the symbol used on Fire Control Plan.
3.5.3.1.9
Spare parts shall be provided on board in accordance with the manufacturer's instruction.
3.5.3.1.10 If an internal combustion engine is used as a prime mover for the sea water pump for the
system, the fuel oil tank shall contain sufficient fuel to enable the pump to run on full load for at least 3 h
and sufficient reserves of fuel shall be available outside the machinery space of category A to enable the
pump to be run on full load for an additional 15 h. If the fuel tank serves other internal combustion
engines simultaneously, the total fuel tank capacity shall be adequate for all connected engines.
The minimum level/required fuel oil volume shall be marked on the tank.
3.5.3.1.11 The arrangement of foam generators and foam delivery piping/ducts in the protected space
shall not interfere with access to the installed machinery for routine maintenance.
The location of high-expansion foam delivery ducts outlets shall be indicated by a plate with the
symbol used on Fire Control Plan.
3.5.3.1.12 The system source of power supply, foam concentrate supply and means of controlling the
system shall be readily accessible and simple to operate, and shall be arranged at positions outside the
protected space not likely to be cut off by a fire in the protected space. All electrical components directly
connected to the foam generators shall have at least an IP 54 rating.
3.5.3.1.13 The piping system shall be sized in accordance with a hydraulic calculation technique, such
as e.g. the Hazen-Williams method to ensure availability of flows and pressures required for correct
performance of the system.
3.5.3.1.14 The arrangement of the protected spaces shall be such that they may be ventilated as the
space is being filled with foam. Procedures shall be provided to ensure that upper level dampers, doors
and other suitable openings are kept open in case of a fire. For inside air foam systems, spaces below 500
m3 need not comply with this requirement.
3.5.3.1.15 Onboard procedures shall be established to require personnel re-entering the protected space
after the system discharge to wear breathing apparatus to protect them from oxygen deficient air and
products of combustion entrained in the foam blanket.
3.5.3.1.16 Installation plans and operating manuals shall be supplied to the ship and be readily
available on board. A list or plan shall be displayed showing the spaces covered and the location of the
zone in respect of each section. Instructions for testing and maintenance shall be available on board.
3.5.3.1.17 All installation, operation and maintenance instructions/plans for the system shall be in the
working language of the ship. If the working language of the ship is not English, French, nor Spanish, a
translation into one of these languages shall be included.
3.5.3.1.18 The foam generator room shall be ventilated to protect against overpressure, and shall be
heated to avoid the possibility of freezing.
3.5.3.1.19 The quantity of foam concentrate available shall be sufficient to produce a volume of foam
equal to at least five times the volume of the largest protected space enclosed by steel bulkheads, at the
nominal expansion ratio, or enough for 30 min of full operation for the largest protected space,
whichever is greater.
3.5.3.1.20 Machinery spaces, cargo pump-rooms, vehicle spaces, ro-ro spaces and special category
spaces shall be provided with audible and visual alarms within the protected space warning of the release of
the system. The alarms shall operate for the length of time needed to evacuate the space, however in no
case less than 20 s.
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Fire Protection
3.5.3.1.21 The operating manual shall contain the following information:
.1 prior to starting the system, the operator shall ensure that the local application water-based system
(if provided) is shut down. Simultaneous use of the foam system and the local application waterbased system is prohibited due to the decrease in the effectiveness of foam extinguishing.
.2 after starting the system, the air vent flaps/ closings of openings located in the upper part of the
protected space shall remain open, for removing the air from the space. After filling the space with
foam, the flaps/openings shall be closed.
3.5.3.2
3.5.3.2.1
Inside Air Foam Systems
Systems for the Protection of Machinery Spaces
and Cargo Pump-Rooms
3.5.3.2.1.1 The system shall be supplied by both main and emergency sources of power. The
emergency power supply shall be provided from outside the protected space.
3.5.3.2.1.2 Sufficient foam-generating capacity shall be provided to ensure that the minimum design
filling rate for the system is met and in addition shall be adequate to completely fill the largest protected
space within 10 min.
For the purpose of determining a volumetric capacity of the machinery space of category A protected
with foam system, the following information shall be taken into account.
Where such a machinery space includes a casing (e.g. a machinery space of category A containing
internal combustion machinery, and/or a boiler, with an engine casing), the volume of such casing, above
the level up to which foam shall be filled to protect the highest positioned fire risk objects within the
machinery space, need not be included in the volume of the protected space.
The level up to which foam shall be filled to protect the highest positioned fire risk objects within the
machinery space shall not be less than:
−
1 m above the highest point of any such object; or
−
the lowest part of the casing (when the fire risk objects are not located in the casing),
whichever the limit value is higher.
Where such a machinery space does not include a casing, the volume of the largest protected space
shall be that of the space in its entirety, irrespective of the location of any fire risk object therein.
Fire risk objects include those listed in the definition of machinery space of category A, as well as
other equipment such as exhaust gas boilers, fuel tanks, etc.
3.5.3.2.1.3 The arrangement of foam generators shall, in general, be designed based on the approval
test results. A minimum of two generators shall be installed in every space containing combustion
engines, boilers, purifiers, and similar equipment. Small workshops and similar spaces may be covered
by only one foam generator.
3.5.3.2.1.4 Foam generators shall be uniformly distributed under the uppermost ceiling in the
protected spaces including the engine casing. The number and location of foam generators shall be
adequate to ensure all high risk areas are protected in all parts and at all levels of the spaces. Extra foam
generators may be required in obstructed locations. The foam generators shall be arranged with at least 1
m free space in front of the foam outlets, unless tested with less clearance. The generators shall be
located behind main structures, and above and away from engines and boilers in positions where damage
from an explosion is unlikely.
3.5.3.2.2
Systems for the Protection of Vehicle, Ro-Ro and Special Category Spaces
3.5.3.2.2.1 The system shall be supplied by the ship's main power source. An emergency power
supply is not required.
3.5.3.2.2.2
Sufficient foam-generating capacity shall be provided to ensure that the minimum design
filling rate for the system is met and in addition shall be adequate to completely fill the largest protected
space within 10 min, except that, for the systems intended for the protection of vehicle and ro-ro spaces
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77
and special category spaces with the deck height of 3 metres or less, the filling rate shall not be less than twothirds of the design filling rate and in addition sufficient to fill the largest protected space within 10 min.
3.5.3.2.2.3 The system may be divided into sections, however, the capacity and design of the system
shall be based on the protected space demanding the greatest volume of foam. Adjacent protected spaces
need not be served simultaneously if the boundaries between the spaces are A Class divisions.
3.5.3.2.2.4 The arrangement of foam generators shall, in general, be designed based on the approval
test results. The number of generators may be different, but the minimum design filling rate determined
during approval tests shall be provided by the system. A minimum of two generators shall be installed in
every space. The foam generators shall be arranged to uniformly distribute foam in the protected spaces,
and the layout shall take into consideration obstructions that can be expected when cargo is loaded on
board. As a minimum, generators shall be located on every second deck, including movable decks. The
horizontal spacing of the generators shall ensure rapid supply of foam to all parts of the protected space.
This shall be established on the basis of full scale tests.
3.5.3.2.2.5 The foam generators shall be arranged with at least 1 m free space in front of the foam
outlets, unless tested with less clearance.
3.5.3.3
System Using Outside Air
3.5.3.3.1
Systems for the Protection of Machinery Spaces and Cargo Pump-Rooms
3.5.3.3.1.1 The system shall be supplied by both the main and emergency sources of power. The
emergency power supply shall be provided from outside the protected machinery space.
3.5.3.3.1.2 Sufficient foam-generating capacity shall be provided to ensure that the minimum design
filling rate for the system is met and in addition shall be adequate to completely fill the largest protected
space within 10 min.
For the purpose of determining a volumetric capacity of a space protected by foam fire-extinguishing,
see paragraph 3.5.3.2.1.2.
3.5.3.3.1.3 The arrangement of foam delivery ducts shall, in general, be designed based on the
approval test results. The number of ducts may be different, but the minimum design filling rate
determined during approval tests shall be provided by the system. A minimum of two ducts shall be
installed in every space containing combustion engines, boilers, purifiers and similar equipment. Small
workshops and similar spaces may be covered by only one duct.
3.5.3.3.1.4 Foam delivery ducts shall be uniformly distributed under the uppermost ceiling in the
protected spaces including the engine casing. The number and location of ducts shall be adequate to
ensure all high risk areas are protected in all parts and at all levels of the spaces. Extra ducts may be
required in obstructed locations. The ducts shall be arranged with at least 1 m free space in front of the
foam delivery ducts, unless tested with less clearance. The ducts shall be located behind main structures,
and above and away from engines and boilers in positions where damage from an explosion is unlikely.
3.5.3.3.1.5 The arrangement of the foam delivery ducts shall be such that a fire in the protected space
will not affect the foam-generating equipment. If the foam generators are located adjacent to the
protected space, foam delivery ducts shall be installed to allow at least 450 mm of separation between the
generators and the protected space, and the separating divisions shall be of A-60 Class standard. Foam
delivery ducts shall be constructed of steel having a thickness of not less than 5 mm. In addition,
stainless steel dampers (single or multi-bladed) with a thickness of not less than 3 mm shall be installed
at the openings in the boundary bulkheads or decks between the foam generators and the protected space.
The dampers shall be automatically operated (electrically, pneumatically or hydraulically) by means of
remote control of the foam generator related to them, and arranged to remain closed until the foam
generators begin operating.
3.5.3.3.1.6
The foam generators shall be located where an adequate fresh air supply can be arranged.
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Fire Protection
3.5.3.3.2
Systems for the Protection of Vehicle, Ro-Ro and Special Category Spaces
3.5.3.3.2.1 The system shall be supplied by the ship's main power source. An emergency power
supply is not required.
3.5.3.3.2.2 Sufficient foam-generating capacity shall be provided to ensure that the minimum design
filling rate for the system is met and in addition shall be adequate to completely fill the largest protected
space within 10 min, except that for systems intended for the protection of vehicle, ro-ro spaces and
special category spaces with the deck height of 3 m or less, the filling rate shall not be not less than twothirds of the design filling rate and in addition sufficient to fill the largest protected space within 10 min.
3.5.3.3.2.3 The system may be divided into sections, however, the capacity and design of the system
shall be based on the protected space demanding the greatest volume of foam. Adjacent protected spaces
need not be served simultaneously if the boundaries between the spaces are A Class divisions.
3.5.3.3.2.4 The arrangement of foam delivery ducts shall, in general, be designed based on the
approval test results. The number of ducts may be different, but the minimum design filling rate
determined during approval tests shall be provided by the system. A minimum of two ducts shall be
installed in every space. The foam generators shall be arranged to uniformly distribute foam in the
protected spaces, and the layout shall take into consideration obstructions that can be expected when
cargo is loaded on board. As a minimum, ducts shall be led to every second deck, including movable
decks. The horizontal spacing of the ducts shall ensure rapid supply of foam to all parts of the protected
space. This shall be established on the basis of full scale tests.
3.5.3.3.2.5 The system shall be arranged with at least 1 m free space in front of the foam outlets,
unless tested with less clearance.
3.5.3.3.2.6 The arrangement of the foam delivery ducts shall be such that a fire in the protected space
will not affect the foam-generating equipment. If the foam generators are located adjacent to the
protected space, foam delivery ducts shall be installed to allow at least 450 mm of separation between the
generators and the protected space, and the separating divisions shall be of A-60 Class standard. Foam
delivery ducts shall be constructed of steel having a thickness of not less than 5 mm. In addition,
stainless steel dampers (single or multi-bladed) with a thickness of not less than 3 mm shall be installed
at the openings in the boundary bulkheads or decks between the foam generators and the protected space.
The dampers shall be automatically operated (electrically, pneumatically or hydraulically) by means of
remote control of the foam generator related to them, and arranged to remain closed until the foam
generators begin operating.
3.5.3.3.2.7
3.5.3.4
The foam generators shall be located where an adequate fresh air supply can be arranged.
Tests of the System
3.5.3.4.1 After installation, the pipes, valves, fittings and assembled systems shall be tested, including
the operation tests of the power and control systems, water pumps, foam pumps, valves, remote and local
release stations and alarms. Flow at the required pressure shall be verified for the system using orifices
fitted to the test line. In addition, all distribution pipes shall be flushed with fresh water and blown
through with air to ensure that the piping is free of obstructions.
3.5.3.4.2 Operation tests of all foam proportioners or other foam mixing devices shall be performed to
confirm that the mixing ratio tolerance is within + 30 to 0% of the nominal mixing ratio defined by the
system approval. For foam proportioners using foam concentrates of Newtonian type with kinematic
viscosity equal to or less than 100 cSt at 0 ºC and density equal to or less than 1.1 kg/dm3, this test can be
performed with water instead of foam concentrate. Other arrangements shall be tested with the actual
foam concentrate.
Fire-Extinguishing System and Inert Gas System
3.5.3.5
79
Systems Using Outside Air with Foam Generators Installed Inside the Protected Space
Systems using outside air, but with generators located inside the protected space and supplied by
fresh air ducts may be accepted, provided that these systems have been shown to have performance
and reliability equivalent to the systems defined in 3.5.3.3. For acceptance, the following minimum
design features shall be considered:
.1 lower and upper acceptable air pressure and flow rate in supply ducts;
.2 function and reliability of damper arrangements;
.3 arrangements and distribution of air delivery ducts including foam outlets; and
.4 separation of air delivery ducts from the protected space.
3.5.4
Fixed Low-Expansion Foam Fire-Extinguishing Systems
3.5.4.1
Installation Requirements
3.5.4.1.1 The system shall consist of foam storage tank, water supply pump, foam pump and foam
proportioner, water and foam distributing pipes and discharge outlets.
3.5.4.1.2 The system shall be capable of discharging through fixed discharge outlets, in no more than 5
min, a quantity of foam sufficient to produce an effective foam blanket over the largest single area over
which oil fuel is liable to spread.
3.5.4.1.3 Means shall be provided for effective distribution of the foam through a permanent system of
piping and control valves or cocks to suitable discharge outlets, and for the foam to be effectively
directed by fixed sprayers onto other main fire hazards in the protected space. The means for effective
distribution of the foam shall be proven acceptable through calculation or by testing.
3.5.4.1.4 The means of control of any such systems shall be readily accessible and simple to operate
and shall be grouped together in as few locations as possible at positions not likely to be cut off by a fire
in the protected space.
The location of the low-expansion system remote control shall be indicated by means of plate with the
symbol used on Fire Control Plan.
3.6
3.6.1
Fixed Gas Fire-Extinguishing Systems
General Requirements
3.6.1.1 Clean extinguishing agents, i.e. chemical compositions from the group of halogen derivatives
of hydrocarbons (e.g. FM-200, FE-36, etc. ), inert gases (CO2, nitrogen, argon, etc.) or their mixtures,
shall be used as fire-extinguishing agents in fixed gas fire-extinguishing systems. Halon 1211, 1301 and
2402 and perfluorocarbons may not be used as fire-extinguishing agents in these systems.
3.6.1.2 Where the quantity of the fire-extinguishing medium is required to protect more than one
space, the quantity of medium available need not be more than the largest quantity required for one space
so protected, provided the spaces are separate.
Adjacent spaces, not separated by at least A-0 Class divisions, provided with independent ventilation,
shall be regarded as one space.
If there is a connection through ventilation ducts between two or more cargo spaces protected by a
fixed gas fire-extinguishing system, such spaces shall be considered as one protected space.
3.6.1.3 Fixed gas fire-extinguishing system shall consist of container(s) for the storage of the fireextinguishing medium, connected to a manifold, pipes fitted with control valves, normally closed,
conveying the medium into the protected spaces and warning signalization. The control valves shall be so
marked as to indicate clearly the spaces to which the pipes are led.
3.6.1.4 Where air receivers (e.g. diesel engine starting air receivers) are installed in a protected space,
the volume of the receivers converted to free air volume shall be added to the gross volume of the space
when calculating the necessary quantity of the fire-extinguishing medium. Alternatively, a discharge pipe
may be fitted and led directly to the open air.
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Fire Protection
3.6.1.5 Means shall be provided for the crew or shore personnel to safely check the quantity of the fireextinguishing medium in the containers, without the necessity to move the containers completely from
their fixing position. For carbon dioxide systems, hanging bars for a weighing device above each bottle
row or other means shall be provided. For other types of extinguishing media, suitable surface indicators
may be used.
In space, in which containers with fire-extinguishing medium are located, adequate clearance, above
the containers, shall be provided to facilitate the containers exchange.
3.6.1.6 Pressure container(s) for the storage of fire-extinguishing medium and associated pressure
components shall be designed to the relevant national standards, having regard to their locations and
maximum ambient temperatures expected in service. The maximum ambient temperature 550 C, expected
in service, is assumed.
3.6.1.7 The piping for the distribution of fire-extinguishing medium shall be so arranged and discharge
nozzles so arranged as to ensure a uniform distribution of the medium in the protected space.
Classification documentation shall contain the system flow hydraulic calculations.
3.6.1.8 Unless expressly provided otherwise, pressure containers for the storage of fire-extinguishing
medium shall be located outside protected spaces, in fire-extinguishing stations complying with the
requirements specified in 3.6.2.
3.6.1.9 Spare parts for fire-extinguishing systems shall be stored on board in accordance with the
system manufacturer’s requirements. The recommended number of spare parts and tools for fireextinguishing systems is given in 5.2.2.
3.6.1.10 All openings in boundaries and decks of spaces protected by a fixed gas fire-extinguishing
system, which may admit air to or allow gas to escape from the space shall be capable of being closed
from outside of the protected space.
These openings, being regarded as ventilation openings, shall be indicated by means of plate with the
symbol used on Fire Control Plan.
3.6.1.11 In piping sections, where valve arrangements introduce sections of closed piping, such
sections shall be fitted with a pressure relief valve, the outlet of the valve being led to the atmosphere.
3.6.1.12 All discharge piping 45, fittings and nozzles in the protected spaces shall be constructed of
materials having a melting temperature which exceeds 925 ºC.
Where fittings or nozzles are constructed of components/materials for which the melting temperature
is not specified, such components/materials shall be furnished with a document confirming their melting
temperature.
The piping and the associated equipment shall be adequately supported.
3.6.1.13 Pipes distributing fire-extinguishing medium into protected spaces shall be fitted with a stubpipe for connecting to compressed air used for the piping passage test.
3.6.1.14 Cargo spaces protected by gas fire-extinguishing system are not permitted to be periodically
used for the carriage of passengers.
3.6.1.15 The pipes for conveying fire-extinguishing medium may pass through accommodation spaces,
provided that they are of substantial thickness over their whole length within these spaces, are joined
only be welding without drains or other openings and that their tightness is verified with a pressure test,
after their installation, at a pressure head not less than 5 MPa. The pipes for conveying fire-extinguishing
medium shall not pass through refrigerated spaces.
3.6.1.16 At each entrance/manhole to the space protected by gas fire-extinguishing system, a warning
plate, bearing the following inscription, shall be placed:
45
Gaskets used in joints of pipelines in protected spaces need not be made from materials of melting point higher than 925°C
Fire-Extinguishing System and Inert Gas System
81
SPACE PROTECTED BY ........ GAS-FIRE-EXTINGUISHING SYSTEM
LEAVE THIS AREA IMMEDIATELY WHEN THE ......... WARNING SIGNAL IS SOUNDED.
DANGER OF SUFFOCATION
In place of dots, the name of the fire-extinguishing medium (e.g. CO2 ) and the description of the
warning signal shall be given.
The notice shall be made in red letters on a white background.
Spaces protected by gas fire-extinguishing system shall be additionally indicated by a plate, placed on
access door, with the symbol used on Fire Control Plan.
3.6.1.17 In the case of systems for which high concentration of extinguishing medium (CO2, inert gas)
is required, to prevent an excessive pressure in a space protected by a fire-extinguishing system due to
the discharge of the extinguishing medium, means shall be provided for the release of air through an
opening in the upper part of the space, e.g. ventilation dampers, machinery casing skylights. The system
operating instructions shall clearly specify the opening to be closed last after admission of the
extinguishing medium into the space.
3.6.1.18 The ship shall be provided with operating instructions for each system, prepared by the
manufacturer, containing a checklist for periodical inspections and maintenance, to be performed by the
crew. The instructions shall also contain crew safety pre-start procedures. Operating instructions shall be
displayed at the starting arrangements.
3.6.2
Fire-Extinguishing Stations
3.6.2.1 Fire-extinguishing stations are spaces intended for the storage of fire-extinguishing medium
and fire-extinguishing system equipment.
3.6.2.2 Fire-extinguishing station shall be located outside protected spaces, in a safe place and easily
accessible from crew accommodation spaces.
3.6.2.3 The boundaries and decks separating fire-extinguishing station from adjacent spaces shall have
the same fire integrity as required for control station.
3.6.2.4 Fire-extinguishing stations shall not be located forward of the collision bulkhead and shall not
be used for any other purposes than the storage of fire-extinguishing medium and fire-extinguishing
system operation.
3.6.2.5 Fire-extinguishing station shall also fulfil the following requirements:
.1 it shall be located on the open deck and have direct access from the open deck or shall be located
below the deck with access from the open deck – by means of stairways or permanently fixed
steel ladder. Entrance to the station shall be independent of the protected space;
.2 it shall be separated from adjacent spaces by gastight bulkheads and decks. All means of closing
any openings therein shall be gastight;
.3 access doors shall open outwards;
.4 it shall be provided with effective natural ventilation, with ventilation grates located in the lower
and upper parts of the space. Where the station is located below the open deck or where the
access from the open deck is not provided it shall be fitted with mechanical ventilation system
designed to take exhaust air from the bottom of the space and to provide at least 6 air changes per
hour. Ventilation ducts serving other spaces shall not be connected to the fire-extinguishing
station ventilation system.
The ventilation fan shall operate automatically by the opening of the station access door. The
operation of the fan shall be indicated by a visual signal.
The exhaust duct outlet shall be led to the open deck and shall be so located as to ensure that the
fire-extinguishing agent will not be drawn into other ventilation outlets.
82
Fire Protection
it shall be provided with thermal insulation so that the temperature inside the station does not
exceed +45 ºC. The station shall be fitted with heating if it is essential for normal operation of the
station that the temperature shall be maintained above the freezing point;
.6 means shall be provided for measuring temperature inside the station;
.7 it shall be locked; the key for the lock shall be kept in a break-glass-type closure, located near the
entrance to the station 46;
.8 it shall be provided with means of communication with central control station, navigation bridge
and machinery space;
.9 it shall be provided with fire-extinguishing system operating instructions, including pre-start
procedures;
.10 the lighting of the station shall be supplied from the main and emergency source of electric
power;
.11 the station shall be indicated by means of plate, put on access door, with the symbol used on Fire
Control Plan.
.5
3.6.2.6 Fire-extinguishing media protecting the cargo spaces may be stored in a room located forward
of the cargo spaces, but aft of the collision bulkhead, provided that both the local manual release
mechanism and remote control(s) for the release of the media are fitted and the latter is of robust
construction or so protected as to remain operable in case of fire in the protected space.
The remote controls shall be situated in the accommodation area in order to facilitate their ready
accessibility by the crew. The capability to release different quantities of fire-extinguishing media into
each of the protected spaces shall be included in the remote release arrangement.
3.6.3
Operation of the System, Warning Signalization and Time Delay
3.6.3.1 Fixed gas fire-extinguishing system shall be operated manually by means of distribution valves
fitted on the pipes conveying fire-extinguishing media into the space. Automatic release of fireextinguishing medium is not permitted, except for local fire-extinguishing systems provided as additional
to and independent of fire-extinguishing systems required for machinery spaces, fitted above the
equipment which constitute high fire risk or in high fire risk areas in machinery spaces.
3.6.3.2 In the case of systems intended for the protection of two or more spaces, the distribution valves
on the pipes conveying fire-extinguishing medium into the protected spaces shall be so marked as to
indicate clearly the spaces to which the pipes are led.
3.6.3.3 Suitable provision shall be made to prevent inadvertent release of fire-extinguishing medium
into the protected space.
3.6.3.4 Fire-extinguishing system for the protection of machinery spaces, cargo pump-rooms, ro-ro
spaces, refrigerated spaces on container ships shall be provided with manual remote controls (control
cabinets/ panels) located outside the space, and if practicable, at the exit from the space. A separate control
cabinet/panel shall be provided for each protected space, fitted with a plate bearing the name of the space.
Control cabinet/panel shall be locked; the key for the lock shall be kept in a break-glass-type closure,
located near the entrance to the control cabinet/panel 47.
Each remote control cabinet/panel of the fixed gas fire-extinguishing system shall be indicated by
means of plate with the symbol used on Fire Control Plan.
3.6.3.5 Control cabinets/panels shall be readily accessible, simple to operate and shall be grouped
together in as few locations as possible above the bulkhead deck at position(s) not likely to be cut off by
46
47
Having regard to the requirements concerning the threat of terrorist attacks on ships, other closing arrangements of the
station precluding access to the station by unauthorized persons while providing easy access thereto for the crew, without the
search for a key, are permitted.
Having regard to the requirements concerning the threat of terrorist attacks on ships, other closing arrangements of the control
cabinet/panel precluding access to these places by unauthorized persons while providing easy access thereto for the crew, without
the search for a key, are permitted.
Fire-Extinguishing System and Inert Gas System
83
a fire in a protected space. At each location there shall be provided fire-extinguishing system operating
instructions, including crew safety pre-start procedures.
3.6.3.6 Where the protected space is provided with mechanical ventilation, the opening of the control
cabinet/panel and opening the valve on the pipe conveying fire-extinguishing medium to the space shall
automatically shut off ventilating fans serving this space.
It shall not be possible to switch on ventilating fans until the control cabinet/panel is brought to its
initial condition.
Electrical system of shutting off ventilating fans shall be supplied from uninterrupted power system
(UPS).
3.6.3.7 Spaces protected by a gas fire-extinguishing system, such as machinery spaces, cargo pumprooms, ro-ro spaces, refrigerated spaces on container ships, as well as other spaces in which the crew is
normally employed or to which they have access through doors or manholes shall be fitted with visual
and audible warning signalization – alerting of the release of fire-extinguishing medium, complying with
the requirements specified in 4.3.
Conventional cargo spaces and small spaces (such as compressor rooms, paint lockers, etc.), fitted
with local fire-extinguishing system only, need not be provided with such warning signalization.
3.6.3.8 The warning signalization shall be automatically activated, e.g. by a micro-switch that activates
the signalization upon opening the control cabinet/panel. The signalization shall operate for the length of
time needed to evacuate the space, but in no case less than 20 s before the medium is released.
3.6.3.9 The release of fire-extinguishing medium into a space shall be delayed by an automatic timedelay device for the length of time needed to evacuate the space, not shorter than 20 s and not longer than
45 s.
If electrical time-delay device is used, it shall be supplied from uninterrupted power system (UPS).
3.6.3.10 Automatic time delay mechanism is not required for systems using hydrocarbon halogen
derivatives extinguishing media whose extinguishing concentration is not higher than the lowest
observed adverse effect level (LOAEL), as well as for systems using inert gases whose extinguishing
concentration is not higher than 52%, calculated for the largest space.
3.6.4
3.6.4.1
Carbon Dioxide (CO2) Systems
General Requirements
3.6.4.1.1 Carbon dioxide fire-extinguishing system is intended for the protection of machinery spaces
and cargo spaces. The quantity of carbon dioxide, (G), for particular spaces, shall be calculated from the
formula:
G = 1.79 ⋅V ⋅ϕ [kg]
where:
V – design volume of the largest space to be protected – the gross volume of the space – see the
definitions given in 1.2.41, [m3];
ϕ – filling factor:
ϕ = 0.3 – for cargo spaces (conventional cargo spaces);
ϕ = 0.35 – for machinery spaces, and for machinery spaces with casings the volume of which
includes the volume of casings;
ϕ = 0.4 – for machinery spaces with a casing, the volume of which does not include the volume
of casings above the level, at which the horizontal section area of the casing does not
exceed 40% of the machinery space area, taken midway between the tank top and the
lowest part of the casing;
ϕ = 0.45 – for vehicle and ro-ro spaces capable of being sealed.
Note: For machinery spaces with casings, such value of ϕ shall be taken for which G is greater.
84
Fire Protection
For cargo ships of less than 2000 gross tonnage, the 0.35 and 0.4 ϕ values may be reduced to 0.3 and
0.35, respectively. If two or more machinery spaces are not entirely separate, they shall be considered as
forming one space.
3.6.4.1.2
The total quantity of CO2 on board shall be sufficient for the protection of the largest space.
For machinery spaces, the piping system shall be such that 85% of the required quantity of
3.6.4.1.3
gas can be discharged into the space within not longer than 2 min.
3.6.4.1.4
For vehicle and ro-ro spaces capable of being sealed, the piping system shall be such that at
least 2/3 of the required quantity of gas can be discharged into the space within not longer than 10 min.
3.6.4.1.5 For container and general cargo spaces (primarily intended to carry a variety of cargoes
separately secured or packed), the fixed piping system shall be such that at least two-thirds of the carbon
dioxide can be discharged into the space within 10 min.
For solid bulk cargo spaces, the fixed piping system shall be such that at least two-thirds of the carbon
dioxide can be discharged into the space within 20 min.
The system controls shall be so arranged as to allow one-third, two-thirds or the entire quantity of
carbon dioxide to be discharged based on the loading condition of the hold.
3.6.4.1.6 CO2 discharge time for each protected spaces shall be checked by calculations to be enclosed
with CO2 fire-extinguishing system classification documentation.
3.6.4.2
Means of Control
3.6.4.2.1 Carbon dioxide fire-extinguishing system shall be operated in accordance with the
requirements specified in 3.6.3 and the requirements set forth in this sub-chapter.
3.6.4.2.2 Remote controls of carbon dioxide fire-extinguishing system intended for the protection of
machinery spaces, cargo pump-rooms, ro-ro spaces, refrigerated spaces on container ships, spaces to
which the crew have access through doors or manholes (except conventional cargo spaces and small
spaces, see 3.6.3.7) and spaces in which the crew normally work and to which they have access shall
fulfil the following requirements:
.1 two separate controls shall be provided for releasing carbon dioxide into a protected space and to
ensure the activation of the warning signalization 48. One control shall be used for opening the valve of
the piping which conveys gas into the protected space and the other control shall be used to discharge
gas from its storage containers. Positive means shall be provided so that they can only be operated in
that order. The positive means shall be achieved by a mechanical and/or electrical interlock that does
not depend on any operational procedure to achieve the correct sequence of operation. Where
electrical interlock is used, it shall be supplied from uninterrupted power supply (UPS);
.2 the two controls shall be located inside a release cabinet clearly identified for the particular space.
If the cabinet containing the controls is to be locked, a key to the cabinet shall be in a breakglass-type closure conspicuously located adjacent to the cabinet.
3.6.4.2.3 Pneumatic release cabinet shall consist of the main and the spare pilot cylinders, control
devices and pilot line pipes. The capacity of each pilot cylinder shall be such as to ensure the opening of
remotely controlled valves, at the most unfavourable ambient temperature.
Pilot line pipelines shall be made of steel, be welded or connected by mechanical joints and shall not
be led through spaces/areas close to arrangements where they be may subjected to damage.
48
The warning signalization may be activated before the two separate system release controls are operated (e.g. by a micro-switch that
activates the signalization upon opening the release cabinet door, see 3.6.3.8). The two separate controls for releasing carbon
dioxide into the protected space (one control to open the valve of the piping which conveys gas into the protected space and a
second control used to discharge the gas from its storage containers) can be independent of the controls activating the warning
signalization. Separate activation of the warning signalization is considered sufficient. However, having regard to the safety of
persons present in the protected space, it is recommended that the warning signalization should be also automatically activated in
the event of emergency operation of the system from fire-extinguishing station after opening the valve in the piping which conveys
CO2 to a protected space in the event of damage to release cabinet, see 3.6.4.6.2.
Fire-Extinguishing System and Inert Gas System
85
3.6.4.2.4 In addition to remote control, provision shall be made for manual operation of the system
from fire-extinguishing station, by manual opening of each valve of the piping which conveys gas into
the protected space and each cylinder valve.
3.6.4.3
CO2 Cylinders
3.6.4.3.1 The total quantity of CO2, calculated for the largest protected space, shall be stored in
cylinders. The number of cylinders shall be specified with due regard to cylinder typical volume (80 l, 67
l, 45 l) and the filling ratio (i.e. the quantity of CO2 per 1 l of the cylinder volume), which shall not
exceed 0.67 kg/l – for the cylinder of the design pressure 12.5 MPa and 0.75 kg/l – for the cylinder of
design pressure 15 MPa and over.
It is recommended that the quantity of CO2 in the cylinder should be not greater than 45 kg and the
filling ratio – not greater than 0.67 kg/l.
All cylinders in the fire-extinguishing station shall be of the same size.
3.6.4.3.2 The cylinders in fire-extinguishing stations shall be positioned vertically in rows on insulation
pads which may be made of wood.
The cylinders shall be accessible for inspection and for checking the amount of carbon dioxide
contained therein. Each cylinder shall be painted red and numbered.
3.6.4.3.3 Cylinders shall be fitted with relief valves or bursting disks, operating or bursting at a
pressure rise in the cylinders to 1.3 p (±0.1 %), where p means the cylinder design pressure.
Where the fire-extinguishing station is located below the open deck, carbon dioxide from the relief
valves or bursting disks shall be discharged to the atmosphere by a special pipe.
The relief valve vents shall be so located as the ensure that gas is not drawn back into other
ventilation intakes.
3.6.4.3.4 CO2 cylinders shall fulfil the requirements of ISO 9809 and ISO 3500 or the relevant national
standards. Each cylinder shall be furnished with PRS certificate.
3.6.4.3.5 Each CO2 cylinder shall be connected to a manifold by a flexible hose and a non-return valve.
The non-return value shall be so located on the manifold as to allow disconnection of a single cylinder,
without affecting the system operation. The flexible hose shall withstand the maximum pressure in CO2
cylinder and shall be type-approved in accordance with the requirements specified in sub-chapter
1.16.12, Part VI – Machinery Installations and Refrigerating Plants.
3.6.4.4
Pipes, Fittings and CO2 Discharge Nozzles
3.6.4.4.1 The main CO2 pipeline from cylinders up to and including distribution valves – the so-called
manifold shall be designed for a nominal working pressure of 10 MPa and shall be made of seamless
steel pipes certified by PRS. Distribution valves shall be made from steel and shall be flange type.
The remaining CO2 pipelines shall also be made from steel seamless pipes, but may be furnished with
the steel mill certificate.
The pipe wall thickness shall comply with Table 1.16.3.1-1, Part VI – Machinery Installations and
Refrigerating Plants.
3.6.4.4.2 CO2 manifold shall be fitted with a pressure gauge, a stub-pipe (with a non-return valve) for
blowing the pipes with compressed air and safety valve. The safety valve opening pressure shall be 13
MPa and the flow area of the valve shall enable the discharge of excess CO2 to the atmosphere without
causing overpressure of the manifold.
Where the fire-extinguishing station is located below the open deck, CO2 discharge from the safety
valve shall be led to the atmosphere by a special pipe.
The safety valve vents shall be so located as the ensure that CO2 is not drawn back into other
ventilation intakes.
86
Fire Protection
3.6.4.4.3 Carbon dioxide shall be discharged into protected spaces through discharge nozzles. The
number and arrangement of the nozzles in the protected space shall be such as to ensure uniform
distribution of carbon dioxide in the space. Discharge nozzles shall be made of steel or steel equivalent
material.
3.6.4.4.4 In machinery spaces and boiler rooms, the nozzles shall be arranged having regard to the
arrangement of the machinery and equipment which constitute fire risk. The nozzles shall be preferably
located in the lower part of the space, above the machinery which pose fire risk and below floor, for the
protection of the bilges.
Nozzles shall also be fitted in the engine casing if equipment of increased fire risk, e.g. oil-fired
boilers, is arranged there.
Nozzles shall not be placed over escape routes or ladders provided to allow ease of evacuation of the
space.
3.6.4.4.5 In cargo spaces, CO2 nozzles shall be located in upper part of the space.
If CO2 system is connected with a sample extraction smoke detection system, the nozzles shall be so
arranged that no part of the overhead deck area is more than 12 m horizontally away from a nozzle. The
sample extraction smoke detection system shall fulfil the requirements specified in sub-chapter 4.2. In
cargo space where ‘tween deck panels (movable stowage platforms) are provided, the nozzles shall be
located in both the upper and lower upper parts of the cargo space.
3.6.4.4.6 Water traps during CO2 pipes fitting, which can allow water to accumulate, shall be avoided.
Where this is not possible, a short run off piece with a drain plug shall be fitted in the lowest points.
3.6.4.4.7 On the main pipeline conveying CO2 to the spaces in which the crew is normally employed or
to which they have access, an adjustable flange with position indicator shall be installed before manifold
to cut the flow of CO2 to the spaces during the system inspection and tests.
3.6.4.5
Fire-Extinguishing Stations (for the Storage of CO2 Cylinders)
3.6.4.5.1 Fire-extinguishing stations shall fulfil the requirements of 3.6.2 and additionally with the
requirements, given below:
.1 they shall be provided with thermal insulation and ventilation so constructed that the temperature
inside the station does not exceed +49 ºC – for cylinders with filling factor 0.67 and +40 ºC – for
cylinders with filling factor 0.75;
.2 provision shall be made for monitoring the air temperature in the fire-extinguishing station from
outside the station. If this is to be a thermometer, it shall be so fitted in the station as to be visible
both from the inside of the station and, through a sidescuttle, from outside of the station.
3.6.4.5.2 Fire-extinguishing station shall be provided with the system operating manual containing the
system diagram, pipelines distributing CO2 to particular protected machinery/cargo spaces, properly
marked distribution valves and the system operation remote controls means. In addition, the manual shall
contain the following information:
.1 the required quantity of CO2 [kg] for the protection of the largest space and the required total
number of CO2 cylinders in the station;
.2 the number of CO2 cylinders required to distribute CO2 to each protected machinery space, served
by separate pipe sections with distribution valves;
.3 safety procedures for the crew 49;
.4 list of openings which shall be closed in order to seal each protected before discharge of CO2 to
the space;
.5 proceedings in the case of emergency operation of the system directly from the fire-extinguishing
system if remote operation directly from release cabinet is not possible;
49
The procedures shall contain information stating that during periodical tests of the system, having in mind the safety of the
persons who may present in the protected spaces, the manifold with the connected CO2 cylinders shall be fitted with
adjustable flange (if provided) or be disconnected from the pipelines distributing CO2 to the spaces.
Fire-Extinguishing System and Inert Gas System
.6
.7
87
proceedings to be followed by the crew after the use of CO2 system;
actions to be taken to make the system operable after fire suppression.
3.6.4.5.3 The CO2 system operating manual for the protection of cargo spaces (holds) shall additionally
specify the number of cylinders required for the protection of each cargo space (hold) for the following
conditions:
.1 the cargo space (hold) is empty;
.2 the cargo space (hold) is 50% loaded;
.3 the cargo space (hold) is 100% loaded.
3.6.4.6
Warning Signalization and Time Delay
Spaces protected by the CO2 system in which personnel normally work or to which they
3.6.4.6.1
have access shall be provided with warning signalization, see 3.6.3.7 and 3.6.3.8.
It is recommended that additionally the warning signalization should be also automatically
3.6.4.6.2
activated in the event of emergency operation of the system from fire-extinguishing station after opening
the valve in the piping which conveys CO2 to a protected space.
3.6.4.6.3 The release of CO2 into the space in which personnel normally work or to which they have
access shall be delayed by means of automatic time-delay device, see 3.6.3.9.
3.6.4.7
The System Testing
After the system has been installed on board, accepted and pressure tested within the scope and at the
pressure specified in Table 3.11, the following shall be performed:
.1 all CO2 pipes and nozzles shall be blown through using compressed air or nitrogen;
.2 operation test of the warning signalization shall be performed.
The guidelines for periodical inspections and tests of the CO2 system are given in MSC.1/Circ.1318.
3.6.5
3.6.5.1
Low Pressure Carbon Dioxide Systems
General Requirements
3.6.5.1.1 Low pressure carbon dioxide system with regard to: the required amount of carbon dioxide,
time of discharge into the protected spaces, location of discharge nozzles in the protected spaces and CO2
warning signalization – shall fulfil the requirements specified in 3.6.4. Additionally, the system shall
fulfil the requirements of this sub-chapter.
3.6.5.1.2 CO2 storage tanks, refrigerating units, control devices and other equipment of the system shall
be located in the same space, in accordance with the requirements for fire-extinguishing station specified
in 3.6.4.5.
3.6.5.2
CO2 Storage Tanks
3.6.5.2.1 The required amount of liquid carbon dioxide shall be stored in tank(s) under a working
pressure in the range of 1.8 – 2.2 MPa. The normal liquid charge in the tanks shall be limited to provide
sufficient vapour space to allow for the expansion of the liquid carbon dioxide under the maximum
storage temperature that can be obtained corresponding to the setting of the pressure relief valves but it
shall not exceed 95% of the volumetric capacity of the tank.
3.6.5.2.2 Carbon dioxide storage tank shall be designed, constructed and tested in accordance with the
requirements of Part VII – Machinery, Boilers and Pressure Vessels. The tank shall be fitted with:
.1 a pressure gauge;
.2 high pressure alarm – not higher than the setting of the safety relief valve;
.3 low pressure alarm – not less than 1.8 MPa;
.4 branch pipes with stop valves for filling the tank;
.5 discharge pipes;
88
Fire Protection
.6
.7
.8
a liquid CO2 level indicator;
two safety relief valves;
an alarm device signalling the minimum level (stock) of carbon dioxide.
3.6.5.2.3 The two safety relief valves shall be so arranged that either valve can be shut off while the
other is connected to the tank. The setting of the relief valves shall not be less than 1.1 times the working
pressure. The capacity of each valve shall be such that the vapours generated under fire condition can be
discharged with a pressure rise not more than 20% above the setting pressure. The discharge from the
safety valves shall be led to the atmosphere.
3.6.5.2.4 The tank(s) and outgoing pipes permanently filled with carbon dioxide shall have thermal
insulation preventing the operation of the safety relief valve in 24 h after de-energizing the plant, at
ambient temperature of 45oC and an initial pressure equal to the starting pressure of the refrigerating unit.
The insulating materials and their liners shall have adequate mechanical properties, fire resistance and
protection against penetration of water vapours – subject to PRS’ approval.
3.6.5.3
Refrigerating Units of CO2 Tank
3.6.5.3.1 The tank shall be serviced by two automated completely independent refrigerating units
solely intended for this purpose, each comprising a compressor (with its prime mover), evaporator and
condenser.
In the event of failure of either one of the refrigerating units, the other shall be actuated automatically.
Provision shall be made for local manual control of the refrigerating plant.
3.6.5.3.2 Refrigerating units shall fulfil the requirements specified in Chapter 21, Part VII – Machinery
Installations and Refrigerating Plants. The refrigerating capacity and automatic control of each unit shall
be so as to maintain the required temperature under conditions of continuous operation during 24 h at sea
temperatures up to 32oC and ambient temperatures up to 45oC.
3.6.5.3.3 Each electric refrigerating unit shall be supplied from the main switchboard busbars by a
separate feeder.
3.6.5.3.4 Cooling water supply to the refrigerating plant (where required) shall be provided from at
least two circulating pumps, one of which being used as a stand-by. The stand-by pump may be a pump
used for other services so long as its use for cooling would not interfere with any other essential service
of the ship. Cooling water shall be taken from not less than two sea connections, preferably one port and
one starboard.
3.6.5.4
Pipes, Fittings and CO2 Discharge Nozzles
3.6.5.4.1 The pipes, valves and fittings shall fulfil the requirements for a design pressure not less than
the design pressure of the CO2 tanks.
3.6.5.4.2 Safety relief devices shall be provided in each section of the pipe that may be isolated by
block valves and in which there could be a build-up of pressure in excess of the design pressure of any of
the components.
3.6.5.4.3 The piping system shall be so designed that the pressure at the nozzles will be not less than 1
MPa. The pipes, fittings and discharge nozzles shall fulfil the requirements specified in 3.6.4.4.
3.6.5.4.4 Pipe connections shall be provided on the open deck on the port and starboard sides for filling
CO2 tanks. The pipes shall be fitted with valves allowing to equalize pressure during filling the CO2 tank.
3.6.5.5
Alarms
Audible and visual alarms shall be given in permanently manned control station when:
Fire-Extinguishing System and Inert Gas System
.1
.2
.3
3.6.5.6
89
the pressure in the tank reaches the low or high value specified in 3.6.5.2.1;
any one of the refrigerating units fails to operate;
the lowest permissible level of CO2 in the tank is reached.
Release Control
3.6.5.6.1 The release of CO2 shall be initiated manually. The means of control shall fulfil the
requirements specified in 3.6.4.2.
3.6.5.6.2 If the system serves more than one space, means for control of discharge quantities of CO2
shall be provided, e.g. automatic timer or accurate level indicators located at the control position.
3.6.5.6.3 If a device is provided which automatically regulates or stops the discharge of the rated
quantity of carbon dioxide into the protected spaces, it shall also be possible to regulate the discharge
manually.
3.6.5.7
The System Testing
After having been assembled on board, the system shall be subjected to acceptance tests and other
tests in accordance with the approved test programme. The scope of the tests shall include refrigerating
unit operation tests and the requirements specified in 3.6.4.7.
3.6.6
Local Carbon Dioxide Fire-Extinguishing Systems in Machinery Spaces
3.6.6.1 In well-grounded cases, local CO2 fire-extinguishing systems may be located in machinery
spaces where the crew is normally employed for extinguishing fire of internal combustion engines
silencers and pipes.
3.6.6.2 The maximum number of CO2 cylinders located in the machinery space shall be such that CO2
concentration in the space after its emergency release does not exceed 5% of the gross volume, i.e.
concentration safe for the persons in the space. A greater number of CO2 cylinders is permitted, provided
that carbon dioxide from CO2 cylinder safety valves is discharged to the atmosphere by a special pipe
fitted with an audible signalling device.
3.6.6.3 Local CO2 fire-extinguishing system shall consist of CO2 cylinder, manifold and pipelines,
with isolating valves, conveying carbon dioxide to particular protected spaces and connected to discharge
nozzle. The manifold shall be fitted with a pressure gauge and a stub-pipe for blowing the pipes with
compressed air.
3.6.6.4 The location of the CO2 cylinder and the system remote operation position shall be indicated by
means of plate with the symbol used on Fire Control Plan.
3.6.6.5
3.6.7
Operating instructions of the system shall be placed close to the system operation position.
Steam Fire-Extinguishing Systems
3.6.7.1 The use of steam as a fire-extinguishing medium in fixed fire-extinguishing systems required
by the present Part of the Rules is not permitted. Steam fire-extinguishing system, approved by PRS, may
be used only in restricted areas as an addition to the required fixed fire-extinguishing systems.
3.6.7.2 The boiler supplying steam shall have an evaporation of at least 1 kg of steam per hour for each
0.75 m3 of the gross volume of the largest space so protected. Additionally, the system is subject to PRS’
consideration with respect to its reliability and fire-extinguishing efficiency.
3.6.7.3 The boiler shall ensure a continuous supply of steam with the required capacity under normal
service conditions.
90
3.7
Fire Protection
Equivalent Fixed Gas Fire-Extinguishing Systems
3.7.1
Equivalent Fixed Gas Fire-Extinguishing Systems for Machinery Spaces and Cargo PumpRooms
Guidelines for the design, assembly and type approval tests of the system are specified in Publication
No. 89/P.
3.7.2
Aeorosol Fire-Extinguishing System for Machinery Spaces
Guidelines for the design, assembly and type approval tests of the system are specified in Publication
No. 89/P.
3.8
Dry Powder Fire-Extinguishing System
3.8.1
3.8.1.1
General Requirements
Nitrogen or other type of inert gas may be used as the powder carrier.
3.8.1.2 The system shall consist of:
.1 fire-extinguishing stations, where powder containers, gas (powder carrier) pressure vessels and
distribution manifolds are stored;
.2 fire control stations, where starting cylinders, fire hose nozzles with hoses or powder monitors
are stored;
.3 pipings and fittings for the activation of the system and for the powder supply to fire control
stations.
3.8.1.3 Remote activation of the system from any one of the fire control stations shall be ensured.
The system shall be ready to operate not later than 30 s from the opening of starting cylinder at the
remotest, from the fire-extinguishing station, fire control station.
3.8.1.4 Powder shall be furnished with quality certificate issued by an authorized body or
manufacturer.
3.8.2
Quantity of the Powder and Gas (Powder Carrier), as well
as the Number and Capacity of Fire Hose Nozzles and Monitors
3.8.2.1 In each container stored in the fire-extinguishing station, there shall be a design quantity of
powder adequate for a continuous operation during at least 45 s of all fire hose nozzles and monitors
connected to one station, at their rated capacity.
3.8.2.2 The capacity of each fire hose nozzle shall not be less than 3.5 kg/s and the distance of powder
coverage not less than 8 m. When determining the maximum distance of coverage of a fire hose nozzle,
the length of the hose shall be taken into account.
The capacity of each monitor shall not be less than 10 kg/s; 10, 30 and 40 m shall be taken as the
maximum distances of powder discharge for the monitors of 10, 25 and 45 kg/s capacity, respectively.
3.8.2.3 The quantity of powder for the protection of control stations and store-rooms of readily ignitable
materials shall be such as to ensure a continuous operation of the system during at least 10 s at the
discharge rate of 0.1 kg/m3 per one second.
3.8.2.4 The quantity of gas (powder carrier) shall be sufficient for a single discharge of the total
quantity of powder in the container.
3.8.3
Fire-Extinguishing Stations of Dry Powder System
If two or more fire control stations are connected to the fire-extinguishing station, each of them shall
be supplied from the powder manifold by an independent pipe fitted with a valve.
Fire-Extinguishing System and Inert Gas System
91
The fire-extinguishing station arrangements shall enable the operation of both the individual fire
control stations and all the stations simultaneously.
Fire-extinguishing stations containing powder container shall be indicated by means of plate with the
symbol used on Fire Control Plan.
3.8.4
Fire Control Stations
3.8.4.1 Each fire control station shall be provided with the following:
– a fire hose nozzle;
– a rigid, non-kinkable hose up to 33 m in length;
– cylinders for remote activation of the system;
or alternatively:
– a monitor;
– cylinders for remote activation.
3.8.4.2
locker.
The fire control station equipment, except for the monitor, shall be stored in a watertight box or
3.8.4.3
The fire hose nozzle shall be equipped with a device for the opening and closing the passage.
3.8.4.4 The passage area of the fire hose nozzle shall be equal to the hose passage area or less, but not
more than by 50%.
3.8.4.5
Starting cylinders shall be equipped with pressure gauges.
3.8.4.6
The system activation instructions shall be available at the fire control station.
3.8.4.7 Each fire control station (dry powder system remote control position) shall be indicated by a
plate with the symbol used on Fire Control Plan.
3.8.5
Containers, Pipings and Fittings
3.8.5.1 Container shall be provided with a scarfed pipe with its end being at a distance of about 100
mm from the container bottom.
3.8.5.2 Arrangement for the supply of gas to the lower part of the container shall be provided with a device
preventing the powder from penetrating into the gas piping.
3.8.5.3
The powder filling ratio shall not exceed 0.95.
3.8.5.4 The pipings and fittings of the system shall not have contractions or sudden increase of the
passage area.
3.8.5.5 The cross-sectional area of the manifold in the fire-extinguishing station shall not be less than
the sum and not greater than the double sum of the sectional areas of pipings connected to the manifold
through which the powder may be simultaneously supplied.
3.8.5.6 The distributing manifold of the system in the fire-extinguishing station shall be provided with
means for blowing through the pipes after the use of the system.
3.8.5.7 The bending radius of the powder system pipings shall not be less than 10 d, where d is the
outer diameter of the pipe.
3.8.5.8 To spaces such as emergency power units rooms, emergency fire pump rooms, as well as storerooms, garages and hangars, the powder shall be delivered by means of spray nozzles, the design,
number and arrangement of which shall ensure an uniform powder coverage throughout the space. The
pressure at the most remote spray nozzles shall be equal to at least the minimum pressure sufficient for
an effective powder coverage.
92
3.9
3.9.1
Fire Protection
Fixed Deck Foam System (for Use in Tankers)
General Requirements
3.9.1.1 The system shall consist of foam concentrate tank, water supply pump, foam pump and foam
proportioner, water supply pipes, as well as foam monitors and manual foam applicators.
Generally, the deck foam systems shall be designed for low-expansion foam; however, after
appropriate tests, medium-expansion foam may be permitted. Definitions relating to foam system – see
3.5.2.
