dikshit consultants & engg - The New India Assurance Co. Ltd.

dikshit consultants & engg - The New India Assurance Co. Ltd.
New India Assurance
Page 1
New India Assurance
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Tender Notice
The New India Assurance Co. Ltd.
Mumbai Regional Office- II
Tenders are invited from (Technical & Price Bids)
From firms/contractors for
Modification & installation of the
Air conditioning systems at
Our RO,DO & BO Offices at 2nd floor, Jeevan Seva,
S.V.Road, Santacruz (W) Mumbai. 400054.
Project cost INR 105 lacs
Interested firms/ Contractors having experience
In above works may submit their bids.
Details are available on our website
www.newindia.co.in
Last date of submission of bids is 14 July 2015, 2.00 PM
to be submitted at above Mumbai Regional Office- II.
DY. GENERAL MANAGER
MUMBAI REGIONAL OFFICE- II
New India Assurance
Page 3
Terms & Conditions
1.
The blank tender forms will be available with the Estate Department, The New
India Assurance Co. Ltd. Jeevanseva Building, S.V Road, Santacruze (west),
Mumbai-400054 For a payment of Rs. 1500/- or can be down loaded from our
Website, www.newindia.co.in. Those who down load tender from website will
attach separate DD / Pay order of same amount with technical document tender
submitted.
2.
Tenders shall be submitted in 2 Bids System. Technical Bids papers are
attached herewith as Annexure “A” and “B” and Price bid as Annexure “C”
3.
The tender should be sealed with superscripting “modification & installation
of Air Conditioning system at NIA’s MRO-II Santacruz, Office.”
4.
The bidders are requested to inspect the site and get acquainted with the
working conditions before quoting.
5.
Price bid of only technically qualified bidders will be opened in MRO –II office.
6.
The bidders should fill the tender in the same manner as specified.
7.
The Company reserves the right to reject any or all tenders without assigning
any reason.
8.
Pay Order/ DD of amount of Rs.2.2 lacs (2% of the Project Cost) as a EMD
(Earnest Money Deposit) should be submitted with the technical bid.
9.
The E.M.D. shall be in form of D.D./ Pay order of any nationalized Bank in
favour of “The New India Assurance Co. Ltd.”
10.
On awarding contract to successful bidder EMD will be converted as back up
guarantee for faithful execution of contract and for other vendors it will be
returned in due course of time.
11.
Terms of payment:
a.
Mobilization advance up to maximum of 15% will be given against bank
guarantee valid for 9 months from award of contract. (Format to be
obtained by the vendor from The New India Assurance Co. Ltd. office
after award of contract)
b.
Progressive payment of the contract for supply and installation of HVAC
and electrical, false ceiling system shall be released against total three
bills to be raised as per agreed billing schedule which can be specified in
tender offer
New India Assurance
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2.
The work is to be carried out to the entire satisfaction of the Company &
Company’s Consultant M/s Refricon Magic System Pvt. Ltd.
3.
Technical Bid envelope should be with all the relevant documents mentioned in
Annexure “A” & “B” and with DD/ Pay Order.
12.
Tenders shall be submitted in 2 Bids System i.e. Technical Bids & Price Bids in
two separate envelopes super scribing on the envelopes “Technical Bid” &
“Price Bid”. Then these two separate envelopes should be put inside a third
envelope, which should be sealed and superscribed as “modification &
installation of Air Conditioning system at NIA’s MRO-II Santacruz, Office.”
13.
Pre-bid meeting will be held on 7th July At 11.30 am in MRO–II office
14.
The selected bidder should complete the job inclusive of commissioning and
system handing over within five month from the date of LOI / Work Order.
15.
The bidder having disputes/ legal cases/ arbitrations with the Company or any
other PSU would not be considered.
16.
The sealed Tenders should reach the Chief Manager, Estate & Establishment
Department, The new India assurance Co. Ltd. Jeevanseva Building, S.V Road,
and Santacruze (west), Mumbai-400054 on or before 14th July 2015. Before
14.00 hr. & same should be dropped in the tender box kept at the said address.
17.
Bidders should have manufacturing facility for at least fifty percentage value of
the equipments covers under scope of supply of tender Document or should be
endorsed by manufacture as their authorized dealer / representative for onward
post sales services.
18.
Final cost quoted by the bidder shall be inclusive of the Taxes and duties
applicable and installation cost. Bidder is at liberty to verify BOQ in
tender to actual work and no extra payment will be entertained to
complete project whatsoever and on time.
19.
Tender shall be evaluated based on the efficiency quoted by the bidder as per
ARI specification for full load for VRF system
20.
Tender shall submit the technical literature /Leaflets for major energy
consuming equipments like VRF system as well as type / models cassettes
proposed ,COP along the technical Bid of the tender & all technical document
to be attached with the tender
(Agreed the above terms & Conditions)
Date:
Signature of the Bidder
With Company’s Seal
New India Assurance
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Annexure “A”
Pre-qualification criteria are as under; the bidder should submit adequate proof for the
following:
1) Valid Authorization from local authorities of prime equipment manufacturer
2) Should have successfully completed at least two similar work of costing not less than
the amount equal to 80% of estimated Tender cost value i.e. INR 105 lacs with VRF
system for high end office premises in and around Mumbai
Bidder shall Submit copies of the work-order/ certificates from the clients.
5) Annual financial turnover during the last 3 years ending 31st March of the previous
financial year should be at least 50 % of the estimated cost i.e. INR 105 lacs.
6) Should have emergency service (24X7). Bidder should have a full scale service
centre back up in Mumbai City. Give the contact nos. and address.
8) The sealed Tenders should reach the Chief Manager, Estate & Establishment
Department, The new India assurance Co. Ltd. Jeevanseva Building, S.V Road, and
Santacruze (west), Mumbai-400054 on or before 14 th July 2015 Before 14.00 hrs.
and same should be dropped in the tender box kept at the above said address.
Date:
Signature of the Bidder
With Company’s Seal
New India Assurance
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Annexure “B”
No
SCHEDULE – A
DETAILS ABOUT THE FIRM /
ORGANISATION / COMPANY.
1
2
Name of the Company / Firm / Contractor
Permanent Address
:
3
4
5
6
Telephone
:
Fax No.
:
Mobile no
Description of the Company / Firm
(Proprietary / Partnership etc. )
7
8
Year of Establishment
Number of years of experience as a contractor (
In HVAC installation)
9
Name & Address of Partner/s
( Please state of changes, if any, in partnership
since the inception )
Details about Company structure.
Enclosure no.1
(Mention names, addresses, positions etc. of all (Service Organization Chart to be provided)
key persons in the organization)
Bio – Data of Partners
Enclosure No 2
10
11
12
Details of the technical staff with their
qualification & experiences.
Enclosure/s No 3
13
Details of Registration
Enclosure No 4
14
Name & Address of Banker :
Enclosure/s No 5
15
List of equipment to be deployed in the works
with respective details.
Enclosure/s No 6
16
Details about any litigation / Arbitration
proceedings taken up with present / previous
clients / departments or any Government
bodies.
List of other Empanelment PSU / Corporate
17
18
19
Enclosure/s No 7
Balance sheet / Profit & Loss Statement for the Enclosure No 8
last 3 years.
( to be attached herewith )
Valid Income tax Clearance Certificate
Enclosure/s No 9
( to be attached along with )
New India Assurance
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20
21
PAN NO
Sales Tax No
Enclosure/s No 10
Enclosure/s No 11
22
Certificates of Works Completed from previous Enclosure/s No 12
clients.
( Certificates should be of works that are
successfully completed in last 3 years )
23
Has the applicant or any of his partner or
previous firm been blacklisted or removed /
demoted etc. from approved list of contractors
by any organization.
(Kindly answer Yes or No. If yes then give
details)
24
Any other additional information relevant to the evaluation of their pre-qualification
Note 1 : The bid will be liable for rejection / disqualification if found having given false information at
any stage of selection / execution of work etc.
2. Company reserves the right to reject any bidder without stating any reasons
Date:
Signature of the Bidder
With Company’s Seal
New India Assurance
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Mechanical, Electrical and
Public Health Systems Consulting Services
ANNEXURE- “C”
HVAC TENDER
(Technical Bid, BOQ & Price bid )
Project: New India Assurance
New India Assurance
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I N DE X
SR.
NO.
DESCRIPTIONS
PAGE NO.
1.
HVAC TECHNICAL SPECIFICATIONS
9
2.
CODE & STANDARD
23-26
3.
INFORMATION TO BE FILLED
27-30
4.
LIST OF MAKE
30-30
5.
DEVIATION STATEMENT
31-32
6.
HVAC BOQ
32-42
7.
ELECTRICAL GENERAL TECHNICAL SPEC
43-92
8.
ELECTRICAL BOQ
93-105
9.
GENERAL SPECIFICATION FOR FALS CEILING
106-138
10.
CEILING BOQ
139-140
11.
REFERANCE DRAWING
141-146
New India Assurance
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1.0
TECHNICAL SPECIFICATION OF EQUIPMENT
1.1
Variable Refrigerant Flow System.
The system selected is a modular system, with number of indoors connected to
centrally located outdoor units, as per detail designing given in the tender. The
outdoor units for all the system shall be air cooled type and mounted on terrace of
the building. Indoor units in various areas shall be as per enclosed drawings/ Bill
of Quantities.
All the VRV air conditioners shall be fully factory assembled, wired, internally
piped & tested. The outdoor unit shall be precharged with first charge of R 410A.
Additional charge shall be added as per refrigerant piping at site. All the units shall
be suitable for operation with 415 V + 10%, 50 Hz + 3%, 3 Phase supply for
outdoor units & 220 V + 10%, 50 Hz + 3%, 1 Phase supply for in door units.
The VRV system shall provide stable, trouble free & safe operation, with flexibility
of operating desired indoor units. The outdoor units must be capable of delivering
exact capacity proportional to the number of indoor units switched on & the heat
load in the air conditioned area. The proportional operation shall be achieved by
varying speed of the compressor in the outdoor units.
The operation of the VRV system shall be through independent wired/ wireless
remote controllers as specified. The entire system shall be integrated with
intelligent building management system of leading vendors like Honeywell/
Johnson Controls/ Staefa etc, through BAC Net Gateway. The detailing of
operation required through BMS system are detailed under specifications of BMS
system.
1.1.1
Outdoor units.
Outdoors units of the VRV system shall be compact air cooled type.
All the compressors of the outdoor units must be hermetically sealed scroll type.
Each module of outdoor unit must have separate 1# inverter compressor, suitable
to operate at heat load proportional to indoor requirement.
”Coated PE Fins (with special acryl pre-treatment) “for Al fins of Condenser Coils
is mandatory for increased durability to salt corrosion.
The outdoor units must be suitable for up to 150 m (straight length) refrigerant
piping between outdoor unit & the farthest indoor units, total piping of 510 m for all
the indoor units. Allowable level difference between outdoor unit & indoor units
shall be 50 m in case of outdoor unit on top & 40 m in case of outdoor unit at
bottom. Allowable level difference between various indoor units connected to one
out door unit shall be up to 15 m.
Back up operation, in case of failure of one of the compressors of out door unit,
for single module outdoor units or failure of one of the modules in case of multiple
New India Assurance
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module outdoor units shall be possible. The VRV outdoor unit shall always be
supplying at least 33% of back up operation, of the full load capacity.
The outdoor unit shall employ system of equal run time for all the compressors,
inverter or on/ off type, within each out door unit – Single Module or Multi Module.
The outdoor units shall be suitable to operate within an ambient temperature
range of – 5 Deg C to 43 Deg C, in cooling mode & -20 Deg C to 15 Deg C in
heating mode.
Air cooled condenser shall have Axial Flow, upward throw fan, directly coupled to
fan motors with minimum IP 55 protection. The outdoor unit condenser fan shall
be able to develop external static pressure up to 6 mm of H2O.
The entire operation of outdoor units shall be through independent remotes of
indoor units. No separate Start/ Stop function shall be required.
Starter for the Outdoor Unit compressor shall “Direct on Line” type. Inverter
compressor of the unit shall start first & at the minimum frequency, to reduce the
inrush current during starting.
Refrigerant control in the outdoor unit shall be through Electronic Expansion
Valve. Complete refrigerant circuit, oil balancing/ equalizing circuit shall be factory
assembled & tested.
Noise level of outdoor units shall not exceed 60 dB (A) at a distance of 1.5 m from
he unit.
The outdoor units shall confirm to Technological Guideline for Harmonic
Suppression – JAEG 9702-1995. High Harmonic Environmental Target Level for
Power Distribution system shall be 5%.





Outdoor units shall be complete with following safety devices:
Overhead canopy above the condensing unit to avoid direct sun rays
Preferably equipped with evaporative pre-cooling system installed with controlled
water spray for air flowing over the condenser.