3.9.1.2 The arrangements for generating foam shall be capable of delivering foam to the entire cargo
tanks area, as well as into any cargo tank, the deck of which has been ruptured.
3.9.1.3
The deck foam system shall be capable of simple and rapid operation.
3.9.1.4 The deck foam system and the water fire main system can be supplied from the common line.
However, operation of the deck foam system at its required output shall permit the simultaneous use of the
minimum required jets of water at the required pressure from the fire main on the open deck over the full
length of the ship in accommodation spaces, service spaces, control stations and machinery spaces.
If the deck foam system and the water fire main system are to be supplied from the common line,
additional foam concentrate shall be provided for operation of 2 hose nozzles for the same period of time
as is required for the foam system.
A common line for the water fire main system and deck foam system can only be accepted if it can be
demonstrated that the hose nozzles can be effectively controlled by one person when supplied from the
common line at a pressure needed for operation of the monitors.
3.9.1.5 The main control station for the system shall be suitably located outside the cargo area, in the
vicinity of the accommodation spaces and readily accessible and operable in the event of fire in the areas
protected.
The location of the main control station of the deck foam system shall be indicated by means of plate
with the symbol used on Fire Control Plan.
3.9.1.6 The major foam system equipment, such as the foam concentrate tanks and the pumps shall be
located outside cargo area but may be located in the machinery space.
The location of the foam concentrate tanks shall be indicated by a plate with the symbol used on Fire
Control Plan.
3.9.1.7 Means shall be provided for the crew to safely check the quantity of foam concentrate in the
tanks and taking the foam concentrate samples for the periodical checking of its quality. The minimum
level/required quantity of foam concentrate shall be marked on the tank.
3.9.2
Foam Concentrate Requirements
3.9.2.1 For tankers carrying:
.1 crude oil or petroleum products having a flash-point not exceeding 60 °C (closed cup test), as
determined by an approved flash-point apparatus, and a Reid vapour pressure which is below
atmospheric pressure or other liquid products of similar fire-hazard, including the cargoes listed
in Chapter 18 of the IBC Code having a flash-point not exceeding 60 °C (closed cup test) for
which a regular foam fire-extinguishing system is effective; or
.2 petroleum products having a flash-point exceeding 60 °C (closed cup test), as determined by an
approved flash-point apparatus; or
.3 products listed in Chapter 17 of the IBC Code having a flash-point exceeding 60 °C (closed cup
test), as determined by an approved flash-point apparatus;
the rate of supply of foam solution shall not be less than the greatest of the following:
Fire-Extinguishing System and Inert Gas System
a)
b)
c)
93
0.6 l/min per square metre of cargo tanks deck area, where cargo tanks deck area means the
maximum breadth of the ship multiplied by the total longitudinal extent of the cargo tank spaces;
or
6 l/min per square metre of the horizontal sectional area of the single tank having the largest such
area; or
3 l/min per square metre of the deck area protected by the largest monitor, such area being
entirely forward of the monitor, however not less than 1250 l/min.
3.9.2.2 For tankers carrying chemicals in bulk, listed in Chapter 17 of the IBC Code, having a flashpoint not exceeding 60 °C (closed cup test), the rate of supply of foam solution shall be as specified
6.12.4.6 (according to IBC Code).
3.9.2.3 Sufficient foam concentrate shall be supplied to ensure at least 20 min of foam generation – in
tankers fitted with inert gas installation or 30 min of foam generation – in tankers not fitted with inert gas
installation or when inert gas installation is not required.
If the deck foam system and the water fire main system are to be supplied from the common line,
additional foam concentrate shall be provided on board, see 3.9.1.3.
3.9.2.4 Foam concentrate used in the foam system shall be type-approved in accordance with
MSC/Circ. 1312/Corr.1 and shall be suitable for extinguishing the flammable cargoes carried. For
extinguishing crude oil, petroleum products and non-polar solvents, type B foam concentrates shall be
used. Type A foam concentrates (alcohol resistant) shall be used for extinguishing polar solvents, listed
in Chapter 17 of the IBC Code.
Only one type of foam concentrate shall be used on board and it shall be effective for extinguishing
the greatest possible amount of the cargoes carried.
For cargoes for which foam is not effective or is not compatible, additional fire protection shall be
provided in accordance of the IBC Code.
3.9.2.5 Liquid cargoes having a flash-point not exceeding 60 °C for which regular foam is not effective
shall be fire protected in accordance with the IBC Code.
3.9.2.6 When carrying biofuel blends containing more than 5 per cent of ethyl alcohol, type A foam
concentrates (alcohol resistant) shall be used.
3.9.3
Monitors and Foam Applicators
3.9.3.1 Foam from the fixed deck foam system shall be supplied by means of monitors and foam
applicators.
At the system acceptance on board, tests of foam monitors and applicators shall be performed to
ensure that the foam expansion ratio and drain time do not differ by more than ± 10% from the values
required for the used foam, specified in 3.9.2.4. If medium-expansion foam is used in the fireextinguishing system (expansion ratio between 21 and 200), the foam solution supply rate and the
capacity of monitors shall be specified for the given ship separately in each particular case.
At least 50% of the required foam solution supply rate shall be delivered from each monitor.
In tankers of less than 4000 tonnes deadweight, installation of monitors may not be required and the
use of applicators only may be permitted. However, in such case the capacity of each applicator shall be
at least 25% of the required foam solution supply rate.
3.9.3.2 The number and position of monitors shall be such as to comply with the requirements
specified in 3.9.1.2.
3.9.3.3 The distance from the monitor to the farthest extremity of the protected area forward of that
monitor shall not bemore than 75 % of the monitor throw in still air conditions.
3.9.3.4 The monitors and hose connections for a foam applicators shall be situated both port and
starboard at the front of the poop or accommodation spaces facing the cargo tanks deck.
94
Fire Protection
The monitors and hose connections shall be aft of any cargo tanks, but may be located in the cargo
area above pump-rooms, cofferdams, ballast tanks and void spaces adjacent to cargo tanks if capable of
protecting the deck below and aft of each other.
In tankers of less than 4000 tonnes deadweight, a hose connection for a foam applicator shall be
situated both port and starboard at the front of the poop or accommodation spaces facing the cargo tanks
deck.
3.9.3.5 Applicators shall be provided to ensure flexibility of action during fire-fighting operations and
to cover areas screened from the monitors.
3.9.3.6 The capacity of any applicator shall not be less than 400 l/min and the applicator throw in still
air conditions shall not be less than 15 m.
3.9.3.7 Each tanker shall be provided with at least four applicators in accordance with 3.9.3.6. The
number and arrangement of hose connections for a foam applicator shall be such that foam from at least
two applicators can be directed on to any part of the cargo tanks deck area.
The requirements of the present paragraph are applicable to all tankers, regardless of their size.
The location of each foam applicator shall be indicated by means of plate with the symbol used on
Fire Control Plan.
3.9.4
Isolating Valves
Valves shall be provided in the foam main and in the water fire main when this is an integral part of
the deck foam system, immediately forward of any monitor position to isolate damaged sections of those
mains.
The location of each isolating valve of the foam system shall be indicated by means of plate with the
symbol used on Fire Control Plan.
3.10
Inert Gas System (for Use in Tankers) 50
3.10.1
Definitions
The below definitions apply to this subchapter:
.1 Cargo tanks – those cargo tanks, including slop tanks, which carry cargoes, or cargo residues,
having a flashpoint not exceeding 60ºC.
.2 Inert gas system – includes inert gas systems using flue gas, inert gas generators, and nitrogen
generators and means the inert gas plant and inert gas distribution together with means for
preventing backflow of cargo gases to machinery spaces, fixed and portable measuring instruments
and control devices.
.3 Gas-safe space – a space in which the entry of gases would produce hazards with regard to
flammability or toxicity.
.4 Gas-free – a condition in a tank where the content of hydrocarbons or other flammable vapours is
less than 1% of the lower flammable limit (LFL), the oxygen content is at least 21%, and no toxic
gases are present 51
3.10.2
3.10.2.1
Requirements for All Systems
General
3.10.2.1.1 The inert gas system shall be designed to be capable of rendering and maintaining the
atmosphere of the relevant cargo tanks non-flammable52.
50
Requirements for inert gas system specified in his subchapter apply to the chips constructed on or after 1 January 2016. In
ships constructed before that date, the inert gas system shall comply with the requirements of Chapter 15 of the FSS Code,
adopted by Resolution MSC. 98(73).
51
Refer to the Revised recommendations for entering enclosed spaces aboard ships (resolution A.1050(27)).
52
Refer to the Revised standards for the design, testing and locating of devices to prevent the passage of flame into cargo tanks
in tankers (MSC/Circ.677, as amended by MSC/Circ.1009 and MSC.1/Circ.1324) and the Revised factors to be taken into
consideration when designing cargo tank venting and gas-freeing arrangements (MSC/Circ.731).
Fire-Extinguishing System and Inert Gas System
95
The inert gas system shall be designed, constructed and tested in accordance with guidelines specified in
MSC/Circ. 353, MSC/Circ. 387, as well as MSC/ Circ.450/Rev.1. Additionally, the system shall comply with
the requirements of this subchapter.
3.10.2.1.2 The system shall be capable of:
.1 inerting empty cargo tanks and maintaining the atmosphere in any part of the tank with an
oxygen content not exceeding 8% by volume and maintaining steadily positive pressure in port
and at sea except when it is necessary for such a tank to be gas-free;
.2 eliminating the need for air to enter a tank during normal operations except when it is necessary
for such a tank to be gas-free;
.3 purging empty cargo tanks of hydrocarbon or other flammable vapours, so that subsequent gasfreeing operations will at no time create a flammable atmosphere within the tank;
.4 delivering inert gas to the cargo tanks at a rate of at least 125% of the maximum rate of the ship cargo
pumps expressed as a volume. For chemical tankers and chemical/product tankers, inert gas systems
having a lower delivery capacity may be accepted, provided that the maximum rate of discharge of
cargoes from cargo tanks being protected by the system is restricted to not more than 80% of the inert
gas capacity; and;
.5 delivering inert gas with an oxygen content of not more than 5% by volume to the cargo tanks at
any required rate of flow.
3.10.2.1.3
Materials used in inert gas systems shall be suitable for their intended purpose. In
particular, those components which may be subjected to corrosive action of the gases and/or liquids, such
as exhaust gas scrubbers, blowers, non-return devices, drain pipes from exhaust gas scrubbers, and other
drain pipes are to be either constructed of corrosion-resistant material or lined with rubber, glass fibre
epoxy resin or other equivalent coating material.
3.10.2.1.4 The inert gas supply may be :
.1 treated flue gas from main or auxiliary boilers,
.2 gas from an oil or gas-fired gas generator, or
.3 gas from nitrogen generators.
PRS may accept systems using inert gases from one or more separate gas generators or other sources or
any combination thereof, provided that an equivalent level of safety is achieved. Such systems shall, as
far as practicable, comply with the requirements of this chapter. Systems using stored carbon dioxide
shall not be permitted due to the risk of ignition from generation of static electricity by the system itself.
3.10.2.2
Safety Measures.
3.10.2.2.1 The inert gas system shall be so designed that the maximum pressure which it can exert on
any cargo tank will not exceed the test pressure of any cargo tank.
3.10.2.2.2 Automatic shutdown of the inert gas system and its component parts shall be arranged on
predetermined limits being reached, taking into account the requirements of paragraphs 3.10.2.5, 3.10.3.7
and 3.10.4.2.
3.10.2.2.3
plant.
Suitable shutoff arrangements shall be provided on the discharge outlet of each generator
3.10.2.2.4 The system shall be designed to ensure that if the oxygen content exceeds 5% by volume,
the inert gas shall be automatically vented to atmosphere.
3.10.2.2.5 Arrangements shall be provided to enable the functioning of the inert gas plant to be
stabilized before commencing cargo discharge. If blowers are to be used for gas-freeing, their air inlets
shall be provided with blanking arrangements.
3.10.2.2.6 Where a double block and bleed valve is installed, the system shall ensure upon of loss of
power, the block valves are automatically closed and the bleed valve is automatically open.
96
3.10.2.3
Fire Protection
Non-return Devices
3.10.2.3.1 At least two non-return devices shall be fitted in order to prevent the return of vapour and
liquid to the inert gas plant, or to any gas-safe spaces.
3.10.2.3.2 The first non-return device shall be a deck seal of the wet, semi-wet, or dry type or a doubleblock and bleed arrangement. Two shut-off valves in series with a venting valve in between, may be
accepted provided:
.1 the operation of the valve is automatically executed. Signal(s) for opening/closing is (are) to be
taken from the process directly, e.g. inert gas flow or differential pressure; and
.2 alarm for faulty operation of the valves is provided, e.g. the operation status of "blower stop" and
"supply valve(s) open" is an alarm condition.
3.10.2.3.3 The second non-return device shall be a non-return valve or equivalent capable of
preventing the return of vapours and liquids and fitted between the deck water seal (or equivalent device)
and the first connection from the inert gas main to a cargo tank. It shall be provided with positive means
of closure. As an alternative to positive means of closure, an additional valve having such means of
closure may be provided between the deck water seal and the first connection from the inert gas main to
the cargo tanks to isolate the deck water seal, or equivalent device, from the inert gas main to the cargo
tanks.
3.10.2.3.4 A water seal, if fitted, shall be capable of being supplied by two separate pumps, each of
which shall be capable of maintaining an adequate supply at all times. The audible and visual alarm on
the low level of water in the water seal shall operate at all times.
3.10.2.3.5 The arrangement of the water seal, or equivalent devices, and its associated fittings shall be
such that it will prevent backflow of vapours and liquids and will ensure the proper functioning of the
seal under operating conditions.
3.10.2.3.6 Provision shall be made to ensure that the water seal is protected against freezing, in such a
way that the integrity of seal is not impaired by overheating.
3.10.2.3.7 A water loop or other approved arrangement shall also be fitted to each associated water
supply and drain pipe and each venting or pressure-sensing pipe leading to gas-safe spaces. Means shall
be provided to prevent such loops from being emptied by vacuum.
3.10.2.3.8 Any water seal, or equivalent device, and loop arrangements shall be capable of preventing
return of vapours and liquids to an inert gas plant at a pressure equal to the test pressure of the cargo
tanks.
3.10.2.3.9
3.10.2.4
The non-return devices shall be located in the cargo area on deck.
Inert Gas Lines
3.10.2.4.1 The inert gas main may be divided into two or more branches forward of the non-return
devices required by paragraph 3.10.2.3.
3.10.2.4.2 The inert gas main shall be fitted with branch piping leading to each cargo tank. Branch
piping for inert gas shall be fitted with either stop valves or equivalent means of control for isolating each
tank. Where stop valves are fitted, they shall be provided with locking arrangements. The control system
shall provide unambiguous information on the operational status of such valves to at least the control
panel required in paragraph 3.10.2.5.1.
3.10.2.4.3 Each cargo tank not being inerted shall be capable of being separated from the inert gas
main by:
.1 removing spool-pieces, valves or other pipe sections, and blanking the pipe ends;
Fire-Extinguishing System and Inert Gas System
97
.2 arrangement of two spectacle flanges in series with provisions for detecting leakage into the pipe
between the two spectacle flanges; or
.3 equivalent arrangements providing at least the same level of protection.
3.10.2.4.4 Means shall be provided to protect cargo tanks against the effect of overpressure or vacuum
caused by thermal variations and/or cargo operations when the cargo tanks are isolated from the inert gas
mains.
3.10.2.4.5 Piping systems shall be so designed as to prevent the accumulation of cargo or water in the
pipelines under all normal operational conditions.
3.10.2.4.6 Arrangements shall be provided to enable the inert gas main to be connected to an external
supply of inert gas. The arrangements shall consist of a 250 mm nominal pipe size bolted flange, isolated
from the inert gas main by a stop valve and located forward of the non-return valve. The design of the
flange should conform to the appropriate class in the standards adopted for the design of other external
connections in the ship's cargo piping system.
3.10.2.4.7 If a connection is fitted between the inert gas main and the cargo piping system,
arrangements shall be made to ensure an effective isolation having regard to the large pressure difference
which may exist between the systems. This shall consist of two shutoff valves with an arrangement to
vent the space between the valves in a safe manner or an arrangement consisting of a spool-piece with
associated blanks 53.
3.10.2.4.8 The valve separating the inert gas main from the cargo main and which is on the cargo main
side shall be a non-return valve with a positive means of closure.
3.10.2.4.9
spaces.
Inert gas piping systems shall not pass through accommodation, service and control station
3.10.2.4.10 In combination carriers, the arrangement to isolate the slop tanks containing oil or oil
residues from other tanks shall consist of blank flanges which will remain in position at all times when
cargoes other than oil are being carried except as provided for in the relevant section of the guidelines for
inert gas system 54.
3.10.2.5
3.10.2.5.1
Indicators and Alarms
The operation status of the inert gas system shall be indicated in a control panel.
3.10.2.5.2 Instrumentation shall be fitted for continuously indicating and permanently recording, the
below parameters when inert gas is being supplied:
.1 the pressure of the inert gas mains forward of the non-return devices; and
.2 the oxygen content of the inert gas.
3.10.2.5.3 The indicating and recording devices shall be placed in the cargo control room where provided.
But where no cargo control room is provided, they shall be placed in a position easily accessible to the officer
in charge of cargo operations.
3.10.2.5.4 In addition, meters shall be fitted:
.1 in the navigating bridge to indicate at all times the inert gas pressure referred to in paragraph
3.10.2.5.2.1 and the pressure in the slop tanks of combination carriers, whenever those tanks are
isolated from the inert gas main; and
.2 in the machinery control room or in the machinery space to indicate the oxygen content referred to
in paragraph 3.10.2.5.2.2.
3.10.2.6
53
54
Audible and Visual Alarms
An example of such arrangement is presented in MSC/Circ.1120, for Chapter 15, paragraph 2.3.2.7, of FSS Code.
Refer to the Revised Guidelines for inert gas systems (MSC/Circ.353), as amended by MSC/Circ.387
98
Fire Protection
3.10.2.6.1 Audible and visual alarms shall be provided, based on the system designed, to indicate:
.1 oxygen content in excess of 5% by volume;
.2 failure of the power supply to the indicating devices as referred to in paragraph 3.10.2.5.2;
.3 gas pressure less than 100 mm water head. The alarm arrangement shall be such as to ensure that
the pressure in slop tanks in combination carriers can be monitored at all times;
.4 high-inert gas pressure; and
.5 failure of the power supply to the automatic control system.
3.10.2.6.2 The alarms required in paragraphs 3.10.2.6.1.1, 3.10.2.6.1.3 and 3.10.2.6.1.5 shall be fitted
in the machinery space and cargo control room, where provided, but in each case in such a position that
they are immediately received by responsible members of the crew.
3.10.2.6.3 An audible alarm system independent of that required in paragraph 3.10.2.6.1.3 or automatic
shutdown of cargo pumps shall be provided to operate on predetermined limits of low pressure in the
inert gas main being reached.
3.10.2.6.4 Two oxygen sensors 55 shall be positioned at appropriate locations in the space or spaces
containing the inert gas system. If the oxygen level falls below 19%, these sensors shall trigger alarms,
which shall be both visible and audible inside and outside the space or spaces and shall be placed in such
a position that they are immediately received by responsible members of the crew.
3.10.2.7
Instruction Manuals
Detailed instruction manuals shall be provided on board, covering the operations, safety and
maintenance requirements and occupational health hazards relevant to the inert gas system and its
application to the cargo tank system. 56 The manuals shall include guidance on procedures to be followed
in the event of a fault or failure of the inert gas system.
3.10.3
3.10.3.1
Additional Requirements for Flue Gas and Inert Gas Generator Systems
Inert Gas Generators.
3.10.3.1.1 Two fuel oil pumps shall be fitted to the inert gas generator fuel supply system. Suitable fuel
in sufficient quantity shall be provided for the inert gas generators.
3.10.3.1.2 The inert gas generators shall be located outside the cargo tank area. Spaces containing inert
gas generators shall have no direct access to accommodation, service or control station spaces, but may be
located in machinery spaces. If they are not located in machinery spaces, such a compartment shall be
separated by a gastight steel bulkhead and/or deck from accommodation, service and control station spaces.
Adequate positive-pressure-type mechanical ventilation shall be provided for such a compartment.
The space containing the inert gas generator shall have on entry doors an appropriate plate with inert
gas system symbol used on the Fire Control Plan.
3.10.3.1.3 The compartment in which any oil fired inert gas generator is situated is to be treated as
machinery space of Category A with respect to fire protection.
3.10.3.1.4 Arrangements are to be made to vent the inert gas from oil fired inert gas generators to the
atmosphere when the inert gas produced is off specification, e.g., during startup or in the event of
equipment failure.
3.10.3.1.5 Automatic shut-down of the oil fuel supply to inert gas generators is to be arranged in the
liquid fuel system on predetermined limits being reached with respect to low water pressure or low water
flow rate to the cooling and scrubbing arrangement and with respect to high gas temperature.
55
56
The oxygen sensors will be required onboard ships constructed on or after 1 January 2016.
Refer to the Revised Guidelines for inert gas systems (MSC/Circ.353), as amended by MSC/Circ.387
Fire-Extinguishing System and Inert Gas System
3.10.3.2
99
Gas Regulating Valves
3.10.3.2.1 A gas regulating valve shall be fitted in the inert gas main. This valve shall be automatically
controlled to close, as required in paragraph 3.10.2.2.2. It shall also be capable of automatically
regulating the flow of inert gas to the cargo tanks unless means are provided to automatically control the
inert gas flow rate.
3.10.3.2.2 The gas regulating valve shall be located at the forward bulkhead of the forward most gassafe space through which the inert gas main passes.
3.10.3.2.3 Automatic shut-down of the gas regulating valve is to be arranged with respect to failure of
the power supply to the oil fired inert gas generators.
3.10.3.3
Cooling and Scrubbing Arrangement
3.10.3.3.1 Means shall be fitted which will effectively cool the volume of gas specified in paragraph
3.10.2.1.2 and remove solids and sulphur combustion products. The cooling water arrangements shall be
such that an adequate supply of water will always be available without interfering with any essential
services on the ship. Provision shall also be made for an alternative supply of cooling water.
3.10.3.3.2 Filters or equivalent devices shall be fitted to minimize the amount of water carried over to
the inert gas blowers.
3.10.3.4
Blowers
3.10.3.4.1 At least two inert gas blowers shall be fitted and be capable of delivering to the cargo tanks
at least the volume of gas required by paragraph 3.10.2.1.2. For systems fitted with inert gas generators,
only one blower may be permitted if that system is capable of delivering the total volume of gas required
by paragraph 3.10.2.1.2 to the cargo tanks, provided that sufficient spares for the blower and its prime
mover are carried on board to enable any failure of the blower and its prime mover to be rectified by the
ship's crew.
3.10.3.4.2 Where inert gas generators are served by positive displacement blowers, a pressure relief
valves shall be provided to prevent excess pressure being developed on the discharge side of the blower.
3.10.3.4.3 When two blowers are provided, the total required capacity of the inert gas system shall be
divided evenly between the two and in no case is one blower to have a capacity less than 1/3 of the total
required.
3.10.3.5
Flue Gas Isolating Valves
For systems using flue gas, flue gas isolating valves shall be fitted in the inert gas mains between the
boiler uptakes and the flue gas scrubber. These valves shall be provided with indicators to show whether
they are open or shut, and precautions shall be taken to maintain them gastight and keep the seatings
clear of soot. Arrangements shall be made to ensure that boiler soot blowers cannot be operated when the
corresponding flue gas valve is open.
3.10.3.6
Prevention of Flue Gas Leakage
3.10.3.6.1 Special consideration shall be given to the design and location of scrubber and blowers with
relevant piping and fittings in order to prevent flue gas leakages into enclosed spaces.
3.10.3.6.2 To permit safe maintenance, an additional water seal or other effective means preventing
flue gas leakage shall be fitted between the flue gas isolating valves and scrubber or incorporated in the
gas entry to the scrubber.
3.10.3.7
Indicators and Alarms
100
Fire Protection
3.10.3.7.1 In addition to the requirements in paragraph 3.10.2.5.2, means shall be provided for
continuously indicating the temperature of the inert gas at the discharge side of the system, whenever it is
operating.
3.10.3.7.2 In addition to the requirements of paragraph 3.10.2.6, audible and visual alarms shall be
provided to indicate:
.1 insufficient fuel oil supply to the oil-fired inert gas generator;
.2 failure of the power supply to the generator;
.3 low water pressure or low water flow rate to the cooling and scrubbing arrangement;
.4 high water level in the cooling and scrubbing arrangement;
.5 high inert gas temperature;
.6 failure of the inert gas blowers; and;
.7 low water level in the water seal.
3.10.4
3.10.4.1
Additional Requirements for Nitrogen Generator Systems
Nitrogen Generator
3.10.4.1.1 The requirements of this subchapter are specific only to the generator system with nitrogen
as inert gas and apply where inert gas is produced by separating air into its component gases by passing
compressed air through a bundle of hollow fibres, semi-permeable membranes or adsorber materials.
3.10.4.1.2 The system shall be provided with one or more air compressors to generate enough positive
pressure to be capable of delivering the total volume of gas required by paragraph 3.10.2.1.2.
3.10.4.1.3 A feed air treatment system shall be fitted to remove free water, particles and traces of oil
from the compressed air.
3.10.4.1.4 The air compressor and nitrogen generator may be installed in the machinery space or in a
separate compartment. A separate compartment and any installed equipment shall be treated as an "Other
machinery space" with respect to fire protection. Where a separate compartment is provided for the
nitrogen generator, the compartment shall be fitted with an independent mechanical extraction ventilation
system providing six air changes per hour. The compartment is to have no direct access to
accommodation spaces, service spaces and control stations.
The space containing the nitrogen generator shall have on entry doors an appropriate plate with inert
gas system symbol used on the Fire Control Plan.
3.10.4.1.5 Where a nitrogen receiver or a buffer tank is installed, it may be installed in a dedicated
compartment, in a separate compartment containing the air compressor and the nitrogen generator, in the
machinery space, or in the cargo area. Where the nitrogen receiver or a buffer tank is installed in an
enclosed space, the access shall be arranged only from the open deck and the access door shall open
outwards. Adequate, independent mechanical ventilation, of the extraction type, shall be provided for
such a compartment.
3.10.4.1.6 The system is to be fitted with automatic means to discharge "off-specification" gas to the
atmosphere during start-up of generator, its failure or any abnormal operation.
3.10.4.1.7 The oxygen-enriched air from the nitrogen generator and the nitrogen-product enriched gas
from the protective devices of the nitrogen receiver are to be discharged to a safe location 57 on the open
deck.
57
“safe location” needs to address the two types of discharges separately:
1. oxygen-enriched air from the nitrogen generator - safe locations on the open deck are:
- outside of hazardous area;
- not within 3m of areas traversed by personnel; and
- not within 6m of air intakes for machinery (engines and boilers) and all ventilation inlets.
2. nitrogen-product enriched gas from the protective devices of the nitrogen receiver - safe locations on the open deck are:
- not within 3m of areas traversed by personnel; and
Fire-Extinguishing System and Inert Gas System
101
3.10.4.1.8 In order to permit maintenance, an isolation valve shall be fitted between the generator and
the receiver.
3.10.4.2
Indicators and Alarms
3.10.4.2.1 In addition to the requirements in paragraph 3.10.2.5.2, instrumentation is to be provided for
continuously indicating the temperature and pressure of air at the suction side of the nitrogen generator.
3.10.4.2.2 In addition to the requirements in paragraph 3.10.2.6.1, audible and visual alarms shall be
provided to include:
.1 failure of the electric heater, if fitted;
.2 low feed-air pressure or flow from the compressor;
.3 high-air temperature in compressor outlet; and
.4 high condensate level at automatic drain of water separator
3.10.4.2.3 Automatic shut-down of the system is to be arranged upon alarm conditions as required by
paragraph 3.10.4.2.2.
3.10.4.2.4 The alarms required by paragraphs 3.10.4.2.2 are to be fitted in the machinery space and
cargo control room, where provided, but in each case in such a position that they are immediately
received by responsible members of the crew.
3.10.5
Recommendations for Constant Operative Inerting Systems (COIS) as an Alternative to
Fixed Hydrocarbon Gas Detection Equipment
3.10.5.1 The COIS is intended for use in ballast tanks and void spaces of double hull adjacent to the
cargo tanks, referred to in 6.3.4.3.4, instead of hydrocarbon gas detection system as specified in 6.3.4.3.5.
3.10.5.2 The COIS should be provided with means for prevention of backflow of hydrocarbon gas
from protected spaces to the inert gas generator and the gas-safe space in which the generator is located.
The below means are acceptable:
.1 double block and bleed arrangements as per 3.10.2.3.1;
.2 at least two non-return devices as per 3.10.9.1.
3.10.5.3 Transfer of inert gas between protected spacer and cargo tanks and in reverse direction should
not be permitted.
3.10.5.4 Considering that the COIS has to be continuously operated (even during inerting and topping
up of cargo tanks), the means referred to in 3.10.5.2 are also required for connections between cargo
tanks and protected spaces.
3.10.5.5 To prevent water ingress (due to overfilling of ballast tanks) into the inert gas generator unit
and the space in which it is located, a non-return valve with a positive means of closure should be
provided in the main COIS distribution line.
3.10.5.6 Unless alternative means of prevention of water ingress are provided, where a common
distribution system is arranged for ballast tanks and void spaces/cofferdams, a high level alarm should be
provided in the ballast tanks and a water ingress detector should be provided in the void spaces.
3.10.5.7 If the COIS is interconnected with the inert gas system serving cargo tanks, a non-return
valve with a positive means of closure should be so located that water ingress into cargo tanks is also
prevented.
3.10.5.8 Means should be provided for isolating each protected space referred to in 6.3.4.3.4 from a
common COIS distribution system. Where stop valves are fitted, they should be provided with locking
arrangements which should be under the control of the responsible ship’s officer. There should be a clear
visual indication of the operational status of the valves or other acceptable means.
- not within 6m of air intakes for machinery (engines and boilers) and all ventilation inlets.
102
Fire Protection
3.10.5.9 The COIS distribution system should be so designed as to prevent accumulation of water in
the system under all normal conditions.
3.10.5.10 The COIS as an alternative to fixed hydrocarbon gas detection must be arranged with
redundancy in accordance with the requirements for inert gas systems. In case of failure of the COIS, use
of emergency portable gas detection means should be ensured as a temporary means, as specified in
6.3.11.
3.10.5.11 The COIS is required to be constantly operating. This implies that the system should be
arranged as follows:
.1 the system provides a continuous overpressure supply of inert gas (padding);
.2 the inert gas system serving the COIS is arranged for automatic start in case of low pressure.
3.10.5.12 The COIS may be arranged to supply inert gas to protected spaces independently or
simultaneously with the supply of inert gas to cargo tanks for topping up purposes. Accordingly, the
following alarm systems are required for a COIS distribution system:
.1 low water level in deck water seal as per 3.10.15.1.7 (if provided for the COIS);
.2 double-block and bleed activation (if provided for the COIS);
.3 low pressure in the COIS distribution piping as per 3.10.15.1.8;
.4 high pressure in the COIS main distribution piping as per 3.10.15.1.9.
3.10.5.13 Spaces protected are required to be maintained continuously in an inert condition.
Accordingly, unless arrangements are made for continuously purging such spaces with inert gas, means
should be provided (P/V valves) to ensure that inert gas does not escape via individual air pipes fitted to
such spaces when inert gas is not supplied – protection against overpressure and underpressure due to
changes in ambient temperature should be provided.
3.10.5.14 Arrangements for isolation of ballast tanks from the tank venting system should be such that
inadvertent closing isolation valve does not lead to structural failure due to ballast operations.
3.10.5.15 The capacity of the P/V valves must not result in overpressure (static and dynamic)
exceeding structural design limits, even in the event of overfilling of ballast tanks. Additionally, the
capacity of the valves must not result in under-pressure exceeding structural design of these tanks.
3.10.5.16 For common venting systems, considerations should be made with respect to damage
stability and progressive flooding.
3.10.5.17 Where an inert gas generator provides inert gas for both the cargo inerting and COIS system
then the system should be capable of inert gas delivering with the below capacity:
.1 at least 125% of the combined maximum discharge rate of the cargo and ballast tanks pumps
where systems and operational procedures available onboard permit simultaneous cargo and
ballast discharge;
.2 At least 125% of the combined maximum discharge rate of the cargo or ballast tanks pumps,
whichever is greater, where the system has an interlocking arrangement for the gas regulating
valves that do not permit simultaneous inerting of cargo and ballast tanks and operational
procedures available onboard are limited to this type of inerting.
If ballast tanks are arranged for gravity drainage, the maximum discharge rate of ballast tanks should
be taken as the maximum discharge rate using ballast pumps or the maximum obtainable gravity
discharge rate, whichever is greater.
3.10.5.18 Where a separate inert gas generator is provided for the COIS system then the plant should
have a capacity of at least 125% of the maximum discharge rate of the ballast tanks.
103
Fire-Extinguishing System and Inert Gas System
3.11
Tests of Fire-Extinguishing Systems and Inert Gas Systems
3.11.1 The scope of workshop tests and the tests on completion of pipelines installation on board, as
well as test pressure values for fire-extinguishing systems and inert gas systems shall be determined in
accordance with Table 3.11.
3.11.2 Flexible pipes and attachments, used in fire-extinguishing systems, which are required to be fireresistant materials, shall be subjected to fire test for at least 30 minutes at the temperature of 800 °C, while
at the maximum service pressure water is circulated inside the pipe. The temperature of the outlet shall not
be less than 80 °C. No leak should be recorded during or after the tests.
An alternative is to fire test of the flexible pipe with flowing water at a pressure of at least 0.5 MPa
and subsequently pressure test to twice the design pressure.
3.11.3 Fire hydrants, used in water fire main, made form components or materials liable to be
damaged or destroyed by heat fire are subject to fire test which shall be conducted in two stages:
– dry test – the valve shall be put into a furnace and tested for at least 10 minutes at a temperature of
250 °C;
– test under water working pressure – the valve connected to the water supply piping shall be put into a
furnace and tested for at least 30 minutes at a temperature of 540 °C.
The fire test is considered satisfactory if on completion of two stages of the test, the fire hydrant
functions properly.
Table 3.11
Scope of pressure tests and test pressure values for fire-extinguishing systems
and inert gas systems
Item
Systems to be tested
1
1
2
Water and foam fire-extinguishing systems (see also
sub-chapter 1.5.4, Part VI – Machinery Installations
and Refrigerating Plants):
.1 pipes of water fire main systems, water-spraying
systems and sprinkler systems,
.2 pipes of high pressure water-spraying systems
and sprinkler systems (water mist),
.3 pipes of foam systems.
2
3
3.1
3.2
Pipes of dry powder chemical systems
Carbon dioxide fire-extinguishing system
High pressure carbon dioxide system:
.1 pipes from cylinders to distribution valves
(manifold),
.2 pipes from distribution valves to the protected
spaces and pipes from safety valves passing
through accommodation and service spaces,
.3 remote control pilot lines pipes from pilot
cylinders to distribution valves/cylinder valves,
.4 pipes passing through spaces other than
accommodation spaces and service spaces and
pipes in the protected space.
Low pressure carbon dioxide system:
.1 pipes from storage tanks to distribution valves,
.2 pipes from distribution valves to protected
spaces; pipes from safety valves,
.3 pipes in the protected space.
Test pressure
In workshop
3
On board ship
4
–
1.25 p
1.5 p
1.25 p
–
1.25 p
1.5 p
1.25 p (air test)
1.5 p
19.0 MPa
–
5.0 MPa
1.3 p
–
1.3 p (nitrogen
test)
1.0 MPa
–
–
1.5 p(zb)
1.25 p(zb)
–
1.0 MPa
104
Fire Protection
1
4
2
Pipes and scrubber of inert gas system (in tankers)
3
–
5
Pipes of equivalent gas fire-extinguishing systems
1.5 p
4
1.25 p
(air test)
1.25 p (air test)
1
2
3
4
6
7
Compressed air pipes
Cylinders, storage tanks and containers:
.1 pressurized (including cylinders without valves)
.2 non-pressurized,
1.5 p
1.25 p (air test)
1.5 p
by filling up to
the top of air
vent pipe
1.25 p (air test)
1.5 p (but at least
0.2 MPa)
–
together with the
whole system
8
.3 cylinders with valves fitted.
Fittings – pressure and strength tests
–
–
Notes to Table 3.11:
1) The value p in the Table means the maximum working pressure in the system, p(zb) means the tank safety valve setting
pressure. For carbon dioxide system, p is equal to the design pressure in the cylinder or in the storage tank.
2) Complete fittings shall be subjected to hydraulic test with a pressure of at least 1.25 p. Carbon dioxide cylinders valves shall
be tested for tightness to maximum breaking pressure of the bursting disk – according to 3.6.4.3.3.
3) The systems shall be tested in assembly on board ship, upon completion of all installation work.
4) Pipes of water fire main systems in ships of 500 gross tonnage and upwards shall be tested for tightness to a pressure of at
least 1.0 MPa.
Fire Signalling Systems and Hydrocarbon Gas Detection System
4
105
FIRE SIGNALLING SYSTEMS AND HYDROCARBON GAS DETECTION SYSTEM
4.1
Fixed Fire Detection and Fire Alarm System
4.1.1
Definitions
The below definitions apply to this subchapter:
.1 S e c t i o n – a group of fire detectors and manually operated call points as reported in the
indicating unit.
.2 S e c t i o n i d e n t i f i c a t i o n c a p a b i l i t y – a system with the capability of identifying the
section in which a detector or manually operated call point has activated.
.3 I n d i v i d u a l l y i d e n t i f i a b l e – a system with the capability to identify the exact location
and type of detector or manually operated call point which has activated, and which can
differentiate the signal of that device from all others.
4.1.2
General Requirements
4.1.2.1 Any required fixed fire detection and fire alarm system shall consist of fire detectors, manually
operated call points and the control panel. The system shall be capable of immediate operation at all
times (this does not require a back-up control panel). Notwithstanding this, particular spaces may be
disconnected, for example workshops during hot work and ro-ro spaces during on and off-loading. The
means for disconnecting the detectors shall be so designed as to automatically restore the system to
normal surveillance after a pre-determined time that is appropriate for the operations in question. The
space shall be manned or provided with patrol when the required detectors are disconnected. The
detectors in all other compartments shall remain operational.
4.1.2.2 Where a fixed fire detection and fire alarm system is required for the protection of spaces other
than stairways, corridors and escape routes, at least one detector shall be installed in each such space.
4.1.2.3 Fixed fire detection and fire alarm system shall be so designed and the detectors so positioned as
to detect rapidly the onset of fire in any part of the protected spaces and under any normal conditions of
operation of the machinery and variations of ventilation as required by the possible range of ambient
temperatures.
4.1.2.4 Except in spaces of restricted height and where their use is particularly appropriate, detection
and alarm systems using only thermal detectors are not permitted.
4.1.2.5 Smoke detectors shall be installed in all stairways, corridors and escape routes within
accommodation spaces. It is recommended that special purpose smoke detectors be installed within
ventilation ducting where smoke may occur as a factor indicative of incipient fire.
4.1.2.6 Manually operated call points shall be installed throughout the accommodation spaces, service
spaces and control stations, but it is not required that they be fitted in an individual space within these
spaces. One manually operated call point shall be located at each exit. Manually operated call points shall
be located in the corridors of each deck at each exit (inside or outside) to the open deck and be readily
accessible from the corridor such that no part of the corridor is more than 20 m from a manually operated
call point.
Service spaces and control stations which have only one access, leading directly to the open deck, shall
have a manually operated call point not more than 20 m (measured along the access route using the deck,
stairs and/or corridors) from the exit.
Manually operated call points are not required to be installed for spaces having little or no fire risk,
such as void spaces and carbon dioxide rooms, nor at each exit from the navigation bridge, in cases
where the control panel is located on the navigation bridge.
The location of each manually operated call point shall be indicated by means of plate with the
symbol used on Fire Control Plan.
106
Fire Protection
4.1.2.7 Fixed fire detection and fire alarm system shall be so designed as to:
.1 control and monitor input signals from all the connected fire and smoke detectors and manually
operated call points;
.2 provide output signals to the navigation bridge, continuously manned control station or onboard
safety centre to notify the crew of fire and fault conditions;
.3 monitor power supplies and circuits necessary for the operation of the system for loss of power
and fault conditions;
additionally:
.4 the system may be arranged with output signals to other fire safety systems including:
.1 paging systems, fire alarm or public address systems;
.2 fan stops;
.3 fire doors 58;
.4 fire dampers;
.5 automatic sprinkler systems;
.6 smoke extraction systems;
.7 low-location lighting systems;
.8 fixed local application fire-extinguishing systems;
.9 individual CCTV systems; and
.10 other fire safety systems.
4.1.2.8 The fire detection and fire alarm system may be connected to a decision management system,
provided that:
.1 the decision management system is proven to be compatible with the fire detection system;
.2 the decision management system can be disconnected without losing any of the functions
required by this sub-chapter for the fire detection system;
.3 any malfunction of the interfaced and connected equipment will not propagate under any
circumstance to the fire detection system.
4.1.2.9 Detectors and manually operated call points shall be connected to dedicated sections of the fire
detection system. Other fire safety functions, such as alarm signals from the sprinkler valves, may be
permitted if provided in separate sections.
4.1.2.10 Fixed fire detection and fire alarm system shall be so designed as to withstand supply voltage
variation and transients, ambient temperature changes, vibration, humidity, shock, impact and corrosion
normally encountered in ships. All electrical and electronic equipment on the bridge or in the vicinity of the
bridge shall be tested for electromagnetic compatibility in accordance with Res. A.813(19).
4.1.2.11 Fixed fire detection and fire alarm systems with a zone address identification capability shall
be so arranged that:
.1 means are provided to ensure that any fault (e.g. power break, short circuit, earth, etc.) occurring
in the loop will not render the whole loop ineffective;
.2 all arrangements are made to enable the initial configuration of the system to be restored in the
event of failure (e.g. electrical, electronic, informatics, etc.);
.3 the first initiated fire alarm will not prevent any other detector from initiating further fire alarms;
and
.4 no loop will pass through a space twice. When this is not practicable (e.g. for large public
spaces), the part of the loop which by necessity passes through the space for a second time shall
be installed at the maximum possible distance from the other parts of the loop.
4.1.2.12 In cargo ships, the fixed fire detection and fire alarm system shall be, as a minimum, capable of
identifying each loop.
4.1.2.13 Spaces/group of spaces covered by the fixed fire detection and alarm system shall be marked by
means of plate, placed at access door, with the symbol used on Fire Control Plan.
58
Watertight doors which also serve as fire doors shall not be closed automatically in case of fire detection.
Fire Signalling Systems and Hydrocarbon Gas Detection System
4.1.3
107
Sources of Power Supply
4.1.3.1 There shall not be less than two sources of power supply for the electrical equipment used in
the operation of the fixed fire detection and fire alarm system, one of which shall be an emergency
source. The supply shall be provided by separate feeders reserved solely for that purpose. Such feeders
shall run to an automatic changeover switch situated in or adjacent to the control panel for the fire
detection system. The changeover switch shall be so designed that its failure will not cut off the source of
power supply. The main feeder (and the corresponding emergency feeder) shall run from the switchboard
to the changeover switch avoiding another switchboard.
4.1.3.2 The operation of the automatic changeover switch or a failure of one of the power supply
sources shall not cause loss of fire detection capability. Where a momentary loss of power would cause
degradation of the system, a battery of adequate capacity shall be provided to ensure continuous operation
during changeover.
4.1.3.3 There shall be sufficient power to permit the continued operation of the system with all detectors
activated, but not more than 100 if the total exceeds this figure.
4.1.3.4 In cargo ships, the emergency source of power specified in 4.1.3.1 shall be supplied by
accumulators batteries or from the emergency switchboard. The source of power shall be sufficient to
maintain the operation of the fire detection and fire alarm system for the periods required in sub-chapter 9.3,
Part VIII – Electrical Installations and Control Systems, and at the end of that period, shall be capable of
operating all connected visual and audible fire alarm signals for a period of at least 30 min.
4.1.3.5 Where the fire detection system is supplied from accumulators batteries, the accumulator battery
shall be located in or adjacent to the control panel for the fire detection system, or in another location
suitable for use in an emergency. The rating of the battery charge unit shall be sufficient to maintain the
normal output power supply to the fire detection system while recharging the batteries from a fully
discharged condition.
4.1.4
4.1.4.1
Component Requirements
Detectors
4.1.4.1.1 Detectors shall be operated by heat, smoke or other products of combustion, flame, or any
combination of these factors. Detectors operated by other factors indicative of incipient fires may be
accepted, provided that they are not less sensitive than such detectors.
4.1.4.1.2 Smoke detectors required in all stairways, corridors and escape routes within accommodation
spaces shall be certified to operate before the smoke density exceeds 12.5% obscuration per metre, but
not until the smoke density exceeds 2% obscuration per metre, when tested according to EN 54:2001 and
IEC 60092-504. Alternative national standards may be used. Smoke detectors to be installed in other
spaces shall operate within sensitivity limits recommended by the manufacturer having regard to the
avoidance of detector insensitivity or oversensitivity.
4.1.4.1.3 Heat detectors shall be certified to operate before the temperature exceeds 78ºC but not until
the temperature exceeds 54ºC, when the temperature is raised to those limits at a rate less than 1ºC per
min, when tested according to EN 54:2001 and IEC 60092-504. Alternative national standards may be
used. At higher rates of temperature rise, the heat detector shall operate within temperature limits
recommended by the manufacturer having regard to the avoidance of detector insensitivity or
oversensitivity.
4.1.4.1.4 Operation temperature of heat detectors in drying rooms and similar spaces of a normal high
ambient temperature may be up to 130 oC, and to 140 oC in saunas.
4.1.4.1.5 Flame detectors shall be tested in accordance with EN 54-10:2001 and IEC 60092-504.
Alternative national standards are permitted.
108
Fire Protection
4.1.4.1.6 All detectors shall be of a type such that they can be tested for correct operation and restored
to normal surveillance without the renewal of any component.
4.1.4.1.7 Detectors fitted in hazardous areas, where there is a risk of explosion, shall be tested and
type-approved for such service. Detectors installed in special category spaces above the bulkhead deck
need not be type-approved for service in hazardous areas. Detectors fitted in spaces carrying dangerous
goods, listed in sub-chapter 2.10, Table 2.10-3, shall be suitable for service in hazardous areas
in order to fulfil the requirements specified in sub-chapter 2.10.4.
4.1.4.1.8 Detectors fitted in refrigerated spaces, such as refrigerated provision chambers, shall be tested in
accordance with the relevant, for such spaces 59, procedures.
4.1.4.2
Control Panel
The control panel for the fire detection system shall be tested in accordance with standards EN 542:1997, EN 54-4:1997 and IEC 60092-504:2001. Alternative national standards are permitted.
4.1.4.3
Cables
Cables used in the electrical circuits shall be flame-retardant in accordance with standard IEC 60332-1.
4.1.5
Installation Requirements
4.1.5.1
4.1.5.1.1
Detector Sections
Detectors and manually operated call points shall be grouped into sections.
4.1.5.1.2 The section of fire detectors which covers a control station, a service space or an
accommodation space shall not include a machinery space of category A or a ro-ro space. The section of
fire detectors which covers a ro-ro space shall not include a machinery space of category A. For fixed
fire detection systems with remotely and individually identifiable fire detectors, a section covering fire
detectors in accommodation, service spaces and control stations shall not include fire detectors in
machinery spaces of category A or ro-ro spaces.
4.1.5.1.3 Where the fixed fire detection and fire alarm system does not include means of remotely
identifying each detector individually, no section covering more than one deck within accommodation
spaces, service spaces and control stations shall normally permitted, except a section which covers an
enclosed stairway. In order to avoid delay in identifying the source of fire, the number of enclosed spaces
included in each section shall be limited and is subject to PRS’ approval in each particular case. If the
detection system is fitted with remotely and individually identifiable fire detectors, the sections may
cover several decks and serve any number of enclosed spaces.
4.1.5.2
Positioning of Detectors
4.1.5.2.1 Detectors shall be located for optimum performance. Positions near beams and ventilation
ducts, or other positions where patterns of air flow could adversely affect performance, and positions
where impact or physical damage is likely, shall be avoided. Detectors shall be located on the overhead
at a minimum distance of 0.5 m away from bulkheads, except in corridors, lockers and stairways.
4.1.5.2.2
59
The maximum spacing of detectors shall be in accordance with the below Table:
See the guidelines of the International Electrotechnical Commission, in particular Publication IEC 60068-2-1 – Section one
– Test Ab, Environmental Testing – Part 2-1: Tests A: Cold
109
Fire Signalling Systems and Hydrocarbon Gas Detection System
Table 4.1.5.2.2
Spacing of detectors
Item
Detector
type
Maximum floor area
per detector
[m2 ]
Maximum distance
apart between centres
[m]
Maximum distance
from bulkheads
[m]
1
Heat
37
9
4.5
2
Smoke
74
11
5.5
Other spacings based upon test data which demonstrate the characteristics of the detectors are permitted.
Detectors located below moveable ro-ro decks shall be in accordance with the above requirement.
4.1.5.2.3 Detectors in stairways shall be located at least at the top level of the stair and at every second
level beneath.
4.1.5.2.4 When fire detectors are installed in freezers, drying rooms, saunas, parts of galleys used to
heat food, laundries and other spaces where steam or fumes are produced, heat detectors may be used.
4.1.5.2.5 Where a fixed fire detection and fire alarm system is required within accommodation spaces
and service spaces in accordance with 2.4.1, spaces having little or no fire risk need not be fitted with
detectors. Such spaces include void spaces with no storage of combustibles, private bathrooms, public
toilets, fire-extinguishing medium storage rooms (fire-extinguishing stations), cleaning gear lockers (in
which flammable liquids are not stowed), open deck spaces and enclosed promenades having little or no
fire risk and that are naturally ventilated by permanent openings.
4.1.5.3
Arrangement of Cables
4.1.5.3.1 Cables which form part of the system shall be so arranged as to avoid galleys, machinery
spaces of category A, and other enclosed spaces of high fire risk except where it is necessary to provide
for fire detection or fire alarms in such spaces or to connect them to the appropriate power supply.
4.1.5.3.2 Section with individually identifiable capability shall be so arranged that it cannot be
damaged at more than one point by a fire.
4.1.6
4.1.6.1
System Control Requirements
Visual and Audible Fire Detection Alarm Signals
4.1.6.1.1 Activation of any detector or manually operated call point shall initiate a visual and audible fire
detection alarm signal at the control panel and indicating units. Alarm signals shall be in accordance with
the Code on Alarms and Indicators – Res. A.1021(26). If the signals have not been acknowledged within 2
min., an audible fire alarm shall be automatically sounded throughout the crew accommodation and service
spaces, control stations and machinery spaces of category A. This alarm sounder system need not be an
integral part of the detection system.
If the alarm sounder system is not an integral part of the detection system, then the alarm sounder
system shall be powered from no less than two sources of power, one of which shall be an emergency
source of power.
In ships provided with a transitional source of emergency electrical power, the alarm sounder system
shall also be powered from this power source.
4.1.6.1.2 Control panel shall be located on the navigation bridge or in the fire control station.
The location of each control panel shall be indicated by a plate with the symbol used on Fire Control
Plan.
4.1.6.1.3 In cargo ships, an indicating unit shall be located on the navigation bridge if the control panel
is located in the fire control station. Where a cargo ship is provided with cargo control room, an
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Fire Protection
indicating unit shall be located in this room. Indicating units shall, as a minimum, denote the section in
which a detector has activated or manually operated call point has been operated.
4.1.6.1.4 Clear information shall be displayed on or adjacent to each indicating unit about the spaces
covered and the location of the sections.
4.1.6.1.5 Power supplies and electric circuits necessary for the operation of the system shall be
monitored for loss of power and fault conditions, as appropriate including:
.1 a single open or power break fault caused by a broken wire;
.2 a single ground fault caused by the contact of a wiring conductor with a metal component; and
.3 a single wire to wire fault caused by the contact of two or more wiring conductors.
Occurrence of a fault condition shall initiate a visual and audible fault signal at the control panel which
shall be distinct from a fire signal.
4.1.6.1.6 Means to manually acknowledge all alarm and fault signals shall be provided at the control
panel. Audible alarm sounders on the control panel and indicating units may be manually silenced. The
control panel shall clearly distinguish between normal, alarm, acknowledged alarm, fault and silenced
conditions.
4.1.6.1.7 The system shall be so arranged as to automatically reset to the normal operating condition
after alarm and fault conditions are cleared.
4.1.6.1.8 When the system is required to sound a local audible alarm within the cabins where the
detectors are located, any means to silence the local audible alarms from the control panel are not
permitted.
4.1.6.1.9 In general, audible alarm sound pressure levels at the sleeping positions in the cabins and 1 m
from the source shall be at least 75 dB(A) and at least 10 dB(A) above ambient noise levels existing during
normal equipment operation with the ship under way in moderate weather. The sound pressure level shall
be in the 1/3 octave band about the fundamental frequency. Audible alarm signals shall not exceed
120 dB(A).
4.1.7
Operation Tests of the System
4.1.7.1 The function of fixed fire detection and fire alarm systems shall be tested under varying
conditions of ventilation after installation on board.
4.1.7.2 Appropriate instructions and instruments for testing/maintenance of fire detectors, suitable for
the types of fire, as well as components/ spare detectors shall be provided on board, in accordance with
manufacturer’s instructions.
4.2
4.2.1
Sample Extraction Smoke Detection System (for Cargo Spaces)
General Requirements
4.2.1.1 Sample extraction smoke detection system is intended for installation in conventional cargo
spaces in ships carrying dangerous goods in accordance with the requirements specified in 2.10, as well
as in ro-ro spaces and vehicle spaces.
4.2.1.2 Sample extraction smoke detection system shall consist of the following main components:
.1 smoke accumulators – air collection devices installed at the open ends of the sampling pipes in
each cargo hold that perform the physical function of collecting air samples for transmission to the
control panel through the sampling pipes, and may also act as discharge nozzles for the fixed gas
fire-extinguishing system, if installed;
.2 sampling pipes – a piping network that connects the smoke accumulators to the control panel,
arranged in sections to allow the location of the fire to be readily identified;
Fire Signalling Systems and Hydrocarbon Gas Detection System
.3
.4
111
three-way valves – if the system is interconnected to a fixed gas fire-extinguishing system, threeway valves are used to normally align the sampling pipes to the control panel, and if a fire is
detected, the three-way valves are re-aligned to connect the sampling pipes to the fire-extinguishing
system discharge manifold and isolate the control panel; and;
control panel – the main element of the system which provides continuous monitoring of the
protected spaces for indication of smoke. It typically may include a viewing chamber or smoke
sensing units. Extracted air from the protected spaces is drawn through the smoke accumulators
and sampling pipes to the viewing chamber, and then to the smoke sensing chamber where the air
stream is monitored by electrical smoke detectors. If smoke is sensed, the repeater panel (normally
on the bridge) automatically sounds an alarm (not localized). The crew can then determine at the
smoke sensing unit which cargo hold is on fire and operate the pertinent three-way valve for
discharge of the extinguishing agent.
4.2.1.3 Any required system shall be capable of continuous operation at all times except that systems
operating on a sequential scanning principle may be accepted, provided that the interval between scanning
the same position twice depends on the number of scanning points and the response time of the fans.
The interval (I) shall be determined with a 20% allowance in accordance with the following formula:
I = 1.2 × T × N [s]
where:
T – response time of the fans [s];
N – the number of scanning points.
The maximum allowable interval between the two subsequent scans, however, shall not exceed 120 s
(Imax = 120 s).
4.2.1.4 The system shall be so designed, constructed and installed as to prevent the leakage of any
toxic or flammable substances or fire-extinguishing media into any accommodation and service space,
control station or machinery space.
4.2.1.5 The system and its equipment shall be suitably designed to withstand supply voltage variations
and transients, ambient temperature changes, vibration, humidity, shock, impact and corrosion normally
encountered in ships and to avoid the possibility of ignition of a flammable gas-air mixture.
4.2.1.6 The system shall be of a type that can be tested for correct operation and restored to normal
surveillance without the renewal of any component.
4.2.1.7 Alternative power supply for the electrical equipment used in the operation of the system shall
be provided.
4.2.2
Component Requirements
4.2.2.1 The sensing unit shall be certified to operate before the smoke density within the sensing
chamber exceeds 6.65% obscuration per metre.
4.2.2.2 Duplicate sample extraction fans shall be provided. The fans shall be of sufficient capacity to
operate with the normal conditions or ventilation in the protected area and the connected pipe size shall
be determined with consideration of fan suction capacity and piping arrangement to satisfy the conditions
specified in 4.2.5.2 Sampling pipes shall be a minimum of 12 mm internal diameter. The fan suction
capacity shall be adequate to ensure the response of the most remote area within the required time criteria
specified in 4.2.5.2. Means to monitor airflow shall be provided in each sampling line.
4.2.2.3
Control panel shall permit observation of smoke in the individual sampling pipes.
4.2.2.4 Sampling pipes shall be so designed as to ensure that, as far as practicable, equal quantities of
airflow are extracted from each interconnected accumulator.
4.2.2.5
air.
Sampling pipes shall be provided with an arrangement for periodically purging with compressed
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Fire Protection
4.2.2.6 Control panel for the smoke detection system shall be tested according to standards EN 54-2
(1997), EN 54-4 (1997) and IEC 60092-504 (2001). Alternative standards may also be used.
4.2.3
Installation Requirements
4.2.3.1
Smoke Accumulators
4.2.3.1.1 At least one smoke accumulator shall be located in every enclosed space for which smoke
detection is required. However, where a space is designed to carry oil fuel or refrigerated cargo
alternatively with cargoes for which a smoke sampling system is required, means may be provided to
isolate the smoke accumulators in such compartments from the system. Such means are subject to PRS’
approval in each particular case.
4.2.3.1.2 Smoke accumulators shall be located on the overhead or as high as possible in the protected
space, and shall be spaced so that no part of the overhead deck area is more than 12 m measured
horizontally from an accumulator. Where such systems are used in spaces which may be mechanically
ventilated, the position of the smoke accumulators shall be considered having regard to the effects of
ventilation. At least one additional smoke accumulator shall be provided in the upper part of each
exhaust ventilation duct. An adequate filtering system shall be fitted at the additional accumulator to
avoid dust contamination.
4.2.3.1.3
occur.
Smoke accumulators shall be positioned where impact or physical damage is unlikely to
4.2.3.1.4 Sampling pipe networks shall be balanced to ensure compliance with 4.2.2.4. The number of
accumulators connected to each sampling pipe shall ensure compliance with 4.2.5.2.
4.2.3.1.5 Smoke accumulators from more than one enclosed space shall not be connected to the same
sampling pipe.
4.2.3.1.6 In cargo holds where non-gastight ‘‘tween deck panels” (movable stowage platforms) are
provided, smoke accumulators shall be located in both the upper and lower parts of the holds.
4.2.3.2
Sampling Pipes
4.2.3.2.1
Sampling pipe arrangement shall be such that the location of the fire can be readily identified.
4.2.3.2.2 Sampling pipes shall be self-draining and effectively protected from impact or damage from
cargo working.
4.2.4
4.2.4.1
System Control Requirements
Visual and Audible Fire Alarm Signals
4.2.4.1.1 Detection of smoke or other products of combustion shall initiate a visual and audible signal at
the control panel and indicating units.
4.2.4.1.2 The control panel shall be located on the navigation bridge or in the fire control station. An
indicating unit shall be located on the navigation bridge if the control panel is located in the fire control
station, e.g. in fire-extinguishing station containing CO2 cylinders. Observation of smoke shall be made
by electrical means or by visual observation on the indicating unit.
The location of control panel and indicating unit shall be marked by means of plate with the symbol
used on Fire Control Plan.
4.2.4.1.3 Clear information shall be displayed on or adjacent to the control panel and indicating units
designating the spaces covered.
Fire Signalling Systems and Hydrocarbon Gas Detection System
113
4.2.4.1.4 Power supplies necessary for the operation of the system shall be monitored for loss of power.
Any loss of power shall initiate a visual and audible signal at the control panel and the navigating bridge
which shall be distinct from a signal indicating smoke detection.
4.2.4.1.5 Means to manually acknowledge all alarm and fault signals shall be provided at the control
panel. The audible alarm sounders on the control panel and indicating units may be manually silenced. The
control panel shall clearly distinguish between normal, alarm, acknowledged alarm, fault and silenced
conditions.
4.2.4.1.6 The system shall be so arranged as to automatically reset to the normal operating condition
after alarm and fault conditions are cleared.
4.2.5
Testing
4.2.5.1 Suitable instructions and component spares shall be provided on board for the system testing
and maintenance.
4.2.5.2 After installation, the system shall be functionally tested using smoke generating machines or
equivalent as a smoke source. An alarm shall be received at the control unit in not more than 180 s for
vehicle decks, and not more than 300 s for container and general cargo holds, after smoke is introduced
at the most remote accumulator.
4.3
Warning Signalization System (Alerting of the Release of Fire-extinguishing Medium)
4.3.1 Warning signalization system, required in 3.6.3, shall give visual and audible warning of the
release of fire-extinguishing medium into the protected. space.
4.3.2 The sound alarm shall be audible throughout the protected space at the maximum noise level in
the space. The alarm signal shall be easily distinguished from other alarm signals and shall fulfil the
requirements of the Code on Alarms and Indicators – Res. A.1021 (26). The visual signal shall be red in
accordance with ISO 2412.
4.3.3 Conventional cargo spaces, as well as small spaces, such as small compressor rooms, paint
lockers, etc. with local fire-extinguishing system need not be provided with warning signalization
system.
4.3.4 Warning signalization system shall also fulfil the requirements specified in sub-chapter 7.6, Part
VIII – Electrical Installations and Control Systems.
4.4
4.4.1
Fixed Hydrocarbon Gas Detection Systems in Tanker Hull Spaces
General Requirements
4.4.1.1 The system shall comprise a central unit for gas measurement and analysis and gas sampling
pipes from all ballast tanks and void spaces of double-hull and double-bottom spaces adjacent to the
cargo tanks, including the forepeak tank and any other tanks and spaces under the bulkhead deck
adjacent to cargo tanks.
4.4.1.2 The system may be integrated with the cargo pump-room gas detection system, provided that
the spaces, referred to in 4.4.1.1, are sampled at the rate required in 4.4.2.3.1. Continuous sampling from
other spaces may also be considered, provided the sampling rate is complied with.
4.4.1.3 The system shall be designed, constructed and tested in accordance with the guidelines
specified in MSC.1/Circ.1370.
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4.4.2
4.4.2.1
Fire Protection
Component Requirements
Gas Sampling Lines
4.4.2.1.1 Common sampling lines to the detection equipment shall not be fitted, except the lines
serving each pair of sampling points as required in 4.4.2.1.3 and 4.4.2.1.7.
4.4.2.1.2 The materials of construction and the dimensions of gas sampling lines shall be such as to
prevent flow restriction. Where non-metallic materials are used, they shall be electrically conductive. The
gas sampling lines shall not be made of aluminium.
4.4.2.1.3 Configuration of gas sampling lines shall be adapted to the design and size of each space.
Except as provided in 4.4.2.1.4 and 4.4.2.1.5, the sampling system shall allow for a minimum of two
hydrocarbon gas sampling points, one located on the lower and one on the upper part of the space where
sampling is required. Where required, the upper gas sampling point shall not be located lower than 1 m
from the tank top. The position of the lower located gas sampling point shall be above the height of the
bottom shell-plating girder, however, at least 0.5 m from the bottom of the tank and it shall be provided
with means to be closed when clogged. While positioning the fixed sampling points, due regard shall also
be paid to the density of vapours of the oil products intended to be transported and the dilution from
space purging or ventilation.
4.4.2.1.4 For ships with deadweight of less than 50,000 tonnes, installation of one sampling location
for each tank may be permitted for practical and/or operational reasons.
4.4.2.1.5 For ballast tanks in the double-bottom, ballast tanks not intended to be partially filled and
void spaces, the upper gas sampling point is not required.
For void spaces and other dry compartments such as ballast pump-rooms, one bottom sampling
detector is acceptable.
For ballast tanks and fresh water tanks, top and bottom sampling points shall be provided unless the
prohibition of partial filling is clearly stated in the Stability Booklet/Loading Manual.
4.4.2.1.6 Means shall be provided to prevent gas sampling lines from clogging when tanks are being
ballasted by using compressed air flushing to clean the line after switching from ballast to cargo loaded
mode. The system shall have an alarm to indicate if the gas sampling lines are clogged.
The system shall also have an alarm if low flow or no flow is detected when the relevant sampling
line is active.
4.4.2.1.7 If combined sampling lines are used, and unless each sampling line from each sampling
point has an isolation valve arrangement, a common line shall ensure that the sampling rate from each
point will be 70% from the top and 30% from the lower (due to pressure drop) 60.
It may, however, be accepted that each sampling line from each sampling point in the compartment
being monitored is joined at the deck level via a manually operated three-way valve arrangement. When
the ship is in the loaded condition, the three-way valve will be set so that the lower sampling point is
active, and when in the ballast/partial ballast condition it will be set such that the top sampling point is
active. The valve shall be provided with local identification of which sampling point is active (top or
bottom).
A signboard shall be provided in the Cargo Control Room to specify the procedure for manual operation of
valves depending on operational mode as follows:
– in loaded condition: the valve to be set so that the lower sampling point is active;
– in ballast/partial condition: the valve to be set so that the upper sampling point is active.
60
This is not considered to give acceptable accuracy. It is, therefore, preferable that single sampling lines from each sampling
point to the gas detection cabinet are arranged.
Fire Signalling Systems and Hydrocarbon Gas Detection System
4.4.2.2
115
Gas Analysis Unit
4.4.2.2.1 Gas analysis unit shall be located in a safe space and may be located in areas outside the
ship's cargo area; for example, in the cargo control room and/or navigation bridge in addition to the
hydraulic room when mounted on the forward bulkhead, provided the following requirements are
fulfilled:
.1 sampling lines shall not be led through gas-safe spaces, except where permitted under .5;
.2 hydrocarbon gas sampling pipes shall be equipped with flame arresters. Sample hydrocarbon gas
shall be led to the atmosphere with outlets arranged in a safe location, not close to a source of
ignition and not close to the accommodation area air intakes;
.3 manual isolating valve, which shall be easily accessible for operation and maintenance, shall be
fitted in each of the sampling lines at the bulkhead on the gas-safe side;
.4 hydrocarbon gas detection equipment including sample piping, sample pumps, solenoids,
analysing units etc., shall be located in a reasonably gas-tight cabinet (e.g. fully enclosed steel
cabinet with a door with gaskets) which shall be monitored by its own sampling point. At a gas
concentration above 30% of the lower flammable limit inside the steel enclosure the entire gas
analysing unit shall be automatically shut down; and
.5 where the enclosure cannot be arranged directly on the bulkhead, sample pipes shall be of steel or
other equivalent material and without detachable connections, except for the connection points
for isolating valves at the bulkhead and analysing unit, and shall be led on their shortest routes.
4.4.2.3
Gas Detection Equipment
4.4.2.3.1 Gas detection equipment shall be so designed as to sample and analyse from each sampling
line of each protected space, sequentially at intervals not exceeding 30 min.
If sampling lines from each sampling point in the same space are combined it is not required that both
sampling points should be active in all modes (i.e. in loaded condition and ballast/partial ballast
condition).
4.4.2.3.2 Means shall be provided to enable measurements with portable instruments, in case the fixed
system is out of order or for system calibration. In case the system is out of order, procedures shall be in
place to continue to monitor the atmosphere with portable instruments and to record the measurement
results.
4.4.2.3.3 Audible and visual alarms shall be initiated in the cargo control room, navigation bridge and
at the analysing unit when the vapour concentration in a particular space reaches a pre-set value, which
shall not be higher than the equivalent of 30% of the lower flammable limit (LFL).
4.4.2.3.4
Gas detection equipment shall be so designed that it may be readily tested and calibrated.
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5
Fire Protection
FIRE-FIGHTING EQUIPMENT, ESCAPE EQUIPMENT, SPARES AND TOOLS
5.1
5.1.1
Fire-Fighting Equipment and Escape Equipment
General Requirements
5.1.1.1 Fire-fighting equipment and escape equipment (hereinafter referred to as equipment) shall fulfil
the requirements specified in the Rules for Statutory Survey of Sea-going Ships, Part VIII – Fire-fighting
Equipment and Escape Equipment.
5.1.1.2 Equipment shall be located in easily accessible and visible places on the ship and shall be fixed
to bulkheads/linings/decks in a safe manner, allowing its immediate use.
5.1.1.3 The location, on board the ship, of each equipment specified in the present Chapter (portable
and mobile fire –extinguishers, portable foam applicator units, fire-fighter’s outfit sets, water fog
applicators, emergency escape breathing devices) shall be indicated by a plate with the symbol used on
Fire Control Plan. The plates shall be made of photoluminescent material complying with the
requirements specified in Res. A.752(18) or ISO 15370:2010, or from other material and marked by
lighting supplied from the emergency source of power.
Additionally, such plates shall be used to mark the following components of the fire-fighting
appliances: manually operated call points, general alarm call points, control panel, emergency sources of
electric power (aggregate, accumulator batteries), emergency switchboard, fire pumps, tanks/cylinders of
gas fire-extinguishing systems, air compressor for breathing apparatus, controls for: remote operation of
fixed fire-extinguishing systems, remote stopping of fuel and lubricating oil pumps, remote operation of
fire pumps, remote operation of bilge pumps, closing of oil fuel/oil tank valves, remote stopping of fans
and fire dampers in ventilation ducts, remote closing of fire dampers, closing appliances for ventilation
openings in the spaces, as well as section valves and shut-off valves of water and foam fire-extinguishing
systems, fire hydrants and fire hose boxes, as specified in particular paragraphs of the present Part of the
Rules.
5.1.1.4 The equipment shall be kept in good working condition and be available for immediate use at
all times whether at sea or in port and shall be used exclusively for fire fighting, rescue operations and
training purposes.
5.1.1.5 Spare equipment shall be stored in the fire-fighting equipment locker or in other space specially
designed for this purpose. It is recommended that there should be two fire-fighting equipment lockers on
the ship, one of them being located within superstructure.
Each fire-fighting equipment locker shall be indicated, at access door, by a plate with the symbol used
on Fire Control Plan.
5.1.1.6 Suitable space/stand for overhauling and maintenance of stored equipment to ensure its readiness
for immediate use shall be provided in the fire-fighting equipment room.
5.1.1.7 A set consisting of crowbar and fire axe shall be located inside accommodation spaces area,
near exits.
5.1.1.8 Fire protection warning plates with inscriptions: DANGER and NO SMOKING, written in
English and in the working language of the ship shall be provided on board. The plates of dimensions not
less than 840 x 600 mm shall be white with 20 mm borders. The letters shall be black and at least 120
mm in height.
5.1.1.9 Fire equipment protecting against the effect of fire, such as fire blankets, protective clothing
and gloves shall be supplied by the manufacturer with asbestos free declaration taking account of
Appendix 8 to the 2011 Guildelines for the Development of the Inventory of Hazardous Materials
[Resolution MEPC.197(62)].
Fire-fighting Equipment, Escape Equipment, Spares and Tools
5.1.2
117
Portable and Mobile Fire-Extinguishers
5.1.2.1 Powder or carbon dioxide portable fire-extinguishers shall have a capacity of at least 5 kg;
foam fire-extinguishers – a capacity of at least 9 l each. The total mass of a portable fire-extinguisher
shall not exceed 20 kg.
In spaces of small volumetric capacity, carbon dioxide portable fire-extinguishers having a capacity
less than 5 kg shall be applied, see 5.1.2.9.
Fire-extinguishers shall be of approved type, based on the guidelines specified in Res. A.951(23).
Only refills approved for the fire-extinguisher in question shall be used for recharging.
5.1.2.2 Fire-extinguishers with fire-extinguishing capability equivalent to that of 9 l foam fireextinguisher may be considered as equivalent.
Dry powder fire extinguishers having a capacity at least 4 kg and water mist fire extinguishers having
a capacity at least 6 l are considered as equivalent means to fight fires of group A.
5.1.2.3 While selecting fire-extinguishers for particular spaces, a risk of the specific group of fire shall be
taken into account (see the definition of group of fires A, B, C, D, F or K given in 1.2.17). Fire-extinguishers
shall be used as follows:
.1 accommodation spaces – group A;
.2 service spaces:
– drying rooms, pantries containing cooking appliances – group A or B;
– general lockers, mail and luggage rooms, specie rooms – group B;
– galleys – group B, additionally group F or K;
.3 control stations – group A, with additional extinguishing medium for electrical equipment fires;
.4 machinery spaces and cargo pump-rooms – group B, with additional extinguishing medium for
electrical equipment fires;
.5 workshops – group A or B;
.6 ro-ro spaces, vehicle spaces and special category spaces - group B;
.7 cargo spaces – groups A, B, C or D, depending on the carried cargoes;
.8 open decks – group B;
.9 helideck – group B.
The minimum number and distribution of fire-extinguishers in the spaces of the ships subject to
SOLAS Convention – see MSC.1/Circ.1275.
5.1.2.4 Fire-extinguishers containing an extinguishing medium which either by itself or under expected
conditions of use gives off toxic gases in such quantities as to endanger persons or gives off gases which
are harmful to the environment are not permitted.
5.1.2.5 Portable fire-extinguishers shall be provided with devices or lead-sealed safety pin to indicate
whether they have been used.
5.1.2.6 Portable fire-extinguishers shall be situated ready for use at easily visible places, which can be
reached quickly and easily at any time in the event of fire, and in such a way that their serviceability is
not impaired by weather, vibration or other external factors.
One of the portable fire-extinguishers intended for use in any space shall be stowed near the entrance
to that space.
It is recommended that the remaining portable fire-extinguishers in the public spaces and workshops
be located at or near the main entrances and exits.
5.1.2.7 In accommodation and service spaces, in machinery spaces of category A and galleys, the
minimum number of portable fire-extinguishers and their location shall be such that no point in the space
is more than 10 m walking distance from an extinguisher.
5.1.2.8 CO2 fire-extinguishers shall not be situated in accommodation spaces or in explosion
threatened spaces.
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Fire Protection
5.1.2.9 Fire equipment protecting against the effect of fire, such as fire blankets, protective clothing,
gloves, etc. shall be supplied with asbestos-free declaration, taking into account Appendix 8 of the
Guidelines for the development of the inventory of hazardous materials (resolution MEPC.197(62)).
5.1.2.10 The requirements concerning the arrangement of fire-extinguishers in ship spaces are
specified in the relevant provisions of Part V concerning particular spaces; these requirements are listed
in Table 5.1.6-1 and Table 5.1.6-2.
5.1.2.11 Mobile fire-extinguisher is a wheeled extinguisher with at least 20 kg extinguishing media
capacity, provided with an actuating device containing propellant gas which allows immediate and
independent fire-extinguishing operation.
In ships of less than 500 gross tonnage, mobile fire-extinguishers may be – subject to PRS’ approval –
used as an alternative fire arrangement for fire-extinguishing equipment required in particular chapters of
Part V.
5.1.2.12
Spare Fire-Extinguishers
In cargo ships of 150 gross tonnage and upwards engaged on international voyages and in passenger
ships, spare fire-extinguishers shall be provided for each type of used on board fire-extinguishers, in
number: 100% of the first 10 of the total required number of fire-extinguishers and 50% of the remaining
fire-extinguishers. However, not more than 60 total spare charges are required.
In ships engaged on domestic voyages, the number of spare fire-extinguishers shall be at least 50% of
the total required number of fire-extinguishers.
For each mobile fire-extinguisher which can be recharged on board one spare charge shall be
provided.
Spare charges shall be stored in the fire-fighting equipment locker or in other designated space.
5.1.3
Portable Foam Applicator Unit
5.1.3.1 Portable foam applicator unit shall consist of a foam nozzle/branch pipe, either of a self-inducing
type or in combination with a separate inductor, capable of being connected to the fire main by a fire hose, a
portable tank containing at least 20 l of foam concentrate and at least one foam concentrate spare tank of the
same capacity.
5.1.3.2 The nozzle/branch pipe and inductor shall be capable of producing effective foam suitable for
extinguishing an oil fire, at a foam solution rate of at least 200 l/min at the nominal pressure fire main.
5.1.3.3 Portable foam applicator unit shall be so designed as to withstand clogging, ambient
temperature changes, vibration, humidity, shock, impact and corrosion normally encountered on ships.
5.1.3.4 Foam concentrate shall be of an approved type. Foam concentrate is subject to type approval
tests to be performed in accordance with the guidelines specified in MSC.1/Circ.1312/Corr.1.
5.1.3.5 The values of the foam expansion and drainage time of the foam produced by the portable foam
applicator unit shall not differ by more than ± 10% of those determined in the circular, referred to above.
5.1.4
Fire-Fighter’s Outfit
5.1.4.1 Ships of 500 gross tonnage and upwards engaged on international voyages shall carry at least
two fire-fighter’s outfits.
Cargo ships of 150 gross tonnage and upwards shall carry at least one fire-fighter’s outfit, see
6.21.6.2.
5.1.4.2 Fire-fighter’s outfit shall consist of the following:
.1 personal equipment, comprising:
.1 protective clothing made of material protecting the skin from the heat, radiating from the
fire and from burns and scalding by flame or steam. The outer surface of the protective
clothing shall be water-resistant;
Fire-fighting Equipment, Escape Equipment, Spares and Tools
119
fire fighter's gloves;
fire fighter's boots;
fire-fighter’s helmet;
electric safety lamp of approved type, with a minimum burning period of 3 h. Electric safety
lamps used on tankers, as well as on other ships in hazardous areas shall be of an explosionproof type, in accordance with Publication IEC 60079;
.6 fireman's belt with snap fastener and fireman's axe in a sheath. The handle of the axe shall
be provided with high-voltage insulation;
breathing apparatus, which shall be a self-contained compressed-air-operated breathing apparatus, the
volume of air in the cylinders being at least 1200 l or other self-contained breathing apparatus capable
of functioning for at least 30 min. All air cylinders shall be fitted with coupling of the same type to
make them interchangeable.
The breathing apparatus shall be fitted with an audible and visual alarm or other device which
will alert the user before the volume of the air in the cylinder has been reduced to 200 l.
.2
.3
.4
.5
.2
5.1.4.3 Two spare charges shall be provided for each required breathing apparatus. Ships equipped
with suitably located means/compressors for fully recharging the air cylinders free from contamination
(fitted with filters preventing contamination) need to carry only one spare charge for each breathing
apparatus.
Means/compressors for recharging the air cylinder, as well as spare charges for breathing apparatus shall
be kept in the space in which breathing apparatus are located.
The location of means/compressor for recharging the air cylinders shall be indicated by a plate with
the symbol used on Fire Control Plan.
5.1.4.4 For each breathing apparatus, a fireproof lifeline at least 30 m in length shall be provided. The
lifeline shall be subjected to a strength test by static load of 3.5 kN for 5 min. The lifeline shall be
capable of being attached by means of snaphook to the harness of the apparatus or to a separate belt in
order to prevent the breathing apparatus from becoming detached when the lifeline is operated.
5.1.4.5 Fire-fighter’s outfits and sets of personal equipment shall be kept ready for use in an easily
accessible location that is permanently and clearly marked. Where more than one fire-fighter’s outfit or
more than one set of personal equipment are carried, they shall be stored in widely separated positions.
One set of fire-fighter’s outfit shall be available on the navigation bridge or in its vicinity.
5.1.4.6 On ships fitted with means/compressor for recharging the air cylinders, at least one spare cylinder
for recharging breathing apparatus during periodical operation tests of compressor shall be provided.
5.1.4.7 Ships which are not fitted with means/compressor for recharging the air cylinders, shall be
provided with at least one spare cylinder for each fire-fighting team, to be used during drills, in addition
to the spare cylinders required in 5.1.4.3.
5.1.4.8 Each ship subject to SOLAS Convention shall be provided with at least two two-way portable
radiotelephone apparatus for each fire-fighting team for fire-fighter’s communication. Those two-way
portable radiotelephone apparatus shall be of an explosion-proof type.
5.1.5
Emergency Escape Breathing Devices
5.1.5.1 Emergency escape breathing device is a supplied air or oxygen device only used for escape
from a compartment that has a hazardous atmosphere, dangerous to life and health.
The emergency escape breathing device shall not be used for fighting fires, entering oxygen deficient
spaces or tanks or worn by fire-fighters.
5.1.5.2 Emergency escape breathing device shall consist of a full face piece or a hood and oxygen or
air cylinder.
5.1.5.3
Full face piece shall form a complete seal around the eyes, nose and mouth.
120
Fire Protection
5.1.5.4
Hood shall completely cover the head, neck and may cover portions of the shoulders.
5.1.5.5 Hood and a full face piece shall be made of flame-resistant materials and include a clear
window for viewing.
5.1.5.6
Emergency escape breathing device shall have a service duration of at least 10 min.
5.1.5.7 Emergency escape breathing device shall be capable of being carried hands-free. When stored, the
device shall be suitably protected from the environment.
5.1.5.8 Emergency escape breathing devices shall be manufactured and marked in accordance with the
requirements stated in Chapter 2 of the FSS Code and the guidelines specified in MSC/Circ.849.
5.1.5.9 In all ships of 500 gross tonnage and upwards engaged on international voyages, there shall be
carried at least two emergency escape breathing devices on escape routes within accommodation spaces
(see 2.3.2.7), at least two emergency escape breathing devices in machinery spaces of category A (see
2.3.3.7), at least two spare devices and, for the purposes of drills, at least one emergency escape
breathing device located in a fire-fighting equipment locker.
For the arrangement of emergency escape breathing devices in passenger ships, see 6.1.6.12.
5.1.6
Providing of the Ships with Fire-Fighting Equipment and Emergency Escape Equipment
5.1.6.1 The list of requirements for fire-fighting equipment and emergency escape equipment on ships of
500 gross tonnage and upwards is given in Table 5.1.6-1.
5.1.6.2 The list of minimum requirements for fire-fighting equipment and emergency escape
equipment on ships of less than 500 gross tonnage is given in Table 5.1.6-2. The equipment arrangement
shall be in accordance with the requirements given in Table 5.1.6-1.
Table 5.1.6-1
Fire-fighting equipment for ships of 500 gross tonnage and upwards
Item
Equipment
Number and arrangement
1
2
3
1
Fire hoses complete with fittings in
accordance with the requirements
specified in 3.2.7:
1. for the water fire main system
2. for the foam fire-extinguishing
system
2
Fire hose nozzles:
1. water dual-purpose type,
producing solid and dispersed
water jet
2. water fog applicators
with extensions
a) equal to the number of the ship's hydrant valves;
b) for ships carrying dangerous goods, additionally
3 items;
c) on helideck, additionally 2 items;
d) spare ones – 20% of the required number of hoses, not less however than 1
item.
a) equal to the number of the ship's hydrants intended for foam supplying.
Water hoses mentioned in 1.1, may be included in this number, provided
that their diameter is adequate for foam supply.
– equal to the number of the ship's hydrant valves;
– spare ones – 20% of the required number of hose nozzles, not less however
than 1 item..
a) for passenger ships carrying more than 36 passengers:
– in each machinery space of category A – 3 items;
– for each 2 breathing apparatus – 1 item;
– in each special category space – 3 items;
b) in each ro-ro space – 3 items.
Fire-fighting Equipment, Escape Equipment, Spares and Tools
121
1
3
2
Portable foam applicator complying
with the requirements specified in
5.1.3 with a spare foam concentrate
container
4
Mobile fire-extinguisher:
a) in machinery spaces containing oil fired boilers
– 135 l or equivalent foam unit
or oil fuel units
– 45 l or equivalent foam unit
– one 135 l foam unit or equivalent dry powder unit with reeled hose;
– 50 kg or equivalent dry powder unit b) in machinery spaces containing internal combustion engines – one 45 l foam
– 45 kg or equivalent carbon dioxide
unit or equivalent dry powder unit.
unit
The unit is not required where the machinery space is fitted with a local
carbon dioxide extinguishing system with hose and nozzle;
c) in machinery spaces containing steam turbines or shielded steam turbines:
– 45 l foam units or equivalent dry powder units in the number sufficient to
supply extinguishing medium to each piece of equipment or firethreatened area.
The units are not required where the machinery space is fitted with a fixed
fire extinguishing system;
d) in machinery space with main electric propulsion motors – one 50 kg dry
powder unit or one 45 kg carbon dioxide unit;
e) helideck – two 50 kg dry powder units,
f) on crude oil carriers in rooms containing crude oil-fired boilers or cargo
slop fired boilers:
– one 135 l foam unit or one equivalent dry powder unit.
The units are not required where the machinery space is fitted with the foam
fire-extinguishing system, including fixed generators of foam, ensuring supply
of foam to front walls of boilers and to drip trays under the burners.
9 l foam fire-extinguishers
a) accommodation and service spaces:
or equivalent fire-extinguishers
– in corridors – the distance to a fire-extinguisher shall not exceed 25 m on
each deck and in each main vertical zone;
– one fire-extinguisher per each space of the total surface area not
exceeding 250 m2 or in the other part of deck containing public spaces;
– one fire-extinguisher in the sick-bay;
– one fire-extinguisher in the drying room and
in the pantry containing cooking appliances;
b) control stations:
– two fire-extinguishers in the wheelhouse
of the total surface area 50 m2 or more;
– one fire-extinguisher in the wheelhouse
of the total surface area less than 50 m2;
– one fire-extinguisher in a control station
other than the wheelhouse;
– one fire-extinguisher on the navigation bridge;
– one fire-extinguisher in the emergency generator space;
– one fire-extinguisher in the space of emergency fire pump driven by
internal combustion engine;
c) machinery spaces containing oil fuel-fired boilers:
– two fire-extinguishers in way of furnaces and in each space containing
oil fuel lines, and additionally one fire-extinguisher per each furnace
instead of the sand container;
5
3
a) in machinery spaces containing oil-fired boilers
– 1 set;
b) in machinery spaces containing internal combustion engines
– 1 set;
c) in special category spaces
– 1 set, not fewer, however, than 2 sets for a ship,
d) in ro-ro spaces
– 1 set, not fewer, however, than 2 sets for a ship.
122
1
6
7
8
Fire Protection
2
Fire-extinguishers
for fighting group F or K fires
(burning edible oil)
12 kg dry powder fire-extinguishers
3
d) machinery spaces with internal combustion engines:
– one fire-extinguisher at each level of engine room at port and starboard
side and additional extinguishers so positioned that the distance to the
fire-extinguisher does not exceed 10 m and two foam fire-extinguishers
are required at the floor level;
e) machinery spaces with turbines or shielded steam engines:
– one fire-extinguisher at each level of engine room at port and starboard
side and additional extinguishers so positioned that the distance to the
fire-extinguisher does not exceed 10 m and two foam fire-extinguishers
are required at the floor level;
f) spaces containing oil fuel firing
inert gas generators:
– two fire-extinguishers;
g) spaces containing oil fuel centrifuge:
– one fire extinguisher;
h) incinerating plant spaces:
– one fire-extinguisher;
i) cargo pump-rooms in oil tankers, fuel and liquid cargo stations, as well as
storage spaces of hoses for flammable liquids:
– two fire-extinguishers in the cargo pump room;
– one fire-extinguisher per each 30 m2 of space floor area;
k) processing spaces:
– one fire-extinguisher per each processing space
or per each 250 m2 of such space;
l) store-rooms of flammable paints and liquids:
– one fire-extinguisher;
m) workshops:
– one fire-extinguisher;
n) steering gear space:
– one fire-extinguisher;
o) special category spaces and ro-ro spaces:
– fire-extinguishers at each side spaced by 20 m from each other;
p) open deck on tankers:
– two fire-extinguishers;
q) open deck, open ro-ro spaces or open vehicle spaces – suitable number of
fire-extinguishers
Ships having galleys fitted with deep-fat cooking appliances:
– one fire-extinguisher in way of deep-fat cooking appliance.
a) ro-ro spaces:
– one fire-extinguisher at each side of each deck spaced by 20 m from
each other;
b) cargo spaces for the carriage of dangerous cargoes:
– one or two fire-extinguishers of the total content of 12 kg of dry powder.
5 kg carbon dioxide fire-extinguishers a) machinery spaces with main internal combustion engines:
or equivalent fire-extinguishers,
– one fire-extinguisher for engine rooms with engines of the total output
intended for extinction of fire in
less than 750 kW;
equipment under voltage
– two fire-extinguishers for engine rooms with engines of the total output
of 750 kW and over;
– two fire-extinguishers in way of each main distribution board;
b) machinery spaces with main propulsion electric motors:
– two fire-extinguishers per each motor;
c) machinery spaces with auxiliary power generating sets:
– one fire-extinguisher at each free standing unit or per each two units
installed side-by-side;
d) ECR:
– one fire-extinguisher and additionally
one fire-extinguisher if the main distribution
board is located in the ECR;
e) machinery spaces with electric motors:
– one fire-extinguisher for spaces of floor area less than 30 m2;
Fire-fighting Equipment, Escape Equipment, Spares and Tools
1
2
123
3
– two fire-extinguishers for spaces of floor area exceeding 30 m2;
f) switchboard space in the area of accommodation spaces:
– one fire extinguisher in the adjacent corridor;
g) contactor spaces:
– one fire extinguisher in each space;
9
Fire-fighter’s outfit complying
with the requirements specified
in 5.1.4
10
Fire blanket
11
12
Crowbar and fire axe
Portable international shore
connection for the supply of water to
the water fire main system
Portable exhaust fan
13
14
h) refrigerating plant spaces, spaces of air-conditioning units and fans where
electric equipment is installed:
– one fire-extinguisher for spaces of floor space less than 30 m2;
i) steering gear and thruster spaces:
– one fire-extinguisher in each space;
j) navigation bridge, radio stations and chartrooms:
– one fire-extinguisher in each space or in corridor near the entrance;
k) gyrocompass space:
– one fire-extinguisher in each space;
l) sick-bay, telephone exchange:
– one fire-extinguisher in each space;
m) galley:
– one fire-extinguisher in each space;
n) helideck
– four fire-extinguishers;
o) helicopter hangar:
– one fire-extinguisher.
p) in the proximity of electric panels:
– one fire-extinguisher for every panel having
a power of 20 KW or more.
a) all ships:
– two sets;
b) oil tankers:
– additionally two sets;
c) all passenger ships:
– additionally, two sets of fire-fighter’s outfit and two sets of personal
equipment per each 80 m of length of accommodation and service spaces
on the deck with greatest total length of such spaces;
d) passenger ships carrying more than 36 passengers:
– additionally, two sets per each main vertical zone;
e) ships with helideck:
– additionally two sets;
f) ships carrying dangerous goods:
– additionally two breathing apparatus.
a) navigation bridge – 1 item;
b) machinery spaces with engines of the total output:
– less than 400 kW – 1 item;
– 401 ÷ 800 kW – 2 items;
– more than 800 kW – 3 items;
c) helideck – 1 item;
d) a separate oil-fired boiler-room – 1 item;
e) each motor rescue boat – 1 item.
1 set – at each accommodation spaces deck.
1 item – required for all ships of gross tonnage 500 and more engaged on
international voyages.
one set – for gas removal from a space protected by fixed carbon dioxide
system, for ships without mechanical ventilation in protected spaces
Portable instrument for measuring
concentration of flammable vapours,
together with a set of spare parts and
calibration instrument.
2 items – in tankers carrying cargoes with ignition temperature not exceeding
60°C.
Portable instrument for measuring
concentration of oxygen
2 items – in tankers carrying cargoes with ignition temperature not exceeding
60°C.
124
Fire Protection
1
2
3
15
Exhaust gas analyser
16
17
18
Light fire hook
Salvage set, see paragraph 7.1.2.6
Carbon dioxide detector
19
20
21
Fire protection information board
Chemicals resisting clothing
Emergency escape breathing
device in accordance
with the requirements
of 5.1.5
1 instrument – for ships intended for the carriage
of mechanical vehicles with fuel in their tanks.
1 item – at helideck.
1 set – at helideck.
For ships fitted with fixed carbon dioxide fire-extinguishing systems:
1 carbon dioxide detector or portable carbon dioxide analyser;
10 tube-type carbon dioxide detectors.
CO2 detector is not required on ships provided with portable instrument for
measuring concentration of oxygen.
2 boards per ship.
For ships carrying dangerous goods – 4 sets.
a) all cargo ships of gross tonnage 500 and more engaged on international
voyages – accommodation spaces:
– 2 items located along escape routes;
– 2 items – spare device and 1 item – intended for drills, stored in firefighting equipment room;
b) all ships of gross tonnage 500 and more, and all passenger ships engaged on
international voyages – machinery spaces of category A:
– 2 items located along escape routes, additionally
1 item at each level of platform or deck;
– additionally 1 item in ECR, if ECR is a separate space.
– additionally 1 item in way of workshops being separate spaces.
c) passenger ships – accommodation spaces:
– 2 items in each main vertical zone;
– 1 item – spare device and 1 item – intended for drills, stored in fire-fighting
equipment room;
d) passenger ships carrying more than 36 passengers:
– additionally 2 items in each main vertical zone.
5
3
–
–
5
3
1
5
1
3
3
1
2
–
–
–
6
Fire gloves
5
5
Fire hose, dual-purpose nozzle
3
5
Fire-fighter's axe and crowbar
6
7
8
5
–
–
Fire-fighter's outfit
5
4
5
Fire blanket
3
4
3
5
Number equal to the number of
hydrants installed on shipboard
2
2
Cargo ship
Rescue ship, research vessel,
surveying vessel
Dredger
Pilot cutter, research inspector,
surveying vessel, tug with main
propulsion rating less than
368 kW
Tug and fire-fighting ship
with main propulsion rating
from 368 kW to 769 kW
Fishing vessel
Non-propelled barge
Propelled barge
45 l mobile foam fire
extinguisher
1
1
Watercraft type
Carbon dioxide fire extinguisher
Item
9 l foam fire extinguisher
or equivalent
Table 5.1.6-2
Fire-fighting equipment for ships less than 500 1) gross tonnage
7
2
8
12)
9
1
10
1
2
–
1
1
2
1
–
–
1
1
1
1
2
12)
1
1
2
+
1
–
–
–
1
–
1
1
1
1
125
Fire-fighting Equipment, Escape Equipment, Spares and Tools
9
10
11
12
1)
2)
Diver’s non-propelled barge,
floating workshop
Non-propelled hopper barge
Propelled hopper barge,
floating crane
House boat
2
1
–
1
–
1
1
2
4
1
3
–
–
1
2
–
–
–
1
–
1
3
1
–
1
–
1
1
Unless expressly provided otherwise by the flag State Administration.
Applies to ships of 150 gross tonnage and upwards.
5.2
Spare Parts and Tools
5.2.1
General Requirements
5.2.1.1 Spares and tools for fire-extinguishing systems shall be kept in a fire-fighting equipment locker
or other space provided for this purpose, e.g. fire-extinguishing station.
5.2.1.2 In spaces where fire-extinguishing systems pumps, compressors and motors are installed, a
place for keeping the spares and tools intended for maintenance of the systems shall be provided.
5.2.1.3
5.2.2
Spare parts shall be properly marked.
Recommended Numbers of Spares and Tools
Spare parts for fixed fire-extinguishing systems and tools for assembly shall be stored on board. The
recommended numbers of spares and tools are specified in Table 5.2.2, recommendations of the systems
components manufacturers shall also be taken into account.
Table 5.2.2
Recommended number of spares and tools
Item
Name of spare part or tool
Number required per ship
1
2
3
1
Water fire main system:
1. fire hoses of each length and diameter
used aboard the ship, fitted complete
with couplings and hose nozzle;
2. reducers with couplings for each size
fitted (if the ship is provided with
hydrants of various diameters);
3. hose couplings – for ships of less than
4000 gross tonnage;
4. hose couplings – for ships of 4000 gross
tonnage and upwards;
5. rubber joints for couplings, hose nozzles,
etc.;
6. hose clamps;
2
7. wrenches for hose couplings;
8. complete fire hydrant valves of each size
fitted.
Automatic sprinkler system:
1. sprinkler heads, complete;
2. wrenches for sprinkler heads (where
heads are fitted by means of special
wrenches);
3. parts for section valve.
– for ships of 1000 gross tonnage and
upwards – 5 items;
– for ships of less than 1000 gross tonnage –
3 items
2 items
2 items (for each diameter)
4 items (for each diameter)
5% of the total number, however no fewer
than 10 items
4 items (for ships of less than 300 gross
tonnage – 2 items)
2 items
2 items per each size
total number of heads:
< 300
300 ÷ 1000
> 1000
1 item per section
6
12
24
1 set, in accordance with delivery specification
126
Fire Protection
1
3
4
5
6
7
8
2
Water-spraying system and water-based
system :
1. spraying nozzles used in the system;
2. wrenches for spraying nozzles.
Foam fire-extinguishing system:
1. hydrant valves of each type and size
fitted;
2. air-foam nozzle;
3. isolating diaphragms;
4. disks for inserting diaphragms;
5. dosing device diaphragm
Carbon dioxide system:
1. adjustable spanner;
2. plugs for pipes leading from cylinder
valves to manifolds;
3. thrust bushes and nuts for protective
devices;
4. protective caps for cylinders;
5. non-return valves;
6. discharge nozzles of each type and size
fitted.
Inert gas system:
1. control valve (sluice valve) for admitting
gas into spaces protected;
2. parts for automatic control.
Dry powder system:
1. parts of nozzles and monitors means of
control;
2. nozzles of each type and size fitted;
3. special wrenches for the assembly of
valves, nozzles, monitors, spraying
nozzles.
Other gas fire-extinguishing systems:
1. plugs for pipes leading from cylinder
valves to manifolds;
2. thrust bushes and nuts for protective
devices;
3. protective caps for cylinders,
4. non-return valves;
5. O-rings;
6. discharge nozzles of each type and size
fitted;
7. pressure-reducing valves (or orifice
plates), for the number of items installed:
– less than 50 items
– 51 ÷ 100 items
– above 100 items
8. Pressure gauges, for the number of
cylinders installed:
– less than 50 items
– 51 ÷ 100 items
– above 100 items
3
5% of the total number of spraying nozzles
fitted
1 item
1 item
1 item
200% of the number of diaphragms fitted
10% of the total number of those fitted,
no fewer, however, than 2 items
1 item.
1 item
25% of the number of cylinders
10% of the number of cylinders
100% of the number of cylinders
5% of the number of cylinders,
no fewer, however, than 1 item
2 items
1 item
in accordance with delivery specification
1 set per each part
1÷2 items
1 set
25% of the number of cylinders
10% of the number of cylinders
100% of the number of cylinders
5% of the number of cylinders,
no fewer, however, than 1 item
1 set
2 items.
1 item
2 items
3 items
1 items
2 items
3 items
Fire-fighting Equipment, Escape Equipment, Spares and Tools
1
2
9
General requirements for all systems:
1. instruments and gauges, such as pressure
gauges and thermometers of each type
fitted in the systems;
2. sufficient quantity of packing material
for onboard repairs;
3. fuses for automatic closing fire doors and
dampers;
4. spares for pumps, fans, compressors and
motors serving fire-extinguishing
systems;
5. spare parts and tools for remote control
equipment of fire-extinguishing systems;
6. spare parts and tools for fire alarm
systems;
7. flame arresters (inserts) of each type and
size;
8. spare parts for electrical equipment of
fire-extinguishing systems.
10
Fire detection and fire alarm system:
– fire detectors.
3
1 item of each type
1 set
100% of automatic fire doors and dampers
closing upon activation of the fuses
in accordance with the requirements
specified in Annex to Part VI – Machinery
Installations and Refrigerating Plants
in accordance with technical specification
approved by PRS in each particular case
in accordance with technical specification
approved by PRS in each particular case
1÷2 sets
in accordance with the requirements
specified in Chapter 23 of Part VIII –
Electrical Installations and Control Systems
5% of the total of each type of fire detectors
used (no fewer, however, than 2 items).
127
128
6
Fire Protection
ADDITIONAL REQUIREMENTS
The requirements specified in Chapter 6 apply to ships which are to be assigned additional marks in
the symbol of class. These requirements shall be considered as supplementary to those applicable
requirements specified in Chapters 1, 2, 3, 4, 5 and 7 which constitute the basic requirements for all types
of ships.
6.1
Passenger Ships – Mark: PASSENGER SHIP
The requirements specified in sub-chapter 6.1 apply to all passenger ships, as well as to those ships
engaged on domestic voyages for which additional mark Class A, Class B, Class C or Class D in the
symbol of class is requested to be affixed, unless stated otherwise in sub-chapter 6.20 (for class definition,
see Part I – Classification Regulations).
Requirements of this subchapter apply also to passenger ships of less than 24 m in length.
6.1.1
Ship Construction
6.1.1.1
General Requirements
6.1.1.1.1 The construction of ceilings and linings shall be such as to make it possible, without
impairing the efficiency of the fire protection, for the fire patrols to detect any smoke originating in
concealed and inaccessible places, except where there is no risk of fire originating in such places. To
comply with this requirement, open-work linings or inspection hatches may be used.
6.1.1.1.2 The construction of light weight fire divisions (honeycomb type) made of steel may be used as
non load-bearing internal A Class divisions in accommodation and services spaces, provided they have
successfully passed the relevant standard fire test according to the FTP Code, Annex 1, Part 3. These
constructions shall not be used as an integral part of main fire zone bulkheads and stairway enclosures.
6.1.1.1.3 On passenger ships with cabin balconies of the accommodation spaces, non-load bearing partial
bulkheads which separate adjacent balconies shall be capable of being opened by the crew from each side for
the purpose of fighting fires.
6.1.1.2
6.1.1.2.1
Materials for Room Furnishing
Divisions 61, Ceilings and Linings
All linings, grounds, draught stops and ceilings shall be of non-combustible materials except in cargo
spaces, mail rooms, baggage rooms, saunas or refrigerated compartments of service spaces.
Partial bulkheads or decks used to subdivide a space for utility or artistic treatment shall also be of
non-combustible materials.
On passenger ships with cabin balconies of the accommodation spaces, linings, ceilings and partial
bulkheads or decks used to screen or to separate adjacent cabin balconies shall be of non-combustible
materials.
6.1.1.2.2
Requirements for the Use of Combustible Materials
A, B or C Class divisions in accommodation and service spaces which are faced with combustible
materials, facings, mouldings, decorations and veneers shall fulfil the requirements specified in 2.1.2.2.2 to
2.1.2.2.6 and in 6.1.1.2.3. Traditional wooden benches and wooden linings on bulkheads and ceilings,
however, are permitted in saunas and such materials need not be subject to the calculations of the gross
calorific value and total volume of the combustible materials required in 2.1.2.2.2 and 2.1.2.2.3.
Materials used for facing of balconies in the accommodation spaces need not be subject to the
calculations of the total volume of the combustible materials required in 2.1.2.2.3.
61 )
Interpretations regarding the use of materials for the construction of bulkheads in accommodation spaces on passenger ships are
given in MSC/Circ.1120 for SOLAS regulations II-2/5.3 and II-2/6.2.
Additional Requirements
6.1.1.2.3
129
Materials for Exposed Surfaces
Materials used for facing the exposed surfaces, specified in 2.1.2.2.4, shall have low flame-spread
characteristics. Exposed surfaces in corridors and stairway enclosures and of bulkhead and ceiling linings in
accommodation and service spaces (except saunas), as well as control stations shall also have low flamespread characteristics.
On passenger ships with cabin balconies of the accommodation spaces, exposed surfaces of cabin
balconies, except for natural hard wood decking systems shall have low flame-spread characteristics.
6.1.1.2.4
Maximum Total Mass of Combustible Materials in Spaces
For ships carrying not more than 36 passengers, it is recommended, in accordance with the guidelines
specified in MSC/Circ.1003, that the total mass of combustible materials per unit area in the space should
not exceed the values required for cargo ships, as set forth in 2.1.2.2.7.
For ships carrying more than 36 passengers, it is recommended that the total mass of combustible
materials per unit area in the space should not exceed the following values:
– 5 kg/m2 – for corridors, stairways and control stations;
– 15 kg/m2 – for accommodation spaces of low fire risk;
– 35 kg/m2 – for accommodation spaces of moderate and high fire risk;
– 45 kg/m2 – for service spaces surrounded by A Class divisions.
6.1.1.2.5
Paints, Varnishes and Other Finishes
On passenger ships with cabin balconies of the accommodation spaces, paints, varnishes and other
finishes used on exposed interior surfaces shall not be capable of producing excessive quantities of
smoke and toxic products, this being determined in accordance with the FTP Code, Annex 1, Part 2.
6.1.1.2.6
Primary Deck Coverings
On passenger ships with cabin balconies of the accommodation spaces, primary deck coverings shall be
made of the approved material which will not readily ignite, will not give rise to smoke or toxic or explosive
hazards at elevated temperatures, this being determined in accordance with the FTP Code, Annex 1, Part 6.