High pressure switch
Fan driver overload protector
Over current relay
Inverter Overload Protector
Fusible Plug




Unit shall be supplied with
Installation manual
Operation Manual
Connection Pipes
Clamps


New India Assurance
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1.1.2
Indoor Units
1.1.2.1 Cassette type indoor units.
These units shall be installed between the bottom of finished slab & top of false
ceiling. The maximum allowable height for the cassette type units shall be 300
mm.
The unit must have in built drain pump, suitable for vertical lift of 750 mm.
The unit casing shall be Galvanized Steel Plate.
Unit must be insulated with sound absorbing thermal insulation material,
Polyurethane foam. The noise level of unit at the highest operating level shall not
exceed 42 dB(A), at a vertical distance of 1.5 m from the grille of the unit.
Unit shall have provision of connecting fresh air without any special chamber &
without increasing the total height of the unit (288 mm maximum).
The unit shall be supplied with suitable decorative panel.
The unit shall be supplied with Resin Net filter with Mold Resistance. The filter
shall be easy to remove, clean & re install.
The unit will be connected in series to a suitable outdoor unit & it must be possible
to operate the unit independently, through corded/ cordless remote specified in
the “Bill of quantities”. The unit will be further connected to Intelligent Building
Management System (To be supplied by other vendors) & it shall be possible to
operate the unit through this IBMS system.
1.1.2.2 Ceiling Mounted duct type units.
These units shall be ceiling suspended with suitable supports to take care of
operating weight of the unit, without causing any excessive vibration & noise. The
cold air supplied by these units will be supplied to the area to be air conditioned,
through duct system specified in the tender.
Each indoor unit must have electronic expansion valve operated by
microprocessor thermostat based temperature control to deliver cooling/ heating
as per the heat load of the room.
The unit casing shall be Galvanized Steel Plate.
Unit must be insulated with sound absorbing thermal insulation material, Glass
Fiber. The noise level of unit at the highest operating level shall not exceed 49 dB
(A), at a vertical distance of 1.5 m below the units with duct connected to the unit.
The unit must be able to develop external static pressure of 25 mm, at the
specified air quantities.
Unit must have Thermal Fuse for fan motor protection, in case of motor heating.
New India Assurance
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The unit will be connected in series to a suitable outdoor unit & it must be possible
to operate the unit independently, through corded/ cordless remote specified in
the bill of quantities. The unit will be further connected to Intelligent Building
Management System (To be supplied by other vendors) & it shall be possible to
operate the unit through this IBMS system.
1.1.2.3 Wall Mounted Units.
Wall mounted units must be compact & stylish design that does not detract from
the décor of the room.
Each indoor unit must have electronic expansion valve operated by
microprocessor thermostat based temperature control to deliver cooling/ heating
as per the heat load of the room.
The unit must have provision of adding drain pump kit if required & specified. The
drain pump must be suitable to lift drain up to 1000 mm from the bottom of the
unit.
Unit must be insulated with sound absorbing thermal insulation material,
Polystyrene/Polyethylene foam. The noise level of unit at the highest operating
level shall not exceed 46 dB (A), at a vertical distance of 1.5 m from the grille of
the unit.
The unit shall be supplied with Resin Net filter with Mold Resistance. The filter
shall be easy to remove, clean & re install.
The unit grille must be washable with soap solution.
It shall be possible to set minimum 5 steps of discharge angle by remote
controller.
It shall be possible to fit drain pipe from either side of the unit (Left or right)
The unit will be connected in series to a suitable outdoor unit & it must be possible
to operate the unit independently, through corded/ cordless remote specified in
the bill of quantities. The unit will be further connected to Intelligent Building
Management System (To be supplied by other vendors) & it shall be possible to
operate the unit through this IBMS system.
1.1.2.4 Ceiling mounted Built – In type.
These units shall be ceiling suspended with suitable supports to take care of
operating weight of the unit, without causing any excessive vibration & noise. The
cold air supplied by these units will be supplied to the area to be air conditioned
directly through duct collar & grille or, through duct system specified in the tender.
New India Assurance
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Each indoor unit must have electronic expansion valve operated by
microprocessor thermostat based temperature control to deliver cooling/ heating
as per the heat load of the room.
The unit casing shall be Galvanized Steel Plate.
Unit must be insulated with sound absorbing thermal insulation material, Glass
Fiber. The noise level of unit at the highest operating level shall not exceed 48
dB(A), at a vertical distance of 1.5 m below the units with duct connected to the
unit.
The unit must have provision to set external static pressure in three stages from
max 10 mm to min 2 mm, depending on the air supply system.
The unit must include as standard equipment, maintenance free long-life filter,
resin net with mold resistant.
The unit must include as standard equipment, a drain pump kit suitable to lift drain
water up to 250 mm from the drain pipe opening.
Unit must have Thermal Fuse for fan motor protection, in case of motor heating.
The unit will be connected in series to a suitable outdoor unit & it must be possible
to operate the unit independently, through corded/ cordless remote specified in
the bill of quantities. The unit will be further connected to Intelligent Building
Management System (To be supplied by other vendors) & it shall be possible to
operate the unit through this IBMS system.
1.1.3
REFRIGERANT PIPING
The indoor and outdoor units shall be connected with refrigerant piping. All piping
connections for the units should be performed inside the unit. The refrigerant
piping should be insulated with Nitrile foam of minimum 19 MM thick with glass
cloth material. All refrigerant piping to be done with hard copper pipes only.
1.1.4
DRAIN PIPING
Condensate from the evaporator unit shall be drained through properly installed
drain piping designed to prevent any accumulation of condensate in the drain
pan. Drain piping of specified sizes and suitable of 8 Kg/Sq cm. pressure rating
with water tight threaded connections, leading from the room unit to a suitable
drain point. Complete drain piping shall be made leak proof and water tight by
means of precise installation and the use of leak proof sealant/adhesives. Drain
piping shall be insulated with 6 mm Nitrile foam.
1.1.5
Controls System
1.1.5.1 Wired Remote Controller.
Wired remote controller shall be supplied as specified in the “Bill of Quantities”
New India Assurance
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The controller must have large crystal display screen, which displays complete
operating status.
The digital display must allow setting of temperature with 1 Deg C interval.
Remote shall be able to individually program by timer the respective times for
operation start and stop within a maximum of 72 hours
Remote must be equipped with thermostat sensor in the remote controller that will
make possible more comfortable room temperature control
The remote shall be able to monitor room temperature & preset temperature by
microcomputer & can select cool/ heat operation mode automatically.
The remote must constantly monitor malfunctions in the system & must be
equipped with a “self diagnosis function” that let know by a message immediately
when a malfunction occurs.
It shall be possible to wire the remote up to 500 RMT.
1.1.5.2 Wireless Remote Controller.
Wireless remote controller shall be supplied as specified in the “Bill of Quantities”
The same operation modes & settings as with wired remote controllers must be
possible.
Compact light receiving unit to be mounted into wall or ceiling shall be included.
1.1.6
CONTROLS AND INTERLOCKING:
Electrically / electronically operated controls shall be provided with all components,
auxiliary relays, capacitors including wiring for controls and interlocking.
1.7
DEDICATED OUTDOOR AIR SUPPLY SYSTEM
The DOAS units shall be two stream units in double skin construction, comprising
of supply air section, return air section and Heat Recovery Section. The supply air
section shall include the following sections as defined in the Bill Of Quantities:
Fresh Air Inlet Damper, G3 pre-filter, 3ºA Molecular Sieve Desiccant Coated
Enthalpy Wheel, Cooling Coil Section, Inspection Section, Sensible Heat
Recovery Wheel, Fan section comprising Supply Air fan and motor.
The Return Air section shall include the following sections : Return Air inlet
damper, G3 pre-filter, Sensible Heat Recovery Wheel, Enthalpy Wheel, Fan
section comprising of Exhaust Fan with motor. Option shall be available for Digital
Air Flow Measurement, Pressure Transmitter and Filter Cleaning.
New India Assurance
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1.7.1
CASING
The units shall be made of extruded Aluminium hollow profile frames. The profile
box size shall be of minimum 30 mm, such that it provides the required
mechanical strength and rigidity. The unit should be devoid of any welded
construction and should be of cabinet type. All the frames should be assembled
using pressure die cast aluminium joints/corners to make a self-supporting frame.
The Casing leakage shall be in accordance with relevant EUROVENT standard
that is CLASS B.
The panels shall be of double skin construction with both inner and outer steel
sheets minimum 0.8mm thick pre coated & plasticized. 25 mm thick fire retardant
fibre glass insulation shall be sandwiched between the sheets. The fibre glass
density shall be 48 kg/m3.
The Inspection and access panels shall be hinged type. The hinges shall be
casted, powder coated Zinc alloy. Flushed Locks and Handles shall be of
galvanized steel. Other panels will be screwed on to the frame with sealant and
soft rubber gasket thus making the joints air tight. All screws used for panel fixing
shall be covered with PVC caps.
Special hollow gaskets and seals shall be used on inspection doors and to create
separation between the airstreams to ensure negligible air leakage and mixing
The entire casing shall be mounted on electro galvanized channel frame work with level
screws. Condensate drain pan shall be fabricated from 18 g GSS/SS construction.
1.7.2
SUPPLY AIR SECTION
The supply air section shall comprise of the following:
1.7.3
FAN SECTION
The fan shall be centrifugal forward curved or backward curved, double inlet
double width type. The impeller and the fan casing shall be made of hot
galvanized sheet steel. The impeller shall be mounted on a solid shaft supported
to housing with angle iron frame and pillow block heavy duty ball bearing. The
impeller shall be statically and dynamically balanced. The fan shall be selected
such that unit noise level is less than 85 db. Fan housing and motor shall be
mounted on a common galvanized steel or aluminium block base which can be
drawn out from side for ease of maintenance. A quarter pin lock arrangement
between the slide and guide pin lock arrangement between Fan and TFA outlet
should be provided.
New India Assurance
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1.7.4
MOTOR AND DRIVE
Fan motor shall be energy efficient and suitable for 41510% volts, 50 cycles, 3
phase squirrel cage, totally enclosed fan cooled with IP – 55 Protection. Motor
shall be designed for quiet Operation. Drive shall be provided through belt – drive
arrangement. Belts will be of oil resistant type.
1.7.5 FILTER SECTION
The filter section shall be normally designed for deep folded disposable synthetic
prefilters for Class EU3.The filter elements shall be mounted on rails and shall be
easily pulled out for replacement. The rails shall be provided with efficient gaskets
to minimize the risk of leakage.
1.7.6
DAMPER SECTION
Damper section shall contain a built in damper of aluminium profile with leakage
class III. The damper blades shall be connected with plastic gear wheels with a
gasket of silicon rubber to produce tightness between the blades.
1.7.7
COOLING COIL SECTION
The cooling coil shall be 8 rows deep with drain pan made out of 18G Gss/SS.
1.7.8
INSPECTION SECTION
The Inspection section shall be for inspection of other functional sections.
1.7.9
RETURN AIR SECTION
The return air section shall comprise of above sections. The specification for this
section shall remain same as defined in 5.1, 5.2 & 5.3
1.4
RECOMMENDATIONS FOR PRESSURE TESTING:
Refrigerant pipes carry refrigerant at pressures different from atmospheric
pressure. When pressure inside pipes is more than atmospheric pressure,
refrigerant may escape to the atmosphere, causing commercial loss due to loss of
refrigerant, inefficient system performance or even system breakdown and
contamination of surroundings. When pressure inside the pipes is less than
atmospheric pressure, such as in case of suction pipes of some low temperature
refrigeration machines, or during pump-down cycle of normal air-conditioning
systems, leakages in pipes leads to ingrate of air and moisture, causing severe
system damage. Therefore, it is a must that the refrigerant piping is thoroughly
tested for leakages.
Pressure testing for any piping must be carried out at a pressure higher than the
maximum operating pressure within the system. It is recommended that the
pressure recommended by manufacturer be followed very strictly. Testing at lower
pressures may lead to non-detection of some small leakages, while testing at
higher pressures may lead to damage to some factory manufactured components
within the system.
New India Assurance
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Generally, for R-410 A systems a pressure of around 600 psig
Nitrogen is the most common gas used for carrying out pressure testing. It has
numerous advantages, some of which are listed below:
1. Nitrogen is easily available as a commercial gas packed in easy to handle cylinders.
2. Nitrogen, being the most abundant component of the atmosphere, is safe for leaking
out without contaminating the atmosphere.
3. Nitrogen is less costly as compared with other gases.
4. Nitrogen is safe for handling and testing.
5. Nitrogen does not readily react with system components
Pressure gauge/s used for testing must be calibrated and a calibration certificate
with traceability to a Government (National) Physical Laboratory must be
documented. The gauge should be capable of measuring pressure at least 10%
above the reading to be recorded.
PROCEDURE FOR CARRYING OUT PRESSURE TEST
1) Ensure that the piping to be tested is properly secured / supported and the
openings have been sealed off as per manufacturer’s recommendation.