6.1.1.2.7
Furniture in Stairway Enclosures
Furniture in stairway enclosures shall be limited to seating. It shall be fixed, limited to six seats on each
deck in each stairway enclosure, made of materials resistant to the ignition and propagation of flame,
determined in accordance with the FTP Code, Annex 1, Part 8, and shall not restrict passenger escape
routes. Additional seating is permitted in the main reception area within a stairway enclosure if it is fixed,
non-combustible and does not restrict the passenger escape routes.
Furniture is not permitted in passenger and crew corridors forming escape routes in cabin areas.
However, lockers of non-combustible materials, providing storage for non-hazardous safety equipment
may be used.
Drinking water dispensers and ice cube machines are permitted in corridors provided they are fixed
and do not restrict the width of the escape routes. This also applies to decorative flower or plant
arrangements, statues or other objects of art such as paintings and tapestries in corridors and stairways.
6.1.1.2.8
Furniture and Furnishings on Cabin Balconies of Passenger Ships
Furniture and furnishings on cabin balconies, except for natural hard wood decking systems and exposed
surfaces of divisions and linings shall fulfil the requirements for the spaces with furniture and furnishings of
low fire risk specified in the definition 1.2.57. If this cannot be fulfilled, such balconies shall be protected by a
fixed fire detection and fire alarm and fixed pressure water-spraying systems – see 6.1.11.3.
6.1.1.3
Means of Control in Machinery Spaces of Category A
6.1.1.3.1 Means of control shall be provided for:
.1 opening and closure of skylights, closure of openings in funnels which normally allow exhaust
ventilation and closure of ventilator dampers;
130
Fire Protection
.2
.3
.4
.5
.6
stopping ventilating fans of machinery space ventilating system,
stopping forced and induced draught fans, oil fuel transfer pumps, oil fuel unit pumps,
lubricating oil service pumps, thermal oil circulating pumps and oil separators;
closing oil fuel pipes’ valves for storage, settling and daily service tanks situated in the
machinery space above the double bottom;
switching on ventilating fans intended for release of smoke from machinery space;
closing power-operated doors or actuating release mechanism on doors other than poweroperated watertight doors.
6.1.1.3.2 Means of control, specified in 6.1.1.3.1, shall be located outside machinery spaces, where
there is little likelihood that they will be cut off in the event of fire in the spaces they serve. Such controls
and the controls for any required fire-extinguishing system shall be situated at one control position or
grouped in as few positions as possible. Such positions shall have a safe access from the open deck.
6.1.1.3.3 The location of control devices in machinery spaces of category A shall be indicated by a
plate with the symbol used on Fire Control Plan.
6.1.1.4
Paints and Flammable Liquids Store-Rooms
On passenger ships carrying more than 36 passengers, store-rooms for paints and flammable liquids
shall be classified in category (14) – other space where flammable liquids are stored listed in 6.1.4.
Divisions and decks shall be of A Class and of fire integrity required for fire divisions depending on the
category of the adjacent spaces.
Such store-rooms shall not be located in way of accommodation spaces.
6.1.1.5
Galleys
Main galleys shall be classified as follows:
– on passenger ships carrying more than 36 passengers – in category (12), i.e. machinery spaces and
main galleys, listed in 6.1.4;
– on passenger ships carrying not more than 36 passengers – in category (9), i.e. service spaces of
greater fire risk, listed in 6.1.5.
Divisions and deck forming boundaries of such galleys shall be constructed from steel and of A Class
and of fire integrity required for fire divisions depending on the category of the adjacent spaces in
accordance with tables included in sub-chapters 6.1.4 and 6.1.5.
Lining of the ceiling in galleys shall be constructed from a non-combustible material and shall be
readily removable for cleaning the covered spaces where dust and grease may accumulate.
6.1.1.6
Open Deck Areas
On passenger ships carrying more than 36 passengers, the guidelines for evaluation of fire risk of
external areas, contained in the Annex to IMO MSC.1/Circ.1274, shall be taken into consideration during
the design of open deck areas (promenades, passenger areas for recreation and rest).
6.1.1.7
Construction and Arrangement of Saunas
6.1.1.7.1 The perimeter of the sauna shall be of A Class boundaries and may include changing rooms,
showers and toilets. The sauna shall be insulated to A-60 standard against other spaces except those
inside of the perimeter and spaces of categories (5), (9) and (10), specified in 6.1.4.2.
6.1.1.7.2 Bathrooms with direct access to saunas may be considered as part of them. In such cases, the
door between sauna and the bathroom need not comply with fire safety requirements.
6.1.1.7.3 The traditional wooden lining on the bulkheads and ceiling are permitted in the sauna. The
ceiling above the oven shall be lined with a non-combustible plate with an air gap of at least 30 mm. The
distance from the hot surfaces to combustible materials shall be at least 500 mm or the combustible
materials shall be protected (e.g. non-combustible plate with an air gap of at least 30 mm).
Additional Requirements
6.1.1.7.4
The traditional wooden benches are permitted to be used in the sauna.
6.1.1.7.5
The sauna door shall open outwards by pushing.
6.1.1.7.6
Electrically heated ovens shall be provided with a timer.
6.1.2
131
Main Vertical Zones and Horizontal Zones
6.1.2.1 On passenger ships carrying more than 36 passengers, the hull, superstructures and deckhouses
shall be subdivided into main vertical zones by A-60 Class divisions. Steps and recesses shall be kept to a
minimum, but where they are necessary, they shall also be A-60 Class divisions.
Where at one side of the main vertical zone division, there are spaces of category (5), (9) or (10) –
listed in 6.1.4 – the fire integrity standard of the division may be reduced to A-0.
Fire integrity standard of the main vertical zone division may be also reduced to A-0 where oil fuel
tanks are installed at both sides of the division.
6.1.2.2 On ships carrying not more than 36 passengers, the hull, superstructures and deckhouses in way
of accommodation and service spaces shall be subdivided into main vertical zones by A Class divisions.
These divisions shall have fire integrity in accordance with Tables 6.1.5-1 and 6.1.5-2.
6.1.2.3 The main vertical zone divisions above the bulkhead deck shall be, as far as practicable
coplanar with watertight subdivision bulkheads situated immediately below the bulkhead deck.
The length and width of the main fire division shall generally not exceed 40 m.
6.1.2.4 The length and breadth of the main vertical zones may be increased to maximum 48 m so that
the boundaries of the main vertical zones are in line with watertight bulkheads or that large public spaces
are situated in a single zone over its whole length, provided that the total surface area of the main vertical
zone on any deck does not exceed 1600 m2. The length or width of the main vertical zone is the
maximum distance between the furthermost points forming the division.
6.1.2.5 If a stairway serves two main vertical zones, the maximum length of one main vertical zone
shall be measured from the far side of the main vertical zone stairway enclosure. In that case, all
boundaries of the stairway enclosure shall be insulated as main vertical zone bulkheads and access doors
leading into the stairway shall be provided from each vertical zone. The stairway, however, need not be
included in calculating the size of the main vertical zone if it is treated as its own main vertical zone 62.
6.1.2.6 The number of main zone divisions of 48 m maximum length is not limited as long as they
comply with all the applicable requirements.
6.1.2.7 Main vertical zone divisions shall extend from the outer plating of one side to the outer plating
of the other side or other A-60 Class division and from deck to deck in each ‘tweendeck’ space.
6.1.2.8 Where a main vertical zone is subdivided by horizontal A Class divisions into horizontal zones
for the purpose of providing an appropriate barrier between zones protected by automatic sprinkler systems
and non-sprinklered zones of the ship, the horizontal divisions shall extend between adjacent main vertical
zone bulkheads and to the shell plating or exterior boundaries of the ship and shall be insulated in
accordance with the fire insulation and integrity values specified in Table 6.1.4-2 – for ships carrying more
than 36 passengers, and in Table 6.1.5-2 – for ships carrying not more than 36 passengers.
6.1.2.9 In ships designed for special purposes, such as automobile or railroad car ferries where the
provision of main vertical zone bulkheads would defeat the purpose for which the ship is intended,
equivalent protection, approved by PRS, shall be provided by dividing a space into horizontal zones.
Service spaces and ship stores shall not be located on ro–ro decks unless protected in accordance with the
applicable requirements.
62
Interpretations regarding the arrangement of stairways with respect to the main fire divisions and determining the length of
these divisions are given in MSC/Circ.1120 for SOLAS regulation II-2/9.2.2.1, see Appendix, figures 1 to 4.
132
Fire Protection
6.1.2.10 In ships with special category spaces, any such space shall additionally fulfil the relevant
requirements specified in sub-chapter 6.10.2. Where such compliance is inconsistent with the
requirements of sub-chapter 6.1, the requirements specified in sub-chapter 6.10.2 prevail.
6.1.3
Bulkheads within Main Vertical Zones
6.1.3.1 On ships carrying more than 36 passengers, all bulkheads which are not required to be A Class
divisions shall be at least B Class or C Class divisions as required in sub-chapter 6.1.4.
6.1.3.2 On ships carrying not more than 36 passengers, all bulkheads in way of the accommodation
spaces and service spaces which are not required to be A Class divisions shall be at least B Class or C Class
divisions in accordance with the requirements specified in sub-chapter 6.1.5.
Additionally, all corridor boundaries where not required to be A Class shall be B Class divisions and
shall extend from deck to deck, except that:
.1 where continuous B Class ceilings or linings are fitted on both sides of the bulkhead, the portion
of the bulkhead behind the continuous ceiling or lining shall be of a material which, in thickness
and composition, is acceptable in the construction of B Class divisions but which is required to
meet B Class integrity standards only in so far as is reasonable and practicable in the opinion of
PRS 63; and
.2 where a ship is protected by an automatic sprinkler system in accordance with the requirements
specified in 3.3, the corridor bulkheads may terminate at a ceiling in the corridor, provided that
such bulkheads and ceilings are of B Class standard and comply with the requirements specified
in sub-chapter 6.1.5. All doors and frames in such bulkheads shall be of non-combustible
materials and shall have the same fire integrity as bulkheads in which they are fitted.
6.1.3.3 Bulkheads required to be B Class divisions, except corridor bulkheads, specified in 6.1.3.2,
shall extend from deck to deck and from shell to shell or other boundaries unless continuous B Class
ceilings or linings fitted on both sides of the bulkhead are at least of the same fire integrity as the
bulkhead, in which case the bulkhead may terminate at the continuous ceiling or lining 64.
If an air gap between cabins results in an opening in the continuous B-15 Class ceiling, the bulkheads
on both sides of the air gap shall be of B-15 Class standard.
6.1.3.4 Atriums shall be protected by fire divisions as follows:
.1 the atrium shall be within enclosures formed of A Class divisions having the fire integrity as
prescribed in Tables 6.1.4-1 and 6.1.5-1;
.2 decks separating spaces within the atrium shall have the fire integrity as prescribed in Tables
6.1.4-2 and 6.1.5-2, depending on the adjacent spaces category.
6.1.4
Fire Integrity of Bulkheads and Decks in Ships Carrying
more than 36 Passengers
6.1.4.1 The minimum fire integrity of vertical divisions and bulkheads separating adjacent spaces shall
fulfil the requirements specified in Table 6.1.4-1, whereas of decks separating adjacent spaces – with the
requirements specified in Table 6.1.4-2.
Where, due to any particular structural arrangements in the ship, difficulty is experienced in
determining, from the Tables, the minimum fire integrity value of any division, such values are subject to
PRS consideration in each particular case.
63
64
The extension of the bulkhead shall be made of non-combustible material and the construction of the extension shall
correspond to the fire class of extended bulkhead. Where extension of the division is of B-0 Class, it may be constructed of
steel sheet with 1 mm in thickness, provided it is properly covered (e.g. with rockwool). Alternatively, extension of B-0
division may be made of rockwool (having a mass density not less than 100 kg/m3 and 50 mm in thickness). provided it is
properly supported and fixed.
Guidelines for the construction of bulkheads within accommodation spaces in the main vertical zone are given in
MSC/Circ.917/Corr.1.
Additional Requirements
133
6.1.4.2 The principles, specified in 2.2.2.2, as well as those given below, shall govern the application
of the Tables.
With respect to category (5) spaces – the application of the requirements for fire integrity of Table
6.1.4-1 to the external bulkheads of deckhouses and superstructures, and of Table 6.1.4-2 to open decks
is subject to PRS agreement in each particular case. In no case the requirements of category (5) of the
tables, referred to above, necessitate enclosure of spaces which need not be enclosed.
Spaces have been subdivided into 14 categories according to their fire risk:
(1) Control stations:
– spaces containing emergency sources of power and lighting (battery rooms and spaces
containing emergency power generating units);
– navigation bridge and chartroom, including navigation equipment room (radar transmitter);
– spaces containing the ship’s radio equipment;
– fire control station;
– control rooms for propulsion machinery when located outside the propulsion machinery space;
– spaces containing centralised fire alarm equipment;
– spaces containing centralised public address system stations and equipment.
(2) Stairways – interior stairways, lifts, totally enclosed emergency escape trunks and escalators (other
than those wholly contained within the machinery spaces) and enclosures thereto. A stairway which
is enclosed at one level only shall be regarded as part of the space from which it is not separated by a
fire door.
(3) Corridors – passenger and crew corridors and lobbies.
(4) Embarkation stations and external escape routes:
– lifeboat and liferaft stations;
– open deck spaces and enclosed promenades forming lifeboat and liferaft embarkation and
lowering stations;
– internal and external assembly stations;
– external stairs and open decks used for escape routes;
– ship's sides to the minimum draught waterline, superstructures and deckhouses situated below
or in the vicinity of liferafts and escape chutes.
(5) Open deck spaces:
– open deck spaces and enclosed promenades clear of lifeboat and liferaft embarkation and
lowering stations. The enclosed promenades shall constitute no fire risk which means that
furnishings are restricted to deck furniture. In addition, such spaces shall be naturally ventilated
by permanent openings;
– air spaces (the spaces outside superstructures and deckhouses).
(6) Accommodation spaces of minor fire risk:
– cabins containing furniture and furnishings of restricted fire risk;
– offices and dispensaries containing furniture and furnishings of restricted fire risk;
– public spaces containing furniture and furnishings of restricted fire risk and having a deck area
of less than 50 m2.
(7) Accommodation spaces of moderate fire risk:
– spaces as in category (6), however containing furniture and furnishings of other than restricted
fire risk;
– public spaces containing furniture and furnishing of restricted fire risk and having a deck area
of 50 m2 or more;
– isolated lockers and small store-rooms in accommodation spaces having areas less than 4 m2 (in
which flammable liquids are not stowed);
– motion picture projection and film stowage rooms;
– diet galleys (containing no open flame) 65;
– cleaning gear lockers (in which flammable liquids are not stowed);
– laboratories (in which flammable liquids are not stowed);
– pharmacies;
65
Such galleys shall not contain appliances listed in footnote 1) to 1.2.51.
134
Fire Protection
small drying rooms (having a deck area of 4 m2 or less);
specie rooms;
operating rooms;
identifiable spaces containing electrical distribution boards
(having a deck area of 4 m2 or less).
(8) Accommodation spaces of greater fire risk:
– public spaces containing furniture and furnishings of other than restricted fire risk and having a
deck area of 50 m2 or more;
– hair-dresser’s shops and beauty parlours;
– saunas.
– sale shops.
(9) Sanitary and similar spaces:
– communal sanitary facilities, showers, baths, water closets, etc.;
– small laundry rooms;
– indoor swimming pool areas;
– isolated pantries containing no cooking appliances in accommodation spaces – see the definition
given in 1.2.51;
Note: Private sanitary facilities are considered a portion of the space in which they are located.
(10) Tanks, voids and auxiliary machinery spaces having little or no fire risk:
– water tanks forming part of the ship’s structure;
– voids and cofferdams;
– auxiliary machinery spaces which do not contain machinery having a pressure lubrication
system and where storage of combustibles is prohibited, such as:
– ventilation fans and air conditioning rooms,
– windlass room,
– steering gear room,
– stabiliser equipment room,
– thruster room,
– electrical propulsion motor room,
– rooms containing section switchboards and purely electrical equipment other than oil-filled
electrical transformers (above 10 kVA),
– shaft alleys and pipe tunnels,
– spaces for pumps and refrigeration machinery, not handling or using flammable liquids;
– closed trunks serving the spaces listed above, as well as other trunks, such as pipe and cable
trunks.
(11) Auxiliary machinery spaces, cargo spaces, cargo and other oil tanks and other similar spaces
of moderate fire risk:
– cargo oil tanks;
– cargo holds, trunkways and hatchways;
– refrigerated chambers;
– oil fuel tanks (where installed in a separate space with no machinery);
– shaft alleys and pipe tunnels allowing storage of combustibles;
– auxiliary machinery spaces as in category (10) which contain machinery having a pressure
lubrication system or where storage of combustibles is permitted;
– oil fuel filling stations;
– spaces containing oil-filled electrical transformers (above 10 kVA);
– spaces containing turbine or reciprocating steam engine driven auxiliary generators and small
internal combustion engines of the power output up to 110 kW driving emergency generators,
sprinkler, water-spraying or fire pumps, bilge pumps, etc.;
– closed trunks serving the spaces listed above.
(12) Machinery spaces and main galleys:
– main propulsion machinery rooms (other than electric propulsion motor rooms) and boiler
rooms;
–
–
–
–
Additional Requirements
135
– auxiliary machinery spaces other than those in categories (10) and (11) which contain internal
combustion machinery or other oil-burning, heating or pumping units;
– main galleys and annexes;
– trunks and casings to the spaces listed above.
(13) Store-rooms, workshops, pantries, etc.:
– main pantries not annexed to galleys – see the definition given in 1.2.56, including the footnote;
– main laundry;
– large drying rooms, having a deck area of more than 4 m2;
– miscellaneous store-rooms;
– mail and baggage rooms;
– garbage rooms;
– workshops, not forming part of machinery spaces, galleys, etc.;
– lockers and store-rooms having areas greater than 4 m2, not intended for the storage of
flammable liquids;
– refrigerated provision chambers;
– garbage handling and storage spaces.
(14) Other spaces in which flammable liquids are stowed:
– paint lockers;
– store-rooms containing flammable liquids (including dyes, medicines, etc.);
– laboratories (in which flammable liquids are stowed).
136
Fire Protection
Table 6.1.4-1
Fire integrity of bulkheads separating adjacent spaces (not bounding either main vertical zones or horizontal zones)
Spaces
Control stations
(1)
Stairways
(2)
Corridors
(3)
Evacuation stations and external escape
routes
(4)
Open deck spaces
(5)
Accommodation spaces of minor fire
risk
(6)
Accommodation spaces of moderate
fire risk
(7)
Accommodation spaces of greater fire
risk
(8)
Sanitary and similar spaces
(9)
Tanks, voids and auxiliary machinery
spaces having little or no fire risk (10)
Auxiliary machinery spaces, cargo
spaces, cargo and other oil tanks and
other similar spaces of moderate fire
risk
(11)
Machinery spaces and main galleys
(12)
Store-rooms, workshops, pantries etc.
(13)
Other spaces in which flammable
liquids are stowed
(14)
(1)
B-0 a)
(2)
A-0
A-0 a)
(3)
A-0
A-0
B-15
(4)
A-0
A-0
A-60
(5)
A-0
A-0
A-0
A-0
–
(6)
A-60
A-0
B-15
A60b)d)
A-0
(7)
A-60
A-15
B-15
A60b)d)
A-0
(8)
A-60
A-15
B-15
A60b)d)
A-0
(9)
A-0
A-0 c)
B-15
A-0 d)
(10)
A-0
A-0
A-0
A-0
A-0
(11)
A-60
A-15
A-15
A60b)
A-0
(12)
A-60
A-30
A-30
A60b)
A-0
(13)
A-60
A-15
A-0
A60b)
A-0
(14)
A-60
A-30
A-30
A60b)
A-0
A-0
B-0
B-0
B-0
C
A-0
A-0
A-30
A-0
A-30
B-0
B-0
C
A-0
A-15
A-60
A-15
A-60
B-0
C
C
A-0
A-0
A-30
A-0
A-60
A-0
A-15
A-0
A-60
A-0
A-0 a)
A-0
A-0
A-0
A-0
A-0 a)
A-0
A-0
A-15
A-0 a)
A-0
A-0 a)
A-60
A-0
A-30
137
Additional Requirements
Table 6.1.4-2
Fire integrity of decks separating adjacent spaces (not forming steps in main vertical zones
nor bounding horizontal zones)
Space above →
Space below ↓
Control stations
(1)
Stairways
(2)
Corridors
(3)
Evacuation stations and external escape
routes
(4)
Open deck spaces
(5)
Accommodation spaces of minor fire risk
(6)
Accommodation spaces of moderate fire
risk
(7)
Accommodation spaces of greater fire risk
(8)
Sanitary and similar spaces
(9)
Tanks, voids and auxiliary machinery spaces
having little or no fire risk
(10)
Auxiliary machinery spaces, cargo spaces,
cargo and other oil tanks and other similar
spaces of moderate fire risk
(11)
Machinery spaces and main galleys
(12)
Store-rooms, workshops, pantries, etc. (13)
Other spaces in which flammable liquids are
stowed
(14)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
A-30
A-0
A-15
A-30
A-0
A-0
A-15
–
A-0 a)
A-0
A-0
A-60
A-0
A-0
A-0
A-0
A-0
A-0
A-15
A-0
A-15
A-30
A-0
A-15
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-60
A-30
A-30
A-0
A-0
A-0
A-60
A-30
A-30
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
–
–
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-60
A-15
A-0
A-60
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-60
A-15
A-15
A-60
A-0
A-0
A-15
A-15
A-0
A-0
A-0
A-0
A-0
A-0
A-60
A-0
A-15
A-0
A-15
A-0
A-60
A-0
A-0
A-0
A-15
A-0
A-15
A-0
A-30
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0 a)
A-0
A-0
A-0
A-0
A-60
A-60
A-60
A-60
A-0
A-0
A-15
A-30
A-0
A-0
A-0 a)
A-0
A-0
A-30
A-60
A-60
A-60
A-30
A-60
A-15
A-60
A-60
A-0
A-0
A-60
A-15
A-60
A-30
A-60
A-30
A-0
A-0
A-0
A-0
A-30
A-0
A-30a)
A-0
A-0
A-0
A-60
A-0
A-60
A-60
A-60
A-60
A-0
A-30
A-60
A-60
A-0
A-0
A-0
A-0
A-0
A-0
138
Fire Protection
Notes to Table 6.1.4-1 and Table 6.1.4-2:
a)
Where adjacent spaces are in the same numerical category, a bulkhead or deck between such spaces may not be fitted if
deemed unnecessary by PRS. For example, in category (12) a bulkhead need not be required between a galley and its
annexed pantries provided the pantry bulkhead and decks maintain the integrity of the galley boundaries. A bulkhead is,
however, required between a galley and machinery space even though both spaces are in category (12).
b)
The ship’s side, to the waterline in the lightest seagoing condition, superstructure and deckhouse sides situated below and
adjacent to liferafts and evacuation slides may be reduced to A-30 Class.
c)
Where public toilets are installed completely within the stairway enclosure, the public toilet bulkhead within the stairway
enclosure may be of B Class integrity.
d)
Where spaces of categories (6), (7), (8) and (9) are located completely within the outer perimeter of the assembly station, the
bulkheads of these spaces are permitted to be of B-0 Class integrity. Control positions for audio, video and light installations
may be considered as part of the assembly station.
6.1.5
Fire Integrity of Bulkheads and Decks in Ships Carrying
not more than 36 Passengers
6.1.5.1 The minimum fire integrity of bulkheads separating adjacent spaces shall be in accordance with
Table 6.1.5-1, whereas the minimum fire integrity of decks – in accordance with Table 6.1.5-2.
6.1.5.2 The requirements specified in paragraph 2.2.2.2 shall govern application of the above
mentioned tables.
Adjacent spaces have been subdivided into 11 categories according to their fire risk:
(1) Control stations:
– spaces containing emergency sources of power and lighting (battery rooms and spaces
containing emergency power generating units);
– wheelhouse and chartroom including the space containing radar transmitter;
– spaces containing the ship's radio equipment;
– fire control stations;
– control rooms for propulsion machinery, where located outside the machinery space;
– spaces containing centralised fire alarm equipment.
(2) Corridors – passenger and crew corridors and lobbies.
(3) Accommodation spaces – see 1.2.51, excluding corridors.
(4) Stairways – interior stairways, lifts, totally enclosed emergency escape trunks and escalators
(except those wholly contained within the machinery spaces) and enclosures thereto. A stairway
which is enclosed at one level only are regarded as part of the space from which it is not separated
by a fire door.
(5) Service spaces (low fire risk):
– lockers and store-rooms having areas less than 4 m2, not having provisions for the storage of
flammable liquids, as well as drying rooms and laundries;
– identifiable spaces containing distribution boards having a deck area of less than 4 m2.
(6) Machinery spaces of category A – see 1.2.65.
(7) Other machinery spaces:
– machinery spaces, specified in sub-chapter 1.2.64, excluding machinery spaces of category A;
– electrical equipment rooms (e.g. auto-telephone exchange, air-conditioning duct spaces).
(8) Cargo spaces – all spaces used for cargo (including cargo oil tanks) and trunkways and hatchways
to such spaces other than special category spaces.
(9) Service spaces (high fire risk) – galleys, pantries containing cooking appliances (see the
definition given in 1.2.56, including the footnote), paint and readily ignitable material rooms,
lockers and store-rooms having areas of 4 m2 or more, flammable liquids store-rooms, saunas, as
well as workshops other than those forming part of the machinery spaces, garbage handling and
storage scraps.
(10) Open decks:
– open deck spaces and enclosed promenades having little or no fire risk. To be considered in this
category, the enclosed promenades shall constitute no significant fire risk, which means that
furnishings are restricted to deck furniture. In addition, such spaces shall be naturally ventilated
by permanent openings;
Additional Requirements
139
– air spaces (spaces outside superstructures and deckhouses).
(11) Special category and ro-ro spaces – see 1.2.49 and 1.2.54.
6.1.5.3 External boundaries which are required in 2.1.1 to be of steel or other equivalent material may
be pierced for the fitting of windows and sidescuttles, provided that there is no requirement for such
boundaries of passenger ships to have A Class integrity. Similarly, in such boundaries which are not
required to have A Class integrity, doors may be constructed of materials regarded as suitable.
6.1.5.4 The construction and the arrangements of saunas shall fulfil the requirements specified in
6.1.1.7. The sauna shall be insulated to A-60 standard against other spaces except those inside of the
perimeter and spaces of categories (5), (7) and (10), specified in 6.1.5.2.
140
Fire Protection
Table 6.1.5-1
Fire integrity of bulkheads separating adjacent spaces
Control stations
Corridors
Spaces
(1)
(2)
(1)
A-0c)
–
(2)
A-0
Ce)
(3)
A-60
B-0e)
Accommodation spaces
(3)
–
–
Ce)
Stairways
(4)
–
–
–
Service spaces (low fire risk)
Machinery spaces of category A
Other machinery spaces
Cargo spaces
Service spaces (high fire risk)
Open decks
Special category spaces and ro-ro spaces
(5)
(6)
(7)
(8)
(9)
(10)
(11)
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
(4)
A-0
A-0a)
B-0e)
A-0a)
B-0e)
A-0a)
B-0e)
–
–
–
–
–
–
–
(5)
A-15
B-0e)
(6)
A-60
A-60
(7)
A-15
A-0
(8)
A-60
A-0
B-0e)
A-60
A-0
A-0
A-0a)
B-0e)
Ce)
–
–
–
–
–
–
A-60
A-0
A-0
A-60
*
–
–
–
–
–
A-0
A-0
A-0b)
–
–
–
–
A-0
A-0
A-0
*
–
–
–
(9)
A-60
A-15
A-0d)
A-15
A-0d)
A-15
A-0d)
A-0
A-60
A-0
A-0
A-0b)
–
–
(10)
*
*
(11)
A-60
A-30g)
*
*
A-30
A-0d)
A-30g)
*
*
*
*
*
–
–
A-0
A-60
A-0
A-0
A-30
A-0
A-30g)
141
Additional Requirements
Table 6.1.5-2
Fire integrity of decks separating adjacent spaces
Space above …..→
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(1)
(2)
(3)
A-0
A-0
A-60
A-0
*
A-0
A-0
*
*
A-0
A-0
A-0
A-0
*
*
A-60
A-60
A-60
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
A-0
*
*
*
Stairways
Service spaces (low fire risk)
Machinery spaces of category A
Other machinery spaces
Cargo spaces
Service spaces (high fire risk)
(4)
(5)
(6)
(7)
(8)
(9)
A-0
A-15
A-60
A-15
A-60
A-60
A-0
A-0
A-60f)
*
A-0
A-0
A-0
A-0
A-30
A-0
*
A-0
A-0
A-0
A-60
A-0
A-0
A-0
*
*
*
*
*
*
*
A-60
*
A-0
A-60
A-0
A-0
A-30
A-0d)
*
A-30g)
A-60
A-60
*
A-0
A-0d)
A-60
(10)
(11)
A-0
A-0
A-60
A-0
A-0
A-30
A-0d)
*
A-30
A-0d)
A-0
*
A-60
A-0
A-0
A-0
Open decks
Special category spaces and ro-ro spaces
A-0
A-0
A-60
A-0
A-0
A-30
A-0d)
*
A-30g)
A-60g)
A-30g)
A-30
A-0d)
A-30g)
A-0
A-60
A-0
A-0
A-30
*
A-0
*
A-60g)
*
A-0
*
A-0
*
A-30
–
A-0
A-0
A-30g)
Space below …..↓
Control stations
Corridors
Accommodation spaces
142
a)
b)
c)
d)
e)
f)
g)
*
Fire Protection
Notes to Table 6.1.5-1 and Table 6.1.5-2:
For clarification of the division type – see paragraphs 2.2.3 and 2.2.4.
Where spaces are of the same numerical category, a bulkhead or deck of the rating shown in the Tables is only required
when the adjacent spaces are for a different purpose, e.g. in category (9), a galley next to other galley does not require a
bulkhead, but a galley next to a paint room requires A-0 bulkhead.
Bulkheads separating the navigation bridge, chartroom from each other may be of B-0 rating. No fire rating is required for
the partitions separating the navigation bridge and the safety centre when the latter is within the navigation bridge.
In determining the applicable fire integrity standard of a boundary between two spaces both of which are protected by
automatic sprinkler systems, in accordance with the requirements specified in sub-chapter 3.3, the lesser of the two values
given in the tables may apply.
Where the particular division forms a boundary of the main vertical fire zone in accordance with the requirements specified
in paragraph 6.1.2.1, A-0 Class shall apply.
If the machinery space in category (7) has little fire risk, A-0 Class may apply. For determining such machinery space – see
6.1.4.2(10).
Effective as of 1 July 2014.
Where an asterisk appears in the tables, the division is required to be of steel or other equivalent material, although it is not
required to be of A Class standard. However, where a deck, except in a category (10) space, is penetrated for the passage of
electric cables, pipes and vent ducts, such penetrations shall be made tight to prevent the passage of flame and smoke.
Divisions between control stations (emergency generators) and open decks may have air intake openings without means for
closure, unless a fixed gas fire-fighting system is fitted.
6.1.6
6.1.6.1
Means of Escape
Width of Stairways
Stairways shall not be less than 900 mm in clear width. The minimum clear width of stairways shall
be increased by 10 mm for every one person provided in excess of 90 persons. The maximum clear width
between handrails shall not exceed 1800 mm. The total number of persons to be evacuated by such
stairways shall be assumed to be two thirds of the crew and the total number of passengers in the areas
served by such stairways. The width of stairway shall be calculated in accordance with the provisions of
the FSS Code, Chapter 13, paragraph 2.1.2.
The stairway shall not decrease in width in the direction of evacuation to the assembly station, except
in the case of several assembly stations in one main vertical zone – the stairway width shall not decrease
in the direction of the evacuation to the most distant assembly station.
6.1.6.2
Handrails
Stairways shall be fitted with handrails on each side. The maximum clear width between handrails shall
be 1800 mm.
6.1.6.3
Alignment of Stairways
All stairways sized for more than 90 persons shall be aligned fore and aft.
6.1.6.4
Vertical Rise and Inclination
Stairways shall not exceed 3.5 m in vertical rise without the provision of a landing and shall not have
an angle of inclination greater than 45°.
6.1.6.5
Landings
Landings at each deck level shall not be less than 2 m2 in area and shall be increased by 1 m2 for
every 10 persons provided for in excess of 20 persons, however need not exceed 16 m2, except for those
landings servicing public spaces having direct access to the stairway enclosure. Intermediate landings
shall be sized in the same manner as stairways.
6.1.6.6
Doorways and Corridors
Doorways 66, corridors and intermediate landings included in means of escape shall be sized in the
same manner as stairways.
66 )
Not applicable to cabin doors.
Additional Requirements
143
Aggregate width of stairway exit doors to the assembly station shall not be less than the aggregate width
of stairways serving this deck.
6.1.6.7
Evacuation Routes to Embarkation Deck
It is recognised that the evacuation routes to the embarkation deck may include an assembly station. In
that case, consideration shall be given to the fire protection requirements and sizing of corridors and doors
from the stairway enclosure to the assembly station and from the assembly station to the embarkation deck,
noting that evacuation of persons from assembly stations to embarkation positions will be conducted in
small controlled groups.
6.1.6.8
Routes from Assembly Station to Survival Craft Embarkation
Position
Where passengers and crew are held at an assembly station which is not at the survival craft
embarkation position, the dimension of stairway width and doors from the assembly station to this
position shall be based on the number of persons in the controlled group. The width of these stairways
and doors need not exceed 1.5 m unless larger dimensions are required for evacuation of these spaces
under normal conditions.
6.1.6.9
Means of Escape Plans
For each passenger ship, Means of Escape Plan shall be provided indicating the following:
.1 number of crew and passengers in all normally occupied spaces;
.2 number of crew and passengers expected to escape by stairway and through doorways, corridors
and landings;
.3 assembly stations and survival craft embarkation positions
.4 primary and secondary means of escape;
.5 width of stairways, doors, corridors and landing areas.
Means of Escape Plan shall be accompanied by detailed calculation for determining the width of
escape stairways, doors, corridors and landings.
It is recommended that the width of each means of escape be calculated in accordance with an
evacuation analysis based on the guidelines specified in MSC.1/Circ.1238.
6.1.6.10
6.1.6.10.1
Means of Escape from Accommodation Spaces, Service Spaces
and Control Stations
Escape from Spaces below Bulkhead Deck
6.1.6.10.1.1 Below the bulkhead deck two means of escape, at least one of which shall be independent
of watertight doors, shall be provided from each watertight compartment or similarly restricted space or
group of spaces. In well-grounded cases, one of the means of escape for crew spaces that are entered only
occasionally may be waived if the required escape route is independent of watertight doors.
6.1.6.10.1.2 Where, in accordance with 6.1.6.1.10.1.1, PRS has waived the requirement to provide two
means of escape, this sole means of escape shall provide safe escape. However, stairways shall not be
less than 0.8 m in clear width with handrails on both sides.
6.1.6.10.2
Escape from Spaces Above Bulkhead Deck
Above the bulkhead deck there shall be at least two means of escape from each main vertical zone or
similarly restricted space or group of spaces at least one of which shall give access to a stairway forming
a vertical escape.
6.1.6.10.3
Direct Access to Stairway Enclosures
Stairway enclosures in accommodation and service spaces shall have direct access from the corridors
and be of a sufficient area to prevent congestion, having in view the number of persons likely to use them
in an emergency. Within the perimeter of such stairway enclosures, only public toilets, lockers of non-
144
Fire Protection
combustible material providing storage for nonhazardous safety equipment and open information
counters are permitted.
Only corridors, lifts, public toilets, special category spaces and open ro-ro spaces to which any
passengers can have access, other than escape stairways required by 6.1.6.10.4.1 and external areas are
permitted to have direct access to these stairway enclosures and external areas.
Public spaces may also have direct access to stairway enclosures, except for the backstage spaces of a
theatre.
Small corridors or "lobbies" used to separate an enclosed stairway from galleys or main laundries may
have direct access to the stairway, provided they have a minimum deck area of 4.5 m2, a width of not less
than 0.9 m and contain a fire hose station.
6.1.6.10.4
Details of Means of Escape
Means of escape shall fulfil the following requirements:
.1 at least one of the means of escape (from the spaces located below and above the bulkhead deck)
required by 6.1.6.10.1.1 and 6.1.6.10.2 shall consist of a readily accessible enclosed stairway,
which shall provide continuous fire shelter from the level of its origin to the appropriate lifeboat
and liferaft embarkation decks, or to the uppermost weather deck if the embarkation deck does
not extend to the main vertical zone 67 being considered. In the latter case, direct access to the
embarkation deck by way of external open stairways and passageways shall be provided and
shall have emergency lighting and slip-free surfaces underfoot. Boundaries facing external open
stairways and passageways forming part of an escape route and boundaries in such a position that
their failure during a fire would impede escape to the embarkation deck shall have fire integrity,
including insulation values, in accordance with Tables 6.1.4-1 and 6.1.4-2, as appropriate;
.2 access from the stairway enclosures to the lifeboat and liferaft embarkation areas shall be
provided either directly or through internal routes which have fire integrity and insulation values
for stairway enclosures as determined by Tables 6.1.4 and 6.1.5, as appropriate;
.3 stairways serving only a space and a balcony in that space are not considered as forming one of
the required means of escape;
.4 each level within an atrium shall have two means of escape, one of which shall give direct access
to an enclosed vertical means 68 of escape meeting the requirements specified in sub-paragraph .1;
.5 widths, number and continuity of escapes shall be in accordance with the requirements in the FSS
Code, Chapter 13.
6.1.6.10.5
Marking of Escape Routes
In addition to the emergency lighting, in passenger accommodation spaces, the means of escape,
including stairways and exits, shall be marked by low-location lighting or photoluminescent strip
indicators placed not more than 0.3 m above the deck at all points of the escape route including angles
and intersections. The lighting must enable passengers to identify the routes of escape and readily
identify the escape exits. If electric illumination is used, it shall be supplied by the emergency source of
power and it shall be so arranged that the failure of any single light or cut in a lighting strip will not result
in the marking being ineffective. The low-location lighting of escape routes shall fulfil the requirements
specified in 22.1.4, Part VIII – Electrical Installations and Control Systems, as well as Res. A.752(18).
In passenger ships carrying more than 36 passengers, the marking of escape routes shall also be
provided in the crew accommodation spaces.
The marking of escape routes, required in 2.3.1.7, in passenger accommodation spaces shall be visible
and easy to read for persons with reduced mobility, especially for wheelchair users.
Instead of marking the escape routes by electric-powered low-location lighting system or
photoluminescent strip indicators, alternative evacuation guidance system complying with the
67
68
Interpretations regarding the construction of continuous fire shelter are given in MSC/Circ.1120, for SOLAS regulation II2/13.3.2.4.1, see the figure in the Appendix.
Such enclosed means of escape shall be sized taking into account the total number of persons at each level of the atrium
considered.
Additional Requirements
145
requirements specified in MSC/Circ. 1167 and type approved in accordance with the guidelines set forth
in MSC/Circ. 1168, may be accepted.
6.1.6.10.6
Normally Locked Doors that Form Part of Escape Route
Cabin and stateroom doors shall not require keys to unlock them from inside the room. Neither shall
there be any doors along any designated escape route which require keys to unlock them when moving in
the direction of escape.
Escape doors from public spaces that are normally latched shall be fitted with a means of quick
release. Such means shall consist of a door-latching mechanism incorporating a device that releases the
latch upon the application of a force in the direction of escape flow. Quick release mechanism shall:
.1 consist of bars or panels, whose actuating portion extends across at least one half of the width of
the door leaf, at least 760 mm and not more than 1120 mm above the deck;
.2 cause the latch to release when a force not exceeding 67 N is applied to the releasing device; and
.3 not be equipped with any locking device, set screw or other arrangement that prevents the release
of the latch when pressure is applied to the releasing device.
6.1.6.10.7
Adjustment of Escape Routes for Persons with Reduced Mobility
In public spaces and in passenger accommodation areas, means of escape to embarkation station,
especially corridors with handrails, passageways, doorways and doors shall be made in such a way as to
accommodate the movement of persons with reduced mobility, especially wheelchair users. When
designing escape routes “Recommendation on the design and operation of passenger ships to respond to
elderly and disabled persons’ needs” contained in MSC/Circ.735 shall be taken into account.
6.1.6.10.8
Means of Escape from Accommodation Spaces on Open Decks
In passenger ships carrying more than 36 passengers, two means of escape, as widely separated as
possible, shall be provided from all accommodation areas on open decks.
6.1.6.11
Means of Escape from Machinery Spaces
In each machinery space, two means of escape shall be provided in accordance with the requirements
specified in the present sub-chapter.
6.1.6.11.1
Escape from Machinery Spaces below Bulkhead Deck
Where the machinery space is below the bulkhead deck, the two means of escape shall consist of
either:
.1 two sets of steel stairways or ladders 69, as widely separated as possible, leading to doors in the
upper part of the machinery space and from which access is provided to the appropriate lifeboat
and liferaft embarkation deck. One of these stairways or ladders shall be located within a
protected enclosure having the fire integrity as required for stairways in 6.1.4, category (2) and
6.1.5, category (4), from the lower part of the machinery space to a safe position outside the
space. This enclosure shall be provided with self-closing doors of the same fire integrity standard.
The ladder or stairway shall be fixed in such away that heat is not transferred into the enclosure
through non-insulated fixing points. The protected enclosure shall have a free opening of at least
800 mm x 800 mm including provision for a ladder and shall be provided with emergency
lighting; or
.2 one steel stairway or ladder leading to doors in the upper part of the machinery space from which
access is provided to the lifeboat and liferaft embarkation deck and additionally, in the lower part
of the space and in a position well separated from the stairway or ladder referred to, a steel door
capable of being operated from each side and which provides access to the lifeboat and liferaft
embarkation deck.
All stairways and inclined ladders, which are not located within a protective enclosure, shall be made
of steel and shall be protected against heat and flame by steel shields attached to the underside.
69
Ladders having strings of flexible steel wire ropes are not acceptable in such escape routes.
146
Fire Protection
6.1.6.11.2
Escape from Machinery Spaces above the Bulkhead Deck
Where the space is above the bulkhead deck, the two means of escape shall be as widely separated as
possible and the doors leading from such means of escape shall be in a position from which access is
provided to the appropriate lifeboat and liferaft embarkation decks. Where such means of escape require
the use of ladders, these shall be of steel.
6.1.6.11.3
Dispensation from Two Means of Escape
In ships of less than 1,000 gross tonnage, one means of escape from the machinery space may be
considered sufficient, due regard being paid to the width and disposition of the upper part of the space.
In ships of 1,000 gross tonnage and above, one means of escape from a normally unattended auxiliary
machinery space may be considered sufficient, so long as either a door or a steel ladder provides a safe
escape route to the embarkation deck, due regard being paid to the nature and location of the space and
whether persons are normally employed in that space. This requirement applies only to auxiliary
machinery spaces where persons are not normally employed.
In the steering gear space, the second means of escape shall be provided when the emergency steering
position is located in that space unless there is a direct access to the open deck.
6.1.6.11.4
Escape from Machinery Control Rooms
Two means of escape shall be provided from the machinery control room (MCR) located within a
machinery space, at least one of which will provide a continuous fire shelter to a safe position outside the
machinery space.
6.1.6.11.5
Escape from Main Workshops within Machinery Spaces 70
Two means of escape shall be provided from the main workshop within a machinery space. At least
one of these escape routes shall provide a continuous fire shelter to a safe position outside the machinery
space.
6.1.6.11.6
Escape from other Enclosed Compartments within Machinery Spaces
From enclosed spaces 71 located within machinery space, such as for monitoring of operation of
machinery, and from work spaces in which person are normally employed, there shall be at least two
means of escape, one of which shall be independent of the machinery space and give access to the
embarkation deck.
6.1.6.12
Location of Emergency Escape Breathing Devices
6.1.6.12.1 In all passenger ships, at least two emergency escape breathing devices, complying with the
requirement specified in 5.1.5, shall be situated in each main vertical zone.
6.1.6.12.2 In passenger ships carrying more than 36 passengers, two emergency escape breathing
devices, in addition to those required in 6.1.6.12.1, shall be carried in each main vertical fire zone.
6.1.6.12.3 The requirements, specified in paragraphs 6.1.6.12.1 and 6.1.6.12.2, do not apply to
stairway enclosures which constitute individual main vertical zones and to the main vertical zones in the
fore and aft end of a ship which do not contain spaces of categories (6), (7), (8) or (12), defined in 6.1.4.
6.1.7
Protection of Stairways and Lifts in Accommodation
and Service Spaces and Control Stations
6.1.7.1 Stairways shall be within enclosures formed of A Class divisions, with positive means of
closure at all openings, except that:
70
71
This requirement applies to ships subject to SOLAS Convention, constructed on or after 1 January 2016.
An enclosed space is a space having less than 30% of communication openings with machinery space where the enclosed
space is located.
Additional Requirements
.1
.2
147
a stairway connecting only two decks need not be enclosed, provided the integrity of the deck is
maintained by proper bulkheads or self-closing doors in one ‘tweendeck space. Where a stairway
is closed in one ‘tweendeck space, the stairway enclosure shall be protected in accordance with
Table 6.1.4-1 or Table 6.1.5-1;
stairways may be fitted in the open in a public space, provided they lie wholly within the public
space.
6.1.7.2 Lift trunks shall be so fitted as to prevent the passage of smoke and flame from one ‘tweendeck
to another and shall be provided with means of closing so as to permit the control of draught and smoke.
Machinery for lifts located within stairway enclosures shall be arranged in a separate room,
surrounded by steel boundaries, except that small passages for lift cables are permitted.
Lifts which open into spaces other than corridors, public spaces, special category spaces, stairways
and external areas (e.g. provision chambers, galleys, machinery spaces) shall not open into stairways
included in the means of escape.
6.1.8
Means of Closing of Openings in A Class Divisions
6.1.8.1 Except for hatches between cargo, special category, store, and baggage spaces, and between
such spaces and the weather decks, openings shall be provided with permanently attached means of
closing which shall be at least as effective for resisting fires as the divisions in which they are fitted.
6.1.8.2 Construction of fire doors and door frames in A Class divisions, with the means of securing them
when closed, shall provide resistance to fire as well as to the passage of smoke and flame equivalent to that of
the bulkheads in which the doors are situated, this being determined in accordance with the FTP Code, Annex
1, Part 3. Such doors and door frames shall be constructed of steel or other equivalent material.
Fire doors approved as A Class doors without the sill being part of the frame shall be so installed that
the gap under the door does not exceed 12 mm and a non-combustible sill shall be installed under the
door such that floor coverings do not extend beneath the closed door.
Where required divisions are replaced by divisions of a higher standard, the door need only conform
to the required division.
Watertight doors need not be insulated. Watertight doors, regarded as fire doors, in A Class divisions
need not be fire-tested in accordance with the FTP Code where intended for use below the bulkhead
deck, provided they fulfil the relevant watertightness requirements. Where such doors are used at
locations
above
the bulkhead deck, they shall fulfil the relevant watertightness and fire integrity requirements, this being
determined in accordance with the FTP Code.
Where a watertight door is located adjacent to a fire door, both doors shall be capable of independent
operation remotely – if required, and from both sides of each door.
6.1.8.3 Fire doors in main vertical zone bulkheads, galley boundaries and stairway enclosures other
than power-operated watertight doors and those which are normally locked, shall fulfil the following
requirements:
.1 the doors shall be self-closing and be capable of closing with an angle of inclination of up to 3.5º
opposing closure;
.2 approximate time of closure for hinged fire doors shall not be more than 40 s and no less than 10
s from the beginning of their movement with the ship in upright position. The approximate
uniform rate of closure for sliding doors shall be of no more than 0.2 m/s and no less than 0.1 m/s
with the ship in upright position;
.3 doors which are permanently open, except those for emergency escape trunks, shall be capable of
remote release from the ship safety centre/continuously manned central control station, either
simultaneously or in groups and shall be capable of release also individually from a position at
both sides of the door. Release switches shall have an on-off function to prevent automatic
resetting of the system;
.4 hold-back hooks not subject to central control station release from the ship safety centre/
continuously manned central control station are prohibited;
148
Fire Protection
.5
.6
.7
.8
.9
.10
.11
.12
.13
.14
.15
.16
door closed remotely from the central control station shall be capable of being re-opened from
both sides of the door by local control. After such local opening, the door shall automatically
close again;
indication must be provided at the fire door indicator panel in the ship safety centre/continuously
manned central control station whether each door is closed 72;
release mechanism shall be so designed that the door will automatically close in the event of
disruption of the control system or central power supply;
local power accumulators for power-operated doors shall be provided in the immediate vicinity
of the doors to enable the doors to be operated after disruption of the control system or central
power supply at least ten times (fully opened and closed) using the local controls;
disruption of the control system or central power supply at one door shall not impair the safe
functioning of the other doors;
remote-released sliding or power-operated doors shall be equipped with an alarm that sounds at
least 5 s but no more than 10 s after the door being released from the ship safety
centre/continuously manned central control station and before the door begins to move and
continues sounding until the door is completely closed;
a door designed to re-open upon contacting an object in its path shall re-open not more than 1 m
from the point of contact;
double-leaf doors equipped with a latch necessary for their fire integrity shall have a latch that is
automatically activated by the operation of the doors when released by the system;
doors giving direct access to special category spaces which are power-operated and automatically
closed need not be equipped with the alarms and remote-release mechanisms required in subparagraphs .3 and .10.
components of the local control system shall be accessible for maintenance and adjusting; and
power-operated doors shall be provided with a control system of an approved type which shall be
able to operate in case of fire, this being determined in accordance with the FTP Code. This
system shall fulfil the following requirements:
.1 control system shall be able to operate the door at the temperature of at least 200 °C for at
least 60 min, served by the power supply;
.2 power supply for all other doors not subject to fire shall not be impaired;
.3 at temperatures exceeding 200 °C the control system shall be automatically isolated from
the power supply and shall be capable of keeping the door closed up to at least 945 °C.
remote closure panels and door closure indicator shall be located in the ship safety centre/
continuously manned central control station – see 6.1.25.2.4.
6.1.8.4 In ships carrying not more than 36 passengers, where a space is protected by an automatic
sprinkler system, complying with the requirements specified in sub-chapter 3.3, or is fitted with a
continuous B Class ceiling, openings in decks not forming steps in the main vertical zones nor bounding
horizontal zones shall be closed reasonably tight and such decks shall meet A Class integrity
requirements in so far as is reasonable and practicable in the opinion of PRS.
6.1.8.5 The requirements for A Class integrity of the outer boundaries of a ship do not apply to glass
partitions, windows and sidescuttles, provided that there is no requirement for such boundaries to have A
Class integrity in paragraph 6.1.10.3. Similarly, the requirements for A Class integrity of the outer
boundaries of the ship do not apply to exterior doors, except for those in superstructures and deckhouses
facing lifesaving appliances, embarkation and external assembly station areas, external stairs and open
decks used for escape routes.
Stairway enclosure doors need not meet this requirement.
72 )
Lift door indication signals shall meet the following:
.1 the signal showing that A Class lift doors are in the closed position shall be activated only when the order to close the
main fire doors has been given by the continuously manned central control station; and
.2 when there are several lifts giving access to the same stairway, the lift door indicators located in the continuously
manned central control station shall be capable of indicating that all the lift doors giving access to the same landing are
properly closed. This indication shall be shown on the panel.
Additional Requirements
149
6.1.8.6 Except for watertight doors, weathertight doors (semi-watertight doors), doors leading to the open
deck and doors which need to be reasonably gastight, all A Class doors located in stairways, public spaces
and main vertical zone bulkheads in escape routes shall be equipped with a self-closing hose port of
material, construction and fire resistance which is equivalent to the door into which it is fitted.
The self-closing hose port shall be a 150 mm square clear opening with the door closed and shall be
inset into the lower edge of the door, opposite the door hinges or, in the case of sliding doors, nearest the
opening.
The hose port installed in either hinged doors or slide doors need not open/close when the doors are in
the closed position.
6.1.8.7 Doors installed in boundaries of the machinery spaces, other than watertight doors, shall be so
arranged that positive closure is assured in case of fire in the space by power-operated closing
arrangements or by the provision of self-closing doors capable of closing against inclination of 3.5o
opposing closure, and having a fail-safe hold-back arrangement, provided with a remotely operated
release device. Doors for emergency escape trunks need not be fitted with a fail-safe hold-back facility
and a remotely operated release device.
6.1.9
Means of Closing of Openings in B Class Divisions
6.1.9.1 Doors and door frames in B Class divisions and means of securing them shall provide a method
of closure which shall have resistance to fire equivalent to that of the divisions, this being determined in
accordance with the FTP Code, Annex 1, Part 3, except that ventilation openings may be permitted in the
lower portion of such doors. Where such opening is in or under a door, the total net area of any such
opening or openings shall not exceed 0.05 m2.
Alternatively, a non-combustible air balance duct routed between the cabin and the corridor, and located
below the sanitary unit is permitted where the cross-sectional area of the duct does not exceed 0.05 m2. All
ventilation openings shall be fitted with a grill made of non-combustible material. Doors shall be noncombustible.
Doors approved as B class without the sill being part of the frame shall be so installed that the gap
under the door does not exceed 25 mm.
6.1.9.2 Cabin doors in B Class divisions shall be of a self-closing type. Hold-back hooks are not
permitted.
6.1.9.3 The requirements for B Class integrity of the outer boundaries of a ship do not apply to glass
partitions, windows and sidescuttles. Similarly, the requirements for B Class integrity do not apply to
exterior doors in superstructures and deckhouses.
For ships carrying not more than 36 passengers, the use of combustible materials in doors separating
cabins from the individual interior sanitary spaces such as showers is permitted.
6.1.9.4 In ships carrying not more than 36 passengers, where an automatic sprinkler system complying
with the requirements specified in sub-chapter 3.3 is fitted:
.1 openings in decks not forming steps in main vertical zones nor bounding horizontal zones shall
be closed reasonably tight and such decks shall fulfil B Class integrity requirements in so far as
is reasonable and practicable in the opinion of PRS;
.2 openings in corridor bulkheads of B Class materials shall be protected in accordance with the
requirements specified in sub-chapter 6.1.3.
6.1.10
Windows and Sidescuttles
6.1.10.1 Windows and sidescuttles in bulkheads within accommodation and service spaces and control
stations other than those to which the requirements specified in paragraphs 6.1.8.5 and 6.1.9.3 apply,
shall be so constructed as to preserve the integrity requirements of the type of bulkheads in which they
are fitted, this being determined in accordance with the FTP Code, Annex 1, Part 3.
6.1.10.2 Notwithstanding the requirements specified in Tables 6.1.4-1 and 6.1.4-2 as well as 6.1.5-1 and
6.1.5-2, windows and sidescuttles in bulkheads separating accommodation and service spaces and control
stations from weather shall be constructed with frames of steel or other suitable material. The glass shall be
retained by a metal glazing bead or angle.
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Fire Protection
6.1.10.3 Windows facing life-saving appliances, embarkation and assembly stations, external stairs
and open decks used for escape routes, as well as windows situated below liferaft and escape slide
embarkation areas shall have the fire integrity in accordance with the requirements specified in Table
6.1.4-1. Where automatic sprinkler system is provided for the protection of windows, A-0 windows may
be accepted as equivalent. To be considered under this paragraph, the heads of the automatic sprinkler
system shall be either:
.1 dedicated heads located above the windows, and installed in addition to the conventional ceiling
sprinklers; or
.2 conventional ceiling sprinkler heads so arranged that the window is protected by an average
application rate of at least 5 l/min per 1 m2 and the additional window area is included in the
calculation of the area covered by the automatic sprinkler system; or
.3 heads of the equivalent high pressure sprinkler system tested and approved in accordance with
the guidelines specified in Res. A.800(19).
6.1.10.4 Windows located in the ship’s side below the lifeboat embarkation area shall have fire
integrity at least equal to A-0 Class.
6.1.11
Fire-extinguishing Arrangements in Accommodation and Service Spaces and Control
Stations
6.1.11.1 In passenger ships carrying not more than 36 passengers, there shall be installed throughout
accommodation and service spaces, as well as control stations except for the spaces which afford no
substantial fire risk (e.g. voids, public toilets, etc.) either:
.1 fixed fire detection and fire alarm system, of approved type, complying with the requirements
specified in 4.1 and 6.1.14 so installed and arranged as to detect the presence of fire in all abovementioned spaces and provide smoke detection in corridors, stairways and escape routes within
the accommodation spaces; or
.2 automatic sprinkler system, of approved type, complying with the requirements specified in 3.3
and 6.1.13, and additionally fire detection and fire alarm, complying with the requirements
specified in 4.1 and 6.1.14, which will be so installed and arranged as to provide smoke detection
in corridors, stairways and escape routes within the accommodation spaces.
If fixed fire detection and fire alarm system is installed only in corridors, stairways and escape routes
within accommodation area, an automatic sprinkler system shall be fitted in all accommodation spaces,
service spaces and control stations.
6.1.11.2 In passenger ships carrying more than 36 passengers, there shall be installed throughout
accommodation and service spaces, as well as control stations including corridors and stairways:
.1 automatic sprinkler system, of approved type, complying with the requirements specified in 3.3
and 6.1.13. Alternatively, control stations – where water may cause damage to essential equipment
– may be fitted with a fixed fire-extinguishing system of approved type; and
.2 fixed fire detection and fire alarm system of approved type, complying with the requirements
specified in 4.1 and 6.1.14 so installed and arranged as to provide smoke detection in those
spaces; smoke detectors, however, need not be fitted in private bathrooms and galleys.
Each enclosed space of the floor area greater than 2 m2 shall be provided with a sprinkler and smoke
detector. In spaces having the floor area smaller than 2 m2 only smoke detector may be fitted.
Spaces of low fire risk (such as e.g. voids, toilets, carbon dioxide rooms and similar spaces) need not
be fitted with an automatic sprinkler system and smoke detector.
In refrigerated chambers and in other spaces where steam or fumes may occur, such as saunas and
laundries, heat detectors may be installed instead of smoke detectors.
6.1.11.3 In passenger ships, furniture and furnishings on passenger cabin balconies shall be protected
by a fixed water-spraying system (see 3.4.5) and fixed fire detection and fire alarm systems (see 6.1.14.4)
unless the furniture and furnishings fulfil the requirements for the spaces of restricted fire risk in
accordance with the definitions given in 1.2.57 – see 6.1.1.2.8.
Additional Requirements
151
6.1.11.4 The entire main vertical zone containing the atrium shall be protected throughout with a
smoke detection system complying with the requirements specified in 4.1 and 6.1.14, including smoke
detectors.
6.1.11.5 Atriums shall be provided with the smoke control and ventilation system automatically
activated by the fire detection and fire alarm system in accordance with the requirements specified in
sub-chapter 22.3.5, Part VI – Machinery Installations and Refrigerating Plants. The control panel of the
smoke control and ventilation system shall be located in the ship safety centre – see 6.1.25.2.4.
6.1.11.6 Passenger internal assembly stations shall be fitted with a supply ventilation system in
accordance with the requirements specified in sub-chapter 22.3.6, Part VI – Machinery Installations and
Refrigerating Plants.
6.1.11.7 Accommodation spaces shall be equipped with fire-fighting equipment and emergency escape
breathing devices arranged in accordance with the requirements specified in Table 5.1.6-1.
6.1.12
Fire-Extinguishing Arrangements in Cargo Spaces
6.1.12.1 Cargo spaces of passenger ships of 1000 gross tonnage and above shall be protected by a
fixed carbon dioxide fire-extinguishing system complying with the requirements specified in 3.6 or an
equivalent gas fire-extinguishing system, referred to in 3.7, or a fixed high-expansion foam fireextinguishing system, complying with the requirements of 3.5.3, which gives equivalent protection for
the carried cargoes.
6.1.12.2 In passenger ships of less than 1000 gross tonnage and in passenger ships of restricted service
(see 6.17.1), a fixed gas fire-extinguishing system in cargo spaces may be waived, provided that the ship
is fitted with steel hatch covers and effective means of closing all ventilators and other openings leading
to the cargo spaces.
6.1.12.3 A fixed fire detection and fire alarm system complying with the requirements of 4.1 or a
sample extraction smoke detection system complying with the requirements of 4.2 shall be provided in
any cargo space which is not accessible during the ship's normal operation.
In passenger ships of restricted service, fire detection system and fire alarm system need not be
installed – see 6.17.2.
6.1.12.4 In all passenger ships, regardless of the gross tonnage, carrying dangerous cargo on deck or in
cargo spaces, each cargo space shall be provided with the fixed carbon-dioxide fire-extinguishing
system, complying with the requirements specified in 3.6 or a gas fire-extinguishing system which gives
equivalent protection for the carried cargoes.
6.1.13
Automatic Sprinkler System
6.1.13.1 In addition to the requirements specified in this sub-chapter, an automatic sprinkler system
shall fulfil the requirements specified in 3.3.
6.1.13.2 There shall be at least two sources of power supply for the sea water pump and alarm and
detection system. Where the sources of power for the pump are electrical, these shall be a main generator
and an emergency source of power.
6.1.13.3 Any section of sprinklers shall not be situated in more than one main vertical zone and shall
not serve more than two decks. Exemption from this requirement is subject to PRS’ consent in each
particular case.
6.1.13.4 The control panel of the automatic sprinkler system shall be located in the ship safety
centre/central control station.
6.1.13.5 Electric power supply for the automatic sprinkler system shall fulfil the requirements
specified in sub-chapter 22.1.1, Part VIII – Electrical Installations and Control Systems.
152
6.1.14
Fire Protection
Fixed Fire Detection and Alarm System
6.1.14.1 In addition to the requirements set forth in 4.1, fire detection and alarm system shall fulfil the
requirements of the present sub-chapter.
6.1.14.2 Fire detection and alarm system shall be capable of remote identification of each detector and
manually operated call point individually.
6.1.14.3 Fire detectors fitted in cabins, when activated, shall be capable of emitting, or cause to be
emitted, an audible alarm within the space in which they are located.
6.1.14.4 On cabin balconies, the fixed fire detection and fire alarm system shall be designed, made and
type tested in accordance with guidelines given in MSC.1/Circ.1242. The system shall, as a minimum,
have section identification capability.
6.1.14.5 The emergency source of power specified in 4.1.3.1 shall be sufficient to maintain the operation
of the fire detection and fire alarm system for the periods required in sub-chapter 22.1.2, Part VIII –
Electrical Installations and Control Systems, and at the end of that period shall be capable of operating all
the connected visual and audible fire alarm signals for a period of at least 30 min.
6.1.14.6 Cables routed through other main vertical zones that they serve, and cables to control panels in
an unattended fire control stations shall be fire-resisting in accordance with IEC 60331, unless duplicated
and well separated.
6.1.14.7 Any section of detectors and manually operated call points shall not be situated in more than
one main vertical zone, except on cabin balconies.
6.1.14.8 The control panel of the fixed fire detection and fire alarm system shall be designed on the
fail-safe principle (e.g. an open detector circuit shall cause an alarm condition).
6.1.14.9 The control panel of the fixed fire detection and fire alarm system shall be located in the ship
safety centre/central control station.
6.1.14.10 Indicating unit that is capable of individually identifying each detector that has been activated
or manually operated call point that has operated shall be located on the navigation bridge. On cabin
balconies, indicating units shall, as a minimum, denote the section in which a detector has activated or
manually operated call point has been operated.
6.1.15
Signalling System in Ships Carrying more than 36 Passengers
6.1.15.1 Signalling system for the fire detection and automatic sprinkler systems shall be located in the
ship safety centre/ continuously manned central control station. Additionally, the following shall be
provided in those locations:
.1 control panels for remote closing the fire doors;
.2 controls for switching and shutting down the ventilation fans;
.3 indicators of open or closed position of the fire doors;
.4 indicators of fan operation;
.5 indicators of operation or off status of fire detectors and alarms.
6.1.15.2 The power supply and the signalling system shall fulfil the requirements specified in subchapter 22.1.1, Part VIII – Electrical Installations and Control Systems.
6.1.16
Water Fire Main System
6.1.16.1 The water fire main system shall fulfil the applicable requirements specified in 3.2, as well
the requirements of the present sub-chapter.
153
Additional Requirements
6.1.16.2 The number of the main fire pumps and the pressure of water delivered simultaneously by
two pumps through the required nozzles, at the discharge rate specified in 6.1.16.4, at any hydrant, shall
be at least equal to the values specified in Table 6.1.16.2.
Table 6.1.16.2
Ship gross tonnage
Number of pumps
Minimum pressure
at hydrants [MPa]
< 4000
2
0.3
≥ 4000
3
0.4
6.1.16.3 The total capacity of the main fire pumps, at the pressure not lower than that specified in
Table 6.1.16.2, shall not be less than two-thirds of the required combined capacity of bilge pumps whose
capacity shall be determined in accordance with the requirements specified in paragraphs 6.1.3 and
22.3.2.1, Part VI – Machinery Installations and Refrigerating Plants.
6.1.16.4 Where more pumps than the minimum of the required pumps are installed, such additional
pumps shall have a capacity of at least 25 m3/h and shall be capable of delivering at least two required
jets of water.
6.1.16.5 In ships of 1000 gross tonnage and upwards, the arrangement of fire pumps, their sources of
power and sea connections shall be such that in the event of fire in any one compartment all the fire
pumps will not be put out of action.
It means that at least one of the pumps shall be supplied from the main and emergency source of
power and shall be located in a separate space. Cabling for the emergency source of power shall not be
led through machinery spaces of category A, galleys or other spaces of high fire risk.
Where fire pumps are installed in adjacent spaces, the division between the spaces shall be of A-60
Class.
6.1.16.6 In passenger ships of less than 1000 gross tonnage, if a fire in any one compartment could put
the required two pumps out of action (e.g. when the pumps are located in one compartment), an
emergency fire pump complying with the requirements specified in sub-chapter 3.2.4, but with the
capacity not less than 25 m3/h, shall be provided.
6.1.16.7 In passenger ships of 1000 gross tonnage and upwards, the water fire main system shall be kept
permanently pressurised and shall be such as to ensure an effective jet of water immediately available from
any hydrant in an interior location and to ensure the continuation of the output of water jet by automatic
starting of one required fire pump.
6.1.16.8 In passenger ships of less than 1000 gross tonnage, immediate availability of water supply shall
be ensured either by automatic start of at least one fire pump or by remote starting from the navigation
bridge of at least one fire pump.
6.1.16.9 Fire pumps and the emergency fire pumps start buttons, as well as the indicators of the pumps
operation shall be located in the ship safety centre/continuously manned central control station – see
6.1.25.2.4.17.
6.1.16.10 In accommodation, service and machinery spaces, the number and position of hydrants shall
be such that the requirements specified in 3.2.6.3 may be fulfilled when all watertight doors and all doors
in the main vertical zone bulkheads are closed.
6.1.16.11 In passenger ships where access is provided to a machinery space of category A at a low
level from an adjacent shaft tunnel, two fire hydrants shall be provided external to but near the entrance
to that machinery space of category A. This requirement also applies to other spaces adjacent to the
machinery space of category A, although it need not be fulfilled where the tunnel or adjacent spaces are
not part of the escape route.
154
Fire Protection
The fire hydrants shall be supplied by the pipeline which does not pass through machinery space of
category A.
6.1.16.12 In interior locations in passenger ships carrying more than 36 passengers, fire hoses shall be
connected to the hydrants at all times.
6.1.16.13 In all passenger ships, the number of fire hoses shall be such that there will be at least one
fire hose for each of the fire hydrants.
6.1.17
Fire Protection of Exhaust Ventilation Ducts from Galley Range
6.1.17.1 In ships carrying not more than 36 passengers, the exhaust ducts from a galley range shall
fulfil the requirements specified in 2.7.1.
6.1.17.2 In ships carrying more than 36 passengers, exhaust ducts from galley ranges shall be
constructed of steel having a thickness of 3 to 5 mm, depending on cross-sectional area, shall fulfil
applicable requirements for ventilation ducts, specified in Chapter 11 of Part VI – Machinery
Installations and Refrigerating Plants, and shall be insulated 73 to A-60 class standard 74 throughout
accommodation spaces, service spaces and control stations they pass through. They shall also be fitted
with:
.1 a grease trap readily removable for cleaning or an alternative approved grease removal system;
.2 an automatically and remotely operated fire damper 75 located in the lower end of the duct at the
junction between the duct and the galley range hood and, in addition, a remotely operated fire
damper located in the upper end of the duct close to the outlet of the duct. Where branches are
provided below the upper fire damper, each branch shall be closed with remotely controlled fire
damper;
.3 a fixed fire-extinguishing system for extinguishing a fire within the duct 76;
.4 suitably located hatches for internal inspection and cleaning, including one provided close to the
exhaust fan and one fitted in the lower end of exhaust duct where grease accumulates.
Remotely controlled arrangements for shutting off the exhaust and supply fans serving the galley, for
operating the fire dampers (including the fire dampers in each branch), as well as for operating the fireextinguishing system shall be located outside the galley, in a position close to the entrance to the galley.
6.1.17.3 In ships carrying more than 36 passengers, the exhaust duct from a galley range installed on
open decks shall fuflil the applicable requirements specified in 6.1.17.2 when passing through
accommodation spaces or spaces containing combustible materials.
6.1.18
Fire-Extinguishing Arrangements in Machinery Spaces
6.1.18.1 In all passenger ships, machinery spaces of category A shall be fitted with fixed total flooding
fire-extinguishing system, required in 2.5.1.1.
6.1.18.2 In passenger ships of 500 gross tonnage and upwards, machinery spaces of category A above
500 m3 in volume, in addition to the fixed total flooding fire-extinguishing system shall be provided with
a fixed local application water-based fire-extinguishing system or an equivalent system, of an approved
type, complying with the requirements specified in 3.4.6.
System activation alarm signals shall be located in the ship safety centre/ continuously manned
central control station - see 6.1.25.2.4.11.
73
If the duct is adjacent to the wall of the space it passes through, the wall shall be insulated over the entire cross-section of the
duct plus at least 0,45 m past both edges of it. Examples of ventilation duct insulation have been given in MSC.1/Circ.1276,
interpretations of regulations II-2/9.7.2.1, II-2/9.7.2.2 and II-2/9.7.5.2.1 of SOLAS Convention.
74
Additional requirements for insulating ventilation ducts to „A-60” class standard are obligatory for ships covered by SOLAS
Convention and constructed on or after 1 January 2016.
75
Fire dampers need not be fire tested, however, they shall be made of steel and be capable of stopping the draught in the duct.
76
Refer to Publication ISO 15371:2009, Ships and marine technology – Fire-extinguishing systems for protection of galley
cooking equipment
Additional Requirements
155
6.1.18.3 In ships carrying more than 36 passengers, each machinery space of category A shall be
provided with two water fog applicators.
6.1.19
Carbon Dioxide Fire-Extinguishing System
The piping of each fixed carbon dioxide system used on ship shall be such that 85% of the required
gas quantity may be discharged into each protected space within 2 min.
6.1.20
Fire-Fighter’s Outfit
6.1.20.1 In passenger ships, if the aggregate of the lengths of all passenger spaces and service spaces
on the deck which carries such spaces is more than 80 metres, or, if there is more than one such deck, on
the deck which has the largest aggregate of such lengths, two fire-fighter’s outfits and two sets of
personal equipment for every 80 metres, or part thereof, of such aggregate of lengths shall be additionally
provided.
In passenger ships carrying more than 36 passengers, two additional fire-fighter’s outfits shall be
provided for each main vertical zone. However, for stairway enclosures which constitute individual main
vertical zones and for the main vertical zones in the fore or aft end of a ship which do not contain spaces
of categories (6), (7), (8) or (12) defined in 6.1.4, no additional fire-fighter’s outfits are required.
6.1.20.2 In ships carrying more than 36 passengers, for each pair of breathing apparatus there shall be
provided one water fog applicator which shall be stored adjacent to such apparatus.
6.1.20.3 In all passenger ships, at least two fire-fighter’s outfits and, in addition, one set of personal
equipment shall be available at any one position. At least two fire-fighter’s outfits shall be stored in each
main vertical zone.
6.1.20.4 In ships carrying more than 36 passengers, two spare charges for each breathing apparatus
shall be provided, irrespective of fitting the ship with the means for fully recharging the air cylinders.
Ships carrying not more than 36 passengers provided with the means for fully recharging the air
cylinders may be provided with only one spare charge for each breathing apparatus.
6.1.20.5 Passenger ships carrying more than 36 passengers shall be fitted with a suitably located
means for fully recharging breathing air cylinders, free from contamination. The means for recharging
shall be either:
.1 breathing air compressors supplied from the main and emergency switchboard, or independently
driven, with a minimum capacity of 60 l/min per required breathing apparatus, not to exceed 420
l/min; or
.2 self-contained high-pressure storage systems of suitable pressure to recharge the breathing
apparatus used on board, with a capacity of at least 1200 l per required breathing apparatus, not
to exceed 50000 l of free air.
6.1.21
Fire Control Plan
6.1.21.1
Fire Control Plan, referred to in 1.4.2, is required on each passenger ship, irrespective of its
gross tonnage.
6.1.21.2 For passenger ships carrying more than 36 passengers, Fire Control Plan shall additionally
contain the following information: date on which the keel was laid, date and scope of the ship
modifications, as well as the applied additionally safety measures in accordance with the guidelines given
in Res.A.756(18).
6.1.22
Fire Protection of Exhaust Duct from Laundry and Drying Room
In ships carrying more than 36 passengers, the exhaust duct from laundries and drying rooms,
classified in 6.1.4.2 as category (13) spaces, shall be fitted with:
.1 filter(s) readily removable for cleaning purposes;
.2 automatically and remotely operated fire damper located in the lower end of the duct;
156
Fire Protection
.3 suitably located hatches for inspection and cleaning.
The laundry/drying room shall be provided with remote control arrangements for shutting off the
exhaust duct fans and supply fans from within the space and for operating the fire damper, referred to in
.2.
6.1.23
6.1.23.1
Requirements for Large Passenger Ships in the Context of Fire Casualties – after a Fire
Casualty that does not Exceed the Casualty Threshold
Application
6.1.23.1.1 The requirements of sub-chapter 6.1.23 apply to passenger ships constructed on or after
1 July 2010 having the length 77 of 120 m or more or having three or more main vertical zones.
6.1.23.1.2 Sub-chapter 6.1.23 specifies the design criteria for a ship’s safe return to a port of refuge
under its own propulsion after a fire casualty that does not exceed the casualty threshold specified in
6.1.23.2 and provides also functional requirements and performance standards for safe areas.
6.1.23.1.3 Interpretations regarding the requirements specified in the present sub-chapter are given in
Appendix to MSC.1/Circ.1369.
6.1.23.2
Fire Casualty Threshold
The casualty threshold, in the context of a fire, includes:
.1 loss of a space of origin up to the nearest A Class boundaries, which are a part of the space of
origin, if the space of origin is protected by a fixed fire-extinguishing system; or
.2 loss of the space of origin and adjacent spaces up to the nearest A Class boundaries, which are
not part of the space of origin.
6.1.23.3
Safe Return to a Port of Refuge
6.1.23.3.1 When fire damage does not exceed the casualty threshold specified in 6.1.23.2, the ship
shall be capable of returning to a port of refuge while providing safe area(s) as defined in 1.2.69. To be
deemed capable of returning to a port of refuge, the following systems/arrangements shall remain
operational in the remaining part of the ship not affected by fire:
.1 propulsion;
.2 steering systems and steering-control systems;
.3 navigational systems;
.4 systems for filling, transfer and service of fuel oil;
.5 systems of internal communication between the navigation bridge, machinery spaces, safety centre,
fire-fighting and damage control teams, as well as communication systems required for passenger
and crew notification and mustering;
.6 means of external communication;
.7 water fire main system;
.8 fixed fire-extinguishing systems;
.9 fire detection and fire alarm system;
.10 bilge and ballast systems;
.11 power-operated watertight and semi-watertight doors;
.12 systems intended to support safe areas, specified in 6.1.23.4.1.2;
.13 flooding detection systems; and
.14 other systems determined to be vital to damage control efforts.
6.1.23.3.2 Interpretations relating to pipings, ventilation ducts, electric cables, systems for filling,
transfer and service of fuel oil, as well as means of external communication are given in Annex to
MSC.1/Circ.1437.
77
See the definitions of the ship’s length (L) given in Part II – Hull.
157
Additional Requirements
6.1.23.4
Safe Area(s)
6.1.23.4.1
.1
.2
.3
.4
Functional Requirements
the safe area(s) shall generally be internal space(s). However, the use of an external space as a
safe area may be allowed in ships operating in restricted area of navigation and in relevant
expected environmental conditions;
the safe area(s) shall provide all ship occupants (passengers and crew) with the basic services to
ensure that their health is maintained. These basic services include:
.1 sanitation;
.2 water;
.3 food;
.4 alternate space for medical care;
.5 shelter from the weather;
.6 means of preventing heat stress and hypothermia;
.7 light; and
.8 ventilation;
ventilation system shall reduce the risk that smoke and hot gases could affect the use of the safe
area(s); and
means of access to life-saving appliances shall be provided from each area identified or used as a
safe area, taking into account that a main vertical zone may not be available for internal transit.
6.1.23.4.2
Alternate Space for Medical Care
Alternate space for medical care shall fulfil the requirements specified in MSC/Circ. 1129.
6.1.24
6.1.24.1
Requirements for Large Passenger Ships in the Context
of Fire Casualties – if the Casualty Threshold is Exceeded
Application
6.1.24.1.1 The requirements of sub-chapter 6.1.24 apply to passenger ships having the length L
m or more or having three or more main vertical zones.
78
of 120
6.1.24.1.2 Sub-chapter 6.1.24 provides the basic criteria for systems required to remain operational for
supporting the orderly evacuation and abandonment of a ship if the casualty threshold, as defined in
6.1.23.2, is exceeded.
6.1.24.1.3 Interpretations regarding the requirements set forth in the present sub-chapter are given in
the Appendix to MSC.1/Circ. 1369.
6.1.24.2
Requirements for Systems that Shall Remain Operational
if the Casualty Threshold is Exceeded
6.1.24.2.1 In the case when one main vertical zone is unserviceable due to fire, the following systems
shall be so arranged and segregated as to remain operational:
.1 water fire main system;
.2 internal communication systems (in support of fire-fighting teams, for passenger and crew
notification and mustering);
.3 means of external communication;
.4 bilge systems for removal of fire-fighting water;
.5 lighting along escape routes, at assembly stations and at embarkation stations of life-saving
appliances; and
.6 the systems of marking escape routes or alternative evacuation guidance systems.
78
See the definitions of the ship’s length (L) given in Part II – Hull.
158
Fire Protection
6.1.24.2.2 The above systems shall be capable of operation for at least 3h (from the moment the
casualty threshold has been exceeded) on the assumption of no damage outside the unserviceable main
vertical zone. These systems are not required to remain operational within the unserviceable main
vertical zone.
6.1.24.2.3 Cables and piping for the systems, referred to in 6.1.24.2.1, passing through the
unserviceable main vertical zone shall be run within a trunk constructed to A-60 Class standard. An
equivalent degree of protection for the above-mentioned cables and piping may be allowed subject to
agreement with PRS.
6.1.25
6.1.25.1
Safety Centre
Application
6.1.25.1.1 Every passenger ship shall have on board a safety centre to assist with the management of
emergency situations, in accordance with the requirements specified in this sub-chapter.
6.1.25.1.2 Clarifications regarding interrelation between the central control station, navigation bridge
and safety centre are given in MSC.1/Circ.1368.
6.1.25.2
Requirements for Safety Centre
6.1.25.2.1 The safety centre shall either be a part of the navigation bridge or be located in a separate
space adjacent to and having direct access to the navigation bridge so that the management of
emergencies can be performed without distracting watch officers from their navigational duties.
6.1.25.2.2 The layout and ergonomic design of the safety centre shall take into account the guidelines
developed by IMO (MSC.1/Circ. 1368).
6.1.25.2.3 Means of communication between the safety centre, the central control station, the navigation
bridge, the engine control room, the storage rooms (stations) for fire fire-extinguishing systems and fire
equipment lockers shall be provided.
6.1.25.2.4 The full functionality (operation, control, monitoring or any combination thereof, as
required) of the safety systems shall be available from the safety centre:
.1 all power ventilation systems;
.2 fire doors;
.3 general alarm system;
.4 public address system;
.5 electrically powered escape routes low-location lighting systems or evacuation guidance systems;
.6 watertight and semi-watertight doors;
.7 indicators (open-closed) for shell doors, loading doors and other closing appliances;
.8 water leakage of inner/outer bow doors, stern doors and any other shell doors;
.9 television surveillance system;
.10 fire detection and fire alarm system;
.11 fixed local application fire-extinguishing systems;
.12 automatic sprinkler systems and equivalent systems;
.13 water-based fire-extinguishing systems for machinery spaces;
.14 alarm to summon the crew;
.15 atrium smoke distraction systems;
.16 flooding detection systems;
.17 fire pumps and emergency fire pumps.
6.1.26
Passenger Ship Tenders
Fire protection of ship tenders intended for transferring more than 12 passengers from a stationary
passenger ship to a shore and back shall be in accordance with guidelines given in MSC.1/Circ.1417,
Chapter 4.
Additional Requirements
6.2
159
Ferries and Ro-Ro Ships – Marks: FERRY, RO-RO SHIP
6.2.1
Means of Escape from Ro-Ro Spaces
6.2.1.1 At least two means of escape shall be provided in ro-ro spaces where the crew are normally
employed. The escape routes shall provide a safe escape to the lifeboat and liferaft embarkation decks and
shall be located at the fore and aft ends of the space.
6.2.1.2 The means of escape shall be enclosed by a continuous fire shelter with fire integrity for stairway
enclosures, extending from the ro-ro space up to the embarkation deck. One of the means of escape shall be a
stairway, the second means of escape may be an escape trunk or a stairway.
6.2.1.3 Escape and access routes shall be so arranged as to ensure safe escape routes during loading
and unloading such as solid-line indication of an escape lane, with minimum clearance of 600 mm in
width.
6.2.2
6.2.2.1
Fire Protection Arrangements in Ro-Ro Spaces and Vehicle Spaces
Fire Detection and Fire Alarm System
6.2.2.1.1 Ro-ro spaces and vehicle spaces shall be fitted with a fixed fire detection and fire alarm
system in accordance with the requirements specified in 4.1. The system shall be capable of rapidly
detecting the onset of fire. The type of detectors and their spacing shall be in accordance with PRS
requirements taking into account the effects of ventilation and other relevant factors. After being
installed, the system shall be tested under normal ventilation conditions and shall give an overall
response in accordance with PRS requirements.
6.2.2.1.2 Smoke detector sections in ro-ro spaces and vehicle spaces may be provided with a timer for
disconnecting the detector sections during loading and unloading to avoid false alarms. The time of
disconnection shall be adapted to the time of loading/unloading. The control panel shall indicate whether
the detector sections are disconnected or not.
If, however, the manually operated call points have been installed, they shall not be capable of being
disconnected during loading and unloading of vehicles.
6.2.2.1.3 Except open ro-ro spaces, open vehicle spaces, a sample extraction smoke detection system
complying with the requirements specified in 4.2 may be applied instead of fixed detection and alarm
system.
6.2.2.1.4 The fire detection system shall consist of flame detectors, smoke detectors or heat detectors.
The flame detectors shall be installed under fixed continuous decks according to the limitation and
application defined by the maker and the approval certificate. The smoke detectors and heat detectors
shall fulfil the requirements specified in sub-chapter 4.1. Smoke detectors with a spacing not exceeding
11 m and heat detectors with a spacing not exceeding 9 m shall be installed under hoistable ramps.
6.2.2.1.5 The fire detection system shall ensure rapid operation while consideration should be given to
preventing accidental release. The area of coverage of the fire detection sections shall correspond to the
area of coverage of the fire-extinguishing system sections. The following arrangements are acceptable:
– set-up of flame detectors and smoke detectors or heat detectors; or
– set-up of smoke detectors and heat detectors.
Other arrangements can be accepted subject to a separate consideration during approval of
documentation.
6.2.2.2
Fixed Fire-Extinguishing Systems
6.2.2.2.1 Vehicle spaces and ro-ro spaces which are capable of being sealed from a location outside of
the cargo spaces (which are not special category spaces), shall be fitted with one of the fixed fireextinguishing systems:
.1 gas fire-extinguishing system in accordance with the requirements specified in 3.6;
160
Fire Protection
.2
.3
.4
a fixed high-expansion foam fire-extinguishing system in accordance with the requirements
specified in 3.5.3;
a fixed pressure water-spraying system in accordance with the requirements specified in 3.4.2;
an equivalent high-pressure water-spraying system in accordance with the requirements specified
in 3.4.3.
6.2.2.2.2 Ro-ro spaces and vehicle spaces not capable of being sealed shall be fitted with a fixed
pressure water-spraying system in accordance with the requirements, specified in sub-chapter 3.4.2 or
equivalent high-pressure water-based fire-extinguishing system, specified in 3.4.3, which shall protect all
parts of any deck and vehicle platform in such spaces.
6.2.2.2.3 When fixed pressure water-spraying systems are provided, in view of the serious loss of
stability which might arise due to large quantities of water accumulating on the deck or decks during the
operation of the fixed pressure water-spraying system, proper arrangements shall be made to drain the
space in accordance with the requirements specified in sub-chapter 6.12, Part VI – Machinery
Installations and Refrigerating Systems.
6.2.2.2.4 Pressure water-spraying systems can be applied on open ro-ro spaces when the actual wind
condition is taken into consideration, e.g. through the use of high velocity nozzles.
6.2.2.3
Arrangement of Hydrants
The arrangement of hydrants shall be such that at least two jets of water not emanating from the same
hydrant, one of which shall be from a single length of hose, may reach any part of any cargo space when
empty, any ro-ro space or any vehicle space, in which latter case the two jets of water shall reach any part
of the space, each from a single length of hose. Furthermore, such hydrants shall be positioned near
accesses to the protected space.
6.2.2.4
Ventilation
Ventilation in closed ro-ro spaces and closed vehicle spaces shall fulfil the requirements specified in
sub-chapter 11.4, Part VI – Machinery Installations and Refrigerating Plants.
In cargo ships, ventilation fans shall always be in operation whenever vehicles are on board. Where
there is a possibility of shutting off fans during voyage (only in cargo ships), the vehicle space shall be
proved combustible gas-free well in advance prior to vehicle discharge. One or more portable
combustible gas detecting instruments shall be carried for this purpose.
6.2.2.5
Sources of Ignition
Electrical equipment and wiring in closed ro-ro spaces and vehicle spaces which may be the source of
ignition shall be explosion-proof and shall fulfil the relevant requirements specified in sub-chapter 22.3,
Part VIII – Electrical Installations and Control Systems.
Other equipment which may constitute a source of ignition of flammable vapours is not permitted in
closed ro-ro cargo spaces and vehicle spaces.
NO SMOKING signs shall be placed on all entrance doors to ro-ro spaces and vehicle spaces.
6.2.2.6
Scuppers and Discharges
Scuppers from closed ro-ro spaces and vehicle spaces shall not be led to machinery or other spaces
where sources of ignition may be present.
Scuppers and discharges shall fulfil the requirements specified in sub-chapter 6.12, Part VI –
Machinery Installations and Refrigerating Plants.
6.2.2.7
Permanent Openings
Permanent openings in the side plating, the ends or deckhead of the space shall be so situated that a
fire in the cargo space does not endanger stowage areas and embarkation stations for survival craft and
accommodation spaces, service spaces and control stations in superstructures and deckhouses above the
cargo spaces.
Additional Requirements
6.2.2.8
161
Portable Fire-Fighting Equipment
6.2.2.8.1 Portable fire-extinguishers shall be provided at each deck level in each hold or compartment
where vehicles are carried, spaced not more than 20 m apart on both sides of the space. At least one
portable fire-extinguisher shall be located at each access to such a cargo space.
Portable fire-extinguishers are not required for weather decks used as cargo ro-ro spaces.
6.2.2.8.2 Each ro-ro and vehicle space intended for the carriage of motor vehicles with fuel in their
tanks for their own propulsion shall be additionally provided with the following fire-extinguishing
appliances:
.1 at least three water-fog applicators; and
.2 one portable foam applicator unit in accordance with the requirements specified in 5.1.3,
provided that at least two such units are available in the ship for use in such spaces.
6.2.2.8.3 Cargo holds, loaded with vehicles with fuel in their tanks and stowed in open or closed
containers need not be provided with the portable fire-extinguishers, water fog applicators and foam
applicator unit.
6.2.3
Fire Protection of Open Decks
Open vehicle spaces need not be provided with fire detection and alarm system, fixed water-spraying
fire-extinguishing system, portable foam applicator units and portable fire-extinguishers.
6.3
Tankers (Crude Oil Tankers and Product Carriers) Carrying Cargoes Having a Flash-Point not
exceeding 60 ºC and Combination Carriers – Marks: CRUDE OIL TANKER, PRODUCT
CARRIER A, CRUDE OIL TANKER/ORE CARRIER, CRUDE OIL TANKER/ORE
CARRIER/BULK CARRIER
6.3.1
Application
The requirements specified in sub-chapter 6.3 apply to tankers carrying crude oil or petroleum
products having a flash-point not exceeding 60 °C (closed cup test), as determined by an approved flashpoint apparatus, and a Reid vapour pressure which is below atmospheric pressure or other liquid products
of similar fire-hazard, as well as to combination carriers intended for the alternate carriage of the abovementioned liquid cargoes.
6.3.2
Location and Separation of Spaces
Ship spaces shall be so arranged or separated, e.g. by cofferdams, as to preclude the cargo or its
vapour from penetration to the spaces/zones where there is a risk of explosion.
Cofferdam means an isolating space (where there is a risk of explosion) between two adjacent steel
bulkheads or decks which ensures safe access and inspection 79. In the case when a corner-to-corner
situation occurs, this principle may be applied by welding a diagonal plate across the corner 80).
Void space or ballast water tank protecting fuel oil tank need not be considered as "cargo area",
defined in 1.2.70, even though they have a cruciform contact with the cargo oil tank or slop tank.
Void spaces protecting fuel oil tanks are not considered as a cofferdam even though they have a
cruciform contact with the slop tank.
6.3.2.1
Machinery Spaces
6.3.2.1.1 Cargo pump-rooms, cargo tanks, slop tanks and cofferdams shall be positioned forward of
machinery spaces. Cargo tanks and slop tanks shall be isolated from machinery spaces by cofferdams,
cargo pump-rooms, oil fuel bunker tanks or ballast tanks.
79
80
No cargo, wastes or other goods shall be located in cofferdams.
The example of such isolating plates - see Appendix to MSC/Circ.1120, interpretations of SOLAS regulation II-2/4.5.1.
162
Fire Protection
6.3.2.1.2 Machinery spaces, other than those of category A, may be permitted forward of the cargo
tanks and slop tanks, provided they are:
.1 isolated from the cargo tanks and slop tanks by cofferdams, cargo pump-rooms, oil fuel bunker
tanks or ballast tanks; and
.2 have at least one portable fire-extinguisher. In cases where they contain internal combustion
machinery, one approved mobile foam-type extinguisher of at least 45 l capacity or equivalent
shall be arranged in addition to portable fire-extinguishers. If operation of a mobile fire
extinguisher is impracticable, this fire-extinguisher may be replaced by two additional portable
fire-extinguishers.
Where deemed necessary for the safety or navigation of the ship, machinery spaces containing
internal combustion machinery not being main propulsion machinery having an output greater than 375
kW may be located forward of the cargo area, provided the arrangements are in accordance with the
provisions of the present paragraph.
6.3.2.2
Cargo Pump-Rooms
6.3.2.2.1 Cargo pump-rooms (where pumps of cargo such as cargo pumps, stripping pumps and pumps
for crude oil washing of cargo tanks are provided) shall be positioned forward of machinery spaces.
Cargo pump-rooms shall be considered as separate spaces surrounded by gas-tight divisions.
6.3.2.2.2 Pump-rooms containing pumps and their accessories for ballasting those spaces situated
adjacent to cargo tanks and slop tanks and pumps for oil fuel transfer, shall be considered as equivalent
to a cargo pump-room within the context of this regulation provided that such pump-rooms have the
same safety standard as that required for cargo pump-rooms.
Pump-rooms intended solely for ballast or oil fuel transfer serving spaces not adjacent to cargo tanks
need not fulfil the requirements for cargo pump-rooms.
6.3.2.2.3 The lower portion of the pump-room may be recessed into machinery spaces of category A to
accommodate pumps, provided that the deck head of the recess is in general not more than one-third of
the moulded depth H (for H see 1.2, Part II – Hull) above the keel, except that in the case of ships of not
more than 25,000 tonnes deadweight, where it can be demonstrated that for reasons of access and
satisfactory piping arrangements this is impracticable, PRS may permit a recess in excess of such height,
but not exceeding one-half of the moulded depth above the keel.
6.3.2.2.4 To ensure fire safety in cargo-pump rooms during assembly, inspection and maintenance,
reference is made to the guidelines set out in MSC.1/Circ.1321.
6.3.2.3
Accommodation Spaces, Service Spaces, Control Stations and Cargo Control Stations
6.3.2.3.1 Accommodation spaces, service spaces, control stations and main cargo control stations
(excluding isolated cargo handling gear lockers) shall be positioned aft of cargo tanks, slop tanks, and
spaces which isolate cargo or slop tanks from machinery spaces, but not necessarily aft of the oil fuel
bunker tanks and ballast tanks, and shall be so arranged that a single failure of a deck or bulkhead will
not enable the entry of gas or vapours from the cargo tanks into an accommodation space, main cargo
control stations, control station or service spaces.
6.3.2.3.2 Exceptionally, where deemed necessary, PRS may permit accommodation and service spaces,
control stations and the main cargo control stations forward of the cargo tanks, slop tanks and spaces
which isolate cargo and slop tanks from machinery spaces.
6.3.2.3.3 Where the fitting of a navigation position above the cargo area is shown to be necessary, it
shall be for navigation purposes only and it shall be separated from the cargo tank deck by means of an
open space with a height of at least 2 m. Fire protection requirements for such a navigation position shall
additionally fulfil the requirements for control stations on tankers, as specified in Tables 6.3.3-1 and
6.3.3-2 and other relevant paragraphs of Part V relevant to tankers.
Additional Requirements
163
6.3.2.3.4 In way of accommodation spaces, a smoking room shall be arranged. The room shall be
protected by B-15 Class divisions, the interior finishing of the room shall be made of materials with low
flame-spread characteristics and it shall be provided with sufficient ventilation.
6.3.2.3.5
used.
6.3.2.4
In accommodation spaces and service spaces, only IC method, specified in 2.2.3.1, shall be
Requirements for Combination Carriers
In combination carriers intended for the alternate carriage of petroleum products and dry cargoes in
bulk, the following requirements shall be fulfilled:
.1 the slop tanks shall be surrounded by cofferdams, except where the boundaries of the slop tanks
are formed by: the hull, the main cargo deck, cargo pump-room bulkhead or oil fuel storage tank.
These cofferdams shall not be open to a double bottom, pipe tunnel, pump-room or other
enclosed space nor shall they be used for cargo or ballast and shall not be connected to piping
systems serving oil cargo or ballast. Means shall be provided for filling the cofferdams with
water and for draining them. Where the boundary of a slop tank is part of the cargo pump-room
bulkhead, the pump room shall not be open to the double bottom, pipe tunnel or other enclosed
space; however, openings provided with gastight bolted covers are permitted;
.2 hatches and tank cleaning openings to slop tanks are only permitted on the open deck and they
shall be fitted with closing arrangements. Except where they consist of bolted plates with bolts at
watertight spacing, these closing arrangements shall be provided with locking arrangements
which prevent unauthorised opening.
.3 in cargo pump-rooms, pipe tunnels, and cofferdams mentioned in sub-paragraph .1 adjacent to
slop tanks, a type-approved fixed hydrocarbon gas detection system shall be installed in
accordance with the requirements specified in 4.4 to give warning of such a gas and to monitor
flammable vapours. Suitable arrangements shall be made to facilitate measurement of flammable
vapours in all other spaces within the cargo area. Such measurements shall be made possible
from the open deck or easily accessible positions.
6.3.2.5
Requirements for Exterior Boundaries of Superstructures
and Cargo Deck
6.3.2.5.1 Permanent continuous coaming reaching from side to side, at least 300 mm in height, shall be
provided on the open deck about 2 m from the front bulkhead of the superstructure containing
accommodation and service spaces so that any cargo spilled on the deck could not penetrate into the
accommodation and service space area.
Where stern loading station is installed on board the ship, such coaming shall also be provided at the
stern bulkhead of the superstructure.
6.3.2.5.2 Exterior boundaries of superstructures and deckhouses enclosing accommodation spaces,
including any overhanging decks which support such spaces shall be constructed of steel and A-60 Class
standard type for the whole length in the cargo area and on the sides for the length of 3 m aft from the
end boundary of the cargo space area on every deck. The superstructure and deckhouse bulkheads which
face the cargo area should be provided (at 3 m length) with A-60 Class standard insulation up to the
underside of the deck of the navigation bridge.
Penetrations of pipes, cables and ventilation ducts through exterior boundaries of superstructures,
which are required to be of A-60 Class standard, shall fulfil the requirements specified in 2.2.5.
6.3.2.5.3 In boundary bulkheads of superstructures and deckhouses, access doors, air inlets and
openings to accommodation spaces, service spaces, control stations and machinery spaces shall not face
the cargo area. They shall be located on the transverse bulkhead not facing the cargo area or on the
outboard side of the superstructure or deckhouse at a distance of at least 4% of the length of the ship but
not less than 3 m from the end of the superstructure or deckhouse facing the cargo area. This distance,
however, need not exceed 5 m.
164
Fire Protection
Access to forecastle spaces containing sources of ignition is permitted through doors facing the cargo
area, provided that such doors are located outside hazardous areas as defined in IEC Publication 60092502.
6.3.2.5.4 In boundary bulkheads of superstructures facing the cargo area and on the sides of
superstructures at a distance less than that specified in 6.3.2.5.3, access doors to main cargo control
stations and to such service spaces as provision rooms, store-rooms and lockers may be fitted, provided
they do not give access to accommodation spaces, control stations and other service spaces – such as
galleys, pantries or workshops – in which potential sources of flammable vapour ignition may exist.
Boundaries of such spaces shall be insulated to A-60 Class standard, with the exception of the boundaries
facing the cargo area.
In the above-mentioned boundaries, openings closed with bolted plates, for the removal of machinery
may be provided.
In these boundaries, the navigation bridge doors and windows may be fitted, provided they are
gastight 81.
In these boundaries, access to a deck foam system room (including the foam tank and control station)
is permitted, provided that the door is located flush with the bulkhead.
6.3.2.5.5 Windows and sidescuttles facing the cargo area and installed on the sides of the
superstructures and deckhouses within the limits specified in 6.3.2.5.3 shall be of the fixed (non-opening)
type. Such windows and sidescuttles, except wheelhouse windows, shall be constructed to A-60 Class
standard.
The location of the windows and sidescuttles shall correspond to a prototype subjected to fire test
with the fire against its external side (i.e. the side which, after installation on board, will be exposed to
the weather).
Windows and sidescuttles mounted in excess of the limits, specified in 6.3.2.5.3, may be constructed
to A-0 Class standard.
6.3.2.5.6
6.3.3
Rubbing strakes shall be made of, or faced with, material precluding spark formation.
Fire Integrity of Bulkheads and Decks
6.3.3.1 The minimum fire integrity of vertical divisions (partitions, bulkheads) separating adjacent
spaces shall be in accordance with Table 6.3.3-1 and the minimum fire integrity of decks – in accordance
with Table 6.3.3-2.
81
The navigation bridge external doors and windows considered gastight shall be tested for gastightness. If a water hose test is
applied, the following shall be taken as a guide:
– nozzle diameter: minimum 12 mm;
– water pressure just before the nozzle: not less than 0.2 MPa; and
– distance between the nozzle and the doors or windows: maximum 1.5 m.
165
Additional Requirements
Table 6.3.3-1
Fire integrity of bulkheads separating adjacent spaces
Spaces
Control stations
Corridors
(1)
(2)
Accommodation spaces
(3)
Stairways
(4)
Service spaces of low fire risk
Machinery spaces of category A
Other machinery spaces
Cargo pump-rooms
Service spaces of high fire risk
Open decks
(5)
(6)
(7)
(8)
(9)
(10)
(1)
A-0c)
(2)
A-0
C
(3)
A-60
B-0
C
(4)
A-0
B-0
A-0a)
B-0
A-0a)
B-0
A-0a)
(5)
A-15
B-0
(6)
A-60
A-60
(7)
A-15
A-0
(8)
A-60
A-60
(9)
A-60
A-0
(10)
*
*
B-0
A-60
A-0
A-60
A-0
*
B-0
A-0a)
C
A-60
A-0
A-60
A-0
*
A-60
*
A-0
A-0
A-0b)
A-60
A-0d)
A-0
*
A-0
A-60
A-0
A-60
A-0b)
*
*
*
*
*
–
Table 6.3.3-2
Fire integrity of decks separating adjacent spaces
Space above →
Space below ↓
Control stations
(1)
Corridors
(2)
Accommodation spaces
(3)
Stairways
(4)
Service spaces of low fire risk
(5)
Machinery spaces of category A (6)
Other machinery spaces
(7)
Cargo pump–rooms
(8)
Service spaces of high fire risk
(9)
Open decks
(10)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
A-0
A-0
A-60
A-0
A-15
A-60
A-15
–
A-60
*
A-0
*
A-0
A-0
A-0
A-60
A-0
–
A-0
*
A-0
*
*
A-0
A-0
A-60
A-0
–
A-0
*
A-0
A-0
A-0
*
A-0
A-60
A-0
–
A-0
*
A-0
*
*
A-0
*
A-60
A-0
–
A-0
*
A-60
A-60
A-60
A-60
A-60
*
A-0
A-0d)
A-60
*
A-0
A-0
A-0
A-0
A-0
A-60e)
*
A-0
A-0
*
–
–
–
–
–
A-0
A-0
*
–
*
A-0
A-0
A-0
A-0
A-0
A-60
A-0
–
A-0b)
*
*
*
*
*
*
*
*
*
*
–
166
Fire Protection
Notes to Table 6.3.3-1 and Table 6.3.3-2, as appropriate:
a)
For clarification as to which applies, see 2.2.3 and 2.2.4.
b)
Where spaces are in the same numerical category, a bulkhead or deck of the rating shown in the Tables is only required
when the adjacent spaces are for a different purpose, for example, in category (9) a galley next to a galley does not require a
bulkhead, but a galley next to a paint room requires an A-0 bulkhead.
c)
Bulkheads separating the navigation bridge, the chartroom and radio room from each other may be of B-0 rating.
d)
Bulkheads and decks between cargo pump-rooms and machinery spaces of category A may be penetrated by cargo pump
shaft glands and similar gland penetrations, provided that gastight seals with efficient lubrication or other means ensuring
the permanence of the gas seal are fitted in way of the bulkhead or deck penetrations.
e)
Fire insulation need not be fitted in the machinery space in category (7) of low fire risk. To determine such machinery space
– see 6.1.4.2(10).
* Where an asterisk appears in the table, the division is required to be of steel or other equivalent material, but is not required
to be of A Class standard. However, where a deck, except an open deck, is penetrated for the passage of electric cables,
pipes and vent ducts, such penetrations shall be made tight to prevent the passage of flame and smoke. Divisions between
control stations (emergency generators) and open decks may have air intake openings without means for closure, unless a
fixed gas fire-fighting system is fitted.
6.3.3.2
The principles, given in 2.2.2.2, shall govern the application of the Tables.
The spaces have been subdivided into 10 categories according to their fire risk:
(1) Control stations:
– spaces containing emergency sources of power and lighting (battery rooms and spaces containing
emergency power generating units);
– wheelhouse and chartroom, radar transmitter rooms;
– spaces containing the ship’s radio equipment;
– fire control station;
– control rooms for propulsion machinery when located outside the machinery space;
– spaces containing centralised fire alarm equipment.
(2) Corridors – corridors and lobbies.
(3) Accommodation spaces – see the definitions given 1.2.51, excluding corridors.
(4) Stairways – interior stairways, lifts, totally enclosed emergency escape trunks and escalators (other
than those wholly contained within the machinery spaces) and enclosures thereto. A stairway which
is enclosed at one level only are regarded as part of the space from which it is not separated by a fire
door.
(5) Service spaces (low fire risk):
– lockers and store-rooms not having provisions for the storage of flammable liquids and having
areas less than 4 m2 as well as drying rooms and laundries;
– identifiable spaces containing electrical distribution boards (having a deck area of 4 m2 or less);
– refrigerated provision chambers thermally insulated with non-combustible material.
(6) Machinery spaces of category A – spaces as defined in sub-chapter 1.2.65.