2) Install pressure gauge/s at strategic location/s where it shall not be tampered
with, at the same time, should be easily visible.
3) Install a valve and connecting tubing so that the open end of the tube reaches
the cylinder outlet without moving the cylinder.
4) Connect the tube to the cylinder and after ensuring proper connection, crack
open the cylinder valve, keeping an eye on the pressure gauge. Let the
pressure rise to around 10 psig.
5) Check for proper sealing of all flanged / flare nut joints or valves / valve glands
looking for noise of escaping Nitrogen and seal same.
6) Open the cylinder valve again and raise the pressure to 200 psig.
7) Check the pipeline for major leakages at brazed joints, elbows, valve glands,
equipment end connections and pipe seams with the help of soap water.
Make up the leaks by tightening nuts. If the leaks are in brazed joints, flush
out Nitrogen and carry out necessary re-brazing.
8) Open the cylinder valve again and increase the pressure to 150 psig less than
the final test pressure. Repeat leak check as above.
New India Assurance
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9) Open the cylinder valve again and slowly raise the pressure to the
manufacturer recommended pressure. Carry out a thorough leak check.
10)
Record the pressure and time. Let the pressure stand for 24 hours without
tampering. Check the pressure again after 24 hours. If pressure has
dropped, the piping should be checked very thoroughly for minor leakages.
It is important to follow this 24 hours period as it gives enough time to
detect minute leakages, and it removes the doubt created by thermal
expansion of Nitrogen ( as after exact 24 hours, ambient conditions are
generally same).
11)
In case of piping extending to lengths more than 30 m and / or having
more than 20 site fabricated joints, the pressure should be recorded after
24 hours as well as after 48 hours, so that all leakages are detected and
made up.
12)
After detecting and making up any leak, the pressure testing must be
carried out
once again from beginning.
2 VRF PIPE SUPPORT SPECIFICATIONS:Factory made Versatile Light Weight Pipe Supports with Elastomeric Insulation for
fixing & hanging cooling, air conditioning and heating pipes
Specification
Clause: Insulated pipe support, single piece with self-adhesive closing seam, Fastening
element made of special plastic segments (which are joined under industrial conditions),
which are glued on two sides of the elastomeric foam insulation.
Technical Details:
Temperature Range: -0°C to +110°C
Moisture Resistance Factor µ > 5000 (acc. to EN 12086/EN 13469)
Thermal Conductivity at 0°C: 0.035 W/(m · K)
Fire Performance:
Reaction to Fire:
Entire system with elastomeric foam: BL-s3, d0 Test: D 5231
Tested acc. To DIN EN ISO11925-2
Practical Fire Behaviour:
Self-extinguishing, does not drip, does not spread flames
Colour: Black
Acoustic Performance:
New India Assurance
Page 20
Reduction of structure-borne sound transmission: According to used insulation layer in
clamp/ pipe fastener (Acc. To DIN 4109)
3 DRAIN PIPE INSULATION:
(CLASS ‘0’ NITRILE --- 13 MM THICK SLEEVE WITHOUT LAMINATED CLOTH &
NEITHER SELF SLEEVE NITRILE SHALL BE USED FOR DRAIN PIPING) i.e. only plain
nitrile rubber sleeve to be applied with the help of specified adhesive:
MATERIAL TECHNICAL SPECIFICATIONS:





Insulation material shall be Closed Cell Elastomeric Nitrile Rubber
Thermal conductivity of elastomeric nitrile rubber shall not exceed 0.035 W/
(m.K) at an average temperature of 0C
The insulation shall have fire performance such that it passes Class 1 as per
BS476 Part 7 for surface spread of flame as per BS 476 and also pass Fire
Propagation requirement as per BS476 Part 6 to meet the Class ‘O’ Fire
category as per 1991 Building Regulations (England & Wales) and the
Building Standards (Scotland) Regulations 1990
Material shall be FM (Factory Mutual), USA approved.
Moisture Diffusion Resistance Factor or ‘µ’ value shall be minimum 7,000.
ADHESIVE:
It should be supplied by insulation manufacturer. It should be Modified chloroprene
rubber adhesive in a blend of solvents, free from benzene. The adhesive shall be of low
viscosity for ease of application and quick drying characteristics. The properly cured
adhesive shall maintain water vapour resistance expected of insulation. It should have
service temperature same as of insulation.
The adhesive shall be quick drying characteristics for tropical conditions and shall have
service temperature of - 40 to + 105 degree C.
PRODUCT SPECIFICATIONS: 13 MM THICK NITRILE SLEEVE FOR DRAIN PIPING
INSULATION. IT SHALL BE PLAIN SLEEVE WITHOUT LAMINATED & WITHOUT SELF
SLEEVE.
VRV / VRF : INDOOR (INSIDE THE BUILDING):
SUPPLY: 13 / 19 MM NITRILE SLEEVE WITHOUT LAMINATED & WITHOUT SELF
SLEEVE
(for 6mm id (1/4) thickness shall be 13 mm, rest all the id’s up to 48mm id (1 7/8)
thickness shall be 19 mm )
RETURN: 13 MM NITRILE SLEEVE WITHOUT LAMINATED & WITHOUT SELF
SLEEVE
(For all the id’s from 6mm (1/4) to 48mm id (1 7/8)
New India Assurance
Page 21
MATERIAL TECHNICAL SPECIFICATIONS:





Insulation material shall be Closed Cell Elastomeric Nitrile Rubber
Thermal conductivity of elastomeric nitrile rubber shall not exceed 0.035 W/
(m.K) at an average temperature of 0C
The insulation shall have fire performance such that it passes Class 1 as per
BS476 Part 7 for surface spread of flame as per BS 476 and also pass Fire
Propagation requirement as per BS476 Part 6 to meet the Class ‘O’ Fire
category as per 1991 Building Regulations (England & Wales) and the
Building Standards (Scotland) Regulations 1990
Material shall be FM (Factory Mutual), USA approved.
Moisture Diffusion Resistance Factor or ‘µ’ value shall be minimum 7,000.
ADHESIVE:
It should be supplied by insulation manufacturer. It should be Modified chloroprene
rubber adhesive in a blend of solvents, free from benzene. The adhesive shall be of low
viscosity for ease of application and quick drying characteristics. The properly cured
adhesive shall maintain water vapour resistance expected of insulation. It should have
service temperature same as of insulation.
The adhesive shall be quick drying characteristics for tropical conditions and shall have
service temperature of - 40 to + 105 degree C.
FOR PIPING OUTSIDE THEBUILDING / OPEN TO SKY & wherever mechanical
protection is needed FOLLOWING PROCEDURE TO BE FOLLOWED. Thus R/O shall be
given for this item in BOQ:
Additional covering of treated woven glass cloth over nitrile sleeve is for mechanical & UV
protection.
New India Assurance
Page 22
4.0 UNDER-DECK INSULATION
The scope of this section comprises the supply and application of Under-deck insulation
conforming to these specifications.
Material:
 Insulation material shall be Closed Cell Elastomeric Nitrile Rubber
 Density of Material shall be between 40 to 60 Kg/m3
 Thermal conductivity of elastomeric nitrile rubber shall not exceed 0.035 W/mK at an average
temperature of 0C
 The insulation shall have fire performance such that it passes
Part 7 for surface spread of
flame as per BS 476 and also pass Fire Propagation requirement as per BS476 Part 6 to meet
the Class ‘O’ Fire category as per 1991 Building Regulations (England & Wales) and the
Building Standards (Scotland) Regulations 1990
 Material should be FM (Factory Mutual), USA approved.
 Water vapour permeability shall not exceed 0.017 Perm inch (2.48 x 10 -14 Kg/m.s.Pa), i.e.
Moisture Diffusion Resistance Factor ‘µ’ value should be minimum 7000.
Thickness:
For Concrete Slab: 25 mm thick sheet is used
For Corrugated or metal ceiling: 32 mm thick sheet
Installation procedure:
 The ceiling surface shall be cleaned with brush to remove all dirt, cement etc. If
surface is uneven it should be made smooth prior to carrying out insulation work.
 A layer of DuctSeal adhesive should be applied on the ceiling with the help of brush
so that all the pores are filled and surface becomes smooth and allow it to dry.
 Allow an additional 5 mm to the total dimensions while cutting Insulation sheet.
Ensure you measure the cutting dimensions on the top surface of the insulation sheet.
This can be identified by the products markings; “they are always on the top surface.
This surface is the one you will see after installation.
 All Insulation sheet and ceiling surfaces shall have all-over adhesive coverage.
Adhesive should be applied on the side that has no product markings and
identification printing. This side is the one that curves inwards.
 During installation avoid air bubbles. Always apply pressure while fixing the Insulation
sheet, this action will ensure maximum bond strength.
 All cut Insulation sheet edges shall be of a “clean cut nature and not cut rough”.
 All seams and joint shall be sealed with DUCTSEAL adhesive.
 Measurement of surface dimensions shall be taken properly to cut closed cell
elastomeric rubbers sheets to size with sufficient allowance in dimension. Material
shall be fitted under compression and no stretching of material shall be permitted. A
thin film of adhesive shall be applied on the ceiling with brush and then on to the back
of the insulating material sheet with brush/small piece of sheet metal having smooth
edges. When adhesive is tack dry, insulating material sheet shall be placed in position
and pressed firmly to achieve a good bond. All joints shall be sealed. The adhesive
shall be strictly as recommended by the manufacturer. DUCTSEAL adhesive of
Pidelite should be used for all Under-Deck applications.
New India Assurance
Page 23


There is no need to make holes for wires etc. as no supporting wires/screws are
required.
While doing installation on the metal roofing, it is important to ensure that metal roof
should not face direct sun light, as metal sheets becomes very hot and adhesive may
not work. In such conditions work should be done in the evening / night after sun set.
The recommended adhesive for metal roofing is SR 998 made by Pidelite.
5 SPECIFICATIONS FOR INLINE DUCT FAN
.
Specification for inline duct fan
1. Fan type
Mixed flow inline duct fan
2. Material of
construction
a. Impeller
ABS plastic impeller.
b. Casing
Polypropylene casing with specifically designed internal skin
made up of sound absorbent material
3. Connection box
Connection box will be rotating type to facilitate easy connection of
the power cable.
4. Motor type:
2 speed controllable motor
5. Phase
Single phase
6. Voltage/ Frequency
230 V/ 50 Hz
7. Insulation class/
Protection
Class B/ IP44
8. Fan performance
Fan performance should be in accordance with AMCA 210-99
standard
9. Noise level
Maximum noise 22dba @ 3mtr distance.
New India Assurance
Page 24
6 STANDARD & CODE
6.1
MOTORS
6.1.1
Rating
The ratings of the motors shall be as required to meet the duty conditions of the
appliance to which it is connected but in no case shall be less than that indicated
in schedule of quantities. The rating shall be selected on the basis of ambient
temperature & allowable maximum temperature rise as specified.
6.1.2
Standards & Codes
Unless otherwise specified, the induction motors shall conform to the latest edition
of relevant Indian. IEC or British Standards. With high efficiency standard
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
The relevant Indian Standards areInduction motors - Three Phase.
Measurement and evaluation of vibration of Rotating
electrical machine.
Code of Practice for climate proofing.
Degree of Protection provided by enclosures for
rotating Electrical Machinery.
Classification of hazardous area for electric equipment.
Flame proof enclosure of electrical equipment.
Method of determination of efficiency of rotating
Electrical Machines.
Specification for rotating electric machine.
Construction and testing of electrical apparatus with
type of protection “E”.
Designation for types of Construction & Mounting
Arrangements of Rotating Electrical machines.
Terminal Marking for Rotating Electrical Machinery.
Designation of Methods of Cooling for Rotating Electrical Machines.
Guide for testing three phase induction motors.
Dimensions of Slide Rails for Electrical Motors.
Industrial Platinum Resistance thermometer sensors.
Method of marking for identifying electrical equipments
for explosive atmosphere.
IS-325
IS-4729
IS-3202
IS-4691
IS-5572
IS-2148
IS-4889
IS-4722
IS-6381
IS-2253
IS-4728
IS-6362
IS-4029
IS-2968
IS-2848
IS-8241
All motors shall comply with IS- 325, in respect of general requirements and
performance. Motors shall also confirm to IS- 1231, for foot- mounted motors.
c)
In general all the motors above 1 hp. shall be 3 phases unless otherwise
specified. Fhp motors may be either 3 phase or single phase as required.
d)
Motors shall run at all loads without appreciable noise or hum. Motors shall be
one of the following design and as more specifically specified in equipment
schedule-
New India Assurance
Page 25
i.
ii.
iii.
iv.
v.
Squirrel cage,
Wound Rotor
Totally enclosed
Totally enclosed, fan cooled (T.E.F.C).
Screen Protected Drip Proof (S.P.D.P.).