(7) Other machinery spaces:
– spaces as defined in 1.2.64, excluding machinery spaces of category A;
– rooms containing electrical equipment, e.g. auto-telephone exchange, distribution boards, airconditioning duct spaces.
(8) Cargo pump-rooms – all spaces containing cargo pumps including trunkways and hatchways to
such spaces.
(9) Service spaces (high fire risk) – galleys, pantries containing cooking appliances, paint and
flammable liquids rooms, lockers and store-rooms having areas of 4 m2 or more, saunas, as well as
workshops other than those forming part of the machinery spaces, garbage handling and storage
spaces, as well as refrigerated provision chambers thermally insulated with combustible material.
(10) Open decks – open deck spaces and enclosed promenades having no fire risk, as well as air spaces
outside superstructures and deckhouses.
6.3.3.3 Permanent gastight glazed ports, of approved type, for illuminating cargo pump-rooms, may be
fitted in bulkheads and deck separating cargo pump-rooms and other spaces, provided they are of
adequate strength and the fire integrity and gastightness of the bulkhead or deck is maintained.
Additional Requirements
167
Glazed ports shall be protected against mechanical damage and shall be provided with strong covers
capable of being closed from outside the cargo pump-room.
Glazed ports shall be so constructed that glass and sealing will not be impaired by the working of the
ship.
The glass and the protection of the light fitting shall not impair the integrity of the bulkhead and shall
be of equivalent strength.
The fitting shall have the same resistance to fire and smoke as the unpierced bulkhead.
6.3.3.4 Skylights to cargo pump-rooms shall be made of steel, shall not contain any glass and shall be
capable of being closed from outside the pump-room.
6.3.3.5 The construction and arrangement of saunas shall fulfil the requirements stated in 6.1.1.7. The
sauna shall be insulated to A-60 Class standard against other spaces except those inside of the perimeter
and spaces of categories (5), (7) and (10), specified in 6.3.3.2.
6.3.4
6.3.4.1
Cargo Tanks and Pump-Room Fire Protection
Fixed Deck Foam Systems
6.3.4.1.1 Tankers, irrespective of their deadweight, shall be provided with a fixed deck foam system in
accordance with the requirements specified in 3.9 to protect the cargo tanks deck.
6.3.4.1.2 For tankers of 20 000 tonnes deadweight and upwards, an equivalent fixed installation is
permitted provided that such an installation shall:
.1 be capable of extinguishing spill fires (of spilled cargo) and also preclude ignition of spilled oil
not yet being ignited;
.2 be capable of combating fires in ruptured tanks.
6.3.4.1.3 Tankers with fore or aft loading stations (located outside the cargo area) shall be provided
with foam system for protecting these stations, of the capacity 6 l/min per 1 m2 of the surface area.
6.3.4.2
Inert Gas Systems
6.3.4.2.1 The inert gas system is intended for the protection of cargo tanks. The inert gas system shall
be capable of inerting, purging and gas-freeing empty tanks and maintaining the non-flammable
atmosphere in cargo tanks with the required oxygen content.
6.3.4.2.2 For tankers of 8,000 tonnes deadweight and upwards constructed on or after 1 January 2016
when carrying crude oil or flammable cargoes of flash point lower than 60oC, the protection of the cargo
tanks shall be achieved by a fixed inert gas system in accordance with the requirements of subchapter
3.10, except that other equivalent systems or arrangements, as described in paragraphs 6.3.4.2.5 and
6.3.4.2.6 may be accepted.
6.3.4.2.3 For tankers of 20,000 tonnes deadweight and upwards constructed on or after 1 July 2002
but before 1 January 2016, the protection of the cargo tanks shall be achieved by a fixed inert gas system
in accordance with the requirements of the FSS Code, Chapter 15 as adopted by resolution MSC.98(73),
except that other equivalent systems or arrangements, as described in paragraph 6.3.4.2.5 may be
accepted.
6.3.4.2.4 Tankers, irrespective of deadweight, operating with a cargo tank cleaning procedure using
crude oil washing shall be fitted with an inert gas system complying with the requirements of subchapter
3.10 and with fixed tank washing machines.
However, inert gas systems fitted on tankers constructed on or after 1 July 2002 but before 1 January
2016 shall comply with the FSS Code, Chapter 15, as adopted by resolution MSC.98(73).
168
Fire Protection
6.3.4.2.5 After having given consideration to the ship's specific arrangement and equipment, other
fixed installations ensuring equivalent protection and complying with requirements given in 6.3.4.2.7
may be accepted instead of fixed inert gas system.
6.3.4.2.6 For tankers of 8,000 tonnes deadweight and upwards but less than 20,000 tonnes deadweight
constructed on or after 1 January 2016, in lieu of fixed installations as required by paragraph 6.3.4.2.3,
other equivalent arrangements or means of protection complying with the requirements of 6.3.4.2.7 may
be accepted.
6.3.4.2.7 Where an installation or a means of protection equivalent to a fixed inert gas system is
installed, it shall be:
.1 capable of preventing dangerous accumulations of explosive mixtures in intact cargo tanks
during normal service throughout the ballast voyage and necessary in-tank operations; and
.2 so designed as to minimise the risk of ignition from the generation of static electricity by the
system itself.
6.3.4.2.8 Tankers required to be fitted with inert gas systems shall fulfil the following requirements:
.1 double hull spaces and segregated ballast tanks adjacent to cargo tanks shall be fitted with
suitable connections for the supply of inert gas;
.2 where such hull spaces or tanks are connected to a permanently fitted inert gas distribution
system, means shall be provided to prevent hydrocarbon gases from the cargo tanks entering
such double hull spaces or tanks through the system; and
.3 where such spaces or tanks are not permanently connected to an inert gas distribution system,
proper hose assemblies shall be used to allow connection to the inert gas main.
Ballast system pipes are permitted to be used for conveying inert gas to the separated ballast tanks.
6.3.4.2.9 Onboard a tanker, procedures for operation of inert gas system shall be provided, which shall
include the below recommendations:
.1 the inert gas system shall be so operated as to render and maintain the atmosphere of the cargo
tanks non-flammable, except when such tanks are required to be gas-free;
.2 if the oxygen content of the inert gas exceeds 5% by volume, immediate action shall be taken to
improve the gas quality. Unless the quality of the gas improves, all operations in those cargo tanks
to which inert gas is being supplied shall be suspended so as to avoid air being drawn into the
cargo tanks, the gas regulating valve, if fitted, shall be closed and the off-specification gas shall be
vented to atmosphere 82.
.3 in the event that the inert gas system is unable to meet the requirement in .1 and it has been
assessed that it is impractical to effect a repair, then cargo discharge and cleaning of those cargo
tanks requiring inerting shall only be resumed when suitable emergency procedures have been
followed, taking into account guidelines developed by IMO. 83
6.3.4.3
Arrangements for Gas Measurement in Double Hull
and Double Bottom Spaces
6.3.4.3.1 Construction of the double hull spaces shall be such as to enable measuring oxygen and
flammable vapour concentrations in such spaces with portable flammable vapour detectors using flexible
gas sampling hoses.
6.3.4.3.2 Where the atmosphere in double hull spaces cannot be reliably measured using flexible gas
sampling hoses, such spaces shall be fitted with permanent gas sampling lines. The configuration of gas
sampling lines shall be adapted to the design of such spaces.
6.3.4.3.3 The materials of construction and diameters of gas sampling lines shall be such as to prevent
their restriction. Where such lines are made of plastic materials, they should be electrically conductive.
82
83
The requirement applies to ships constructed on or after 1 January 2016.
Refer to the Clarification of inert gas system requirements under the Convention (MSC/Circ.485) and to the Revised
Guidelines for inert gas systems (MSC/Circ.353), as amended by MSC/Circ.387.
Additional Requirements
169
6.3.4.3.4 In addition to compliance with the requirements concerning portable equipment for measuring
oxygen and for measuring flammable vapour concentrations, specified in 6.3.11, oil tankers of 20,000
tonnes deadweight and above, constructed on or after 1 January 2012, shall be provided with a fixed
hydrocarbon gas detection system in accordance with the requirements specified in sub-chapter 4.4 for
measuring hydrocarbon gas concentrations in all ballast tanks and void spaces of double-hull and doublebottom spaces adjacent 84 to the cargo tanks 85, including the forepeak tank and any other tanks and
spaces 86 under the bulkhead deck adjacent79 to cargo tanks.
The hydrocarbon gas detection system should be also provided in fresh water tanks, ballast pumprooms, bow thruster rooms, etc. located under the bulkhead deck adjacent to cargo or slop tanks
(excluding slop tanks used solely for the retention of oily water).
The hydrocarbon gas detection system need not be used in fuel tanks located adjacent to cargo tanks.
6.3.4.3.5 Oil tankers provided with constant operative inerting systems (COIS) in spaces referred to in
6.3.4.3.4 need not be equipped with fixed hydrocarbon gas detection equipment.
The constant operative inerting systems (COIS) intended to be installed in the above spaces shall
comply with additional recommendations given in 3.10.5.
Due to the safety hazards related to inerting of spaces that are arranged for normal entry during
operation, the use of COIS should not be permitted for such spaces.
6.3.4.3.6 Cargo pump-rooms provided with additional arrangements to prevent explosion in cargo
pump-rooms, as required in 6.3.5.2, need not be equipped with fixed hydrocarbon gas detection system.
6.3.4.4
Detection of Flammable Vapours on Combination Carriers
An approved fixed gas warning system capable of monitoring flammable vapours shall be provided in
cargo pump-rooms, pipe ducts and cofferdams, mentioned in 6.3.2.4, adjacent to slop tanks. Suitable
arrangements shall be made to facilitate measurement of flammable vapours in all other spaces within the
cargo area. Such measurements shall be made possible from the open deck or easily accessible positions.
6.3.4.5
Portable Fire-Extinguishers
On tankers with open deck, at least two portable fire-extinguishers shall be provided.
6.3.4.6
Pipe Trunk within Cargo Tanks Deck Area
Where an enclosed pipe trunk is situated within the cargo tanks deck area, the pipe trunk:
.1 shall be protected by one of the fixed fire-extinguishing systems (total flooding) required in
6.3.5.1. The extinguishing system shall be operated from a readily accessible position outside the
pipe trunk;
.2 is not considered part of the cargo tanks deck area;
.3 the area of the pipe trunk need not be included in the calculation of the foam solution rate of
supply for the fixed deck foam system required in 6.3.4.1;
.4 shall be adequately ventilated and provided with lighting interlocked with ventilation, as well as
system for continuous monitoring of the concentration of hydrocarbon gases, in accordance with
the requirements for cargo pump-rooms, specified in 6.3.5.2;
.5 shall contain no flammable gas sources other than pipes and flanges. If the pipe trunk contains
any other source of flammable gas, i.e. valves and pumps, it is regarded as a cargo pump-room.
Hull compartments and double-bottom compartments shall be fitted with suitable connections to
ensure air supply, see paragraph 22.5.1.4.9 in Part VI of the Rules.
84
The term “adjacent” includes ballast tanks, void spaces, other tanks or compartments located below the bulkhead deck
adjacent to cargo tanks and includes any spaces or tanks located below the bulkhead deck which form a cruciform (corner to
corner) contact with the cargo tanks.
85
The term “cargo tanks” includes slop tanks except those arranged for the storage of oily water only.
86
The term “spaces” includes dry compartments such as ballast pump-rooms and bow thruster rooms and any tanks such as
freshwater tanks, but excludes fuel oil tanks
170
Fire Protection
6.3.5
Fire Protection of Cargo Pump-rooms
The requirements specified in the present sub-chapter apply to pump-rooms containing pumps for
cargo, such as cargo pumps, stripping pumps, pumps for slop tanks, pumps for COW or similar pumps.
Pump-rooms intended solely for ballast transfer or oil fuel transfer need not fulfil these requirements.
6.3.5.1
Fixed Total Flooding Fire-Extinguishing Systems
6.3.5.1.1 Each cargo pump-room shall be provided with one of the following fixed total flooding fireextinguishing systems suitable for the protection of machinery spaces of category A:
.1 carbon dioxide system operated from a readily accessible position outside the pump-room in
accordance with the requirements specified in 3.6 or equivalent gas fire-extinguishing system,
referred to in 3.7, complying with the following requirements:
– warning signalization shall fulfil the requirements specified in 4.3 and 6.3.5.3;
– a notice shall be exhibited at the controls stating that due to the electrostatic ignition hazard,
the system is to be used solely for fire extinguishing and not for inerting purposes;
.2 high-expansion foam system in accordance with the requirements specified in 3.5.3, provided
that the foam concentrate supply is suitable for extinguishing fires involving the cargoes carried;
.3 water-spraying fire-extinguishing system in accordance with the requirements specified in 3.4.4.
The system shall be operated from an easily accessible position outside the cargo pump-room.
6.3.5.1.2 Where the extinguishing medium used in the cargo pump-room system is also used in systems
serving other spaces, the quantity of medium provided or its delivery rate need not be more than the
maximum required for the largest compartment.
6.3.5.2
Additional Arrangements to Prevent Explosion in Cargo Pump-rooms
Cargo pump-rooms shall be fitted with:
.1 temperature monitoring system for pumps, driven by shaft passing through pump-room
bulkheads, such as: cargo pumps, slop pumps, ballast pumps, stripping pumps, tank cleaning
pumps (except small pumps of 1 m3/h capacity or less and bilge pumps). Sensing points shall be
provided on bulkhead shaft glands, bearings and pump casing. The setting point shall be about 60
– 80 oC. The sensing points shall be fixed permanently. When the set point is reached, a signal
shall be automatically effected in cargo central room or the pump control station;
.2 lighting interlocked with ventilation;
.3 a system for continuous monitoring of the concentration of hydrocarbon gases in accordance with
the guidelines given in MSC.1/Circ.1321, Part IV, Chapter. 3.2;
.4 bilge 87 level monitoring devices,
for which the requirements specified in sub-chapter 22.5.7, Part VIII – Electrical Installations and
Control Systems shall be fulfilled.
6.3.5.3
Alarm Warning System in Cargo Pump-Room
Where a gas fire-extinguishing system is applied, an alarm system warning of the release of an
extinguishing medium to the cargo pump-room required in 3.6.3.7 shall:
.1 be air-operated and the air supply shall be properly dried and clean. Application of CO2 operated
alarms is not permitted owing to the possibility of the generation of static electricity in the CO2
cloud; or
.2 electrically operated, and the arrangements shall be of an explosion-proof type and such that the
electric actuating mechanism is located outside the pump room except where the alarms are
certified intrinsically safe.
6.3.5.4
Portable Fire-Extinguishers
In each cargo pump-room, at least two portable fire-extinguishers shall be provided.
87
Bilge high-level alarms are acceptable as an alternative means for the level monitoring devices.
Additional Requirements
6.3.5.5
171
Elimination of Potential Sources of Ignition
6.3.5.5.1
Any potential ignition sources in cargo pump room and in cargo area shall be effectively
protected.
6.3.5.5.2 Any penetration (including a movable part) passing through a pump-room bulkhead adjacent
to the engine room boundary or safety area shall be provided with the following:
.1 gas-tight sealing device with efficient lubricant (periodic greasing type is not permitted); and
.2 temperature measuring device.
6.3.5.6
Fire Detection and Alarm System
Cargo pump-rooms shall be fitted with fixed fire detection and alarm system, of approved type,
complying with the applicable requirements specified in 6.16.2. The system shall be suitable for use in
explosive atmosphere.
6.3.6
Fire-Extinguishing Arrangements in Machinery Spaces
Machinery spaces of category A in all tankers irrespective of gross tonnage shall be provided with fixed
total flooding fire-extinguishing system, required in 2.5.1.1.
6.3.7
Requirements for Paints and Flammable Liquids Store-Rooms
6.3.7.1 Paints and flammable liquids store-rooms shall fulfil the requirements specified in sub-chapter
2.8.
These requirements are not applicable to store-rooms regarded as cargo service spaces intended for
the stowage of cargo samples, when such spaces are situated within the cargo area.
6.3.7.2 Paint lockers, irrespective of their use, shall not be located above the cargo tanks, slop tanks
and compartments separating the cargo tanks or slop tanks from the machinery spaces.
6.3.8
Water Fire Main System
6.3.8.1 In addition to the requirements specified in the present sub-chapter, water fire main system
shall fulfil the requirements specified in sub-chapter 3.2.
6.3.8.2 Where an emergency fire pump is located in the forebody, means shall be provided to ensure
operation of this pump, as well as sea valves from both the pump-room and open deck.
6.3.8.3 Isolation valves shall be fitted in the water fire main at poop front in a protected position and
on the tank deck at intervals of not more than 40 m to preserve the integrity of the fire main system in
case of fire or explosion.
The isolation valves at the poop front in a protected position shall be located:
.1 within an accommodation space, service spaces and control station; or
.2 at least 5 m aft of the aft end of the aftermost cargo tank in case the valve is located on the open
deck; or
.3 if the above is not practical, within 5 m aft of the cargo area provided it is protected from the
cargo area by a permanent steel obstruction.
An information plate shall be provided at each valve to indicate that the valve shall always be kept
open during the ship’s normal operation.
The location of each isolating valve on the water fire main shall be indicated by a plate with the
symbol used on Fire Control Plan.
6.3.8.4 Before each isolating valve on the water fire main located on cargo deck, twin fire hydrants of
50 mm in diameter – for ships of gross tonnage not exceeding 1000, and of 65 mm in diameter – for
ships of gross tonnage more than 1000 shall be fitted, spaced equally over the length of the cargo deck.
172
Fire Protection
6.3.8.5 Ships with fore loading stations and single point mooring arrangements shall be provided with
the sprinkler system for drenching the anchor stoppers, with the application rate 5 l/min per 1 m2 of the
horizontal projection of the anchor stoppers, permanently connected to the water fire main system.
6.3.8.6 Fire hose attachment fittings shall not cause risk of sparking. Fire hose coupling and nozzles
used in the open deck area shall not be made from aluminium alloys.
6.3.9
Application of Aluminium Coatings
The application of aluminium coatings containing more than 10 per cent aluminium by weight in the
dry film is prohibited in cargo tanks, cargo tank deck area, cargo pump-rooms, cofferdams and any other
area where flammable vapour of cargo may accumulate.
Aluminised pipes may be permitted in:
.1 ballast tanks;
.2 inerted cargo tanks;
.3 hazardous areas on open deck, provided the pipes are protected from accidental impact.
6.3.10
Fire-Fighter’s Outfits
On each tanker, at least two fire-fighter’s outfits shall be provided in accordance with the
requirements specified in 5.1.4, additional to those required in 5.1.4.1.
6.3.11
Portable Instruments for Measuring Flammable Vapourand Oxygen Concentrations
6.3.11.1 Each tanker shall be equipped with at least two portable gas detectors capable of measuring
flammable vapour concentrations and at least two portable instruments for measuring oxygen
concentrations, together with a sufficient set of spares. Suitable means shall be provided for calibration
of such instruments. Alternatively, at least two dual-purpose type instruments capable of measuring both
oxygen and flammable vapours concentrations can be provided on board.
These instruments shall be capable of measuring flammable vapour concentrations in double hull and
double bottom spaces in connection with fixed air sampling pipings, referred to in 6.3.4.3.2.
6.3.11.2 In addition, for tankers fitted with inert gas systems, at least two portable gas detectors shall
be provided capable of measuring concentrations of flammable vapours in inerted atmosphere.
6.3.11.3 Suitable arrangement shall be made on each cargo tank such that the condition of the tank
atmosphere can be determined using these portable instruments.
6.4
6.4.1
Tankers (Product Carriers) Carrying Cargoes having a Flash-Point Exceeding
60 ºC – Mark: PRODUCT CARRIER B
Ship Construction
The product carriers shall, in general, fulfil the requirements for cargo ships, specified in Chapter 2.
In respect of the fire integrity of vertical and horizontal divisions separating adjacent spaces, the relevant
requirements for cargo ships, other than tankers, specified in 2.2.2, apply. Cargo pump-rooms shall be
treated as machinery spaces of category A.
6.4.2
Arrangement and Separation of Spaces
The arrangement of spaces with respect to cargo tanks shall fulfil the requirements specified in 6.3.2,
as appropriate, except the requirements regarding the hazardous cargo pump-rooms and cargo area.
Superstructure exterior boundaries and windows facing the cargo area need not be of A-60 Class
standard.
6.4.3
Fire Protection of Cargo Tanks, Machinery Spaces and Cargo Pump-Rooms
6.4.3.1 The tankers shall fulfil the requirements specified in Chapter 2, except that instead of the fixed
gas fire-extinguishing system required in 2.6.1 for the protection of cargo spaces, it shall be fitted with a
fixed deck foam fire-extinguishing system for the protection of the cargo tank area in accordance with
the requirements specified in sub-chapter 3.9.
Additional Requirements
173
The tankers of less than 2000 gross tonnage need not be fitted with the fixed deck foam fireextinguishing system.
6.4.3.2
Fire protection of the machinery spaces shall fulfil the requirements specified in sub-chapter 2.5.
6.4.3.3 Cargo pump-rooms shall be considered as machinery spaces of category A and the fire
protection arrangements shall be in accordance with sub-chapter 2.5.
6.4.3.4 Where cargo tanks are provided with cargo heating arrangements, the possibility of the
temperature measurement in cargo tanks shall be ensured and means shall be provided to prevent the
cargo from being heated to a temperature that would constitute fire risk.
6.4.4
Water Fire Main System
Water fire main system shall additionally fulfil the requirements specified in 6.3.8.
6.4.5
Fire-Fighter’s Outfits
On each tanker, two additional fire-fighter’s outfits shall be provided in accordance with the
requirements specified in 5.1.4.
6.5
6.5.1
Special Purpose Ships – Mark: SPECIAL PURPOSE SHIP
General
6.5.1.1 On ships carrying not more than 60 persons of special personnel on board, the fire protection
shall fulfil the requirements for cargo ships, specified in Chapter 2.
6.5.1.2 On ships carrying more than 60, but not more than 240 persons of special personnel on board,
the fire protection shall fulfil the requirements, in respect of general and additional requirements, for
passenger ships carrying not more than 36 passengers, specified in sub-chapter 6.1.
6.5.1.3 On ships carrying more than 240 persons of special personnel on board, the fire protection shall
fulfil the requirements, in respect of general and additional requirements, for passenger ships carrying
more than 36 passengers, specified in sub-chapter 6.1.
Additionally, such ships shall fulfil the requirements specified in 6.1.23 and 6.1.24.
6.5.1.4 The minimum fire integrity of bulkheads and decks separating industrial spaces in ships,
mentioned in paragraphs 6.5.1.1 and 6.5.1.2, shall fulfil the requirements specified in 2.2.2.2 for service
spaces of category (5) or (9), respectively, whereas in ships mentioned in paragraph 6.5.1.3 – the
requirements specified in paragraph 6.1.4.2 for spaces of category (10) or (14), respectively.
6.5.1.5 In industrial spaces, where due to their functions, A-60 Class division cannot be made, water
screen system complying with the requirements specified in 3.4.9 may be applied.
6.5.2
Store-Rooms for Explosives
6.5.2.1 In special purpose ships, the arrangement of store-rooms for explosives may be made, provided
the requirements specified in paragraphs 6.5.2.2 to 6.5.2.22 are fulfilled. The store-rooms of the
following type may be provided:
.1 built-in store-rooms – spaces which constitute part of the ship’s hull structure;
.2 portable self-contained store-rooms – spaces which do not constitute part of the ship’s hull
structure, of the volume of 3 m3 or more;
.3 portable boxes for the storage of explosives – boxes which do not constitute part of the ship’s
hull structure, of the volume less than 3 m3.
6.5.2.2 Built-in store-rooms shall be situated in the forward or after part of the ship’s hull and shall be
separated from the propeller shaft, propeller and rudder by at least one watertight compartment. Storerooms shall not be located under accommodation spaces, control stations and fuel storage spaces, neither
be adjacent thereto.
174
Fire Protection
6.5.2.3 Built-in store-rooms shall not be adjacent to machinery spaces of category A, boiler rooms,
galley and other fire hazardous spaces. If, however, such location cannot be avoided, a cofferdam of at
least 0.6 m in width, separating these spaces, shall be provided. The cofferdam shall be fitted with
ventilation and shall be empty. One of the walls enclosing the cofferdam shall be of A-15 Class division.
Where the cofferdam is adjacent to machinery space of category A, the isolating wall shall be of A-30
Class division.
6.5.2.4 Access to store-rooms built in the ship’s hull shall be provided from the open deck through a
watertight or gastight door. In no case shall the access to store-rooms be provided through spaces
mentioned in paragraphs 6.5.2.2 and 6.5.2.3.
6.5.2.5 Self-contained store-rooms and boxes for explosives shall be located on the open deck in
protected places.
6.5.2.6 Boxes for the storage of explosives shall be located on the open deck in places affording easy
disposal of the content of the boxes overboard in case of emergency.
6.5.2.7 Bulkheads and decks forming store-rooms for explosives shall be watertight and constructed of
steel. They shall be of A-15 Class division. Insulation preventing water condensation shall be provided.
6.5.2.8 Pipelines of fresh water, sea water and bilge installation may be run through store-rooms for
explosives.
Pipelines of other installations may be run through the store-rooms, provided they are encased in a
watertight duct.
6.5.2.9
Doors and covers of store-rooms shall be provided with means enabling them to be locked.
6.5.2.10 Store-rooms shall be fitted with shelves. The construction and the capacity of the shelves shall
be such as to secure the safe stowage of the entire store of explosives in containers of the approved type
and to preclude the latter from shifting or falling in case of roll.
The upper shelf shall not be located higher than 1.8 m above the floor. The shelves shall have holes to
facilitate the flow of water from the upper to the lower shelves during the operation of the water-spraying
system.
6.5.2.11 The floor of store-rooms shall be covered with permanent, antislip material precluding spark
formation, such as floor-mats.
6.5.2.12 The free volume of the store-room, when loaded, shall be at least 70% of the entire storeroom space and the cubic capacity of the store-room shall not be less than one cubic metre per each 100
kg of explosives or 1000 detonating fuses.
6.5.2.13 Store-rooms built in the ship’s hull shall be provided with natural or mechanical ventilation
which would ensure the temperature inside store-rooms not exceeding 38 ºC. Openings of this ventilation
shall be provided with flame arresters.
6.5.2.14 Portable store-rooms shall be provided with an effective natural ventilation, the inlet and
outlet openings of the ventilation being fitted with flame arresters.
6.5.2.15 Store-rooms shall be fitted with automatic temperature alarms whose detectors will operate at
temperatures rising above 40 °C. An appropriate signal indicator shall be provided on the navigation bridge
and in the ship’s fire officer cabin.
6.5.2.16 Built-in and portable store-rooms for explosives shall be fitted with water-spraying system in
accordance with the requirements specified in 3.4. Control devices shall be clearly marked.
6.5.2.17 Scuppers shall be fitted in the store-room decks. The scupper pipes shall be fitted with valves
which shall be kept permanently closed under normal service conditions. The valves shall be controlled
from outside the store-room.
Additional Requirements
175
6.5.2.18 Portable store-rooms shall be fitted with plates stating the weight of the empty store-room and
the weight of the store-room loaded to a maximum.
6.5.2.19 Boxes for the stowage of explosives shall be watertight and constructed of metal. The thickness of
the walls and cover of the boxes shall not be less than 3 mm. Surfaces exposed to a direct solar radiation shall
be provided with a protective screen.
6.5.2.20 Store-rooms shall be provided with the following conspicuous inscriptions:
.1 Store-room for explosives;
.2 Do not approach with open fire;
.3 Keep the door closed.
6.5.2.21 Boxes for the stowage of explosives shall be provided with the following conspicuous
inscriptions:
.1 Box for the stowage of explosives;
.2 Do not approach with open fire;
.3 Unauthorised opening prohibited.
6.5.2.22
Special rooms shall be provided for the stowage of fuses.
6.5.2.23 Electrical equipment of the store-rooms for explosives shall fulfil the requirements specified
in sub-chapter 22.5.3, Part VIII – Electrical Installations and Control Systems.
6.5.3
Fire Detection and Fire Alarm System
6.5.3.1 Fire detection and fire alarm system shall be provided in ships of 1000 gross tonnage and
upwards and in the case when method IIIC of fire protection is applied – also in ships of 500 gross
tonnage and upwards.
In spaces fitted with automatic sprinkler system, fire detection and fire alarm system need not be
provided.
6.5.3.2 Fire detection and fire alarm system shall be provided in the following spaces:
.1 accommodation and service spaces;
.2 store-rooms for explosives, readily ignitable materials and flammable liquids, as well as welding
shops;
.3 control stations (except CCS, accumulator battery rooms and converter rooms);
.4 cargo spaces intended for the carriage of dangerous goods.
6.5.3.3
.1
.2
.3
.4
.5
Manually operated call points shall be provided in the following places:
corridors of accommodation, service and public spaces;
entrance halls;
public spaces having an area of more than 150 m2;
machinery spaces of category A and main control stations;
industrial spaces.
6.5.4
Early Detection of Fire in Periodically Unattended Machinery Spaces
On special purpose ships carrying not more than 240 persons on board, in periodically unattended
machinery spaces, means shall be provided for early detection of fire in accordance with the requirements
specified in 6.16.5.
6.6
Tugs and Supply Vessels – Marks: TUG, SUPPLY VESSEL
6.6.1 In each tug and supply vessel of gross tonnage 150 and upwards or with combined propulsion
power more than 735 kW, machinery spaces of category A shall be fitted with total-flooding fireextinguishing systems in accordance with the requirements specified in 2.5.1.1.
6.6.2 Tugs and supply vessels serving crude oil tankers, product carriers and barges carrying cargoes
with a flash-point not exceeding 60°C shall, additionally, fulfil the following requirements:
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Fire Protection
.1
.2
.3
the ship shall be provided with a fixed deck foam fire-extinguishing system complying with the
applicable requirements specified in 3.9, capable of delivering foam to the open deck. Instead of the
fixed deck foam fire-extinguishing system, 45 l capacity mobile foam-type fire-extinguishing unit
with a reeled hose ensuring delivery of the foam to the open deck, is permitted;
exhaust pipes shall be fitted with spark arresters in accordance with the requirements specified in
paragraph 10.1.3, Part VI – Machinery Installations and Refrigerating Plants;
rubbing strakes and deck equipment shall be so made as to preclude spark formation.
Tugs and supply vessels serving the LNG tankers, in addition to compliance with the requirements
specified in 6.6.2, shall be equipped with:
.1 methane detection system provided with detectors fitted on weather deck and an alarm in
navigation bridge;
.2 water spraying systems for bow fenders;
.3 lighting fittings of lighting systems on open decks and all electrical appliances installed on open
decks – certified as explosion-proof design.
The above equipment is subject to PRS survey during ship construction and operation.
6.6.3
6.7
Floating Cranes – Mark: FLOATING CRANE
6.7.1 The number of the main fire pumps and the pressure of the discharged water shall be in
accordance with Table 3.2.1.1, except that in floating cranes with gross tonnage less than 2000, only one
fire pump is required.
6.7.2 Water fire main system shall have one branch on either side led out to the open deck, terminated
with an international shore connection complying with the requirements specified in 3.2.9 and intended
to provide a supply of water from an extraneous source to all fire-extinguishing systems.
6.8
6.8.1
Container Ships – Mark: CONTAINER SHIP
General
6.8.1.1 The open-top containership means a ship specially designed so that one or more holds are not
provided with covers.
6.8.1.2 For open-top container holds and on deck container stowage areas on ships designed to carry
containers on or above the weather deck, fire protection arrangements shall be provided for the purpose of
containing a fire in the space or area of origin and cooling adjacent areas to prevent fire spread and structural
damage.
6.8.2
Fire Protection of Open-top Containerships
6.8.2.1 Open-top containership shall be provided with water-spraying system complying with the
requirements specified in 3.4.8.
6.8.2.2 Whenever a fire detection and fire alarm system is used in the open hold area, the system shall
be so designed and arranged to take account of the specifics of hold, container configuration and
ventilation.
6.8.3
Fire Protection of Containerships Carrying containers on or above Weather Deck 88
6.8.3.1 Each such containership shall carry at least one water mist lance. The water mist lance shall
consist of a tube with a piercing nozzle which is capable of penetrating a container wall and producing
water mist inside a confined space of the container when connected to the fire main.
6.8.3.2 Ships designed to carry 5 or more tiers of containers on or above the weather deck shall carry
mobile water monitors, as follows:
.1 ships with breadth less than 30 m: at least 2 mobile water monitors; or
88
The requirements of this subchapter apply to ships constructed on or after 1 January 2016.
Additional Requirements
177
.2 ships with breadth of 30 m or more: at least 4 mobile water monitors.
6.8.3.3 The mobile water monitor shall be of an approved type based on the guidelines given in the
Annex to MSC.1/Circ.1472 and shall have a set of hoses and fittings to be connected to hydrant valve of
water fire mains and fixed to the ship structure.
6.8.3.4 There shall be a place provided on weather deck, among the transverse bays of containers for
moving the mobile water monitors and places for fixing the monitors to the ship structure, to ensure the
possibility of delivering water to each tier of containers in a bay, from each side.
6.8.3.5 The mobile water monitors, all necessary hoses, fittings and required fixing hardware shall be
kept ready for use in a location outside the cargo space area not likely to be cut-off in the event of a fire
in the cargo spaces.
6.8.3.6 A sufficient number of fire hydrants shall be provided on the weather deck such that:
.1 all provided mobile water monitors can be operated simultaneously for creating effective water
barriers forward and aft of each container bay;
.2 the two jets of water required by paragraph 3.2.6.3 can be supplied at the required pressure, and
.3 each of the required mobile water monitors can be supplied by separate hydrants at the pressure
necessary to reach the top tier of containers on deck.
6.8.3.7 The mobile water monitors may be supplied by the fire main, provided the capacity of fire
pumps and fire main diameter are adequate to simultaneously operate all the mobile water monitors and
to deliver two jets of water from fire hoses at the required pressure values. If the ship carries dangerous
goods, the capacity of fire pumps and diameter of fire main on the cargo area deck shall also comply with
the requirements of 2.10.3.3.4, as far as practicable.
6.8.3.8 Prior to commissioning the ship, the operational performance of mobile water monitors shall be
tested to check operational characteristics. The test shall verify that:
.1 the mobile water monitor can be securely fixed to the ship structure, in places specially provided
on weather deck, ensuring safe and effective operation; and
.2 the mobile water monitor jet reaches the top tier of containers with all required monitors and water
jets from fire hoses operated simultaneously.
6.9
Oil Recovery Vessels – Mark: OIL RECOVERY VESSEL
6.9.1
Ship Construction
6.9.1.1 The hull, superstructures, deckhouses and decks shall be constructed of steel. The use of
aluminium alloys for these structures is not permitted.
6.9.1.2 The ship structure, fire integrity of vertical bulkheads and decks shall fulfil the relevant
requirements for tankers carrying cargoes with a flash-point not exceeding 60°C, specified in 6.3.2 and
6.3.3.
6.9.1.3 Exterior boundaries of superstructures and deckhouses shall be of A-60 Class over the whole
height from the upper deck upwards, unless the application rate of water screens in accordance with the
requirements of 6.9.2.2 allows reduction of the insulation thickness.
6.9.1.4
covers.
Superstructure windows and sidescuttles shall be of A-0 standard and shall be fitted with steel
6.9.1.5 Exits from superstructures and deckhouses to the open deck and leading to the spaces which
constitute an explosion hazard shall be provided with two gastight doors, spaced at least 1.5 m apart. The
outer doors shall be of self-closing type. The door sills shall be at least 300 mm high.
Air locks need not be arranged in compartments that are not adjacent to accommodation spaces
having exits to the open deck, provided that:
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Fire Protection
the compartments are permanently closed and are not used during the ship’s operation in the oil
spillage area;
.2 electrical equipment installed therein is of an explosion-proof type.
Also, air locks need not be provided at the exits from the navigation bridge to the open deck.
.1
6.9.1.6 Each opening in cargo tanks intended for the recovered oil shall be provided with gastight
closing appliances.
6.9.1.7 Decks and walls forming the boundaries of the enclosed spaces intended for the storage of the
loose gear used for collecting the spilled oil shall fulfil the requirements specified in Table 6.3.3-1 and
Table 6.3.3-2 relating to spaces of category (9).
6.9.1.8 Spaces intended for the storage of the loose gear used for collecting the spilled oil may serve as
cofferdams.
Subject to PRS’ consent, in ships of restricted service, cofferdams separating the machinery spaces of
category A from cargo tanks need not be installed, provided that a bulkhead constructed of uniform plate
ensuring access for inspections and hydraulic tests of the tanks during the ship's surveys is fitted.
6.9.2
Water Screen System
6.9.2.1 Ships shall be provided with the water screen system for drenching the exterior boundaries of
the superstructure in accordance with the applicable requirements specified in sub-chapter 3.4.
6.9.2.2 Application rate of the water screen system shall be at least 15 l/min per linear length of the
boundary.
Where the insulation of the exterior boundaries is not of A-60 Class, the application rate shall be at
least 30 l/min per linear length of the boundary.
6.9.2.3 Water screen system for drenching the exterior boundaries of the superstructure shall be
operated remotely from the navigating bridge.
6.9.3
Foam Fire-Extinguishing System
Ships shall be provided with a foam fire-extinguishing system in accordance with the requirements
specified in 3.5.4. The system shall be capable of delivering foam to the open deck and intended for the
protection of the recovered oil tanks, as well as of the enclosed spaces intended for the storage of the
loose gear for collecting the spilled oil.
6.9.4
Water Fire Main System
Water fire main system shall fulfil the following additional requirements:
.1 it shall be made as in tankers and fulfil the relevant requirements specified in 6.3.8;
.2 fire water pumps shall be supplied with water from bottom sea valves only. The side sea valve
shall be capable of being closed;
.3 fire pumps shall be remotely controlled from the navigation bridge.
6.9.5
Fire-Extinguishing Systems for Protection of Machinery Spaces
6.9.5.1 Fire-extinguishing systems intended for the protection of machinery spaces shall be remotely
controlled from the navigation bridge. Exits to the open deck from the fire-extinguishing stations protecting
these spaces need not be provided.
6.9.5.2 High-expansion foam fire-extinguishing system shall not be used for the protection of
machinery spaces.
6.9.6
System for Measure of Concentration of Flammable Gases
6.9.6.1 Fixed system for an automatic determining the concentration of flammable hydrocarbon gases
and vapours shall be provided. The system shall:
.1 operate continuously when the ship is in the area of oil spillage and during collecting the oil;
Additional Requirements
.2
.3
.4
.5
179
be composed of safe elements suitable for application in explosive atmosphere in accordance
with the relevant requirements specified in sub-chapter 22.5.4.2, Part VIII – Electrical
Installations and Control Systems;
be provided with the sampling arrangements or detectors made of materials resistant to the
marine atmosphere and hydrocarbon gases and vapours. The cross-section and length of the
sampling arrangement piping shall be such as to ensure the supply of the samples of air to the
analyser within not more than 1 minute;
be fitted with automatic change-over arrangements ensuring the successive control of the air
content in all places in which the sampling system or detectors have been installed. Intervals
between one changing over and the next one shall be such as to enable the sample to reach the
analyser;
give audible and visual signals in the following cases:
– exceeding by 30% the normal level of hydrocarbons concentration in the air, such signals being
simultaneously announced on the navigation bridge;
– interference in the supply of electric power to analyser;
– clogging the piping between the sampling arrangement and the analyser.
6.9.6.2 Sampling arrangements or detectors of the system for determining the concentration of
hydrocarbon gases or vapours shall be located as follows:
.1 in the vicinity of openings in the intake ventilation;
.2 in at least two positions on the open deck at a level not exceeding 1.0 m above the deck;
.3 in machinery spaces – in air locks;
.4 in cofferdams of cargo tanks.
6.10
Ro-Ro Passenger Ships – Mark: RO-RO/PASSENGER SHIP
The requirements specified in 6.10 apply to passenger ships provided with ro-ro spaces or special
category spaces and are supplementary to those specified in sub-chapters 6.1 and 6.2.
6.10.1
Escape Routes
6.10.1.1
General
6.10.1.1.1 Escape routes shall be provided from every normally occupied space/group of spaces on the
ship to an assembly station. These escape routes shall be so arranged as to provide the most direct route
possible to the assembly station, and shall be appropriately marked, see 6.1.6.10.5.
6.10.1.1.2 Escape route from cabins to stairway enclosures shall be as direct as possible, with a
minimum number of changes in direction. It shall not be necessary to cross from one side of the ship to
the other to reach an escape route. It shall not be necessary to climb more than two decks up or down in
order to reach an assembly station or open deck from any passenger space.
6.10.1.1.3
stations.
External routes shall be provided from open decks to the lifeboats or liferafts embarkation
6.10.1.1.4 Where enclosed spaces adjoin an open deck, openings from the enclosed space to the open
deck shall, where practicable, be capable of being used as an emergency exit.
6.10.1.1.5 Escape routes shall not be obstructed by furniture and other obstacles. With the exception of
tables and chairs, cabinets and other heavy furnishings in public spaces and along escape route shall be
secured in place to prevent shifting if the ship rolls or lists. Floor coverings shall also be secured in place.
6.10.1.2
Instructions for Safe Escape
6.10.1.2.1 Decks shall be sequentially numbered, starting with “1” at the tank top or the lowest deck.
The numbers shall be prominently displayed at stairs landings and lift lobbies. Decks may also be named,
but the deck number shall always be displayed with the name.
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Fire Protection
6.10.1.2.2 Simple plans showing the “YOU ARE HERE” position and escape routes marked by arrows
shall be prominently displayed on the inside of each cabin door and in public spaces. The plan shall show
the directions of escape, and shall be properly oriented in relation to its location on the ship.
6.10.1.3
Strength of Handrails and Corridors
6.10.1.3.1 Handrails or other handholds shall be provided in all corridors along the entire escape route
to the assembly and embarkation stations. Such handrails shall be provided on both sides of longitudinal
corridors of more than 1.8 m in width and transverse corridors of more than 1 m in width. Particular
attention shall be paid to the need to enable passengers to cross lobbies, atriums and other large open
spaces along escape routes. Handrails and other handholds shall be of such strength as to withstand a
uniformly distributed horizontal load of 750 N/m applied in the direction of the centre of the corridor or
space, and a uniformly distributed vertical load of 750 N/m applied in downward direction. The two
loads need not be applied simultaneously.
6.10.1.3.2 The lowest 0.5 m of bulkheads or other partitions forming vertical divisions along escape
routes shall be able to sustain a load of 750 N/m to allow them to be used as walking surfaces from the
side of the escape route with the ship at large angles of heel.
6.10.1.4
Evacuation Analysis
Escape routes shall be evaluated based on an evacuation analysis. The analysis shall identify and
eliminate, as far as practicable, congestion which may develop during an abandonment due to normal
movement of passengers and crew along escape routes, including the possibility that crew may need to
move along these routes in a direction opposite to the movement of passengers. In addition, the analysis
shall demonstrate that escape arrangements are sufficiently flexible to provide for the possibility that
certain escape routes, assembly stations, or embarkation stations may not be available as a result of a
casualty.
It is recommended that the analysis of escape proceedings be evaluated in accordance with the
guidelines contained in MSC/Circ. 1238.
6.10.1.5
Escape Routes from Special Category Spaces and Open Ro-ro Spaces
6.10.1.5.1 Escape routes from special category spaces and open ro-ro spaces, to which passengers have
access both below and above the bulkhead deck shall ensure safe access to the embarkation deck, at least
equivalent to the requirements specified in 6.1.6.10.1.1, 6.1.6.10.2, 6.1.6.10.4.1 and 6.1.6.10.4.2.
Such spaces shall be provided with designated walkways to the means of escape between secured
vehicles with a breadth of at least 0.6 m, and where practicable and reasonable those designated
longitudinal walkways shall raise at least 0.15 m above the deck surface. Parking arrangements for the
vehicles shall maintain the walkways clear at all times.
6.10.1.5.2 One of the escape routes from the machinery spaces in which the crew is normally
employed shall not have direct access to any special category space.
6.10.1.5.3 Hoistable drive-up/down ramps to vehicles platform decks must not be capable of blocking
the approved escape routes when in lowered position.
6.10.2
6.10.2.1
Fire Protection of Special Category Spaces and Ro-ro Spaces
General
6.10.2.1.1 As the ship division in special category spaces and ro-ro spaces into main vertical zones in
accordance with the requirements specified in 6.1.2 may be impracticable, fire protection of the ship shall
be ensured by the ship division into horizontal zones and fitting the spaces with a fixed fire-extinguishing
system.
A horizontal zone may include special category spaces on more than one deck, provided that the total
overall height (i.e. the sum of distances between deck and web frames of the decks forming one horizontal
zone) for vehicles does not exceed 10 m.
Additional Requirements
181
6.10.2.1.2 Decks and bulkheads forming the boundaries separating horizontal zones from each other
and from the remainder of the ship shall fulfil the relevant requirements specified in the Rules concerning
the ventilation systems, openings in A Class divisions and penetrations in A Class divisions for
maintaining the integrity of vertical zones.
6.10.2.2
Structure of Fire Divisions
6.10.2.2.1 In passenger ships carrying more than 36 passengers, the boundary bulkheads and decks of
special category spaces and ro-ro spaces shall be insulated to A-60 Class standard. However, where a
category (5), (9) or (10) space, as defined in 6.1.4 is on one side of the division, the fire integrity standard
may be reduced to A-0.
Where oil fuel tanks are below a special category space or ro-ro space, fire integrity of the deck
between such spaces may be reduced to A-0 standard.
6.10.2.2.2 Indicators shall be provided on the navigation bridge and they shall indicate when any fire
door leading to or from the special category spaces is closed.
6.10.2.2.3 Doors to special category spaces shall be of such construction that they cannot be kept open
permanently and shall be kept closed during the voyage.
6.10.2.3
Detection and Fire Alarm Signalling
6.10.2.3.1 Special category spaces, as well as ro-ro spaces shall be fitted with a fixed fire detection and
fire alarm system in accordance with the requirements specified in 6.2.2.1.1.
6.10.2.3.2 If an efficient fire control patrol system is maintained in special category spaces by a
continuous fire watch at all times during the voyage, a fixed fire detection and fire alarm system need not
be installed.
6.10.2.3.3 In special category spaces, manually operated call points shall be fitted and so spaced that
no part of the space is more than 20 m from a manually operated call point, and one shall be situated at
each exit from such spaces.
6.10.2.3.4 Smoke detector sections in vehicle, special category and ro-ro spaces may be provided with
an arrangement (e.g. a timer) for disconnecting detector sections during loading and unloading of
vehicles to avoid ‘false’ alarms. The time of disconnection shall be adapted to the time of
loading/unloading. The central unit shall indicate whether the detector sections are disconnected or not.
Manually operated call points, however, shall not be capable of being disconnected by the
arrangements referred to above.
6.10.2.4
Fixed Fire-Extinguishing Systems
6.10.2.4.1 Special category spaces shall be provided with one of the following fixed fire-extinguishing
systems:
.1 water-spraying fire-extinguishing system complying with the requirements specified in 3.4.2;
.2 equivalent high-pressure water based fire-extinguishing system, referred to in 3.4.3.
.3 high-expansion fire-extinguishing system in accordance with the requirements specified in 3.5.3.
6.10.2.4.2 Where fixed water-spraying system is provided, in view of the serious loss of stability
which could arise due to large quantities of water accumulating on the deck or decks during the operation
of the system, proper arrangements shall be made to drain the space in accordance with the requirements
specified in sub-chapter 6.12, Part VI – Machinery Installations and Refrigerating Plants.
6.10.2.4.3
Carbon dioxide systems shall not be used for the protection of special category spaces.
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Fire Protection
6.10.2.5
Position of Fire Hydrants
The requirements specified in 6.2.2.3 shall be fulfilled.
6.10.2.6
Ventilation System
The requirements specified in 6.2.2.4 shall be fulfilled.
6.10.2.7
Ignition Sources
The requirements specified in 6.2.2.5 shall be fulfilled.
6.10.2.8
Scuppers and Discharges
The requirements specified in 6.2.2.6 shall be fulfilled.
6.10.2.9
Permanent Openings
The requirements specified in 6.2.2.7 shall be fulfilled.
6.10.2.10
Portable Fire-Fighting Equipment
The requirements specified in 6.2.2.8 shall be fulfilled.
6.10.3
Fire Protection of Helicopter Operation Areas
6.10.3.1 Winching area, see the definition given in 7.1.2.3, required on all ro-ro passenger ships, shall
be fitted with portable fire-fighting equipment, as specified in 7.1.4.3, placed in the vicinity of this area.
6.10.3.2 Helicopter landing area, see the definition given in 7.1.2.2, required on ro-ro passenger ships
of 130 m in length or above, constructed in accordance with the guidelines given in MSC/Circ.895, shall
fulfil the requirements specified in sub-chapters 7.1.5 and 7.1.8.
6.11
Gas Tankers – Mark: LIQUEFIED GAS TANKER
Gas tankers shall fulfil the requirements of the IGC Code, as amended.
6.12
6.12.1
Chemical Tankers – Mark: CHEMICAL TANKER
Application
6.12.1.1 Chemical tankers intended for the carriage of flammable chemicals in bulk shall fulfil the
requirements of the IBC Code, as amended.
6.12.1.2 Chemical tankers engaged solely in the carriage of cargoes which are non-flammable (the
cargoes listed in Chapter 17 of the IBC Code , the entry NF in column i of the table of minimum
requirements) shall fulfil the requirements for cargo ships specified in Chapter 2, as well as for tankers
carrying cargoes with a flash-point exceeding 60°C; however, they need not be fitted with a fireextinguishing system to protect the cargo pump-room or with a fixed deck foam fire-extinguishing
system.
6.12.1.3 Chemical tankers engaged solely in the carriage of liquid products with a flash point of 60 °C
and above (entry ”Yes” in column i of the table of minimum requirements in Chapter 17 of the IBC Code)
shall fulfil the applicable requirements for tankers specified in sub-chapter 6.4 (they shall be fitted with a
fixed deck foam fire-extinguishing system for tankers in accordance with the requirements specified in subchapter 3.9).
Liquid cargoes with a flashpoint exceeding 60 ºC other than oil products or liquid cargoes subject to
the requirements of the IBC Code are considered to constitute a low fire risk, not requiring the protection
of a fixed deck foam extinguishing system.
Additional Requirements
183
6.12.1.4 Chemical tankers engaged in the carriage of products with a flash point not exceeding 60 °C
(entry ”No” in column i of the table of minimum requirements in Chapter 17 of the IBC Code) shall, in
respect of the structural fire protection and fire protection of the enclosed spaces, fulfil the requirements
for tankers specified in 6.3 (except 6.3.2.3) as well as the requirements specified in this sub-chapter.
6.12.2
Fire Protection of Cargo Pump-Room
6.12.2.1 In chemical tankers engaged in the carriage of products with a flash point not exceeding 60
°C (the cargoes listed in Chapter 17 of the IBC Code, entry ”No” in column i of the table of minimum
requirements), irrespective of their gross tonnage, the cargo pump-room shall be provided with a fixed
carbon dioxide fire-extinguishing system in accordance with the requirements specified in 6.3.5.1.1.1 or
an equivalent gas fire-extinguishing system.
The amount of carbon dioxide carried shall be sufficient to provide a quantity of free gas equal to
45% of the gross volume of the cargo pump-room in all cases.
6.12.2.2 If cargoes to be carried are not suited to extinguishment by carbon dioxide or an equivalent
gas fire-extinguishing system, the cargo pump-room shall be protected by a fire-extinguishing system
consisting of either a fixed pressure water-spraying system specified in 3.4.4 or high-expansion foam
system in accordance with the requirements specified in 3.5.3.
6.12.2.3 In chemical tankers of 500 gross tonnage and upwards engaged on international voyages and
engaged in the carriage of products with a flash point not exceeding 60 °C (entry ”No” in column i of the
table of minimum requirements in Chapter 17 of the IBC Code) cargo pump-rooms shall have:
.1 temperature monitoring system for pumps, driven by shaft passing through pump-room
bulkheads, such as: cargo pumps, slop pumps, ballast pumps, stripping pumps, tank cleaning
pumps (except small pumps of 1 m3/h capacity or less and bilge pumps). Sensing points shall be
provided on bulkhead shaft glands, bearings and pump casing. The setting point shall be about 60
– 80 oC. The sensing points shall be permanently fixed. When the set point is reached, a signal
shall be automatically effected in cargo central room or the pump control station;
.2 lighting interlocked with ventilation;
.3 a system for continuous monitoring of the concentration of hydrocarbon gases in accordance with
the guidelines given in MSC.1/Circ.1321, Part IV, Chapter. 3.2;
.4 bilge level monitoring devices 89,
in accordance with the requirements specified in sub-chapter 22.5.7, Part VIII – Electrical Installations
and Control Systems.