Winding of motors shall be class “F” insulated and fully tropicalised.
e)
Motors shall be rated for continuous duty as defined in IS- 325. All motors shall
have suitable torque characteristics as required by the duty of driven equipment.
Motors shall be suitable for operation on 415+/-10% V, 3 phase, 50 HZ, AC supply
(or 230 V single phase 50 HZ, AC supply if required).
f)
Motors shall be provided with ball/roller bearings. Bearings shall have ample
capacity to deal with any axial thrust. Suitable grease nipples shall be provided for
re-greasing the bearing.
g)
Motors shall be provided with a cable box to suit the required number of runs of
aluminium conductor, PVC insulated, PVC sheathed and steel wire armored
cables.
h)
Motors shall be designed to operate successfully under the following conditions of
voltage and frequency variation.
1)
Where the voltage variation does not exceed ten percent (10 %) above or below
normal.
2)
Where the frequency variation does not exceed five percent (5 %) above or below
normal.
(3)
Where the sum of voltage and frequency variation does not exceed ten percent
(10%) provided the frequency does not exceed 5% above or below normal.
New India Assurance
Page 26
6.20
1)
a)
b)
c)
SPECIFICATIONS FOR PAINTING WORK FOR VRV SYSTEM
Standard colour code.
Hot Gas Line
:
PO Red
Liquid Line
:
Orange
Suction Line
:
Insulated
d) All supports / Stands
:
Black
All painting works shall form part of the cost of equipment, piping etc. No separate
payment shall be applicable.
I.S. CODES
Following IS CODES will be applicable for the project.
1.
IS: 655 - 1963
:
Ducting work.
2.
IS: 659 - 1964
:
Safety Code for Air-conditioning.
3.
IS: 660 - 1963
:
Safety Code for Mechanical Ref.
4.
IS: 5111 - 1969
:
Code of Practice and Measurement Procedure for
Testing Refrigerant Compressors.
5.
IS: 325 - 1970
:
Specifications for 3 Ph. Induction Motor. Also
confirm to IS : 1231 for Foot Mounted & IS : 2223 for flange mounted motors.
6.
IS: 2147 - 1962
:
Degree of protection provided by enclosures for
low voltage switch and control gears.
7.
IS: 3012 - 1965
:
Code of Practice for installation (PART-I) &
maintenance of switchgear.
8.
IS: 3016 - 1982
cutting operations.
:
Code of Practice for Fire precautions in welding and
9.
IS: 3615 - 1967
Air-conditioning.
:
Glossary of terms
New India Assurance
used
in Refrigeration and
Page 27
7.0
INFORMATION TO BE FURNISHED BY THE TENDERER ALONG WITH THE
TENDERPART A
VARIABLE REFRIGERANT FLOW SYSTEMS
7.1
Variable Refrigerant Flow System
1.
2.
3.
4.
5.
6.
7.
Type / Refrigerant
Make / Model
Quantity
KW (Motor-connected)
KW (Motor-consumed)
Full load current
Refrigerant capacity
At 5°C suction & 43°C discharge
Refrigerant
8.
Condenser
1.
Type
2.
Air quantity
3.
Coil face area
4.
No. of rows
5.
By pass factor
6.
Fan motor KW/RPM
7.
Full load current of fan motor
8.
Static pressure of fan
9.
No. of speed for fan
10.
Copper tube thick/diameter
11.
Aluminium fins spacing/Guage
1.
2.
Overall dimensional details
Condensing unit
Evaporating unit
1.
2.
3.
4.
Salient features
Type of filter
Filter area
Filtrations level
Any other details
Total power consumption of the unit
1.
For all condensing units at full capacity
2.
For all Indoor units at full capacity
New India Assurance
Page 28
4-WAY CASSETTE TYPE
3.30 Tr
2.10 Tr
1.65 Tr
1.30Tr
1.0Tr
0.80 Tr
1.
2.
3.
Tolérances
Voltage
Power factor
Frequency
FAN
Make/Type
Capacity CFM
Static pressure
Drive arrangement
MOTOR
Manufacturer
Ventilation Unit (Details to be furnished for each type of unit)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Fan Section1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Manufacturer
Model No.
Type of unit horizontal or vertical
Overall dimension mm.
Weight Kg.
Noise Level.
Static & dynamic load
Vibration level
Skin sheet gauge
Make of the Construction material
Type of fan
Air quantity. M3/hr
Total static pressure mm.
Fans speed RPM (normal/critical/maximum)
Fan motor HP (connected/consumed)
Fan efficiency
Drive efficiency
Total efficiency
Outlet velocity meter/min.
Fan dia. mm
Balancing (Static and/or dynamic)
Material of Construction
No. of Vanes
Type of impeller blades
New India Assurance
Page 29
15.
16.
17.
18.
19.
20.
21.
22.
Fundamental frequency.
Static pressure MM WG.
Dynamic Pressure MM WG.
Operating temperature oC
Density KG/M3
Bearings (type/make)
Bearings life
Non-over load power
ELECTRIC MOTORS1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Manufacture
Model No. & frame size
Rated output H.P.
Range of working voltage.
Rated speed RPM.
Full load current amps.
Class of insulation.
Temperature
Efficiency & P.F. at 100% & 60% load with each motor.
Total cap. in MFD of the capacitor with each motor.
Static & Dynamic load.
Class of Insulation
Degree of protection
Starting torque
G.D.2 value
INLINE FANS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Manufacturer
Model No.
Type of unit horizontal or vertical
Overall dimension mm.
Weight Kg.
Noise Level.
Static & dynamic load
Vibration level
Skin sheet gauge
Make of the Construction material
1.
2.
3.
4.
5.
Type of fan
Air quantity. M3/hr
Total static pressure mm.
Fans speed RPM (normal/critical/maximum)
Fan motor HP (connected/consumed)
FAN
New India Assurance
Page 30
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
Fan efficiency
Drive efficiency
Total efficiency
Outlet velocity meter/min.
Fan dia. mm
Balancing (Static and/or dynamic)
Material of Construction
No. of Vanes
Type of impeller blades
Fundamental frequency.
Static pressure MM WG.
Dynamic Pressure MM WG.
Operating temperature oC
Density KG/M3
Bearings (type/make)
Bearings life
Non-over load power
PIPES & FITTINGSRefrigerant
1.
2.
3.
Drain
Manufacture
Class
Material
INSULATION Nitrile Foam FRQ EPE Glass wool
1.
Manufacture.
2.
Material of virgin nature.
3.
`K' value at 10o C mean temp.
4.
Thickness
5.
Density
6.
Fire retardant property
TOTAL INSTALLED KW: ________________________ KW.
(Including Indoor & Outdoor unit, Fresh Air Unit, Air Handling Unit
(Ventilation) etc.)
TOTAL POWER CONSUMPTION AT 100% LOAD: ____________ KW.
(Including Indoor & Outdoor unit, Fresh Air Unit, Air Handling Unit
(Ventilation) etc.)
New India Assurance
Page 31
8.00
Sr. no.
LIST OF APPROVED MAKES
Component
Approved Make
1)
Variable Refrigerant System
2)
DX Package Unit
3)
Condensing Units
4)
5)
6)
7)
8)
9)
Thermal Insulation
Acoustic Insulation
PVC PIPES
Paint
G.I. Sheets
Grill / Damper/ Diffuser
10)
Factory fabricated Mixing box
11)
12)
13)
14)
15)
Pre Insulated Duct
Copper pipes
Motorised fire damper
Ventilation Units
Smoke Evacuation Fans
16)
Motors
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
Centrifugal Fan
Fasteners
Electrical Panel
Ventilation all kind of Fans
MS / Aluminium Work
Switches
Circuit Breakers
Starters
Push Buttons / Overload/ Relays / Lamps
Voltmeter / Ammeter
Cables, Power Cables, Control Cables,
FRLS
False Ceiling
Carrier-Toshiba / Daikin / Mitsubishi / LG /
Samsung / Voltas
Daikin / Voltas / Blue Star / Panasonic /
Samsung.
Carrier-Toshiba / Daikin / Mitsubishi / LG /
Samsung /Voltas
Armaflex / Thermaflex / Durkee.
Supreme / Twiga / Armstrong
Prince / Supreme or ISI Approved
Asian / Burger
Jindal / Tata
Air products / Caryaire / Cosmos / Dynacraft/
Trox
Air products / Caryaire / Cosmos / Dynacraft/
Trox
Asawa / Pal
Mandev / Rajco / Maxflow
UL listed fire dampers
Kruger / System Air / Flak wood/
Kruger / System Air / Flak wood/ Nicotra /
Carry air
Bharat Bijlee/NGEF/Siemens
/ABB/Crompton Greaves/ Kirloskar
Nicotra / Punkar / Flakt / Comefri / EBM
Hilti
Vendor’s approved make
Kruger / System air / Maico
Tata / Jindal
Siemens / L&T
Siemens/ L&T
Siemens / L&T/ Eqvt.Approved
Siemens / L&T/ Eqvt.Approved
A/E – Imp
Polycab / Finolex / eqvt.approved
28)
New India Assurance
Armstrong or equivalent
Page 32
9.0
DEVIATIONS STATEMENT
9.1
COMMECIAL DEVIATIONS STATEMENT
The Tenderer shall fill this Deviation statement for the any deviations made in the standard
Tender Terms & Conditions.
Sr.
No.
1.
Original Tender Conditions
Deviations
2.
3.
4.
5.
6.
7.
8.
9.
10.
New India Assurance
Page 33
9.2
TECHNICAL DEVIATIONS STATEMENT
The Tenderer shall fill this Deviation statement for the any deviations made in the standard
Tender Specifications.
Sr.
No.
1.
Original Tender Conditions
Deviations
2.
3.
4.
5.
6.
7.
8.
9.
10.
New India Assurance
Page 34
GENERAL INSTRUCTIONS
The following Quantities are based on the conceptual layouts drawings, and it may vary with final drawings
and Client's / Architect's / consultant’s requirements. The BOQ herein under is calculated on the basis of the
enclosed tender drawings for HVAC System.
HVAC works for all the corridors, public areas of the building are considered in this BOQ. Any change in the
requirement of the Client / Interior Designer / Architect will result into variation of the quantities and the
tendered shall consider the same while quoting for this tender. Vendor to confirm any additional requirement
in the tender. No supplementary billing will be acceptable for any extra quantities beyond the quoted price of
tender for completion of work
Being operating Commercial Office, the tendered shall be check feasibility on site with the HVAC drawing
layout prepared for the variation in the quantities of the BOQ herein under, considering the variation in the
requirement of the clients / Architect / Interior Designers. The tendered shall absorb any increase or
decrease in the final quantities being executed under the scope of this tender. Completing all work as per
technical specification and end to end connectivity of all equipments to put them in operation and use will be
responsibility of the tenderer.
CIVILWORK-As A HVAC design criteria no major civil work changes are envisaged in building. Contractor
shall not do any such changes or recommend any such change in executing of this contract, Any civil design
or structural design required as a part of this contract shall be done by contract directly and get validated
from certified structural or civil engineer and submit the copy of such design to NIA authorities for their
record. This will be treated as a part of the contract activity. If any staff or representative of the company is
required to stay overtime for work to be carried away by bidder during execution of contract, same will be
required to be paid by the contractor to company.
Electrical Work: Contractor shall specify new requirement of electrical load after completion of installation of
new system. The application of additional load sanction will also be initiated by the contractor and relevant
application will be forwarded to present electricity supplier. Contractor shall also do necessary follow up for
sanction of additional load and the statutory fees will be reimbursed by NIA which shall be supported by
documentary details. As far as possible approval shall be obtained before final commissioning of new
system.
DURATION & PENALTYTime period for work is envisaged as 5 Months, contractor shall complete the work during this stipulated prior
in sequence as suggested. Any extension for this frame if required will be applied by contractor in advance
and will be weighted for approval by customer but no escalation of any cost, whatsoever; over the agreed
contract value shall be applicable for such extension. If completion of work is delayed beyond 6 months from
date of allotment of contract penalty shall be applied @1% per week of the value of the incomplete part of
work, to maximum of 5% value of incomplete part of the work
STATUTORY PERMISSIONSContractor shall obtain any statutory permission, approval, from local authority as may be applicable. If any
such letter is required by the authority same shall be issued on receiving such request from contractor. Any
factory inspector, Electrical inspector permission or approval as required for installation same shall be
obtained by the contractor
Dismantling of and removing of equipment existing systemContractor shall dismantle and remove old HVAC equipments in contract site to accommodate the new
equipments .Disposal and removing these equipments or material from present work location to
accommodate HVAC equipments shall be responsibility of the tenderer. Old equipments or debris removal
from its place is part of contract only and shall be done in shortest possible time without making
inconvenience to working office, or damage to existing property. In any such event of damage, same shall be
rectified by the contractor at no extra cost.
On allotment of contract contractor shall provide all maintenance service to present operating HVAC
equipments for, AHUs,. Services such as gas charging, to present chillers, motor rewinding, etc will be a part
of activity under such requirement. Any major work shall be billed as per prevailing standard
New India Assurance
Page 35
refrigeration practice and be approved by the local authorities.
Dismantling of old false ceiling as well as lighting system shall be done in sequential manner in full
Co-ordination of working office groups so that office work is not affected.
Contractor will provide adequate pedestal fans for working office staff when present air conditioning system
or ceiling fans are being dismantled at no extra cost
Existing doors and window: All glass window should be applied with thermal resistance polyester films of
high quality to avoid heat in grace due to sun rays (Garware or equivalent or imported)The work should be of
high quality without any blisters on surface.
Partition walls:
Contractor shall provide partition work to segregate RO and DO offices as well as common spaces such as
canteen, club centre, stores room etc,with full wall partition
existing glass of partition wall can be retaining however the particle board to be replaced to match the colour
of false ceiling tiles to look elegant
i
SHEDULE OF QUANTITIES -[HVAC SYSTEM FOR NEW INDIA INSURANCE OFFICE @ MUMBAI
The work includes design, supply, erection, testing & commissioning of the complete Air-conditioning
system. The tendered shall fill in the columns of Rate, amount and submit the same along with the
TECHNICAL details as mentioned in tender document.
CONTRACTOR'S SCOPE OF WORK
INSTALLATION
Sr. No.
A
1.0
A
DESCRIPTION
QTY
UNIT
SUPPLY
AMO
RATE
UNT
RATE
AMOU
NT
Supply of Variable Refrigerant FLOW
System (High side Items)
AIR CONDITIONING SYSTEM
Supply of new factory supplied air cooled
Variable
Refrigerant Flow System. Supply of new
variable Refrigerant Flow modular type airconditioning system complete with individual
corded/cordless controller as per indoor &
outdoor units per the following capacities of
the IDU and ODU.
Out-door units
New India Assurance
Nos.
Page 36
PROP
OSED
MAK
E
A.1
Supply of Condensing Unit. The Condensing
Unit (modular type Outdoor Units) shall
comprise of all highly efficient scroll
Inverter Driven multiple Compressor only
with special acry precoated heat exchanger.
low noise Air Cooled condenser with R134A/410A/HFC
Gas
.The
Multiple
Compressors offered shall have independent
refrigerant circuit The ODU & IDU units shall
be integrated with special super wiring
system with central monitoring remote
controller into one common wiring apart
Compressor shall cut-off automatically in part
load condition. The unit shall have microprocessor controls. The outdoor units shall
be installed on the space allotted in the
drawings and should be with factory fitted
anti corrosive weather coating. Scope
shall include all support for the indoor and
outdoor units. The units shall be factory
assembled and only the refrigerant piping
shall be carried out at the site. The noise
level for the outdoor unit shall be less than 65
dbA and for indoor unit less than 50 dbA. The
price shall include the vibration isolator and
necessary support rods for the units All
structural frame work platforms required
shall
be
of
HVAC vendor scope only & as per site
conditions.
a
20 HP(DO III)
1
b
20 HP(DO I)
1
c
22 HP(ROII)
1
d
24 HP(ROII)
1
e
12 HP(DOII)
1
A.2
In-door units (All indoor m/c's with
density & population sensor, drain pump
& Fresh Air intake Provision)
New India Assurance
Page 37
A.2.1
Ceiling mounted four way discharge
cassette indoor units with compact cooling
coil, electronic expansion valve &multi
speed fan motor, the blower shall be
dynamically balanced and design for silent
operation, filter shall be plasma and
synthetic washable media type arrange for
convenient cleaning and replacement built
in drain pump shall be fabricated out of
heavy steel insulated with 6 mm expanded
polyethylene sheet.
Nos.
a
3.5 TR/1200 CFM
22
b
2.10 TR /700 CFM
1
c
1.60TR/500 CFM
3
d
1TR/350 CFM
5
e
0.80TR/320 CFM
11
A.4
All refrigerant Joints (In pair)
42
A.5
Remote control
a
A.6
Nos.
Cordless
28
Advance VRF Digital LCD touch screen
Central remote controller suitable for above
IDU application (INTELLIGENT ON/OFF
Centralize CONTROLLER) for all indoor &
outdoor machines compile with all
necessary Accessories ,Fitments and
support which should offer with followings
functions
4
*
Permit/prohibit
*
Operational lock
*
Schedule operation
*
checking Gas amount
*
Night setback function
*
Automatic heat / cool change-over
*
Temperature limitation
*
Sliding temperature
*
All Energy saving function
New India Assurance
nos
Nos.
Page 38
*
Fan speed setting
Air flow direction
*
Energy saving function
A
Sub Total Of A Supply of
Variable
Refrigerant FLOW System (High side
Items)
B
Lifting, Shifting Installation, Testing and
Commissioning of Variable Refrigerant
Flow System
Installation, Testing and commissioning of
Outdoor units including the transport and
lifting and complete MS structural frame
work plat forms as per site conditions.
a
20 HP(DO III)
1
b
20 HP(DO I)
1
c
22 HP(ROII)
1
d
24 HP(ROII)
1
e
12 HP(DOII)
1
B.2
In-door units (All indoor m/c's with
density & population sensor, drain pump
& Fresh Air intake Provision)
Ceiling Mounted Cassette(four way Flow)
Type
B.2.1
Nos.
a
3.5 TR/1200 CFM
22
b
2.10 TR /700 CFM
1
c
1.60TR/500 CFM
3
d
1TR/350 CFM
5
e
0.80TR/320 CFM
11
B.3
All refrigerant Joints (In pair)
42
B.4
Remote control
a
Cordless
New India Assurance
nos
Nos.
28
Page 39
B.5
Advance VRF Digital LCD touch screen
Central remote controller suitable for above
IDU application (INTELLIGENT ON/OFF
Centralize CONTROLLER) for all indoor &
outdoor machines compile with all
necessary Accessories ,Fitments and
support which should offer with followings
functions
*
Permit/prohibit
*
Operational lock
*
Schedule operation
*
checking Gas amount
*
Night setback function
*
Automatic heat / cool change-over
*
Temperature limitation
*
Sliding temperature
*
All Energy saving function
*
Fan speed setting
4
no
Air flow direction
*
Energy saving function
SUB-TOTAL B SITC OF VRF SYSTEM
B
Supply, Installation ,Erection, testing and
Commissioning of LOW SIDE WORK
C
LOW SIDE AIR CONDITIONING WORK
New India Assurance
Page 40
C.1
Supply,
installation,
testing
and
commissioning of refrigerant seamless
heavy gauge piping using eddy current free
including fittings like elbows, couplers, tee
joints, brass fittings, "U" loops, expansion
loops etc. insulation of pipes using 19 mm
for SUPPLY & 13 mm FOR RETURN thick
elastomeric closed cellx Nitrile Rubber
Tubular insulation material having class "O"
for fire properties, structural clamps with
hard PVC pipe sleeves under the clamps to
protect insulation at supports, tagging to
enable tracing connectivity to respective
units as per shop drawings to be generated
by contractor and approved by consultant.
Submission of test reports in approved
format forms a part of this item scope.
Making up of any leakages occurring during
testing / commissioning / first calendar year
from handing over, including supply, labor,
consumables, refrigerant, top up, oil top up
and incidental expenses also forms a part of
the scope covered under this item. ALL
PIPES SHALL BE RUN THROUGH HOT
DIP GALVANISED TRAY OF SUITABLE
SIZE. The exposed refrigerant insulated
piping shall be covered with UV
Resistance canvass coating and carried
out with the cable tray .
Rmt
DO-III
50
DO-I
50
RO-II
60
RO-II
55
DO-III
35
Note- Total Pipe length Estimated is in
pair), However exact pipe sizes , length
to be specified by contractor during the
quote. Pipe Sizes As Per Manufactures
specification
C.2
All control cables between indoor and
outdoor unit laid in PVC pipe and clamped .
New India Assurance
350
Rmt
Page 41
C.3
C.4
C.8
M.S Structure for installing VRF outdoor
units duly epoxy coated/galvanized suitable
for mention ODU capacity(Structure as per
RCC consultant)
Testing & Commissioning charges along
with SUPPLY & topping-up of refrigerant
950
Kgs.
1
lot
Supply,
installation,
testing
and
commissioning of 6 KGF UPVC Drain piping
for the units With Insulation of Nitrile Rubber
class 'O' tube section thickness of 13 mm as
per specification and suitable for following
pipe size
Rmt
a
DIA. 25MM ID
90
b
DIA. 32 MM ID
80
SUB-TOTAL
C
LOW
CONDITIONING WORKS
D
D.1
SIDE
AIR
Supply,
installation,
testing
and
commissioning
of
MECHANICAL
VENTILATION
SYSTEM
with
all
necessary supports, fasteners, nuts,
bolts, washers, jointing & reinrforcement
system etc.
SITC of AMCA certifies Ceiling Mounted
Inline Fresh air fans with 2 speeds hi
efficiency motor. Sound level should not
exceed 22 DB quote shall be including
10micron filter , Aluminum powder coated
inlet air louvers , bird screen &VCD
Nos
a
500 cfm, 12 mm static
2
b
850 cfm, 20 mm static
2
c
650 cfm, 20 mm static
1
D.2
Supply,
installation,
testing
and
commissioning of 6 KGF PVC piping for
Fresh air supply to all Cassette of following
pipe size
New India Assurance
Rmt
Page 42
a
Ø 300 mm
80
b
Ø250 mm
50
c
Ø200 mm
30
d
Ø150 mm
60
e
Ø100 mm
30
D.2.1
a
D.3
Preinsulated flexible duct for the following
diameters
100 mm
Rmt
30
SITC GI make Duct flow controller including
all necessary supports, fasteners, nuts,
bolts, washers, jointing etc
NOS
a
50CFM
15
b
75CFM
5
c
100CFM
22
D.4
Supply,
installation,
testing
and
commissioning of Under deck class-O as
per BS 476 closed cell nitrile rubber of
density 50Kg/m3insulation with 25 mm
thickness
having
minimum
thermal
conductivity of 0.035 W/m2 K at an average
temperature of 0°C
SUB-TOTAL
D
LOW
CONDITIONING WORKS
SIDE
2000
MT2
AIR
TOTAL of High side ( A)
Unloading, Lifting& Shifting at site from
the container parked near the site.
Total of Local Supply
Total of Local Installation
Taxes on Local Supply
Taxes on Local Installation
5831900
New India Assurance
Page 43
GRAND TOTAL
All in All annual maintenance cost
including consumables and spares for 5
years after expiry of warranty period
Year
1
2
3
4
5
TOT
AL
of
AMC
for
10yr
s
HOWEVER THE OWNER HOLDS THE RIGHT TO
ADD / DELETE ANY ITEM FROM THE
CONTRACTORS SCOPE IF HE SO DESIRES.
DATE:
SIG
N:
COMP
ANY
SEAL :
DES
IGN
ATI
ON:
New India Assurance
Page 44
ELECTRICAL SYSTEM
GENERAL TECHNICAL SPECIFICATIONS
New India Assurance
Page 45
SWITCHGEARS & POWER PANELS
1.
SCOPE:
i
These specifications cover design, manufacture, test and supply Power
Control Centres (PCC), Motor Control Centers (MCC), Power Distribution
Boards (PDB), Lighting Distribution Boards (LDB) and similar fabricated switch
boards and panels.
2.
STANDARDS:
i
All materials, equipments, wires and accessories etc. shall generally conform
to relevant Indian Standards.
Manufacturer shall bring to the notice of
Purchasers in case any of the equipments not conforming to Indian Standards
are being used by him.
ii
Some of the standards are listed below for ready reference.
Fabrication
:
IS 2147 – Degree of Protection of enclosures.
IS 3202 - Code of Practice for Climate proofing.
Bus-bars
:
IS 375 - Marking arrangement of bus bars and wiring.
Components
:
IS 4047 – Heavy Duty air-break switches.
:
IS 2208 – HRC fuses
:
IS 2959 – AC Contactors
:
IS 1822 – AC motor starters
:
IS 1248 - Miniature Circuit Breakers
Metering
Wiring
:
IS 2075 – Current Transformers
:
IS 3156 – Voltage Transformers
:
IS 1248 – Indicated meters
:
IS 722 – AC Electricity Metes.
:
IS 694 - PVC insulated wires.
3.
CLIMATE CONDITIONS:
i
Switchboards shall generally withstand ambient temperature of 45 deg.C with
peak of 50 deg. C for two hours. Humidity will be max. 91%. Boards will be
installed in a closed room of 4 meters high and one meter bigger all round
the board.
New India Assurance
Page 46
ii
If atmosphere is conducive to corrosion, special care at gasket ting, hardware
and paint shall be taken..
4.
ELECTRICAL SUPPLY SYSTEM :
i
Supply system is derived from 440 volts, 3 phase, 4 wire secondary of a
power transformer, with neutral solidly grounded.
ii
Single phase supply shall be derived from any one or the three phases and
neutral, at 240 volts.