6.12.3
Fire Protection of Cargo Area
6.12.3.1 Chemical tankers engaged in the carriage of liquid products with a flash point not exceeding
60 °C (entry ”No” in column i of the table of minimum requirements in Chapter 17 of the IBC Code),
irrespective of their gross tonnage, shall be provided with a fixed deck foam fire-extinguishing system in
accordance with the requirements specified in 6.12.4.
6.12.3.2 Chemical tankers fitted with bow or stern loading and unloading arrangements shall be
provided with one additional foam monitor in accordance with the requirements specified in paragraph
6.12.4.8 and one additional applicator meeting the requirements specified in paragraph 6.12.4.11. The
additional monitor shall be so located as to protect the bow or stern loading and unloading arrangements.
The area of the cargo line forward or aft of the cargo area shall be protected by the above-mentioned
applicator.
6.12.3.3 In cargo area, portable fire-extinguishing equipment suitable for the products to be carried
shall be provided and kept in good operating order.
89
Bilge high-level alarms are acceptable as an alternative means for the level monitoring devices.
184
6.12.4
Fire Protection
Fixed Deck Foam System
6.12.4.1 Only one type of foam concentrate shall be supplied, and it shall be effective for the
maximum possible number of cargoes intended to be carried. For other cargoes for which foam is not
effective or is incompatible, additional arrangements to the satisfaction of PRS shall be provided.
Regular protein foam shall not be used.
6.12.4.2 For liquid cargoes with a flash-point not exceeding 60 ºC for which foam is not effective or is
incompatible, a type-approved alcohol-resistant foam concentrate shall be used in the deck foam
extinguishing system. The list of cargoes for which an alcohol-resistant foam concentrate shall be used is
contained in the IBC Code, (entry ”A” in column l of the table of minimum requirements in Chapter 17)
and MSC/Circ.553.
6.12.4.3
Foam concentrate shall comply with applicable requirements specified in subchapter 3.9.2.
6.12.4.4 The arrangements for providing foam shall be capable of delivering foam to the entire cargo
tanks deck area as well as into any cargo tank, the deck of which is assumed to be ruptured.
6.12.4.5 Deck foam system shall be capable of simple and rapid operation. The main control station
for the system shall be suitably located outside the cargo area, adjacent to the accommodation spaces and
readily accessible and operable in the event of fires in the areas protected.
6.12.4.6 The rate of supply of foam solution shall not be less than the greatest of the following:
.1 2 l/min per square metre of the cargo tanks deck area, where cargo tanks deck area means the
maximum breadth of the ship times the total longitudinal extent of the cargo tank spaces;
.2 20 l/min per square metre of the horizontal sectional area of the single tank having the largest
such area; or
.3 10 l/min per square metre of the area protected by the largest monitor, such area being entirely
forward of the monitor.
Lower application rates may be accepted based on performance tests.
6.12.4.7 Sufficient foam concentrate shall be supplied to ensure at least 30 min of foam generation
when using the highest of the solution rates specified in 6.12.4.6.
For chemical tankers fitted with inert gas systems, a quantity of foam concentrate sufficient for 20
min of foam generation may be accepted.
6.12.4.8 Foam from the fixed deck foam system shall be supplied by means of monitors and foam
applicators. At least 50% of the foam rate required in paragraph 6.12.4.6.1 or 6.12.4.6.2 shall be
delivered from each monitor. The capacity of any monitor shall be at least 10 l/min of foam solution per
square metre of deck area protected by that monitor, such area being entirely forward of the monitor.
Such capacity shall not be less than 1.250 l/min. For chemical tankers of less than 4,000 tonnes
deadweight, the minimum capacity of the monitor may be lesser subject to PRS’ consent in each
particular case.
6.12.4.9 The distance from the monitor to the farthest extremity of the protected area forward of that
monitor shall not be more than 75% of the monitor throw in still air conditions.
6.12.4.10 A monitor and hose connection for a foam applicator shall be situated both port and
starboard at the poop front or accommodation spaces facing the cargo area.
6.12.4.11 Foam applicators shall be provided for flexibility of action during fire-fighting operations
and
to
cover
areas
screened
from
the
monitors.
The
capacity
of any applicator shall not be less than 400 l/min and the applicator throw in still air conditions shall not
be less than 15 m.
Additional Requirements
185
The number of foam applicators provided shall not be less than four. The number and disposition of
foam main outlets shall be such that foam from at least two applicators can be directed to any part of the
cargo tanks deck area.
6.12.4.12 Valves shall be provided in the foam main, and in the fire main where this is an integral part
of the deck foam system, immediately forward of any monitor position to isolate damaged sections of
those mains.
6.12.4.13 Operation of a deck foam system at its required output shall enable the simultaneous use of
the minimum required number of jets of water at the required pressure from the fire main.
6.12.4.14 Means shall be provided for the crew to safely check the quantity of foam concentrate in the
tanks and taking the foam concentrate samples for the periodical checking of its quality. The minimum
level/required quantity of foam concentrate shall be marked on the tank.
6.12.5
Inert Gas System
6.12.5.1 Chemical tankers, irrespective of gross tonnage, engaged in the carriage of flammable
products (entry ”inert” in column h of the table of minimum requirements in Chapter 17 of the IBC
Code) shall be provided with inert gas system complying with the requirements contained in subchapter
3.10.
6.12.5.2 The requirements for inert gas system specified in subchapter 3.10 need not be applied to
chemical tankers constructed before 1 January 2016, including those constructed before 1 January 2012:
.1 when carrying flammable cargoes such as crude oil or petroleum products of flash point lower than
60oC, provided they comply with the requirements for inert gas systems on chemical tankers,
contained in Res. A.567(14), Corr.1, or
.2 when carrying flammable cargoes other than crude oil or petroleum products such as cargoes listed
in chapters 17 and 18 of the IBC Code, provided that the capacity of tanks used for their carriage
does not exceed 3,000 m3 and the individual nozzle capacities of tank washing machines do not
exceed 17.5 m3/h and the total combined throughput from the number of machines in use in a
cargo tank at any one time does not exceed 110 m3/h.
6.12.5.3 The procedures for operation of inert gas system on chemical tankers shall take into account
the below recommendations:
.1 t he inert gas system shall be so operated as to render and maintain the atmosphere of the cargo
tanks non-flammable, except when such tanks are required to be gas-free;
.2 for chemical tankers, the application of inert gas, may take place after the cargo tank has been
loaded, but before commencement of unloading and shall continue to be applied until that cargo
tank has been purged of all flammable vapours before gas-freeing. Only nitrogen is acceptable as
inert gas under this provision.
.3 if the oxygen content of the inert gas exceeds 5% by volume, immediate action shall be taken to
improve the gas quality. Unless the quality of the gas improves, all operations in those cargo tanks
to which inert gas is being supplied shall be suspended so as to avoid air being drawn into the
cargo tanks, the gas regulating valve, if fitted, shall be closed and the off-specification gas shall be
vented to atmosphere. 90
.4 in the event that the inert gas system is unable to meet the requirement in .1 and it has been
assessed that it is impractical to effect a repair, then cargo discharge and cleaning of those cargo
tanks requiring inerting shall only be resumed when suitable emergency procedures have been
followed, taking into account guidelines developed by IMO. 91
90
91
The requirement applies to chemical tankers constructed on or after 1 January 2016
Refer to the Clarification of inert gas system requirements under the Convention (MSC/Circ.485) and to the Revised
Guidelines for inert gas systems (MSC/Circ.353), as amended by MSC/Circ.387.
186
Fire Protection
6.12.6
Water Fire Main System
6.12.6.1 In chemical tanker, irrespective of its gross tonnage, water fire main system shall fulfil the
requirements for cargo ships of 2000 gross tonnage and upwards.
6.12.6.2
6.12.7
Aluminium alloys shall not be used for fire hose couplings and nozzles in open deck areas.
Fire Protection of Machinery Spaces
Chemical tankers, irrespective of their gross tonnage, shall fulfil the requirements for cargo ships of
2000 gross tonnage and upwards in respect of the fire protection of machinery spaces and fixed fireextinguishing systems used in such spaces specified in sub-chapter 2.5.
However, the requirements concerning local application water-based system installed in machinery
spaces of category A above 500 m3 in volume, given in 2.5.8, are applicable only where the chemical
tanker is of gross tonnage 2000 and upwards.
6.12.8
Application of Aluminium Coatings
Chemical tankers engaged in the carriage of products with a flash-point not exceeding 60 °C shall fulfil
the requirements concerning application of aluminium coatings for the hull and piping specified in 6.3.9.
6.12.9
Requirements for Paint Lockers and Store-Rooms for Flammable Liquids
6.12.9.1
Paint lockers and store-rooms for flammable liquids shall fulfil the requirements specified in 2.8.
6.12.9.2
Paint lockers, irrespective of their use, shall not be located above the cargo area.
6.12.10
Access to Spaces in Cargo Area
Access to forecastle spaces containing sources of ignition is permitted through doors facing the cargo
area provided that such doors are located outside explosion-hazardous zones as defined in IEC
Publication IEC 60092-502.
6.12.11
Crew Protective Clothing and Equipment
Chemical tankers, depending on the type of the carried cargo, shall be provided with suitable
protective clothing, breathing apparatus and safety equipment for the protection against noxious
chemicals, in accordance with the requirements of the IBC Code.
6.13
6.13.1
Fire Fighting Ships – Mark: FIRE FIGHTING SHIP . . .
Application
6.13.1.1 The requirements specified in sub-chapter 6.13 are applicable to fire fighting ships and ships
having special fire fighting capabilities, intended for fire fighting and rescue operations.
6.13.1.2 A ship which fulfils the applicable requirements concerning structure and equipment will be
assigned an additional mark FIRE FIGHTING SHIP and the appropriate notation: 1a or 1 or 2, or 3,
affixed to the symbol of class.
6.13.1.3 Notation 1a and 1 signifies that a ship is intended for an early stage of fire fighting and rescue
operations close to structure on fire.
6.13.1.4 Notation 2 or 3 signifies that a ship is intended for continuous large fires fighting operations,
carried out at a distance of structure on fire.
6.13.1.5 A ship, which, in addition to compliance with the requirements for 2 or 3 notation
assignment, is fitted with the water screen system for self-protection enabling to carry out fire fighting
and rescue operations close to structure on fire, will be assigned an additional mark FIRE FIGHTING
SHIP 2 and 1 or FIRE FIGHTING SHIP 3 and 1, respectively.
Additional Requirements
6.13.1.6
6.13.2
187
Detailed requirements concerning particular notations are specified in sub-chapter 6.13.3.
General Requirements
6.13.2.1 In ships with 1a or 1 notation, all exterior boundaries, such as: bulkheads, decks and the hull
above design summer waterline shall be constructed of steel and shall be protected by the water screen
system.
The application rate of the water screen system may be reduced in accordance with the requirements
specified in paragraph 6.13.6.3.
6.13.2.2 In ships with 2 or 3 notation, all exterior boundaries of the hull above design summer
waterline shall be A-0 steel structures or shall be constructed of an equivalent material, but they do not
need be protected by the water screen system.
6.13.2.3 In ships with 2 or 3 notation which are not provided with the water screen system, all
windows and port lights, except those on the navigation bridge, shall be of A-0 Class standard and shall
be fitted with steel covers.
6.13.2.4 Decks and platforms on which fire fighting monitors are situated, as well as the monitors
foundations shall be so designed as to sustain loadings from the water jet reactions, with the monitors
operating at the maximum output in the direction most unfavourable to the stability of the ship.
6.13.2.5 Ships shall have adequate stability for all modes of fire fighting operations with all water and
foam monitors in operation in the direction most unfavourable to the stability of the ship (operation in
horizontal plane, at the maximum output in the direction towards one side and the minimum oil fuel and
water capacity).
6.13.2.6 Ships shall have adequate manoeuvrability to enable it to keep position during fire-fighting
and rescue operations.
6.13.2.7 Ships lighting shall be such as to facilitate fire-fighting and rescue operations at night.
Two searchlights shall be provided on board, capable of giving an effective horizontal and vertical
range of coverage and an illumination to a distance of 250 m in clear air at a minimum level of
illumination of 50 lux within an area not less than 11 m in diameter.
6.13.2.8 Ships shall be provided with oil fuel storage tanks ensuring the ship propulsion and fireextinguishing equipment operation during fire fighting operations depending on the additional notation
affixed to the symbol of class in accordance with the Table 6.13.3, item 11.
6.13.2.9 Classification documentation, in addition to that required in 1.4.1, shall contain:
.1 specification containing data on all functions of the ship, i.e. fire-fighting and rescue operations,
fire-extinguishing systems operation, including the data on fire-fighting appliances and
equipment;
.2 calculations of the ship stability for all operation modes of water and foam monitors with
monitors operating in the direction most unfavourable to the ship stability;
.3 calculations of water and foam monitors supports at the most unfavourable mode of operation;
.4 calculations of: fire-extinguishing system with water monitors, fire-extinguishing system with
foam monitors and water screen system;
.5 plan showing the arrangement and securing of fire fighting appliances and equipment (pumps,
water and foam monitors, foam concentrate containers, fire hoses manifolds);
.6 plan of fire control room, where provided;
.7 plans and diagrams of fire-extinguishing systems: fire-extinguishing system with water monitors,
fire-extinguishing system with foam monitors and the water screen system;
.8 arrangement plan of fire-fighting equipment and fire-fighter’s outfit;
.9 water and foam monitors remote control plan;
.10 plan of the electric lighting arrangement and supply;
188
Fire Protection
.11 plan of the compressed air system for charging the bottles of breathing apparatus;
.12 arrangement plan showing sea chests for fire pumps.
6.13.2.10 Ships and fire-extinguishing systems are subject to the following tests:
.1 test of the ship manoeuvrability and keeping its position during the operation of all monitors in
fire fighting simulation conditions;
.2 measurement of the ship angle of list during operation of all water and foam monitors directed to
one side;
.3 operation test of water pumps at maximum output (pressure, capacity);
.4 operation test of water and foam monitors at maximum output;
.5 measurement of horizontal and vertical range of water and foam monitors;
.6 checking the operation and the measurement of the water screen system capacity;
.7 operation test of ship lighting at night; checking the searchlights reflectors operation.
6.13.2.11 Fire water pumps and their prime movers, as well as air compressors for charging the
cylinders of the breathing apparatus shall have a Test Certificate.
6.13.2.12 The following fire-fighting appliances and equipment shall have a Type Approval
Certificate.
.1 water and foam monitors;
.2 foam concentrate;
.3 foam concentrate proportioners and high-expansion foam generators;
.4 fire hydrants, nozzles and fire hoses;
.5 water screen spraying nozzles;
.6 fire-fighter’s outfit;
.7 portable high-expansion foam generators;
.8 searchlight reflectors.
6.13.2.13 Operation manual containing the following information shall be available on board:
.1 instructions for the ship operation during all modes of fire fighting and rescue operations;
.2 diagrams and operation description of all fire-extinguishing systems;
.3 instructions for use, periodical testing and maintenance of all fire-extinguishing systems and
appliances.
6.13.3
Required Equipment
Depending on the additional notation affixed to the symbol of class, the ship shall fulfil the relevant
requirements specified in Table 6.13.3.
189
Additional Requirements
Table 6.13.3
Minimum requirements for fire fighting ship equipment
Item
1
Requirement
2
Notation affixed to the symbol of class
1a
1
2
3
4
5
3
6
2÷4
2
3 or 4
4
90÷300
1200
2400 or 1800
2400
1
Number of water monitors
2
Water monitor capacity [m3/h]
3
Number of water pumps
1÷2
1÷2
2÷4
2÷4
4
Total capacity of water pumps [m3/h]
600
2400
7200
9600
5
Number of foam monitors
2÷4
–
–
2
6
Foam monitor capacity [m3/h]
40
–
–
300
7
Horizontal range of water monitor 1) [m]
–
120
150
150
8
Vertical range of water monitor 2) [m]
–
50
70
70
9
Vertical range of foam monitor 3) [m]
–
–
–
50
10
Water screen system for ship self
protection
+5)
+5)
–
–
11
Oil fuel capacity sufficient for fire fighting
operations, for a given time 4) [h]
Number of hose connections at each side
of ship
–
24
96
96
–
4
8
8
Number of fire-fighter’s outfits
Portable high-expansion foam generator
–
–
4
–
8
1
8
1
12
13
14
Notes:
1)
Length of monitor throw measured horizontally from the monitor outlet to the mean impact area.
2)
Height of throw measured vertically from the sea level to mean impact area at a horizontal distance of at least 70 m from the
nearest part of the ship.
3)
Height of foam monitor throw measured vertically from the sea level during two monitors simultaneous operation, at
maximum output capacity.
4)
Total oil fuel capacity on board shall be such as to ensure the propulsion operation and continuous operation of all monitors,
at maximum output for a specified time.
5)
Water screen system to be provided; for detailed requirements – see 6.13.6.
6.13.4
Water Monitor Fire-Extinguishing System (for External Objects)
6.13.4.1 The number and capacity of water monitors and pumps, depending on additional notation
affixed to the symbol of class, shall be in accordance with Table 6.13.3.
6.13.4.2 Water monitors shall be so arranged forward or aft as to ensure their most effective operation.
The monitors shall be so positioned that they will have a free line for the water jet over the horizontal area
covered. The monitors shall be capable of adequate adjustment in the vertical and horizontal direction; the
required range and height of trajectory shall be achieved with all monitors operating simultaneously.
6.13.4.3 Water monitors shall give solid jets of water. In ships with 2 and 3 notations, at least two
monitors shall be capable of giving dispersed water jet.
6.13.4.4 Monitor position blocking arrangements shall be provided to prevent water jets from
impinging on the ship’ structure or equipment.
6.13.4.5 Monitors shall be capable of being operated both locally and at the remote control station.
The remote control station shall have adequate overall operational visibility, means of communication
and fire protection.
The remote control station shall be fitted with water pumps control buttons, pressure gauges and shutoff control valves.
6.13.4.6
Valve control shall be so designed as to avoid water hammer.
190
Fire Protection
6.13.4.7 Monitor remote control system shall be properly protected against external damage. Electrical
control system shall be provided with overload and short-circuit protection. Where a hydraulic or
pneumatic monitor control system is applied, the control power units shall be duplicated. Control
equipment shall be clearly marked.
6.13.4.8 Water monitor pumps may be used for the supply of the screen water system and foam
monitor fire-extinguishing system. In those cases, the capacity of the pumps shall be adequately
increased and shut-off valves enabling disconnection of the water supply to the systems shall be
provided.
6.13.4.9 Fire pumps shall be supplied from an independent sea water suction valve, which shall not be
used for any other purposes. Sea chest shall be arranged as low as practicable to avoid clogging due to
debris or ice. The location of sea chest shall be such that the water suction will be possible in any ship
operation conditions. Due regard shall be paid to the ship’s motions on wave and water flow from
propellers or thrusters.
6.13.4.10 All sea chests shall be provided with strainer plates at the ship’s shell plating. The strainer
plates shall have a clear area of at least twice that of the sea valves. Low pressure steam or compressed
air shall be provided for cleaning the strainer plates.
6.13.4.11
Sea valves shall be operable from fire pump control position.
6.13.4.12 Sea valves with nominal diameter exceeding 450 mm shall be power-controlled and
manually-controlled.
6.13.4.13 Spaces where fire pumps and their prime movers are located shall be considered as
machinery spaces in respect of fire protection.
6.13.4.14
Piping system shall be protected against overpressure.
6.13.4.15 All piping shall be made of steel and shall be protected both internally and externally
against corrosion by hot galvanizing.
6.13.4.16
Drain plugs for water drainage shall be installed in the lowest section of the piping.
6.13.4.17 The piping system shall be protected against operation of the pumps when water inlet valves
are closed or shall be provided with alarms indicating such operation status of the pumps.
6.13.4.18 The piping system shall have arrangements to avoid overheating of the pumps at low
delivery application rates.
6.13.4.19 Suction lines shall be as short and straight as practicable. The water velocity in the suction
lines shall not exceed 2 m/s.; the water velocity in piping between pumps and water monitors shall not
exceed 3.5 m/s.
6.13.5
Foam Monitor Fire-Extinguishing System (for Protection
of External Objects)
6.13.5.1 The number and capacity of foam monitors and the monitors operation characteristics shall be
in accordance with Table 6.13.3. The low-expansion foam ratio of the monitors shall be 12 to 1.
6.13.5.2 Foam monitor system shall consist of foam concentrate container, foam mixing unit and
pipelines to the foam monitors.
6.13.5.3 The foam concentrate container shall have capacity sufficient for at least 30 minutes of foam
generation by all monitors.
Additional Requirements
191
6.13.5.4 Means shall be provided for the crew to safely check the quantity of foam concentrate in the
tanks and taking the foam concentrate samples for the periodical checking of its quality. The minimum
level/required quantity of foam concentrate shall be marked on the tank.
6.13.5.5 Water supply to the foam monitor system may be taken from water monitor system pumps
after appropriately reducing the supply water pressure.
6.13.5.6 Foam monitors shall have both local and remote control. The remote control of the foam
monitors shall be located at the remote control station for the water monitors. The remote control shall
include water pumps operation and water and foam concentrate valves control.
6.13.5.7
6.13.6
Monitor remote control system shall fulfil the requirements specified in paragraph 6.13.4.7.
Water Screen System
6.13.6.1 Water screen system shall provide protection to all external vertical areas of the hull,
superstructures and deckhouses, including water and foam monitor foundations and equipment, as well
as the surface of the deck above machinery spaces or other spaces in which combustible materials are
located. During water screen system operation, proper visibility from the navigation bridge and from fire
control room shall be provided.
6.13.6.2 Water screen system shall be provided with sea water pump or may be served by water
monitor system pump, provided the pump capacity is increased by the capacity required for the water
screen system.
6.13.6.3 Capacity of the water screen system shall be at least 5 l/min/m2 for A-60 Class boundaries
and 10 l/min/m2 for the remaining boundaries and decks.
6.13.6.4 Water screen system shall be divided into sections so that it will be possible to close down
manually or remotely sections covering boundaries which are not exposed to fire.
6.13.6.5 Pump capacity shall be sufficient to supply simultaneously, at the required pressure, all
nozzles of the sections which protect the largest area exposed to fire and high temperature.
6.13.6.6 Arrangement of the nozzles shall be such as to give an even distribution of water spray over
the protected area, as well as to preclude damage thereto during fire fighting operations.
6.13.6.7 Piping shall be made from steel and be protected against corrosion externally and internally
by hot galvanizing or shall be made from other corrosion and heat resistant metal alloys. Drain plugs for
water drainage shall be installed in the lowest sections of the pipes.
6.13.6.8 Decks shall be provided with scuppers for water draining during water screen system
operation.
6.13.7
Fire Hose Stations (for Protection of External Objects)
6.13.7.1 Ship shall be provided with fire hose stations for fire fighting on external objects. The number
of fire hose connections, in a fire hose station, on each side of the ship shall be in accordance with Table
6.13.3.
6.13.7.2 At least half of the required number of fire hose connections shall be located on the open deck
on both sides.
6.13.7.3
Nominal diameter of fire hoses shall be not less than 38 mm and not more than 65 mm.
6.13.7.4 Nozzles shall be of universal type, i.e. they shall give solid or dispersed water jet and shall
ensure a water jet throw not less than 12 m.
192
Fire Protection
6.13.7.5 Where a fire hose station is supplied from the water monitor system, provision shall be made
to reduce the water pressure at the hydrants to an amount at which each fire hose nozzle can be safely
handled by one man.
6.13.8
Fire-Fighter’s Outfit
6.13.8.1 Fire-fighter’s outfit shall consist of personal equipment and breathing apparatus, with two
spare air bottles. Fire-fighter’s outfit shall fulfil the requirements specified 5.1.4. The number of firefighter’s outfits for fire fighting operations, depending on notation affixed to the symbol of class, shall be
in accordance with Table 6.13.3.
6.13.8.2 Fire-fighter’s outfits shall be stored in at least 2 rooms, one of which shall be accessible from
the open deck. The entrance to the room shall be clearly marked. The room shall be provided with
ventilation and heating arrangements.
6.13.8.3 The arrangement of the room shall enable easy access to the whole stored outfit. Protective
clothing and other outfits shall be stored in suspended position.
6.13.8.4 An air compressor capable of recharging the air bottles used in breathing apparatus, having
the capacity of at least 75 l/min, shall be provided. The inlet to the compressor shall be fitted with
appropriate filters. The air compressor may be located in the fire-fighter’s outfit room or in a separate
space, located in a safe place.
6.13.9
Portable High-Expansion Foam Generator (for Protection
of External Objects)
6.13.9.1 Capacity of high-expansion foam generator intended for fire fighting operations on external
objects, required on ships with additional class 2 or 3 notation affixed to the symbol of class shall not be
less than 100 m3/min.
6.13.9.2 Foam concentrate shall be stored in portable tanks. The total storing foam concentrate capacity
shall be sufficient for at least 30 minutes of foam generation.
6.14
High Speed Craft – Mark: HSC
In respect of fire protection, high speed craft shall fulfil the requirements of the PRS Rules for the
Classification and Construction of High-Speed Craft (HSC Rules), Part V, as amended.
6.15
6.15.1
Ships with Ice Class – Marks: L1A, L1, L2, L3 and L4
General Requirements
Components of fire-fighting systems and other fire protection equipment which may be exposed to
icing which could interfere with the proper functioning of that component shall be protected adequately.
6.15.2
Means of Escape
External stairways, ladders and landings on the escape routes from accommodation and service spaces
to assembly stations and life saving equipment exposed to sub-zero temperatures shall be so arranged and
protected that they are not made inaccessible or inoperable by ice or snow accumulation.
6.15.3
Water Fire-Extinguishing Systems
6.15.3.1 On ships with ice class notation, at least one of the water fire main system pumps and pumps
serving other water fire-extinguishing systems, required in the present Part of the Rules, shall be
connected to a sea chest which is provided with de-icing arrangements, complying with the requirements
specified in 22.2.11, Part VI – Machinery Installations and Refrigerating Plants.
Additional Requirements
193
6.15.3.2 Where a fixed fire-extinguishing system or alternative fire-extinguishing system situated in a
space separate from the compartment containing the main fire pumps utilizes its own independent sea chest,
this sea chest should be capable of being cleared of accumulations of slush ice, by steam or compressed air.
6.15.3.3 Fire pumps including an emergency fire pump shall be installed in heated compartments and
in any event shall be adequately protected from freezing for minimum temperature for the intended
voyage.
6.15.3.4 Open deck isolating valves of water fire main system shall be so located that they are
accessible. Any isolating valves located in exposed positions shall not be subjected to icing from freezing
spray.
6.15.3.5 In the case of systems which need not be permanently pressurized, the fire main shall be so
arranged that external sections subjected to freezing can be isolated and draining devices shall be
provided. The system control shall be fitted with a plate informing of the necessity to drain the pipes any
time the system has been used.
6.15.3.6 In the case of systems required to be permanently pressurized, the pipes shall be led in heated
compartments. The pipes led on the open deck or in compartments with minus temperatures shall be
adequately protected against freezing.
6.15.3.7 Hydrants positioned on open decks shall be installed in boxes to protect them against being
flooded and freezing. Each hydrant shall be equipped with an efficient two-handed valve handle.
6.15.4
Fixed Gas Fire-Extinguishing Systems
6.15.4.1 Fixed gas fire-extinguishing systems shall be so designed and located that they are not made
inaccessible or inoperable by ice or snow accumulation or low temperature.
Closing arrangements for openings of the spaces protected by gas fire-extinguishing systems which
may be subjected to low temperatures and freezing shall be protected adequately.
6.15.4.2 Stations containing fire-extinguishing medium shall be located in adequately heated
compartments and the access facing an open deck shall be so shielded that the door will not be made
inoperable due to freezing or snow accumulation.
6.15.4.3 Precautions shall be taken to prevent fire-extinguishing medium pipings, isolating valves and
nozzles of any fire-extinguishing system located in spaces to be subject to negative temperatures from
becoming clogged by ice build up or freezing.
6.15.4.4 External terminals of relief valves and safety valves of the fire-extinguishing medium piping
and tanks shall be adequately protected from becoming clogged due to freezing or snow accumulation.
6.15.5
Fire-Fighting Equipment
Foam fire-extinguishers shall not be located in any positions that are exposed to freezing
temperatures.
6.16
6.16.1
Ships with Unattended Machinery Space and with One Person
on Watch – Mark: AUT and NAV 1
Water Fire Main System
On ships with unattended machinery space or when only one person is required on watch, there shall
be immediate water delivery from the fire main system at a suitable pressure, either by remote starting of
one of fire pumps from the navigation bridge and fire control station, if any, or permanent pressurisation
of the fire main system by one of the main fire pumps.
On cargo ships of less than 1600 gross tonnage, the remote starting of the pump need not be provided
if the fire pump start button in the machinery space is in an easily accessible position.
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Fire Protection
6.16.2
Fire Detection and Alarm System in Machinery Spaces
6.16.2.1 Machinery spaces of category A shall be provided with fire detection and fire alarm system
complying with the applicable requirements specified in 4.1 and in the present sub-chapter.
6.16.2.2 Fire control panel shall be located on the navigating bridge, in fire control station or other
accessible place where a fire in the machinery space will not render it inoperative.
6.16.2.3 Fire control panel shall indicate the place of the detected fire in accordance with the arranged
fire zones by means of a visual signal. Audible signals clearly distinguishable in character from any other
audible signals shall be audible throughout the navigating bridge and the accommodation area of the
personnel responsible for the operation of the machinery space.
6.16.2.4 Fire detectors shall be of types, and so located as to rapidly detect the onset of fire in conditions
normally present in the machinery space and at variations of ventilation as required by the possible range of
ambient temperature. Consideration shall be given to avoiding false alarms. Combination of detector types
shall be applied to enable the system to react to more than one type of fire symptom.
One type of fire detectors shall react to flame. Such detectors shall be located in way of internal
combustion engines, boiler firing and other places subject to open fire. The type and positioning of fire
detectors is subject to PRS’ approval in each particular case.
6.16.2.5 Fire detector zones shall be arranged in a manner that will enable the operating staff to locate
the seat of the fire. Air currents created by the machinery shall not render the detection system
ineffective. The arrangement and number of loops, as well as location of detector heads is subject to
PRS’ approval in each particular case.
6.16.2.6 Where fire detectors are provided with the means to adjust their sensitivity, necessary
arrangements shall be ensured to fix and identify the set point.
6.16.2.7 Where it is intended that a particular loop or detector may be temporarily switched off, this
state shall be clearly indicated. Reactivation of the loop or detector shall be performed automatically after
a present time.
6.16.2.8 Manually operated control points shall be located in the following places:
– passageways having entrances to machinery spaces of category A;
– control station in the machinery space.
6.16.2.9 After the fire detection and alarm system has been installed on board the ship, operation tests
shall be performed in various operating conditions of ventilation and machinery installations in
accordance with the test programme approved by PRS.
6.16.2.10 With regard to power supply, safety devices, selection and routing of cables, fire detection
and alarm system shall fulfil the requirements specified in sub-chapter 7.5, Part VIII – Electrical
Installations and Control Systems.
6.16.3
Fire-Extinguishing Systems in Machinery Spaces
6.16.3.1
In spaces containing steam turbines or enclosed steam engines used for main propulsion or
other purposes having in the aggregate a total output of not less than 375 kW, one of the fixed total
flooding fire-extinguishing systems, referred to in 2.5.1.1, shall be provided.
6.16.3.2
Fixed local application water-based fire-extinguishing system, required in 2.5.8, shall be
operated automatically. The requirements for automatic operation are specified in Publication No. 89/P.
6.16.4
Portable Fire-Extinguishers
One portable fire-extinguisher shall be provided at each entrance to machinery spaces of category A.
Additional Requirements
6.16.5
195
Early Detection of Fire in Machinery Spaces
6.16.5.1 Means shall be provided to detect and give alarms at an early stage in case of fires:
.1 in boiler air supply casings and exhausts (uptakes); and
.2 in scavenging air belts of propulsion machinery,
unless PRS deems this to be unnecessary.
6.16.5.2 Internal combustion engines of 2,250 kW and above or having cylinders of more than 300
mm bore shall be provided with crankcase oil mist detectors or engine bearing temperature monitors or
equivalent devices.
6.17
Restricted Service Ships – Marks: I, II and III
6.17.1 In cargo spaces of passenger ships, a fixed gas fire-extinguishing system required in 6.1.12.1
need not be provided if the ship is fitted with steel hatch covers and effective means of closing all
ventilators and other openings leading to the cargo spaces.
6.17.2 In cargo spaces of passenger ships, fire detection and fire alarm system, required in 6.1.12.3,
need not be applied.
6.18
Ships Carrying Vehicles with Fuel in their Own Tanks – Mark: PET
Cargo ships shall fulfil the requirements for the protection of ro-ro spaces and vehicles spaces,
specified in 6.2.2, whereas passenger ships – the requirements for fire protection of special category
spaces and ro-ro spaces specified in 6.10.2.
6.19
Ships Provided with Inert Gas System – Mark: ING
Inert gas system installed on board the ship assigned the additional mark ING shall fulfil the
requirements specified in sub-chapter 3.10.
6.20
Passenger Ships Engaged on Domestic Voyages – Mark: Class B,
Class C or Class D
The requirements specified in the present sub-chapter apply to passenger ships engaged on domestic
voyages and are supplementary to the requirements specified in sub-chapters 6.1 and 6.10.
These requirements also apply to ships of less than 24 metres in length.
6.20.1
6.20.1.1
Water Fire Main System
Ships with Length of 24 Metres and Above
6.20.1.1.1 The number of fire pumps and the pressure in the system shall be as follows:
.1 in ships carrying not more than 500 passengers:
– minimum number of pumps – not less than two, one of which may be a main engine-driven
pump;
– minimum pressure maintained at all hydrants – not less than 0.3 MPa (only for ships with
Class B mark).
.2 in ships carrying more than 500 passengers:
– minimum number of pumps – not less than three, one of which may be a main engine-driven
pump;
– minimum pressure maintained at all hydrants – not less than 0.4 MPa (only for ships with
Class B mark).
In ships carrying more than 250 passengers, the arrangement of sea connections, fire pumps and their
sources of power shall be such as to ensure that, in the event of fire in any one compartment, all the fire
pumps will not be put out of action.
If this requirement cannot be fulfilled, an emergency fire pump in accordance with the requirements
specified in 3.2.4 shall be provided.
196
Fire Protection
In ships carrying more than 250 passengers, the arrangements for the ready availability of water
supply shall be such that at least one effective jet of water is immediately available from any hydrant in
an interior location and so as to ensure the continuation of the output of water by the automatic starting
of a required fire pump.
6.20.1.2
Ships of Less than 24 Metres in Length with Class C or Class D Additional Notation
6.20.1.2.1 One independent fire pump is required, which shall be capable of delivering for fire-fighting
purposes at least one jet of water from any fire hydrant, at the pressure specified below. The quantity of
water so delivered shall not be less than two thirds of the quantity required to be dealt with by the bilge
pumps when employed for bilge pumping.
Such fire pump shall be capable, when discharging the maximum amount referred to above through
fire hydrants with nozzles of 12 or 16 or 19 mm, of maintaining at any hydrant minimum pressure of 0.3
MPa.
6.20.1.2.2 Every ship carrying over 250 passengers shall be provided with an additional fire pump which
shall be permanently connected to the fire main. Such a pump shall be powered independently. Such a pump
and its source of power shall not be situated in the same compartment as the pump required in accordance
with 6.20.1.2.1 and shall be provided with a permanent sea connection situated outside the machinery space.
Such pump shall be capable of delivering at least one jet of water from any fire hydrants provided in the ship
maintaining a pressure of at least 0.3 MPa.
6.20.1.2.3 In ships with a periodically unattended machinery space or when only one person is required on
watch, there shall be immediate water delivery from the fire main system at a suitable pressure, either by
remote starting of one of the main fire pumps with remote starting from the navigating bridge and fire control
station, if any, or by automatic start of the pump on the pressure drop in the system..
6.20.2
6.20.2.1
Protection of Machinery Spaces
Ships with Length of 24 Metres and Above
6.20.2.1.1 Machinery spaces of category A above 500 m3 in volume (irrespective of the ship’s gross
tonnage), shall, in addition to the fixed fire-extinguishing system required in 2.5.1.1, be protected by a
type-approved local application water-based water-based system or equivalent fire-fighting system, of
approved type, complying with the requirements specified in 3.4.6.
6.20.2.1.2 In ships carrying more than 400 passengers, machinery spaces of category A (irrespective of
the machinery space volume), shall, in addition to the fixed fire-extinguishing system required in subchapter 2.5.1.1, be protected by a type-approved local application water-based system or equivalent firefighting system, of approved type, complying with the requirements specified in 3.4.6.
6.20.2.1.3 In ships of 40 metres in length and above, within the machinery spaces, emergency escape
breathing devices in accordance with the requirements specified in 5.1.5 shall be situated ready for use at
easily visible places, which can be reached quickly and easily at any time in the event of fire. The
location of emergency escape breathing devices shall take account of the layout of the machinery space
and the number of persons normally working in the space.
6.20.2.1.4 The number and location of emergency escape breathing devices shall be indicated on the
Fire Control Plan required in 6.20.5.1.
6.20.2.2
Ships of Less than 24 metres in Length with Class B, Class C or Class D Additional
Notation
Machinery space of category A shall be fitted with:
.1 a fixed total flooding fire-extinguishing systems (e.g. carbon dioxide) complying with the
requirements specified in 3.6 or an equivalent gas fire-extinguishing system;
Additional Requirements
.2
.3
197
one mobile foam fire extinguisher of at least 45 l capacity or one carbon dioxide extinguisher of
at least 16 kg capacity provided in any space containing internal combustion engines, oil settling
tanks or oil fuel units. The fire extinguisher may be positioned outside the machinery space at the
entrance;
9 l foam fire extinguishers or equivalent – one extinguisher per each 736 kW, or part thereof, of the
combined output of such machinery; it is required that not fewer than two but not more than six such
extinguishers shall be provided in any such space. The use of low-expansion foam fire-extinguishing
system in lieu of the fire extinguishers is permitted.
6.20.3
Automatic Sprinkler System
For ships with additional notation Class C or Class D of less than 40 metres in length with a total
protected area of less than 280 m2, PRS may accept other area for sizing of pumps and alternative supply
components than those required in 3.3.4.2.
6.20.4
Fire-Fighter’s Outfit
6.20.4.1 In ships of 40 metres in length and above, at least two fire-fighter’s outfits in accordance with
the requirements specified in 5.1.4 shall be provided.
6.20.4.2 In ships of 60 metres in length and above, if the aggregate of the lengths of all passenger spaces
and service spaces on the deck which carries such spaces is more than 80 metres or, if there is more than
one such deck, on the deck which has the largest aggregate of such lengths, at least two fire-fighter’s outfits
and at least two sets of personal equipment for every 80 metres, or part thereof, of such aggregate of lengths
shall be additionally provided.
In ships carrying more than 36 passengers, two additional fire-fighter’s outfits shall be provided for
each main vertical zone, except for stairway enclosures which constitute individual main vertical zones
and for main vertical zones of limited length in the fore and aft end of a ship which do not include
machinery spaces or main galleys.
6.20.4.3 In ships of 40 metres in length and above, but less than 60 metres, at least two fire-fighter’s
outfits shall be provided.
6.20.4.4 In ships with additional notation Class B of less than 40 metres in length, at least two firefighter’s outfits shall be provided, but with only one spare air-charge for self-contained breathing
apparatus.
6.20.4.5 If – taking account of the ship service restrictions – PRS deems it unreasonable or
impracticable to place a fire-fighter’s outfit on board, the ship may be exempt from the requirements to
carry one or more such outfits.
6.20.5
6.20.5.1
in 1.4.2.
Operation Documentation
Ships shall be provided with the Fire Control Plan complying with the requirements specified
6.20.5.2 Ships shall be provided with the Fire Protection Systems and Appliances Maintenance Plan
complying with the requirements specified in 1.4.3.2, as well as the Fire Training Manual complying
with the requirements specified in 1.4.3.3.
6.20.5.3 In ships carrying cargo, to provide information and instruction for proper ship and cargo handling
operations in relation to fire safety, Fire Safety Operational Booklet complying with the relevant requirements
specified in 1.4.3.4 shall be carried.
6.20.6
Ship Structure, Main Vertical and Horizontal Zones,
as well as Bulkheads within these Zones
6.20.6.1 The hull, superstructure, structural bulkheads, decks and deckhouses shall be constructed of
steel or steel equivalent material.
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Fire Protection
6.20.6.2 In ships carrying more than 36 passengers, the hull, superstructure and deckhouses shall be
subdivided into main vertical zones by A-60 Class divisions.
Steps and recesses shall be kept to a minimum, but where they are necessary, they shall also be A-60
Class divisions.
Where an open deck space, a sanitary or similar space or a tank including a fuel oil tank, void space
or auxiliary machinery space having little or no fire risk, is on one side or where fuel oil tanks are on
both sides of the division, the standard may be reduced to A-0.
6.20.6.3 In ships carrying not more than 36 passengers, the hull, superstructure and deckhouses in way
of accommodation and service spaces shall be subdivided into main vertical zones by A Class divisions.
These divisions shall have insulation values in accordance with Table 6.1.5-1.
6.20.6.4 In ships carrying more than 36 passengers, main fire zones divisions shall fulfil the
requirements specified in 6.1.2.2 to 6.1.2.6.
6.20.6.5 In ships carrying more than 36 passengers, fire integrity of vertical and horizontal divisions
within main fire zones shall fulfil the requirements specified 6.1.4.
6.20.6.6 In ships carrying not more than 36 passengers, fire integrity of vertical and horizontal
divisions within main fire zones shall fulfil the requirements specified 6.1.5.
6.20.7
Means of Escape
6.20.7.1 The requirements specified in 6.1.6 shall be fulfilled, except for the requirement set forth in
6.1.6.9 regarding the development of the Means of Escape Plan for the ship.
6.20.7.2 In ships of 40 metres in length and above, at least two emergency escape breathing devices in
accordance with the requirements specified in 5.1.5 shall be provided in each main vertical zone.
6.20.7.3 In ships carrying more than 36 passengers, two emergency escape breathing devices, in
addition to those required in 6.20.7.2, shall be provided in each main vertical zone
6.20.7.4 The requirements specified in 6.20.7.2 and 6.20.7.3 do not apply to stairway enclosures which
constitute individual main vertical zones or the main vertical zones in the fore or aft end of a ship, which
do not contain spaces of categories (6), (7), (8) or (12) defined in 6.1.4.
6.20.7.5 In ships of less than 24 metres in length, the requirement concerning one of the means of
escape from the machinery spaces may be waived having regard to the width and arrangement of the
upper part of such space.
6.20.8
Means of Escape on Ro-ro Passenger Ships
The requirements specified in 6.10.1.1 to 6.10.1.4 shall be fulfilled, except that evacuation analysis,
referred to in 6.10.1.4, need not be performed in accordance with the IMO guidelines.
6.20.9
Openings in A and B Class Divisions
6.20.9.1 The requirements specified in 2.2.6.5, 6.1.8.3, 6.1.8.6 and 6.1.9.3, as well as the requirements
specified in the present sub-chapter shall be fulfilled.
6.20.9.2 All openings in A Class divisions shall be provided with permanently attached means of
closing which shall have the same fire resistance as the divisions in which they are fitted.
6.20.9.3 The construction of all doors and door frames in A Class divisions, with the means of
securing them when closed, shall provide resistance to fire, as well as to the passage of smoke and flame,
as far as practicable, equivalent to that of the bulkheads in which the doors are situated. Such doors and
doorframes shall be constructed of steel or other equivalent material. Watertight doors need not be
insulated.
Additional Requirements
199
6.20.9.4 The requirement for A Class integrity of the outer boundaries of a ship does not apply to glass
partitions, windows and sidescuttles, provided that in sub-chapter 6.20.12 relating to windows and
sidescuttles there is no requirement for such boundaries to have A Class integrity.
This requirement does not apply to exterior doors, except for the doors in superstructures and
deckhouses facing life-saving appliances, embarkation and external assembly station areas, external
stairs and open decks used for escape routes. Stairway enclosure doors need not meet this requirement.
6.20.9.5 Doors and door frames in B Class divisions and means of securing them shall provide a
method of closure having resistance to fire equivalent to that of the divisions, except that ventilation
openings are permitted in the lower portion of such doors. Where such opening is in or under a door, the
total net area of any such opening or openings shall not exceed 0.05 m2. Alternatively, a non-combustible
air balance duct routed between the cabin and the corridor and located below the sanitary unit is
permitted where the cross-sectional area of the duct does not exceed 0.05 m2. All ventilation openings
shall be fitted with a grill made of non-combustible material. Doors shall be non-combustible.
6.20.9.6 For reasons of noise reduction, doors with built-in ventilation sound-locks with openings at
the bottom on one side of the door and at the top on the other side may be approved as an equivalent, on
condition that the following requirements have been fulfilled:
.1 the upper opening shall always face the corridor and shall be provided with a grating of noncombustible material and an automatically operating fire damper, activated at a temperature of
about 70 °C;
.2 the lower opening shall be provided with a grating made of a non-combustible material;
.3 the doors shall be tested in accordance with IMO Resolution A.754 (18) or FTP Code, Annex 1, Part
3.
6.20.9.7
Cabin doors in B Class divisions shall be of a self-closing type. Hold-backs are not permitted.
6.20.10 Protection of Stairways and Lifts in Accommodation and Service Spaces
The requirements specified in 6.1.7 and 6.1.6.10.3 shall be fulfilled.
6.20.11
Fire Protection of Exhaust Ducts from Galley Range
6.20.11.1 In ships carrying more than 36 passengers, exhaust ducts from galley ranges in which grease
or fat is likely to accumulate shall fulfil the requirements specified in 6.1.17.2.
6.20.11.2 In ships carrying not more than 36 passengers, exhaust ducts from galley ranges passing
through accommodation spaces or spaces containing combustible materials shall fulfil the requirements
specified in 2.7.1.
6.20.12
6.20.12.1
Windows and Sidescuttles
The requirements specified in 6.1.10.1 and 6.1.10.2 shall be fulfilled.
6.20.12.2 In ships carrying more than 36 passengers, windows facing life-saving appliances,
embarkation and assembly areas, external stairs and open decks used for escape routes, and windows
situated below liferaft and escape slide embarkation areas shall have the fire integrity as required in Table
6.1.4-1. Where automatic dedicated sprinkler heads are provided for these windows, A-0 windows may be
accepted as equivalent. Sprinkler heads must be either:
.1 dedicated heads located above the windows and installed in addition to the conventional ceiling
sprinklers; or;
.2 conventional ceiling sprinkler heads so arranged that the window is protected by an average
application rate of at least 5 litres/m2 per minute and the additional window area is included in
the calculation of the area of coverage.
Windows located in the ship’s side below the lifeboat embarkation areas shall have the fire integrity at
least equal to A-0 Class. In ships carrying not more than 36 passengers, notwithstanding the requirements
relating to fire integrity given in Tables 6.1.5-1 and 6.1.5-2, special attention shall be given to the fire integrity
200
Fire Protection
of windows facing open or enclosed lifeboat and liferaft embarkation areas and to the fire integrity of
windows situated below such areas in such a position that their failure during a fire would impede the
launching of, or embarkation into, lifeboats or liferafts.
6.20.13
Restricted Use of Combustible Materials
6.20.13.1 Except in cargo spaces, mail rooms, baggage rooms or refrigerated compartments of service
spaces, all linings, grounds, draught stops, ceilings and insulation shall be of non-combustible materials.
Partial bulkheads or decks used to subdivide a space for utility or artistic treatment shall also be of noncombustible material.
6.20.13.2 Vapour barriers and adhesives used in conjunction with insulation, as well as insulation of
piping and pipe fittings for cold service systems need not be non-combustible, but they shall be kept to
the minimum quantity practicable and their exposed surfaces shall have low flame-spread characteristics.
6.20.13.3 The following surfaces shall have low flame-spread characteristics:
.1 exposed surfaces in corridors and stairway enclosures, as well as bulkheads, wall and ceiling
linings in all accommodation spaces, service spaces and control stations;
.2 concealed or inaccessible spaces in accommodation spaces, service spaces and control stations.
6.20.13.4 Total volume of combustible facings, mouldings, decorations and veneers in
accommodation and service spaces shall not exceed a volume equivalent to 2.5 mm veneer on the
combined area of the walls and ceilings. Furniture fixed to linings, bulkheads or decks need not be
included in the calculation of the total volume of combustible materials.
In the case of ships fitted with the sprinkler system in accordance with the requirements of 3.3, the
above volume may include some combustible material used for erection of C Class divisions.
6.20.13.5 Veneers used on surfaces and linings covered by the requirements of 6.20.13.3 shall have Q
calorific value not exceeding 45 MJ/m2 of the area for the thickness used.
6.20.13.6 Furniture in stairway enclosures shall be limited to seating. It shall be fixed, limited to six
seats on each deck in each stairway enclosure, be of restricted fire risk, and shall not restrict the
passenger escape route. Additional seating in the main reception area within a stairway enclosure if it is
fixed, non-combustible and does not restrict the passenger escape route is permitted.
Furniture is not permitted in passenger and crew corridors forming escape routes in cabin areas.
However, lockers of non-combustible material, providing storage for the required safety equipment, may
be permitted.
Drinking water dispensers and ice cube machines may be permitted in corridors, provided they are
fixed and do not restrict the width of the escape routes. This also applies to decorative flower or plant
arrangements, statues or other objects of art, such as paintings and tapestries in corridors and stairways.
6.20.13.7 Paints, varnishes and other finishes used on exposed interior surfaces shall not be capable of
producing excessive quantities of smoke and toxic products, this being determined in accordance with
the FTP Code, Annex 1, Part 2.
6.20.13.8 Primary deck coverings, if applied within accommodation and service spaces and control
stations, shall be of an approved material which will not readily ignite or give rise to toxic or explosive
hazards at elevated temperatures, this being determined in accordance with the FTP Code, Annex 1, Part 6.
6.20.14
Fixed Fire Detection, Fire Alarm and Automatic Sprinkler System
in Ship Spaces
6.20.14.1 In ships carrying not more than 36 passengers and in ships with a length of less than
24 metres there shall be installed throughout each separate zone, whether vertical or horizontal, in all
accommodation and service spaces and in control stations, except spaces which afford no substantial fire
risk such as void spaces, sanitary spaces, etc., either:
Additional Requirements
201
type-approved fixed fire detection and fire alarm system in accordance with the requirements
specified in 4.1 and 6.1.14 which shall be so installed and arranged as to detect the presence of
fire in such spaces, and also providing smoke detection in corridors, stairways and escape routes
within accommodation spaces; or
type-approved automatic sprinkler system, in accordance with the requirements specified in 3.3
and 6.1.13, which shall be so installed and arranged as to protect such spaces and, additionally, a
type-approved fixed fire detection and fire alarm system in accordance with the requirements
specified in 4.1 and 6.1.14 which shall be so installed and arranged as to provide smoke detection
in corridors, stairways and escape routes within accommodation spaces.
.1
.2
6.20.14.2 Ships carrying more than 36 passengers shall be fitted with:
.1 type-approved automatic sprinkler system in accordance with the requirements specified in 3.3
and 6.1.13 installed in all service spaces, control stations and accommodation spaces, including
corridors and stairways. Alternatively control stations where water may cause damage to
essential equipment may be fitted with an approved fixed fire-extinguishing system of another
type; and
.2 type-approved fixed fire detection and fire alarm system in accordance with the requirements
specified in sub-chapters 4.1 and 6.1.14 which shall be so installed and arranged as to provide smoke
detection in service spaces, control stations and accommodation spaces, including corridors and
stairways. Smoke detectors need not be fitted in private bathrooms and galleys.
Spaces having little or no fire risk such as voids, public toilets, carbon dioxide rooms and similar
spaces need not be fitted with an automatic sprinkler system or fixed fire detection and alarm system.
6.20.14.3 Ships with a length of less than 24 metres shall be fitted with an automatic sprinkler system
and fixed fire detection and alarm system as required for ships carrying more than 36 passengers in
6.20.14.1.
6.20.14.4 In ships assigned an additional mark indicating their adjustment to periodically unattended
operation of the machinery spaces, a type-approved fixed fire detection and alarm system shall be
installed in the machinery spaces in accordance with the requirements specified in sub-chapter 6.16.2.
Where the navigating bridge is unattended, the alarm system shall be operable from the position
attended by an authorised crew member.