5.
FABRICATION :
i
Boards shall be fabricated out of 2 mm thick (14 SWG) CRCA sheet steel .
Larger sections may be used where required. Unsupported span of sheet
steel of main framework and door , shall not exceed 1 meter in any direction.
If unavoidable it shall be braced by folded channels for rigidity and strength.
After fabrication, boards shall be treated for rust removal, welding scales
removed, degreased, treated in seven tank process OR by three in one
solution, subject to prior approval from Client..
ii
Free standing boards shall have min. 75 mm high Channel frame. This
frame shall be used for grouting/ bolting of boards on floor. Bolt holes on the
bottom of the Channel frame shall be accessible by removing gland plate at
corresponding locations. Holes shall be 14 diameter for M12 hardware. Main
board can be welded/ bolted to this Channel frame.
iii
For wall mounting boards external fixing lugs, with 14 diameter. holes for M12
bolts shall be provided. Those shall not project out when seen from front.
iv
Cable alleys shall have removable gland-plates. Slip holes shall be drilled
according to the cable sizes and gland sizes. Extra entries and entries of
spare feeders shall be suitably plugged.
6
PAINTING :
i
All steel surfaces shall be thoroughly cleaned, welding scales removed,
degreased, treated in seven tank process or with three-in-one solution.
ii
Painting shall be powder coating type with colour shade as specified in
specific requirements.
iii
For control panels/ desks, inside surface shall be painted off white.
iv
For fire protection panels, fire red paint of shade as 538 as per IS 5 shall be
used.
New India Assurance
Page 47
7.
CONSTRUCTION:
i
All the Panels shall be suitable of Form-3b type. Boards shall be of
compartmental design, modular construction, unless specified otherwise,
every components shall be fully covered from all sides. Equipment
mounting plate shall be easily removable along with components and wiring.
When removed, live bus-bars shall not be accessible.
ii
Modules shall be fixed, semi draw-out or fully draw-out as mentioned in
specific requirements. In all alternatives isolator shall be interlocked with the
door opening, when ELMCB is implied replacing isolator, a flexible shaft
operated by stay put type push button on door shall be used to press ‘trip/test’
knob on ELMCB. Isolator incoming terminals shall be fully shrouded to avoid
accidental contact after door is opened.
Requirements of semi-draw-out and fully draw-out feeders are described
elsewhere.
iii
Doors shall be adequately hinged on one side. Non deteriorating gaskets
shall be provided to make it dust-tight and vermin-proof, door closing knobs
shall be key operated cam-type, to compress the gasket sufficiently and
ensure dust tightness.
iv
Gaskets shall also be provided between shipping sections and all joints. Busbar compartments shall be fully shrouded.
v
Cable compartments shall have clear opening more than 250 mm, excluding
bends of sheets, gaskets etc. knobs of the covers shall have captive washers
and guide spool for easy alignment with the fixed nut.
vi.
Boards shall be flush fronted, single front or double front, with specific
requirements of back access/ dead against wall feature.
vii
Lifting hooks shall be provided for each
shipping section, giving due
consideration to centre of gravity of the Cubical. Hooks, if removable, shall
leave no opening retaining property of dust tight
8.
BUS-BARS :
i.
Bus-bars shall be of electrolytic copper as specified. Current density shall not
exceed 1.2 Amps/ sq.mm.for copper. (or as specified in specific
requirements ) Vendor can use higher current density, if thinner sections of
bus-bars are used with proper spacing and configuration.
ii
Temperature rise in bus-bars shall not exceed 450 C above ambient of 350 C
New India Assurance
Page 48
( Please see C.1)
iii
Bus-bars sleeve is optional. Black mat finish of bus-bars is preferred for better
heat dissipation.
iv
`Bus-bars shall withstand short-circuit capacity as mentioned. Number and
spacing of supports shall be designed accordingly.
v
Tapping of bus-bars shall have contact surface at least four times the crosssection of tapping. Cross section of the risers/ tapping shall be rated for
150% of summated capacity of the switches on that section.
vi.
Bimetallic joints shall be avoided as far as possible.
If provided, copper
surfaces shall be tinned or coated with thin film of corrosion inhibiting
compound or provided with bimetal plate.
9.
COMPONENTS:
i
AIR CIRCUIT BREAKER:
1. ACB shall be air break, draw-out/ non-draw-out type and modular in construction.
The ACB shall be suitable for operational voltage of 440V, 50Hz supply system.
2. The air break circuit breaker shall be three/four pole, manual/motorized operation,
draw out type of circuit breaker as specified with a stored energy closing
mechanism, integral spring charging handle, status indicators (closed, open and
tripped), close and trip push buttons and provision for pad-locking in open
position.
3. The ACB shall have trip free mechanism which prevents the operating mechanism
from interfering with the tripping or opening action.
4. It shall have CT operated microprocessor based release providing overload, short
time delay short circuit, instantaneous short circuit, earth fault protection with
following settings
L’: 0.4 – 1x In (settable)
‘S’: 1.25 – 12x In, & Time delay ‘ts’: up to 400ms (both settable)
‘I’: >15 x In
‘G’: 20 – 60% x In & Time delay ‘tg’ 100ms-500ms (both settable)
Separate fault indications shall be provided on release for LSIG trips
On line self test facility, without need of secondary injection, shall be available
on the release for release health check-up.
5. The ACB shall be fully rated for 50oC ambient temperature.
New India Assurance
Page 49
6. Castell key lock if asked for shall be provided on the ACB itself. It should
be possible to remove castell key only when breakers is in OFF condition.
7. All the vital accessories like Shunt, Motor, under voltage shall be accessible from
the front and should not need removing of the breaker from its panel for the
addition at site.
8. Physical contact wear indicator shall be provided to indicate the erosion of the
contacts.
9. It shall have shunt trip coil for remote tripping as per operating voltage specified.
Closing and trip coil shall operate satisfactorily under the following conditions of
supply voltage variation:
Closing coils - 85% to 110% of rated voltage.
Trip coils - 70% to 110% of rated voltage.
10. The draw out design of the circuit breaker shall have three positions – ‘SERVICE’,
‘TEST’ and ‘ISOLATE’. Position indicator shall be provided on the panel to
indicate the position of the circuit breaker trolley viz. ‘ISOLATE’, ‘TEST’ and
‘SERVICE’.
11. Two set of auxiliary NO and NC contact blocks shall be available wired upto
terminal blocks.
12. Adequate number of contacts shall be provided to have remote annunciation of
the breaker feeders:
Breaker 'ON'
Breaker 'OFF'
Breaker 'TRIP'
Breaker 'Service'
Breaker 'Test'
13. Operating Mechanism:
Circuit breakers shall be provided with power operated mechanism of the
motor wound spring charging stored energy type with provision for emergency
manual charging facility.
For electrically operated ACBs closing of circuit breaker shall automatically
initiate recharging of springs and the motor shall be automatically decoupled
when the emergency manual charging handle is coupled.
The mechanism shall make one complete closing operation once the switch is
operated, even though the control switch is released before the closing
operation is complete, provided that there is no counter trips impulse.
New India Assurance
Page 50
Circuit breakers shall be provided with all necessary interlocks including the
following:
- It shall not be possible to plug-in a closed circuit breaker (in ON condition),
or to draw out a circuit breaker in the closed position.
- It shall not be possible to operate a circuit breaker unless it is in the fully
plugged-in, test, or fully isolated position
ii
MOULDED CASE CIRCUIT BREAKER:
1. The MCCB shall be 3 pole / 4 pole as the need be. In case of 4 pole MCCB, the
4th pole shall be 100% rated. The MCCB shall be available in fixed version. It
shall be possible to convert the MCCB from fixed to plug in/draw-out version. The
MCCB shall be manually operated. It shall be possible to convert the MCCB from
manually operated to motorized MCCB and vice-versa. Moulded case circuit
breakers (MCCB) shall have Thermal magnetic/Microprocessor-based release
with overload, short circuit & earth fault protection, as specified. The release shall
have communication in future if specified. The MCCB shall be suitable for
adapting accessories, such as auxiliary contact block, extended terminal cover &
phase barrier etc. MCCBs shall indicate its suitability for isolation and this should
appear clearly with the symbol as specified in standard IS 13947/IEC 60947.
2. The input and output terminals of the MCCB unit shall be extended and separated
so that aluminium cables of given sizes can be easily terminated in the panel.
3. The MCCB shall be provided with front drive mechanism with door interlock with
interlock defeating facility.
4. The MCCB shall be provided with variable range operating time on short circuit
(LSI).
5. The MCCB shall be provided with auxiliary contact block.
6. The MCCB shall be fully rated for 50oC ambient temperature.
iii
SWITCH FUSE UNIT:
1. The SDFs should conform to the requirements of IEC 60947-1 and IEC 60947-3
and also to IS 13947-1 and IS13947-3.
2. The life of SDF should be very high i.e. 25000 operations up to 160A, 20000
operation for current ratings up to 400A and 15000 operation for all ratings above
400A.
3. The SDFs should be available from 20A to 800A and SD from 63A to 1600A.
4. The SDFs should be available in DP, TPN and FP (with Switched Neutral) for
optimization in selection.
New India Assurance
Page 51
5. The SDFs should be compatible for all types of Fuses such as DIN, BS and
Cylindrical.
6. The SDFs should have isolable neutral which should be rated for 100% i.e. same
as main poles of SDF.
7. The SDFs should be “Suitable for isolation” and should clearly display with the
necessary symbol in accordance with standards IS 13947.
8. SDFs up to 160A should have provision of Padlocking in the basic switch.
9. The SDF shall have a rotary handle suitable for door mounting. This handle shall
be provided with door interlock and defeat, padlock and defeat facility. Operating
handle should have distinctly marked position for ON and OFF.
10. The shaft connecting rotary hand should be of telescopic type i.e. it should allow
user to readily use it for varying panel depth.
11. The SDF should have been tested for Type II coordination along with fuse and
contactor /Overload relay combination. There should be a published chart of typeII selection by the manufacturer.
12. The terminal of SDF should be suitable for termination of Aluminium bus bars and
lugs. The terminal size for SDFs rated up to 63A should be 15mm, up to 125A it
should be 20mm, up to 315A it should be 30mm and for 400A SDF terminal size
should be 40mm. For ratings more than 400A terminal size should be 55mm.
13. The SDF should have Positive OFF indicator. This indicator should be directly
coupled to the position of the moving contacts.
14. The SDF should come in IP20 execution i.e. Fuse cover, Terminal Cover and
Neutral Cover should come with SDF as standard.
15. There should be a provision of interlocking the fuse cover on the SDF such that
user should not be able to remove fuse cover when SDF is in ON position. This
interlocking facility should be supplied with SDF as standard.
16. The SDFs should be supplied with 5 nos. phase barriers up to current rating 160A
and 4 Phase barriers up to current rating 800A as standard. This is to ensure that
phase barriers not only prevent phase to phase short circuit but also prevent
access to live parts from two sides of the SDF.
17. The SDF should have self cleaning moving roller contacts to ensure high
switching life.
18. The SDF should be suitable for mounting at 900 in the vertical plane.
19. There should be provision in the SDF for installing fuse monitoring system. This
should be a standard feature of the product.
New India Assurance
Page 52
iv
MOTOR PROTECTION CIRCUIT BREAKER:
1. Motor starter shall be of Direct ON LINE (DOL), Automatic Star Delta type or
variable frequency drive type as ‘specified’. Star delta starters shall be provided
including and above 12.5 HP.
2. The contactor – MPCB combination shall be type tested for type-2 co-ordination at
50 kA. The MPCB shall sense the overload faults, however the tripping shall be by
the contactor only. MPCB shall trip only on short circuit faults.
3. Apart from MPCB above DOL starter shall have one number and star delta starter
shall have three numbers TP contactor suitable for AC-3 duty and electronic timer
in star delta starter.
4. Apart from MPCB above DOL starter shall have one number and star delta starter
shall have three numbers TP contactor suitable for AC-3 duty and electronic timer
in star delta starter.
5. The MPCB shall be fully rated for 50oC ambient temperature.
6. Each starter shall have auto/manual switch for selection & vendor shall provide
potential free contact to give status of following: Auto or Manual selection
On-Off - Trip
In case required auxiliary contact may be provided & this potential free contact
shall be wired up to terminal.
v
CONTACTORS:
1. Contactors shall be suitable for uninterrupted duty as defined in latest edition of
IS: 13947-4.
2. Contactors shall be of full voltage, direct online, air break, single throw,
electromagnetic type.
3. Operating coils of all contactors shall be suitable for operation on specified control
voltage.
vi
MINIATURE CIRCUIT BREAKER:
1. Miniature circuit breaker shall comply with IS-8828-1996/IEC 60898-1995.
2. Miniature circuit breakers shall be quick make and break type for 230/415 VAC,
50Hz application with magnetic thermal release for over current and short circuit
protection.
New India Assurance
Page 53
3. The breaking capacity shall minimum be 10 KA at 415 VAC. MCBs shall be DIN
mounted. The MCB shall be Current Limiting be type (Class – 3).
4. MCBs shall be classified (B, C, D ref IS standard) as per their Tripping
Characteristic curves defined by the manufacturer.
5. The terminals shall be protected against finger contact to IP20 Degree of
protection. All DP, TP and TPN miniature circuit breakers shall have a common
trip bar independent to the external operating handle.
vii
RESIDUAL CURRENT CIRCUIT BREAKER:
1. RCCB shall comply with IS-12640-1996/IEC 61008.
2. These shall work on the principle of core balance transformer.
3. In a fault-free system, the magnetizing effects of the conductors through which
current is flowing cancel each other out for the summation current transformer as,
in accordance with Kirchhoff’s current law, the sum of all currents is zero. There is
no residual magnetic field left that could induce a voltage in the secondary
winding. The unbalanced current shall generates a voltage in the secondary
winding, which then uses the release and the breaker mechanism to switch off the
electrical circuit.
4. RCCB shall be current operated independent of the line voltage; current sensitivity
shall be of 30 mA at 240/415 volts.
5. The moving contacts of the phases shall be mounted on a common bridge
actuated by a rugged toggle mechanism. Hence the closing / opening of all the
three phases shall occur simultaneously.
6. The neutral moving contact shall be so mounted on the common bridge that at
time of closing the neutral shall make contact first before the phases and at the
time of opening the neutral shall breaks last after allowing the phases to open
first.
7. Test button shall be provided to test the residual current protective device.
Pressing the test button generates an artificial residual current - the residual
current protective device must trip.
8. Due to the use of electronic components in household appliances and industrial
plants, insulation faults can also cause residual currents that are not AC residual
currents to flow through residual current protective devices, even in the case of
devices with ground terminals. Hence, Residual current protective devices that
trips for both sinusoidal AC residual currents and pulsating DC residual currents
(type A) shall be provided.
New India Assurance
Page 54
Note: All components like MCB, RCCB, RCBO etc. shall be offered with an ISI
marking. The manufacturer (through the bidder) has to submit the valid BIS
license certificate at the time of offer submission.
i
BIMETAL RELAYS shall be a combination of overload and single phasing
preventor. Those shall be hand reset type. For current ratings 100A & above,
CT operated relays shall be used. Long starting or saturating CT type BMR
shall be used
when called for.
ii
INDICATING LAMPS shall be rated for low watts, having ballast resistor to
drop 30% voltage, and suitable coloured lenses spreading glow in all
directions. Timers shall be channel mounted electronic /pneumatic with range
as specified.
10.
METERING & ACCESSORIES :
i
Current transformers shall be provided with ratio, VA burden and accuracy
class as per single line diagram or specific requirements.
Those shall be epoxy/ resign cast with secondary terminals mounted on the
body.
Loose hanging secondary leads are not acceptable. If provided,
those shall be terminated on a terminal block nearby and wiring neatly
dressed.
ii
Potential transformers shall be double wound with ratio, VA burden &
accuracy class as per SLD or specific requirements. Primary and secondary
fuses shall be provided as per rating.
iii
Control transformers and motor winding heater transformers shall also be
double wound having regulation less than 2%. Only primary side fuses are
considered adequate.
iv
Ammeters shall be MISC type, suppressed scale for motor feeders,
movement located in one corner for maximum scale length, other details as
per specifications. Alternatively, digital type instruments shall be provided, if
specifically called for.
v
Voltmeters shall be MISC type square pattern, with movement located in one
corner. Usual Voltage range shall be broadly expanded. E.g. For 0-500 V
voltmeter 350-450 volts range shall be wide spread.
vi
Wattmeter and power-factor meters shall be three phase, four wire, three
element, calibrated for CT ratio and PT ratio as shown in SLD.
New India Assurance
Page 55
vii
Frequency meter, shall be vibrating rid type or digital type. Pointer type meter
shall be provided, when called for. Any additional metering covering KWH
meters, DC meters, etc. shall be as shown in SLD.
11.
WIRING FERRULES AND TERMINALS:
i
Wires shall be PVC insulated 660 volts grade with coding as per IS 375.
POWER WIRES:
Colour coded R,Y,B, Black; or grey with coloured sleeves at both ends, size
to suit current rating with current density not more than 2 Amp per sq.mm.
Size & type of lugs shall suit equipment termination & shall be of crimping
type; tinned copper.
CONTROL WIRES:
Colour coding
= Grey or black AC 1.5 sq.mm. multi-strand.
= Red wires for DC circuits.
= Different colours for voltages other than above.
= Different colours for voltage when used for.
Two incomers and one bus-coupler, inter-panel wiring shall be red for incomer
1, Yellow for bus coupler, and blue for incomer 2 or prefixed with the breaker
designation.
For current transformers secondary, minimum 2.5 sq.mm. flexible copper
wires shall be used.
All wires on doors shall be multi-strand flexible.
Wiring shall be terminated with tinned copper, PVC sleeved crimping lugs,
type to suit the terminals of equipments at each end.
ii
Ferrules shall be yellow, Mel grip type, correctly fitting on outer diameter of
wires.
Ferrules shall read towards end termination. Ferrules ‘6’ and ‘9’ should not be
single used. However, may be used single when prefixed by letter e.g. K6, J9.
Method of ferruling, described in IS 375, shall be followed.
Equi-potential ferruling method shall be followed.
iii
Terminals shall be Elmex make, shrouded type, size to suit the wiring.
Miniature version of terminals not acceptable. When more than one wire is to
New India Assurance
Page 56
be terminated two terminals with fixed type shorting link shall be provided.
This is applicable for outgoing cable connections as well. Such linked
terminals shall bear same number.
All outgoing cable terminals shall be Elmex shrouding type CST up to 10
sq.mm. Bolted type connections with crimping lugs shall be provided for 16
sq.mm. and above. In case data regarding outgoing cables is not furnished,
vendor shall assume cable size as 1 amp per sq.mm., terminated with
crimping type lug of that size. e.g. 250 Amps switch-fuse unit outgoing
connection shall be done by 1 No. 240 sq.mm. or 2 nos. 120 sq.mm. cables in
parallel.
No un-shrouded live terminals shall be installed in Cable alley.
Minimum spacing of 150 mm shall be provided between gland-plate and
terminal strip up to 50 terminals in control panel. For terminals more than
50, space shall be increased to 200 mm to accommodate incoming cables.
Clearance between two rows of terminals shall not be less than 100mm. This
shall be especially applicable to Control desks/ common control panels.
Barrier Plate shall be provided after every 10 (Ten) terminals to avoid
parallax.
All C.T. Secondary terminals shall have 2 Nos. 4 sq.mm. terminals, shorted
with link, per C.T. to function as C.T. shorting/ test terminals.
iv
Control terminals, receiving potential from other sources shall be red or
painted red. Corresponding wiring shall also be red for fixed type of feeders.
12
MISCELLANEOUS:
i
Nameplates on all feeders feeder shall be rear engraved Perspex with white
letterson black background.
.
Two name plates on each feeder shall be provided, one reading feeder
number and other reading equipment reference and description for which the
feeder is designated. e.g. Feeder Name Plates 4 F3 and equipment reference
nameplate
‘P 103-- COOLING WATER PUMP’, shall be independent.
All similar name plates shall have some fixing screw dimension for
interchangeability.
Isolator ON-OFF nameplates shall be provided.
Caution Live terminals stickers in red to be provided at incomers/ other source
of supply. Also bus-bar chamber covers shall be affixed with such name
plates.
New India Assurance
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.
Any special caution boards inviting attention of operator shall be white letters
on red background. (e.g. Fire pump feeders, maintenance supply feeders
tapped before breaker, auto changeover feeders etc)
ii
440 volts caution stickers with skull and bones, shall be affixed on incomers,
bus-couplers and side faces of panels.
Iii
All hardware shall be passivated M.S. complete with plain and spring washers.
Head shall be hexagonal with screwdriver slot. End of bolt shall be conical
to serve as automatic guide and alignment. Captive washers shall also be
supplied. Bolts up to M12 shall have screw driver slot also.
iv
Accessories to be supplied with board.
a.
Grouting bolts.
b.
Fuse pullers – 2 nos.
c.
Circuit breaker operating handle (S)
d.
Touch-up paint (100 cc)
e.
Blocking plugs for gland entries/ slip-holes.
f.
10% door fixing knobs & gland plate fixing hardware.
g.
Lamp grip – 2 Nos.
h.
Blanking plates for short supplied meters/ relays.
i.
Panel to panel
hardware.
13.
52.
Ingress Production (IP): Degree of protection for indoor location-minimum IP
coupling gasket & bolts.
Corresponding bus-bar coupling
All doors and openings should be provide with neoprene gaskets to prevent
dust
entry. All cables alley should be provided with space heaters with thermostat
to
prevent moisture entry and condensation inside the panel
14
EARTHING:
i
Continuous earth-bus shall be provided all along the panel. Joints at coupling
faces shall be lap type with minimum two bolts.
ii
Size and material shall be designed to withstand ground fault for 1 sec. for
given fault level.
iii
All hinged doors shall be provided with fully welded boss and connected to
earth bus by flexible.
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iv
Colour coding for earth wires & bus bars shall be green or green with yellow
tracing.
v
All metal parts shall be ensured for earth continuity.
15.
DRAWINGS:
i
Vendor shall submit 4 prints of general arrangement drawing for review/
comments. Two prints will be returned with comments.
Fabrication can
proceed thereafter.
Six prints shall be submitted after fabrication.
ii
Iii
Control wiring diagrams shall be issued to successful bidder. In case vendor
wishes to make of his own, above procedure shall be followed.
For extensible boards, complete drawing showing
a.
Coupling bolts hooks with sizes.
b.
Bus-bar arrangement.
c.
Bolt holes and measurements of end faces.
d.
Location of insulated support from end face, etc. shall be submitted as
measured on shop floor during inspection.
16
INSPECTION :
i
Boards shall be inspected by Purchaser or his representative or by both.
ii.
Stage Inspection shall be carried out for boards before painting, with
components mounted in the modules/ feeders and one of each type
incomers/ bus-coupler.
Insulators and bus-bars shall be mounted on typical panel and risers. Also
bus work at bus-coupler shall be ready for inspection at this stage.
iii
Boards shall be tested for all electrical tests covering :
a.
Insulation resistance test by 500 volts Insulation Tester (megger).
b.
2.5 KV power frequency high voltage withstand for one minute.
c.
Insulation resistance test after HV test.
d.
Secondary injection test for relays.
e.
Current injection test and operating time at 2 and 5 times the set value of
BMR.
f.
Operation of Earth-leakage relay by 3 watt lamp.
New India Assurance
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g.
Operational test of feeders by simulating external field conditions.
iv
Test Certificates in six copies shall be submitted along with the equipment
APFC PANEL
SCOPE:
The scope of work under this section includes design, manufacture, assembly, testing
at manufacturer's works, inspection, packing for transportation, delivery at site,
installation, connection, testing and commissioning of Thyristor controlled zero crossing
Automatic Power Factor Correction Panel. Panel shall include all the specified Capacitor
banks, Switchgears, Control Gears, Busbars, meters, earthing, interconnections etc as
specified in the data sheets / BOQ / Schematics.
STANDARDS APPLICABLE:
All equipment, material and components shall comply with the
requirements of the latest editions of Indian Standards and Electricity Rules with updated
amendments. Standards and Regulations applicable in the area where equipment is to be
installed shall also be followed. The equipment offered complying with other standards;
shall be equal to or superior to those specified below:
IS 13340 &13341
Capacitors for power system
IS 13947
Low Voltage Switchgear and Control Gears Specifications
IS 8623
IS 5082
Low Voltage Switchgear and Control gear assemblies
General requirements for switchgear & control gear for voltage not
exceeding 1000V.
Degree of protection for enclosures for low voltage switchgear and control
gear.
Electrolytic Copper / Aluminium
IS 2705
Current Transformers
IS 3156
Voltage Transformers
IS 14697
AC Electric Meters
IS 3231
Electrical Relays for Power System Protection
IS 3043
Earthing
IS 2551
Danger Notice Plates
IS 2516
IS 8828
Circuit Breakers, voltages up to 1000 Volts
Air Break Switches, Air Break Disconnectors, for voltages not exceeding
1000V AC or 1200V DC.
Miniature Circuit Breakers for voltages not exceeding 1000V AC
IS 8544
Motor Starters for voltages not exceeding 1000 Volt A.C.
IS 2959
Contactors for voltages not exceeding 1000 Volt A.C or 1200 Volts D.C
IS 12640
Residual Current operated Circuit Breakers.
Marking & Arrangement for Switchgear, Bus Bars, main connections and
auxiliary wiring.