6.20.15
Fire Protection of Special Category Spaces
The requirements specified in 6.10.2 shall be fulfilled.
6.20.16
Additional Requirements for Ships Carrying Dangerous Goods
Passenger ships carrying dangerous goods shall fulfil the requirements specified in sub-chapter 2.10.
6.20.17
Requirements for Ships Cooperating with Helicopter
Ships cooperating with helicopter shall fulfil the requirements specified in 7.1.
6.21
Cargo Ships of Less than 500 Gross Tonnage – Minimum Requirements
The requirements specified in sub-chapter 6.21 apply to cargo ships including tugs, supply vessels,
dredgers, hopper barges, pilot craft, as well as barges and pontoons without their own propulsion (except
for chemical carriers and gas tankers) of less than 500 gross tonnage.
These ships shall fulfil the relevant requirements specified in 2.1 to 2.8; the requirements specified
in present sub-chapter shall be fulfilled in each particular case.
Chemical carriers and gas tankers shall fulfil the requirements of the IBC Code and the IGC Code,
respectively – see sub-chapters 6.12 and 6.11.
202
6.21.1
6.21.1.1
Fire Protection
Structural Fire Protection
Fire Integrity of Divisions Separating Adjacent Spaces
Machinery spaces of category A shall be enclosed by A-60 Class divisions where adjacent to:
accommodation spaces, control stations, corridors, staircases and by A-0 Class divisions elsewhere.
Galleys shall be separated from the adjacent spaces by at least A-0 Class divisions.
Service spaces of high fire risk other than galley shall be separated from the adjacent spaces by at
least B-15 Class divisions.
Corridors and staircases shall be separated from the adjacent spaces by at least B-0 Class divisions.
Cargo spaces shall be separated from the adjacent spaces by at least A-0 Class divisions.
Divisions used to separate spaces other than those, referred to above, shall be of non-combustible
material.
6.21.1.2
Closing Arrangements for Openings in Fire Divisions
Openings in A Class divisions shall be provided with permanently attached means of closing which
shall be at least as effective for resisting fires as the divisions in which they are fitted.
Doors shall be self-closing in way machinery spaces of category A and galleys, except where they are
normally kept closed.
6.21.1.3
Means of Control in Machinery Spaces of Category A
In category A machinery spaces, means of control specified in 2.1.4.3 shall be used. These controls, as
well as the controls of fire-extinguishing systems shall be situated at one control position outside the
space concerned where they will not be cut off in the event of fire in the space they serve. Such positions
shall have safe access from the open deck.
6.21.1.4
Means of Escape
There shall be at least two means, as widely separated as possible, of escape to the open deck from
each section of accommodation and service spaces and control stations.
The normal means of escape to the accommodation and service spaces below the open deck shall be
so arranged that it is possible to reach the open deck without passing through spaces containing a
possible source of fire (e.g. machinery spaces, storage spaces of flammable liquids). The second means
of escape may be through portholes or hatches of adequate size leading directly to the open deck.
At least two means of escape shall be provided from machinery spaces of category A by steel ladders
one of which shall not be an emergency exit.
6.21.2
6.21.2.1
Water Fire Main System
Fire Pumps
Water fire main system shall be supplied by one main fire pump, independently driven; one portable
fire pump shall be additionally provided on board the ship.
The total capacity of the main fire pump shall be determined in accordance with the following
formula:
Q = (0.145(L(B+D))1/2 + 2.17)2, [m3/h],
need not, however, exceed 25 m3/h, where:
L – length of ship, [m] – see Part I – Classification Regulations;
B – moulded breadth, [m] – see Part I – Classification Regulations;
D – moulded depth to bulkhead deck, [m].
On ships of gross tonnage 150 and upwards, the pressure maintained at any hydrant shall be sufficient to
produce a jet throw at any nozzle of not less than 12 m.
On ships of gross tonnage less than 150, a lesser jet of water may be specially considered.
Additional Requirements
6.21.2.2
6.21.2.2.1
203
Portable Fire Pump
Portable fire pump shall fulfil the following requirements:
the pump shall be self-priming and have a capacity at least 12 m3/h;
the total suction head and the net positive suction head of the pump shall be determined taking
account of actual operation, i.e. pump location when used and the size of the ship;
.3
the portable fire pump, when fitted with its length of discharge hose and nozzle, shall be capable
of maintaining a pressure sufficient to produce a jet throw of at least 12 m, or that required to
enable a jet of water to be directed on any part of the engine room or the exterior boundary of
the engine room and casing, whichever is greater;
.4
except for electric pumps, the pump set shall have its own fuel tank of sufficient capacity to
operate the pump for three hours. For electric pumps, their batteries shall have sufficient
capacity for three hours;
.5
the pump powered by an internal combustion engine shall use oil fuel having a flash point above
60 ºC. If the fuel type has a flashpoint below 60 ºC, further consideration to the fire safety
aspects shall be given;
.6
the pump set shall be stored in a secure, safe and enclosed space, accessible from the open deck
and clear of the machinery space of category A;
.7
the pump set shall be easily moved and operated by two persons and readily available for
immediate use;
.8
arrangements shall be provided to secure the pump at its anticipated operating position(s);
.9
the overboard suction hose shall be non-collapsible and of sufficient length to ensure suction
under all operating conditions. A suitable strainer shall be fitted at the inlet end of the hose;
.10 any diesel-driven source for the pump shall be capable of being readily started in its cold
condition by hand (manual cranking);
Means to illuminate the stowage area of the portable pump and its necessary areas of operation shall
be provided from the emergency source of electrical power.
On ships of gross tonnage less than 150, a portable fire pump need not be provided if an approved
fixed total flooding fire-extinguishing pump is fitted in the machinery space.
.1
.2
6.21.2.2.2 In lieu of portable fire pump, a fixed fire pump may be used which should comply with the
following:
.1 the pump, its source of power and sea connection shall be located in accessible positions, outside
the compartment housing the main pump;
.2 the valve shall be capable of being operated from a position near the pump;
.3 the room where the fire pump and its prime mover is located shall be illuminated from the
emergency source of electrical power and shall be ventilated;
.4 where the pump is required to supply water for a fixed fire-extinguishing system in the space
where the main fire pump is situated, it shall be capable of simultaneously supplying water to
this system and the fire main at the required rates;
.5 the pump may also be used for other suitable purposes, subject to PRS’ consent in each particular
case;
.6 pressure and quantity of water delivered by the pump shall be sufficient to produce a jet of water,
at any nozzle, of not less than 12 m in length. On ships of gross tonnage less than 150, a lesser jet
of water may be specially considered.
6.21.2.3
Piping
The diameter of the fire main shall be based on the required capacity of the fixed main fire pump(s) and
the diameter of the water service pipes shall be sufficient to ensure an adequate supply of water for the
operation of at least one fire hose.
If a fixed fire pump, instead of a portable pump, is fitted outside the engine room where the main fire
pump is situated, an isolating valve shall be fitted in the fire main so that all the hydrants on board the
ship, except those in the machinery space, can be supplied with water. The isolating valve shall be
located in an easily accessible and tenable position outside the machinery space.
The fire main shall not re-enter the machinery space downstream of the isolating valve.
204
Fire Protection
6.21.2.4
Fire Hydrants
On ships of 150 gross tonnage and upwards, the number and position of hydrants shall be such that at
least two jets of water may reach any accessible part of the ship in accordance with the requirements
specified in 3.2.6.2.
On ships of less than 150 gross tonnage, the number and position of hydrants shall be such that at
least one jet of water may reach any accessible part of the ship. At least one hydrant shall be provided in
each machinery space of category A.
6.21.2.5
Fire Hoses
Fire hoses shall, in general, have a length not exceeding 18 m.
Ships of 150 gross tonnage and upwards shall be provided with fire hoses the number of which shall
be one for each 30 m length of the ship and additionally a spare one, in no case, however, less than three
in all.
On ships of less than 150 gross tonnage, one hose shall be provided for each hydrant. In addition one
spare hose shall be provided onboard.
6.21.3
Fixed Fire Detection and Fire Alarm Systems in Machinery Spaces
of Category A
In each machinery space of category A, a fixed fire-detection and fire-alarm system shall be installed
in accordance with the requirements specified in 6.16.2.
6.21.4
Fixed Fire-Extinguishing System in Machinery Spaces of Category A
On ships of 150 gross tonnage and upwards, machinery spaces of category A shall be provided with a
type-approved fixed total flooding fire-extinguishing system complying with the applicable requirements
specified in 2.5.1.1.
6.21.5
Fire Protection of Paint Lockers and Flammable Liquid Lockers
Paint lockers and flammable liquid lockers shall be provided with at least one portable 6 kg dry
powder fire extinguishers situated directly at the entrance to such a locker.
6.21.6
6.21.6.1
Fire-Fighting Equipment
Portable Fire-Extinguishers
The minimum number of portable fire-extinguishers shall be as follows:
.1 in accommodation spaces, service spaces and control stations:
– on ships of 150 gross tonnage and upwards – at least 3 extinguishers;
– on ships of less than 150 gross tonnage – at least 1 extinguisher;
.2 in machinery spaces (one extinguisher per every 375 kW of internal combustion engine power) –
at least 2 extinguishers, however, not more than 6 extinguishers are required.
Accommodation spaces, service spaces and control stations shall be provided with a sufficient
number of portable fire-extinguishers which shall be so arranged as to ensure that at least one
extinguisher will be readily available for use in every compartment of these spaces and to ensure that at
least one extinguisher will be available at each deck having accommodation or service spaces, or control
stations.
For each required portable fire-extinguisher, duplicate extinguishers shall be provided.
6.21.6.2
Fire-Fighter’s Outfit
All cargo ships of 150 gross tonnage and upwards shall be provided with at least one fire-fighter’s outfit
(including an axe) in accordance with the requirements specified in 5.1.4.
6.21.6.3
Fire Blanket
Each ship shall be provided with at least one fire blanket.
Additional Requirements
6.21.7
205
Fire Protection of Tankers Carrying Products with a Flash-point Not Exceeding 60 ºC
These tankers shall fulfil the requirements specified in sub-chapter 6.3.
6.21.8
Additional Fire Protection of Tankers Carrying Products with a Flash-point Exceeding 60 ºC
6.21.8.1
Cargo Pump-Room
In the cargo pump-room, a type-approved fixed fire-detection and alarm system shall be installed,
complying with the applicable requirements specified in 4.1.
6.21.8.2
Cargo Area Deck Protection
On the cargo tank deck, the following fire-fighting equipment shall be provided:
– mobile foam-type fire-extinguishing unit having 135 l; or
– portable foam applicator unit in accordance with the requirements specified in 5.1.3.
Foam concentrate used shall be suitable for the cargoes to be carried.
6.21.9
Fire Protection of Ships not Fitted with Propelling Machinery
The requirements for fire protection for such ships are specified by PRS considering in each case their
size and purpose, arrangement of the accommodation spaces, machinery and combustible materials on
board.
The scope of documentation for consideration and approval to be submitted to PRS Head Office shall
be agreed with PRS in each particular case; such documentation shall indicate the proposed fire
protection structural arrangements, applications of fixed fire-detection and alarm systems, as well as fireextinguishing systems and also state the positioning of portable fire-extinguishers.
6.21.10
Fire Control Plan
On all cargo ships, Fire Control Plan complying with the requirements specified in 1.4.2, shall be
exhibited on board the ship.
On ships of 150 gross tonnage and upwards, a duplicate of Fire Control Plan shall be kept in a firmly
sealed container positioned outside the superstructure at the entrance to be used by the shore fire brigade
during the fire while in port.
6.22
Ships with Natural Gas-Fuelled Engines
Fire protection of those ships shall be in accordance with the guidelines specified in Publication No.
88/P (Res. MSC.285(86)).
6.23
Vehicle Carriers 92
6.23.1
General
The vehicle carriers shall comply with applicable requirements for the protection of ro-ro spaces and
vehicle spaces, given in 6.2.2.
6.23.2
Requirements for Spaces intended for the Carriage of Motor Vehicles with Compressed
Natural Gas in their Tanks for their Own Propulsion as Cargo
6.23.2.1
Electrical Equipment and Wiring
All electrical equipment and wiring shall be of a certified safe type for use in an explosive methane
and air mixture. 93
92
93
The requirements of this subchapter apply to ships constructed on or after 1 January 2016.
Refer to Publication IEC 60079
206
6.23.2.2
Fire Protection
Ventilation Arrangement
6.23.2.2.1 Electrical equipment and wiring, if installed in any ventilation duct, shall be of a certified
safe type for use in explosive methane and air mixtures.
6.23.2.2.2 The fans shall be such as to avoid the possibility of ignition of methane and air mixtures.
Suitable wire mesh guards shall be fitted over inlet and outlet ventilation openings.
6.23.2.3
Other Ignition Sources
Other equipment which may constitute a source of ignition of methane and air mixtures shall not be
permitted in cargo spaces.
6.23.3
Requirements for Spaces intended for the Carriage of Motor Vehicles with Compressed
Hydrogen in their Tanks for their Own Propulsion as Cargo
6.23.3.1
Electrical Equipment and Wiring
All electrical equipment and wiring shall be of a certified safe type for use in an explosive hydrogen and
air mixture 94
6.23.3.2
Ventilation Arrangement
6.23.3.2.1 Electrical equipment and wiring, if installed in any ventilation duct, shall be of a certified
safe type for use in explosive hydrogen and air mixtures and the outlet from any exhaust duct shall be
sited in a safe position, having regard to other possible sources of ignition.
6.23.3.2.2 The fans shall be designed such as to avoid the possibility of ignition of hydrogen and air
mixtures. Suitable wire mesh guards shall be fitted over inlet and outlet ventilation openings.
6.23.3.3
Other Ignition Sources
Other equipment which may constitute a source of ignition of hydrogen and air mixtures shall not be
permitted in cargo spaces.
6.23.4
Gas Detection
When a vehicle carrier carries as cargo one or more motor vehicles with either compressed hydrogen
or compressed natural gas in their tanks for their own propulsion, at least two portable gas detectors shall
be provided. Such detectors shall be suitable for the detection of the gas fuel and be of a certified safe
type for use in the explosive gas and air mixture.
94
Refer to Publication IEC 60079
Requirements for Appliances and Equipment Posing Additional Risk of Fire
7
207
REQUIREMENTS FOR APPLIANCES AND EQUIPMENT POSING ADDITIONAL RISK
OF FIRE ONBOARD SHIPS
7.1
Helicopter Facilities
7.1.1
Application
7.1.1.1 Depending on helicopter operation, ships shall be provided with specially designated and
equipped areas: helideck, helicopter landing area or winching area, defined in 7.1.2.
7.1.1.2 Ships equipped with helideck shall fulfil the requirements specified in sub-chapter 7.1.3, 7.1.4,
7.1.6 and 7.1.8.
7.1.1.3 Ships provided with helicopter landing area shall fulfil the requirements specified in subchapters 7.1.5 and 7.1.8.
7.1.1.4 Ships provided with a winching area shall be fitted with portable fire-fighting equipment,
specified in 7.1.4.3, located in the vicinity of the winching area.
7.1.1.5 Ships provided with helicopter refueling and hangar facilities shall fulfil the requirements
specified in sub-chapter 7.1.6.
7.1.2
Definitions
For the purpose of the present Chapter, the following definitions have been adopted:
.1 H e l i d e c k – a purpose–built helicopter landing platform or other deck area including all
structure, fire-fighting appliances and other equipment necessary for the safe operation of
helicopter.
.2 H e l i c o p t e r l a n d i n g a r e a – an area on a ship designated for occasional or emergency
landing of helicopter and not designed for routine helicopter operations.
.3 W i n c h i n g a r e a – a pick-up area provided for the transfer by helicopter of personnel or
stores to or from the ship, while helicopter hovers above the deck.
7.1.3
Helideck Structure
7.1.3.1 Helideck shall be constructed of steel or other equivalent material. If the helideck forms the
deckhead of a deckhouse or superstructure, it shall be insulated to A-60 Class standard.
7.1.3.2 Aluminium or other low-melting metal construction is permitted, provided the following
requirements are fulfilled:
.1 if the platform is cantilevered over the side of the ship, then after each fire on the ship or on the
platform, the platform shall undergo a structural analysis to determine its suitability for further
use;
.2 if the platform is located above the ship’s deckhouse or a similar structure, the following
requirements shall be fulfilled:
.1 the deckhouse top and bulkheads under the platform shall have no openings;
.2 all windows under the platform shall be provided with steel covers;
.3 after each fire on the platform or in close proximity, the platform shall undergo a structural
analysis to determine its suitability for further use.
7.1.3.3 Helideck shall be provided with both the main and an emergency means of escape and access
for fire-fighting and rescue personnel. These means of escape shall be located as far apart from each
other as practicable and preferably on the opposite sides of the helideck.
7.1.3.4 Helideck shall be provided with drainage facilities, constructed of steel and led directly
overboard, independent of any other system and so designed that drainage does not fall on to any part of
the ship.
208
7.1.4
7.1.4.1
7.1.6.
Fire Protection
Helideck Fire Protection
Helideck shall be fitted with a fixed foam system complying with the requirements specified in
7.1.4.2 The helideck area shall be provided with a least 2 fire hydrants and 2 duel-type nozzles, with a fire
hose capable of supplying water to each part of the helideck.
7.1.4.3 In the close proximity of the helideck, the following fire-fighting appliances shall be provided:
.1 at least two mobile dry-powder extinguishers having a total capacity of not less than 45 kg;
.2 carbon dioxide fire-extinguishers of a total capacity not less than 18 kg or equivalent;
.3 two sets of fire-fighter’s outfits in accordance with the requirements specified in 5.1.4,
in addition to those required elsewhere in Part V;
.4 at least one rescue kit, stored in a manner that provides for immediate use and protection against
weather conditions, consisting of:
– adjustable wrench;
– blanket, fire-resistant;
– cutters, bolt 60 cm;
– hook;
– hacksaw, heavy duty, complete with 6 spare blades;
– ladder;
– lifeline of 5 mm in diameter and 15 m in length;
– pliers, side-cutting;
– set of assorted screwdrivers;
– harness knife complete with sheath.
7.1.5
Fire Protection of Helicopter Landing Area
7.1.5.1 For helicopter landing areas, at least two hose reel foam stations shall be provided, each
capable of discharging a minimum foam solution discharge rate, depending on helicopter category in
accordance with Table 7.1.6.3 or alternatively at least two portable foam applicators.
7.1.5.2 The helicopter landing area shall be provided with a least 2 fire hydrants and 2 duel-type
nozzles, with a fire hose capable of supplying water to each part of the landing area.
7.1.5.3 The quantity of foam concentrate shall be adequate to allow operation of all connected
discharge devices for at least 10 min.
7.1.5.4 Hose reel foam station and fire hydrants shall be provided with a means of access that does not
require travel across the helicopter landing area.
7.1.5.5 In addition, the fire-fighting equipment, listed in 7.1.4.3, shall be provided in the vicinity of the
helicopter landing area.
7.1.6
Foam Fire-Extinguishing System for the Helideck
7.1.6.1 For helideck, the foam system shall contain at least two fixed foam monitors or deck integrated
foam nozzles.
7.1.6.2 In addition, at least two hose reels fitted with foam-making branch pipe and non-collapsible
hose sufficient to reach any part of the helideck shall be provided.
7.1.6.3 Depending on helicopter category, the minimum foam system discharge rate shall be
determined by multiplying the D-value area, given in Table 7.1.6.3, by 6 l/min/m2.
Requirements for Appliances and Equipment Posing Additional Risk of Fire
209
Table 7.1.6.3
Helicopter
category
Helicopter overall length L
Discharge rate of foam solution
[l/min]
H1
L < 15 m
250
H2
15 m ≤ L < 24 m
500
H3
24 m ≤ L < 35 m
800
7.1.6.4 The minimum foam system discharge rate for deck integrated foam nozzle system shall be
determined by multiplying the overall helideck area by 6 l/min/m2.
7.1.6.5 The foam concentrate shall be of an approved type and be demonstrated effective for
extinguishing aviation fuel spill fires and shall be in accordance with performance standards not inferior
to those specified in MSC.1/Circ.1312/Corr.1. Where the foam storage tank is on the exposed deck,
freeze protected foam concentrates shall be used, if appropriate, for the area of operation.
7.1.6.6 The quantity of foam concentrate shall be adequate to allow operation of all connected
discharge devices for at least 5 min.
7.1.6.7 Means shall be provided for the crew to safely check the quantity of foam concentrate in the
tanks and taking the foam concentrate samples for the periodical checking of its quality. The minimum
level/required quantity of foam concentrate shall be marked on the tank.
The location of the foam concentrate storage tank shall be indicated by a plate with the symbol used
on Fire Control Plan.
7.1.6.8 Each monitor shall be capable of supplying at least 50% of the minimum foam system
discharge rate, but not less than 500 l/min. The minimum discharge rate of each hose reel shall be at least
400 l/min.
7.1.6.9 The foam system shall be capable of manual release, and may be arranged for automatic
release.
The location of the remote manual control of foam system shall be indicated by a plate with the
symbol used on Fire Control Plan.
7.1.6.10 The distance from the monitor to the farthest extremity of the protected area shall not exceed
75% of the monitor throw in still air conditions.
7.1.6.11 Manual release station capable of starting necessary pumps and opening required valves,
including the fire main system, if used for water supply, shall be located at each monitor and hose reel. In
addition, a central manual release station shall be provided at a protected location. The foam system shall
be designed to discharge foam with nominal flow and at design pressure from any connected discharge
devices within 30 s of activation.
7.1.6.12 Activation of any manual release station shall initiate the flow of foam solution to all
connected hose reels, monitors and deck integrated foam nozzles.
7.1.6.13 The system and its components shall be designed to withstand ambient temperature changes,
vibration, humidity, shock impact and corrosion normally encountered on the open deck.
7.1.6.14 A minimum nozzle throw of at least 15 m shall be provided with all hose reels and monitors
discharging foam simultaneously. The discharge pressure, flow rate and discharge pattern of deck
integrated foam nozzles shall be so selected as to ensure capability to extinguish fires involving the
largest size helicopter for which the helideck is designed.
210
Fire Protection
7.1.6.15 Monitors, foam making branch pipes, deck integrated foam nozzles and couplings shall be
constructed of brass, bronze or stainless steel. Pipings, fittings and related components, except gaskets,
shall be so designed to withstand 925 ºC.
7.1.6.16 All manual release stations, foam monitors and hose reels shall be provided with a means of
access that does not require travel across the helicopter landing area.
7.1.6.17 Oscillating monitors, if used, shall be preset to discharge foam in spray pattern and have a
means of disengaging the oscillating mechanism to allow rapid conversion to manual operation.
7.1.6.18 If foam monitors with flow rate up to 1000 l/min are installed, they shall be equipped with
air-aspirating nozzles. If a deck integrated nozzle system is installed, then the additionally installed hose
reel shall be equipped with an air-aspirating handline nozzle. The use of non air-aspirating foam nozzles
(on both: monitors and the additional hose reel) is permitted only where foam monitors with a flow rate
above 1000 l/min are installed.
7.1.7
Helicopter Refuelling and Hangar Facilities
7.1.7.1 If the ship is provided with helicopter refueling and hangar facilities, the requirements specified
in this sub-chapter shall be fulfilled.
7.1.7.2 Hangar shall be treated as machinery space of category A with regard to structural fire
protection.
7.1.7.3 Hangar shall be fitted with a fixed total flooding fire-extinguishing system, required in 2.5.1.1
for machinery spaces of category A and fire detection and fire alarm system.
The loop of fire detectors in hangar shall not include detectors and manually operated call points
installed in machinery space category A.
7.1.7.4 Designated area shall be provided for the storage of fuel tanks which shall be:
.1 as remote as is practicable from accommodation spaces, escape routes and lifeboat embarkation
stations; and
.2 isolated from areas containing a source of vapours ignition.
7.1.7.5 Fuel storage area shall be provided with arrangements whereby fuel spillage may be collected
and drained to a safe location.
7.1.7.6 Fuel storage tanks shall be constructed of metal, be fitted with fuel level indicator, fuel filling
and refueling pipe connector with a filter, fuel contamination drain cover, fuel samples cock and
ventilating pipes fitted with vent heads of an approved type with flame arresters. Areas where fuel tanks
are situated and fuelling operations conducted shall be effectively isolated from enclosed spaces or other
areas which contain a source of vapour ignition.
7.1.7.7 Portable fuel storage tanks shall be of appropriate design and be suitably installed, protected
against damage and earthed.
7.1.7.8 Storage tank fuel pumps shall be provided with means which permit shutdown from a safe
remote location in the event of a fire. Where a gravity fuelling system is installed, equivalent closing
arrangements shall be provided to isolate the fuel source.
7.1.7.9 Fuel pumping unit shall be connected to one tank at a time. The piping between the tank and
the pumping unit shall be of steel or equivalent material, as short as possible, and protected against
damage.
7.1.7.10
type.
Electrical fuel pumping units and associated control equipment shall be of an explosion-proof
Requirements for Appliances and Equipment Posing Additional Risk of Fire
211
7.1.7.11 Fuel pumping units shall incorporate a device which will prevent over-pressurization of the
delivery or filling hose.
7.1.7.12
Equipment used in refueling operations shall be electrically bonded.
7.1.7.13 “NO SMOKING” signs shall be displaced in vicinity of helicopter refueling and on access
door to hangar.
7.1.7.14 Enclosed hangar facilities or enclosed spaces containing refuelling installations shall be
provided with mechanical ventilation in accordance with the requirements specified in sub-chapter 11.9,
Part VI – Machinery Installations and Refrigerating Plants.
7.1.7.15 Electric equipment and wiring in enclosed hangar or enclosed spaces containing refueling
installations shall be of an explosion-proof type.
7.1.8
Helicopter Operation Manuals
7.1.8.1 For each helideck, Operation Manual containing a description and a checklist of safety
precautions, procedures and equipment requirements shall be prepared. Such a manual may be part of the
ship’s emergency response procedures.
7.1.8.2 Operation Manual shall contain safety procedures and precautions to be followed during
helicopter refueling operations.
7.1.8.3 Operation Manual shall include the responsibilities of fire-fighting personnel consisting of at
least two persons who shall be present on the helideck at all times when helicopter operations and
refuelling are expected.
7.2
Store-Rooms for Flammable Liquids with a Flash-Point below 43 °C
7.2.1 Flammable liquids with a flash-point below 43 °C, determined by an approved flash-point
apparatus (closed cup test) shall be stored inside ventilated store-rooms in metallic receivers; each of
such receivers shall be fitted with:
.1 self-closing tap valve;
.2 fuel level indicator closed type;
.3 pipe for filling the receiver from outside of the store-room;
.4 vent pipes led out to the open deck, fitted with vent heads of an approved type with flame
arresters;
.5 drip tray.
The quantities of any flammable liquids not exceeding 35 l may be stored in metallic canisters with
tight closure.
Where the total volume of the receivers exceeds 250 l (but does not exceed 2500 l), the store-room
used for their storage shall be fitted with independent mechanical ventilation ensuring the removal of air
from the lower parts of the space at the rate not less than 20 changes per hour.
Supply ventilation may be of natural type.
Switching on the fans shall be integrated with the arrangement opening the access door to the storeroom. The whole equipment inside the store-room space shall be of explosion-proof type in accordance
with the requirements specified in sub-chapter 2.8, Part VIII – Electrical Installations and Control
Systems.
Where the quantity of flammable liquids exceeds 2500 l, the tanks for their storage shall fulfil the
requirements specified in 7.3.
7.2.2 In ships of less than 300 gross tonnage, where the arrangement of a special space for flammable
liquids of a flash-point below 43 °C is not practicable, the liquids can be stored in steel ventilated cabinets
or boxes. Such cabinets or boxes shall not be adjacent to accommodation spaces and their doors shall open
outwards.
212
Fire Protection
Inside the cabinets or boxes, the liquids shall be stored in metallic canisters with tight closures and
their total volume shall not exceed 50 l.
7.3
Tanks and Distributing Stations Intended for Fuel of a Flash-Point
below 43 °C
7.3.1 Tanks intended for fuel of a flash-point below 43 °C, determined by an approved apparatus
(close-cup test), shall fulfill the following requirements:
.1 they shall be built into the ship’s hull near its fore or aft portion, if possible;
.2 they shall be surrounded from all sides and corners, excluding the side below the lowest
waterline, with cofferdams which, in normal service conditions, shall be filled with inert gas. Air
pipes shall fulfil the requirements specified in sub-chapter 9.1, Part VI – Machinery Installations
and Refrigerating Plants. The cofferdams shall be fitted with sounding pipes led out to the open
deck;
.3 each fuel tank shall be fitted with the piping as follows: filling pipes, fuel discharge pipes,
sounding and air pipes. The lower end of filling pipe shall be situated not more than 300 mm and
the lower end of sounding pipe not more than 30 mm above the tank bottom. It is recommended
that closed type level meter, instead of the sounding pipes, be used;
.4 vent pipes of the tank shall be raised at least 2.5 m above the open deck. The outlets of these pipes
shall be at the distance of at least 9 m from openings in superstructures and deckhouses and shall be
fitted with approved type flame arresters;
.5 all fuel tank pipes shall be led from the tanks to oil fuel stations inside a separate gastight trunk of
dimensions enabling access over the whole length of the trunk. The trunk walls shall be made as
A-60 Class divisions or, if the trunk shall be filled with water or inert gas, A-0 Class division. In
all cases, the supply and exhaust ventilation of the trunk shall be ensured. The outlets of
ventilation pipes shall be fitted with flame arresters;
.6 all the fuel pipelines, machinery, fittings and instruments associated with fuel storage and
transport shall be reliably grounded to the ship’s hull structure in order to avoid formation of
electrostatic charges.
7.3.2 Distributing stations for fuel with a flash-point below 43 °C shall fulfil the following
requirements:
.1 they shall be located on the open deck as far as possible from accommodation spaces and from
possible sources of ignition;
.2 they shall be enclosed with A-60 Class fire-resisting divisions. The doors may be A Class doors,
made of steel without insulation. The station shall be surrounded by gastight bulkheads and
decks;
.3 deck linings, door closing appliances and the station equipment shall preclude the possibility of
sparking;
.4 the station shall be fitted with drip trays for collecting and draining the spilled oil to suitable
drain tank.
7.4
Cylinders Containing Welding Gases (Oxygen or Acetylene)
7.4.1
General Requirements
7.4.1.1
The cylinders containing welding gases shall be supplied with PRS Certificate.
7.4.1.2
The cylinders shall be fitted with cylinder valve caps.
7.4.1.3
The storage of cylinders containing oxygen or acetylene in machinery spaces is prohibited.
7.4.2
Compartments for the Storage of Cylinders
7.4.2.1 Cylinders containing welding gases (oxygen, acetylene, etc.) shall be stored in a dedicated
compartment designed for that purpose, complying with the following requirements:
Requirements for Appliances and Equipment Posing Additional Risk of Fire
.1
.2
.3
.4
.5
.6
.7
.8
213
direct access to such a compartment from the open deck shall be provided and the door shall be
locked;
the compartment shall be surrounded by A-0 Class partition and shall be separated from the firehazardous adjacent spaces by A-60 Class fire divisions;
except as necessary for service within the space, electrical wiring and fittings are not permitted
within the compartment. Where such electrical fittings are installed, they shall be of an
explosion-proof type;
separate compartment shall be provided for each type of compressed gas;
the compartment used for the storage of such gases shall not be used for other purposes;
the compartment shall be provided with effective ventilation system;
“NO SMOKING” and “EXPLOSION HAZARD. NO NAKED LIGHT” notices shall be
displayed on the entrance to such compartment;
the compartment shall be provided with safety manual containing the following information:
– on completion of work, all cylinder valves shall be kept in close position;
– flammable materials (especially oil or fat) shall not be kept in the vicinity of cylinders
containing oxygen;
– cylinder valves shall not be handled with oily or greasy hands.
7.4.2.2 Cylinders containing technical gases, including empty cylinders shall be stored in an upright
position and properly secured so as to ensure their quick removal. The cylinders shall have a clearly
legible identification of the name and chemical formula of their contents.
7.4.2.3 Cylinders shall be stored on a base made from wood or other material in such a way as not be
in direct contact with deck surface.
7.4.3
Storage of the Cylinders on Open Deck
Cylinders containing welding gases – not more than two such cylinders – may be stored on open
decks in designated positions which shall fulfil the following requirements:
.1 such positions shall be at a distance of at least 10 m from accommodation and control stations
and at least 4 m from the compartments where flammable materials are stored;
.2 such positions shall be protected against excessive variations in temperature and weather
conditions, as well as against mechanical damage;
.3 “NO SMOKING” and “EXPLOSION HAZARD. NO NAKED LIGHT” notices shall be
displayed in the vicinity of the cylinders.
7.4.4
Welding Gases Systems
7.4.4.1 The pipes supplying oxygen and acetylene to a welding shop shall be made of steel, be
connected by welded pipe coupling or flanges.
7.4.4.2
Each pipeline shall be fitted with pressure reducing valve and cut-off valve.
7.4.4.3 Where two or more cylinders are connected to a manifold, the supply pipe, between cylinders,
shall be fitted with non-return valves.
7.4.4.4
The cylinders shall be connected to the manifold by elastic pipes of approved type.
7.4.4.5 The manifold shall be fitted with a safety valve. The outlet from the safety valve shall be led to
the open deck, in a place which will not pose fire hazard.
7.4.4.6 After installation on board, the system is subject to acceptance and tests in accordance with the
approved documentation. The pipes are subject to strength tightness tests, with a test pressure equal at
least 1.25 of oxygen and acetylene working pressure.
214
7.5
Fire Protection
Heating of Spaces
7.5.1 Electric heating of spaces shall fulfil the requirements specified in Chapter 15, Part VIII – Electrical
Installations and Control Systems.
7.5.2 All heaters shall be so constructed and positioned as to preclude the possibility of ignition of
window curtains or space furnishings, as well as the luggage and clothing left by the persons using the
space concerned.
7.5.3 Usage of heating appliances with open fire, such as solid fuel (coal) or gas burning boilers with
open burners is not permitted.
7.6
Gas Fuel System for Domestic Purposes
7.6.1 Gas fuel system for domestic purposes shall fulfil the relevant national standards of the Flag
State. After its installation on board, the system is subject to acceptance and tests in accordance with the
approved documentation.
7.6.2 Cylinders containing liquefied gas for domestic purposes shall be stored on the open deck or in a
well ventilated space which opens only to the open deck.
7.6.3 A portion of open deck, recessed into a deck structure, machinery casing, deck house, etc.,
utilised for the exclusive storage of gas bottles is considered acceptable, provided that:
.1 such a recess has an unobstructed opening, except for small appurtenant structures, such as
opening corner radii, small sills, pillars, etc. The opening may be provided with grating walls and
door;
.2 the depth of such a recess is not greater 1 m.
The recesses, specified above, are considered as open deck to determine the fire integrity of
boundaries of the adjacent spaces.
7.6.4 The system shall fulfil the applicable requirements specified in the Rules for the Classification and
Construction of Inland Waterways Vessels, Part V – Fire Protection, 2010, sub-chapter 7.3.
7.7
The Arrangement of Oil Fuel Tanks
Oil fuel tanks, which do not form an integral part of the ship’s structure, shall be arranged and
separated from other tanks/spaces in accordance with the requirements specified in sub-chapter 12.7,
Part VI – Machinery Installations and Refrigerating Plants.
Supplement – Retroactive Requirements
215
SUPPLEMENT – RETROACTIVE REQUIREMENTS
1
GENERAL
1.1 The requirements specified in the present Supplement apply to existing ships, irrespective of their
construction date, unless provided otherwise elsewhere in this Supplement.
1.2 Compliance with the applicable retroactive requirements is confirmed by PRS’ Surveyor in the
report on the nearest ship survey, to be carried out after the requirements compliance date.
2
2.1
REQUIREMENTS
Halon Fire-Extinguishing Systems
2.1.1 In accordance with Regulation (EC) No. 1005/2009 of the European Parliament and of the
Council, of 16 September 2009 on substances that deplete the ozone layer, on existing ships flying the
flag of the European Union Member State, halon fire-extinguishing systems containing such halons as:
1211, 1301 and 2402, considered as controlled substances listed in Annex I (group III) to this Regulation,
are prohibited. Also portable fire-extinguishers containing the above-mentioned halons are prohibited on
board.
2.1.2 If an existing ship, to which PRS class is to be assigned, carries a halon system, such a system,
until the issue of Certificate of Class, shall be dismantled and halon shall be recovered in order to be
destroyed, recycled or reclaimed by a service station approved by the Flag State Administration for
conformity with the environmental protection rules. The dismantled halon system shall be replaced by
carbon dioxide fire-extinguishing system, complying with the requirements specified in sub-chapter
3.6.4, Part V of the Rules or an equivalent gas fire-extinguishing system, complying with the
requirements specified in sub-chapter 3.7, Part V of the Rules.
2.1.3 Portable fire-extinguishers containing the above-mentioned halons shall be replaced by other
approved fire-extinguishers, complying with sub-chapter 5.1, Part V of the Rules.
2.1.4 Documentation of a new equivalent fire-extinguishing system is subject to approval by the PRS
Head Office. After installation on board, the system shall be accepted and tested under PRS Surveyor’s
supervision for compliance with the approved documentation.
2.2
Requirements for Cargo Ships of Less than 500 Gross Tonnage
Cargo ships of gross tonnage 150 and upwards but less than 500 gross tonnage of unrestricted service,
by the survey for the issue/confirmation/renewal of Certificate of Class, shall fulfil the following
requirements:
– a portable fire pump shall be provided on board in accordance with the requirements specified in
6.21.2.2, Part V, if the fire main system is supplied by only one main fire pump;
– in machinery spaces of category A, a fire detection and fire alarm system in accordance with the
relevant requirements specified in 6.16.2, Part V shall be installed unless the machinery space is fitted
with a fixed gas fire-extinguishing system;
– for each required portable fire-extinguisher, duplicate extinguishers shall be provided;
– Fire Control Plan shall be exhibited on board the ship in accordance with the requirements specified
in 1.4.2, Part V of the Rules.
2.3
Requirements for Control of Carbon Dioxide Systems
On ships constructed before 1 July 2002, by the survey for the issue/ confirmation/ renewal of Certificate
of Class, fixed carbon dioxide fire-extinguishing systems for the protection of machinery spaces, cargo pumprooms or other spaces in which the crew is normally employed shall be provided with two independent
controls of the carbon dioxide discharge to the protected space, located inside the release cabinet in
accordance with the requirements specified in 3.6.4.2.2, Part V of the Rules.
216
2.4
Fire Protection
Portable Instruments for Measuring Oxygen and Flammable Vapour Concentrations
on Tankers – Mark: CRUDE OIL TANKER, PRODUCT CARRIER A
Each tanker constructed before 1 July 2002, by the survey for the issue/confirmation/renewal of the
Certificate of Class, shall be equipped with at least two instruments for measuring oxygen and at least
two instruments for measuring flammable vapour concentrations, together with a sufficient set of spares.
Suitable means shall be provided for the calibration of such instruments. As an alternative, at least two
dual-purpose type instruments capable of measuring both oxygen and flammable vapours, with a set of
spare parts, may be used.
2.5
Fire Dampers in Galley Exhaust Duct
In cargo ships of 500 gross tonnage and upwards, as well as on passenger ships carrying not more than 36
passengers, constructed before 1 July 2010, exhaust ducts from galley ranges passing through accommodation
spaces or spaces containing combustible materials shall fulfil the applicable requirements specified in 2.7.1,
Part V of the Rules and by the survey for the issue/ confirmation/renewal of Certificate of Class, additional
fire damper shall be fitted in the upper part of the duct in accordance with the requirements specified in
paragraph 2.7.1.1.2, Part V of the Rules.
2.6
Prohibition of the Use of Materials Containing Asbestos
Since 1 January 2011, new installation of materials which contain asbestos is prohibited for all ships.
In the context of MSC.1/Circ.1379, new installation of materials containing asbestos means any new
physical installation on board. Any material purchased prior to 1 January 2011 being kept in the ship’s
store or in the shipyard for a ship under construction/alteration shall not be permitted to be installed after
1 January 2011 as a working part.
It means that materials used (i.e. repaired, replaced, maintained or added) as insulating materials,
structural materials with insulation, as well as fire-fighting equipment, specified in 2.1.2.1.1 and 5.1.1.9,
respectively, installed on or after 1 July 2012, will be required to be documented with an asbestos-free
declaration.
This does not preclude the stowage of material which contains asbestos on board (e.g. spare parts
existing on board as of 1 July 2012).
The phrase „is not permitted to be installed after 1 January 2011 as a working part” in
MSC.1/Circ.1379 means that replacement, maintenance or addition of materials used as insulating
materials, structural materials with insulation, as well as fire-fighting equipment, specified in 2.1.2.1.1
and 5.1.1.9, respectively, which contain asbestos is prohibited.
List of IMO documents referred to in Part V of the Rules
217
List of IMO documents referred to in Part V of the Rules
IMO Assembly Resolutions
1. A.567(14) and Corr.1:: Regulation for Inert Gas Systems on Chemical Tankers.
2. A.654(16): Graphical Symbols for Fire Control Plans.
3. A.752(18): Guidelines for the Evaluation, Testing and Application of Low-Location Lighting on
Passenger Ships.
4. A.753(18): Guidelines for the Application of Plastic Pipes on Ships.
5. A.756(18): Guidelines on the Information to be Provided with Fire Control Plans and Booklets
Required by SOLAS Regulations II-2/20 and 41-2.
6. A.951(23): Improved Guidelines for Marine Portable Fire Extinguishers.
7. A.952(23): Graphical Symbols for Shipboard Fire Control Plans.
8. A.1021(26): Code on Alerts and Indicators.
MSC/MEPC Resolutions
1. MSC.285(86): Interim Guidelines on Safety for Natural Gas-fuelled Engine Installations in Ships.
2. MSC.313(88): Amendments to the Guidelines for the Application of Plastic Pipes on Ships.
3. MEPC.197(62): 2011 Guidelines for the Development of the Inventory of Hazardous Materials.
MSC Circulars
1. MSC/Circ.353: Revised Guidelines for Inert Gas Systems.
2. MSC/Circ.387: Revised Guidelines for Inert Gas Systems. (MSC/Circ.353).
3. MSC/Circ.450/Rev.1: Revised factors to be taken into consideration when designing cargo tanks
venting and gas-freeing arrangements.
4. MSC/Circ. 451: Guidance concerning the location of fire control plans for the assistance of the shore
side fire-fighting personnel.
5. MSC/Circ.553: Information on flashpoint and recommended fire-fighting media for chemicals to
which neither the IBC nor BCH Codes apply.
6. MSC/Circ.670: Guidelines for the performance and testing criteria and surveys of high-expansion
foam concentrates for fixed fire-extinguishing systems.
7. MSC/Circ.677: Revised standards for the design, testing and locating of devices to prevent the
passage of flame into cargo tanks in tankers (as amended by MSC/Circ. 1009).
8. MSC/Circ.732: Interim guidelines on the test procedure for demonstrating the equivalence of
composite materials to steel under the provisions of the 1974 SOLAS Convention.
9. MSC/Circ: 735: Recommendation on the design and operation of passenger ships to respond to
elderly and disabled persons’ needs.
10. MSC/Circ. 798: Guidelines for performance and testing criteria and surveys of medium-expansion
foam concentrate for fixed fire-extinguishing systems.
11. MSC/Circ.849: Guidelines for the performance, location, use and care of emergency escape
breathing devices (EEBDs).
12. MSC/Circ.895: Recommendation on helicopter landing areas in ro-ro passenger ships.
13. MSC/Circ.917/Corr.1: Guidelines on fire safety construction in accommodation areas.
14. MSC/Circ.1002/Corr.1: Guidelines on alternative design and arrangements for fire safety.
15. MSC/Circ.1003: Guidelines on a simplified calculation for the total amount of combustible materials
per unit area in accommodation and service spaces.
16. MSC/Circ.1009: Amendments to the revised standards for the design, testing and locating of devices
to prevent the passage of flame into cargo tanks in tankers (MSC/Circ.677).
17. MSC/Circ.1070: Ship design, construction, repair and maintenance – Guidelines for the survey of
repairs.
18. MSC/Circ.1086: Code of practice for atmospheric oil mist detectors.
19. MSC/Circ.1120: Unified interpretations of SOLAS Chapter II-2, the FSS Code, the FTP Code and
related fire test procedures.
218
Fire Protection
20. MSC/Circ.1129: Guidance on the establishment of medical and sanitation related to programmes for
passenger ships.
21. MSC/Circ.1167: Functional requirements and performance standards for the assessment of
evaluation guidance systems.
22. MSC/Circ.1168: Interim guidelines for the testing, approval and maintenance of evacuation guidance
systems used as an alternative to the low-location lighting systems.
23. MSC.1/Circ.1238: Guidelines for evacuation analysis for new and existing passenger ships.
24. MSC.1/Circ.1239: Unified interpretations of SOLAS Chapter II-2.
25. MSC.1/Circ.1242: Guidelines for the approval of fixed fire detection and fire alarm systems for
cabin balconies.
26. MSC.1/Circ.1266: Carriage of dangerous goods.
27. MSC.1/Circ.1274: Guidelines for evaluation of fire risk of external areas on passenger ships.
28. MSC.1/Circ.1275: Unified interpretation of SOLAS Chapter II-2 on the number and arrangement of
portable fire extinguishers on board ships
29. MSC.1/Circ.1276: Unified interpretations of SOLAS Chapter II-2.
30. MSC.1/Circ.1312/Corr.1: Revised guidelines for the performance and testing criteria, and surveys of
foam concentrates for fixed-fire-extinguishing systems.
31. MSC.1/Circ.1318: Guidelines for the maintenance and inspections of fixed carbon dioxide fireextinguishing systems.
32. MSC.1/Circ.1321: Guidelines for measures to prevent fires in engine-rooms and cargo pump-rooms.
33. MSC.1/Circ.1324: Amendments to the revised standards for the design, testing and location of
devices to prevent the passage of flame into cargo tanks in tankers (MSC/Circ.677, as amended by
MSC/Circ.1009).
34. MSC.1/Circ.1368: Interim clarifications of SOLAS Chapter II-2 requirements regarding interrelation
between the central control station, navigation bridge and safety centre.
35. MSC.1/Circ.1369: Interim explanatory notes for the assessment of passenger ship systems’
capabilities after a fire or flooding casualty.
36. MSC.1/Circ:1370: Guidelines for the design, construction and testing of fixed hydrocarbon gas
detection systems.
37. MSC.1/Circ.1374: Information on prohibiting the use of asbestos on board the ships.
38. MSC.1/Circ.1384: Guidelines for the testing and approval of fixed high-expansion foam systems.
39. MSC.1/Circ.1388: Unified interpretation of Chapter 12 of the International Code for Fire Safety
Systems.
40. MSC.1/Circ.1395: List of solid bulk cargoes for which a fixed gas fire-extinguishing system may be
exempted or for which a fixed gas fire-extinguishing system is ineffective.
41. MSC.1/Circ.1417: Guidelines for Passenger Ship Tenders.
42. MSC.1/Circ.1431: Guidelines for the approval of helicopter facility foam fire fighting appliance.
43. MSC.1/Circ.1432: Revised guidelines for the maintenance and inspection of fire protection systems
and appliances.
44. MSC.1/Circ. 1435: Unified interpretations of the FTP Code.
45. MSC.1/Circ.1436: Amendments to the unified interpretations of SOLAS Chapter II-2, the FSS Code,
the FTP Code and related fire test procedures (MSC/Circ.1120).
46. MSC.1/Circ.1437: Unified interpretations of SOLAS Regulation II-2/21.4;
47. MSC.1/Circ.1471: Recommendation on safety measures for existing vehicle carriers carrying motor
vehicles with compressed hydrogen or natural gas in their tanks for their own propulsion as cargo;
48. MSC.1/Circ.1472 Guidelines for the design, performance, testing and approval of mobile water
monitors used for the protection of on-deck cargo areas of ships designed and constructed to carry
five or more tiers of containers on or above the weather deck.
219
List of IMO documents referred to in Part V of the Rules
Listing of changes effective on the 1 January 2015
Item
Title/Subject
Source
Definition of „fire damper” has been changed and definitions of
“smoke damper” and „vehicle carrier” has been added
SOLAS, Res. MSC.365(93)
1.2.64
In definition of „machinery spaces” a term „hydraulic power
packs” has been added
–
1.3.3
A new item 53 (foam fire-extinguishing system for the helideck)
has been added in the list of machinery subject to certification for
compliance with Council Directive 96/98/EC
Directive 2013/52/EU
1.3.5
Item .4 has been deleted
Directive 2013/52/EU
1.3.5
Item 30 „mobile water monitors for use in containerships” has
been added in the list of PRS type approved machinery
SOLAS, Res. MSC.365(93)
A requirement concerning escape means on cargo ships has been
added
SOLAS, Res, MSC.365(93).
A new, supplemented text
SOLAS, Res, MSC.365(93).
Requirements for containerships carrying 5 and more tiers of
containers on weather deck have been added
SOLAS, Res, MSC.365(93).
A requirement of checking the actual capacity of emergency fire
pump after installation onboard ship has been added.
Res. A.1076(28).
A restriction for containerships has been added
SOLAS, Res, MSC.365(93).
3.5.3.1.21
A requirement for operating manual of high-expansion foam fireextinguishing system has been added
Conclusions from
investigations of fire onboard
the ship OSKAR WILDE
3.5.3.2.1.2
A requirement concerning determining the volumetric capacity
of machinery space with casing for the calculation of quantity of
foam-forming agent has been made more precise
IACS SC 262
Interpretation of requirements concerning CO2 control,
(exception of conventional cargo spaces)
IACS SC 132/Rev.4
3.6.7
The subchapter containing requirements for local CO2 system has
been deleted. The requirements are given in ISO 15371 Standard
SOLAS, res, MSC.365(93).
3.9.2.6
A requirement concerning necessity of application of alcohol
resistant foam concentrates when carrying biofuel blends
containing more than 5 per cent of ethyl alcohol, has been added
MEPC.1/ Circ.761/Rev.1.
3.10
The subchapter concerning inert gas system gets a new reading in
accordance with amendments to FSS Code
Res. MSC.367(93)
3.10.5
A subchapter containing requirements for constant operating
inerting system (COIS) has been added
Rec. IACS No. 131
5.1.4.7
A new paragraph containing requirement of possession by the
ship of spare cylinders for breathing apparatus to be used during
fire drills has been added
SOLAS Res, MSC.338(91).
5.1.4.8
A requirement has been added concerning provision of each ship
subject to SOLAS Convention with two two-way portable
radiotelephone apparatus
MSC.338(91)
1.2.23, .24
i .25
2.3.3.4, .5
and.6
2.7.1
3.2.1.5
3.2.4.2.3
3.2.5.1
3.6.4.2.2
Fire integrity values of fire divisions have been changed
tables 6.1.5-1
and 6.1.5-2
SOLAS, Res. MSC.338(91)
220
Fire Protection
Item
Title/Subject
Source
A requirement concerning provision of two means of escape
from the main workshop within a machinery space, on cargo
ships, has been added
SOLAS, res, MSC.365(93).
6.1.17.2
A requirement concerning exhaust ventilation ducts from galley
range on cargo ships, has been changed h
SOLAS, Res, MSC.365(93).
6.1.22
The term „laundry” has been supplemented by „drying rooms”,
information on category of spaces has been added
SOLAS, Res. MSC.365(93).
6.3.4.2
The requirement concerning application of inert gas system has
been changed in accordance with amendments to SOLAS
Convention
SOLAS, Res. MSC.365(93).
6.3.4.3.4
The requirement has been made more precise, by giving
interpretation of tanks/compartments for which the hydrocarbon
gas detection system is required
IACS SC 268
6.3.4.3.5
The requirement concerning provision of tankers with
hydrocarbon gas detection system has been changed taking into
account application of constant operating inerting system (COIS)
IACS SC 131
6.6.3
Requirements for tugs serving LNG gas carriers have been added
6.1.6.11.5
6.8.2 i 6.8.3
6.12.5
6.12.5.2 to
6.12.5.7
6.23
List of
documents
Subchapters have been added introducing requirements
concerning fire protection of containerships for the carriage of
containers on or above the weather deck
SOLAS, Res. MSC.365(93).
Requirements for inert gas system on chemical tankers have been
added
SOLAS, Res. MSC.365(93).
Deleted. The requirement is specified in 3.10
IACS UR F20
Requirements for vehicle carriers have been added
SOLAS, Res. MSC.365(93).
MSC.1/Circ.1275, MSC.1/Circ.1471 i MSC.1/Circ.1472 have
been added
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