IS 4237
IS 2147
IS 4064
IS 375
New India Assurance
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GENERAL INSTRUCTIONS:
Submissions
 General Arrangement drawing of the Panel, showing front view, plans, overall dimensions,
foundation plans, floor cutouts / trenches for external cables and elevations, transport sections and
weights.

Schematic and control wiring diagram for circuit breaker and protection including indicating
devices, metering instruments, alarms and space heaters etc.

Terminal plans showing terminal numbers, ferrules markings, device terminal numbers etc.

Bill of Material and component lists along with makes for all the Panels

Following are the documents that shall be submitted along with the deliveries in 4 Sets:
1. Technical literature giving complete information of the components / equipment.
2. Erection, Operation and Maintenance Manual complete with all relevant information, drawings
and literature for auxiliary equipment and accessories, characteristics curves for relays etc.
3. A comprehensive spare parts schedule.
Design Basis
System will be designed with following factors:








System Voltage -
415 Volts
System Frequency
-
50 Hz.
No. of Phases
-
3 Phase, 4 Wire System
Fault Level
-
50 KA for 1 Sec.
Max. Ambient Temp.
-
50 deg.
System of Neutral
-
Solid Earth
Desired PF
-
Close to Unity
Enclosure
-
IP 54
CONSTRUCTION FEATURE:
General
The Thyristorised APFC Panel shall be suitable for operation with 415 Volts, 50 Hz. And 4 wire system.
The General construction of the Panels shall be factory assembled with fabrication processed on CNC type
or equivalent machines.
Panels shall be dead front totally enclosed, cubicle type suitable for floor mounted free standing / wall
mounted indoor installations. The design shall be totally dust - tight damp-proof and vermin proof offering
degree of protection not less than IP-54 for indoor applications.
Separate segregated compartments shall be provided for circuit breakers, bus bars, cable box, voltage
transformers, wire ways, relays, and instrument and control devices. Panel cubicles / modules shall be
provided with hinged doors in front and back with facility for padlocking doors. All doors, panels,
removable covers shall be provided with non deteriorating (neoprene) gaskets all around the perimeter.
Adequate size cable compartment should be provided for easy clamping of all the incoming and outgoing
cables irrespective of top or bottom entries.
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Floor mounted cubicles shall be provided with a 75mm high channel base frame. The total height of the
cubicle shall not exceed 2400mm unless specified, keeping in view the operating height of top switch should
not exceed 1750mm from floor level including base channel.
The switchgear cubicles shall be rigid and robust in design and construction fabricated out of CRCA sheet
steel. Cubicles shall be made from rigid welded structural frames made of structural steel sections or of
pressed / formed sheet steel of not less than 3mm thickness. The frames shall be enclosed by sheet steel of at
least 2mm thickness, smoothly finished, leveled and free from flaws. Stiffeners shall be provided wherever
necessary.
The Panels shall be readily extensible type from either side with provision of adding vertical sections after
removing of the side end covers.
After fabrication of the Panels, the entire structure shall undergo a 7 tank treatment for removing dust,
grease, rust etc. The Panels then should be powder coated with approved shade.
One Name plate giving designation of the MV Panel shall be affixed prominently on top of the switch board
describing the panel designation. These labels shall be of non corrosive material. All the feeders shall be
labeled with similar name plate indicating feeder no, name, rating (Amps / KW / HP etc.)
Capacitor Bank
Capacitor bank shall comprise of three identical single phase capacitors in case of thyristorised APFC
Panels. Capacitors shall be MPP type without degradation or loss of capacitance. The capacitor shall consist
of many such elements in series / parallel combinations for getting desired kVAr output. The dielectric
losses of capacitor shall be restricted to 0.5 watts per kVAr. The phase terminal connections of the capacitor
unit shall be brought out at the top, for suitable connections. The capacitor shall be provided with suitably
rated discharge resistor. The capacitor shall be provided with over pressure interrupter mechanism, which
will automatically disconnect faulty capacitor unit from the network without bursting, bulging or exploding
the capacitor.
Harmonic detuning reactors
Harmonic detuning reactors shall be placed in the circuit prior to capacitors to “detune” the capacitor bank to
below harmonic frequencies thus offering a low impedance path and filtering the harmonic currents.
The reactors must be selected in line with the inductance value to obtain the desired tuning frequency and
the current capability high enough for the harmonic current absorption that can be expected. Tuning
frequency is usually indirectly referred to as the detuning factor p and expressed as a percentage. (Value will
be in 5.67or 7 or 14)
If De-tuned reactor is described as 7%, infers that the reactor reactance is 7% of the capacitor reactance at
the fundamental frequency.
Construction wise, the core should be made from high quality and high permeability Silicon Grain Oriented
Laminated steel sheets and care fully stacked leading to low iron losses and filling factor. Suitably designed
core clamping system ensures an operation free from vibration and low noise. The windings should be made
from high quality copper in connection with cable lug terminals which very good connection with the power
cable.
Reactors shall be forced ventilated and shall be mounted on non-magnetic brackets to Eliminate eddy
currents and reduce heat loss.
Technical Data
 Type
 Tuned Frequency
New India Assurance
-
Dry Type, Air Cooled
189 Hz (7%) detuning
Page 62






Winding Temp rise
Insulation Class
Flux Density
Duty Cycle
Max. Permissible Voltage Power Frequency withstand
Not more than 40ºC
Class H - 180°C
< 0.80Tesla
100%
10% in excess of Rated Voltage
3 KV for 1 min.
Operation
The thyristorised switching system shall have following minimum features.
 Capacitor switching shall be at zero crossing and shall be smooth and surgeless
 No electromagnetic contactor/ relays/ moving parts shall be used in the switching circuit or parallel
to the switching device;
 Forced cooling system to thyristor shall be provided;
 Diagnostic capability shall be provided to analyse and indicate type of fault;
 Power factor controlling shall be on cycle-to-cycle basis. Proportionate correction or cutting A.C.
waveform will not be allowed;
 The controller shall be capable to work at phase to phase voltage between 200 to 440 volts;
 Digital controller shall be provided which minimum indication of line voltage and current,
capacitor current, Power factor, active power /reactive power/ apparent power, injected capacitive
kVAr, uncompensated capacitive kVAr, CT ratio selected, switching time;
 LED indication for capacitor bank step switch ON, power factor lag/lead shall be provided.
Protections





Over voltage protection.
Under voltage protection.
Over temperature protection.
Voltage imbalance protection in each phase.
Facility of manually operating capacitor bank on First-in-First out basis
Testing of Panels
Prior to dispatch the Panels / Panels out of the factory, each panel shall be tested (in presence of
representatives of the Purchaser if so required).
1.
2.
3.
4.
5.
6.
7.
8.
9.
All routine tests specified in relevant Indian shall be carried out on all circuit breakers.
Test for protective relay operation by secondary injection method.
Operation of all meters.
Insulation test with 1000 Volts megger, before and after voltage test.
HV test on secondary wiring and components on which such test is permissible (2 KV for one
minute)
CT Polarity test.
Tests to prove correct operation of controls, interlocks, tripping and closing circuits, indications,
etc.;
Interfacing test with BMS control function
All other tests required by the Engineer to verify compliance with the Specification.
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Site Tests
All the Panels shall be fully tested on site prior into putting into service to ensure that all items are in proper
working condition, correctly installed and free from damage.
An authorised testing Professional Engineer shall be engaged by the contractor to perform the site testing
and commissioning.
Functional Tests
Panels interlocking, emergency stop, door interlocks, temperature relays, their controls and all other
auxiliary equipment shall be operated to prove that they are functioning satisfactorily before the
transformers are put into service.
MEDIUM VOLTAGE CABLING
1.0
Scope
1.1
The scope of work shall cover supply, laying, connecting, testing and
commissioning of low and medium voltage power and control cabling.
2.0
Standards
2.1
The following standards and rules shall be applicable:
1)
IS: 1554 Parts I & II
All codes and standards mean the latest.
a
b
Nominal system voltage
Type of system earthing
3.3/6.6/11KV
Effitively or non
effectively earthed (EE/NEE)
c
Voltage grade of cable
d
e
f
Conductor
Insulation
No of cores
Earthed
or
unearthed
applicable
Stranded aluminum
XLPE
Single core,3cores
g
Screening
I Conductor screening
I insulation screening
Inner sheath for multicore cable
Amour (when required)
i Amour for multicore cables
ii Amour for single core cables
Outer sheath
Identification of cores
h
i
j
k
New India Assurance
Required
415Volts
Solidly earthed
as 1100 Volts
XLPE/Extruded PVC
Single core 3,3.5
and 4 cores
Not applicable
Extruded PVC compound
Galvanized round steel wire/steel
strip
Hard drawn aluminum wire/strip
Extruded black PVC compound
By numerals printed on the cores By coloring of PVC
Insulation
Page 64
3.0
Cables
3.1
All cables shall be 1100 Volt grade XLPE insulated (as specified), sheathed with
or without steel armouring as specified and with an outer XLPE protective sheath.
All cables shall have Flame Retardant, Low Smoke Sheath (FRLS) and meet,
ASTM norms for the smoke density and Oxygen Index norms. Cables shall have
high conductivity stranded Aluminium or copper conductors and cores colour
coded to the Indian Standards.
3.2
All cables shall be new without any kinks or visible damage. The manufacturers
name, insulating material, conductor size and voltage class shall be marked on
the surface of the cable at every 600mm centres.
4.0
Installation
4.1
Cables shall be laid in the routes marked in the drawings. Where the route is not
marked, the contractor shall mark it out on the drawings and also on the site and
obtain the approval of the Architect/Consultant before laying the cable.
Procurement of cables
shall be on the basis of actual site measurements and the quantities shown in the
schedule of work shall be regarded as a guide only.
4.2
Cables, running indoors shall be laid on walls, ceiling, inside shafts or trenches.
Single cables laid shall be fixed directly to walls or ceiling and supported at not
more than 500 mm. Where number of cables are run, necessary perforated cable
trays shall be provided wherever shown. Perforated cable trays shall be mild
steel or Aluminium as specified in the schedule of work. Perforated trays shall not
be directly suspended but supported on mild steel frame work as shown on drgs.
or as approved. Cables laid in built-up trenches shall be on steel supports.
Plastic identification tags shall be provided at every 30m.
4.3
Cables shall be bent to a radius not less than 12 (twelve) times the overall
diameter of the cable or in accordance with the manufacturer’s recommendations
whichever is higher.
4.4
In the case of cables buried directly in ground, the cable route shall be parallel
or perpendicular to roadways, walls etc. Cables shall be laid on an excavated,
graded trench, over a sand or soft earth cushion to provide protection against
abrasion. Cables shall be protected with brick or cement titles as shown on drgs.
Width of excavated trenches shall be as per drawings. Backfill over buried cables
shall be with a minimum earth cover of 600mm. The cables shall be provided with
cable markers at every 35 meters and at all loop points.
4.5
The general arrangement of cable laying is shown on drawings. All cables shall
be full runs from panel to panel without any joints or splices. Cables shall be
identified at end terminations indicating the feeder number and the
Panel/Distribution board from where it is being laid. All cable terminations for
New India Assurance
Page 65
conductors upto 4 sqmm may be insertion type and all higher sizes shall have
tinned copper compression lugs. Cable terminations shall have necessary brass
glands and all joints shall be double compression type whether so specified or
not. The end terminations shall be insulated with a minimum of six half-lapped
layers of PVC tape. Cable armouring shall be earthed at both ends.
4.6 Application for armoured and unarmoured cables
a
b
5.
Armored power and control cables should be used where
I Cables are laid fully outdoor, i.e connections from outdoor equipment to outdoor
equipment
ii
Cables are laid partly outdoor, i.e. connections from outdoor equipment to
indoor Equipment
Unmarmoured power and control cables should be used where cables are fully
laid indoors, i.e connections from indoor equipment to indoor equipment
Sizing Calculation
a
Power cables should be sized to meet the short to meet circuit for the expected
breaker operating time (0.2/0.6/1.0 secs as the case may be )
b
power cables should also be sized to carry the normal circuit load current without
exceeding the conductor temperature (70° for PVC and 90° for XLPE).
The derating factors to be considered for this purpose are ambient derating,
Group derating for laying conditions can be limited from 0.60 to 0.75. The higher
of the size obtained by the above two methods should be selected. For multiple
run cables, each run should be capable of meeting the short circuit withstand.
c
The size should be cross-checked for voltage drops, based on the application,
and should be increased, if need be, to limit voltage drops to desired levels
5.1 Control cables
The control cables should be according to the following specification:
a Applicable standard
b Voltage grade
c Conductor material
d Conductor size
e No of cores
f Insulation
g Inner sheath
h
Armour
wherever
I
Outer sheath
New India Assurance
IS 1554 (Part 1)
1,100 Volts
Annealed, high conductivity copper (stranded)
I ) 2.5 scam having 7 strands of 0.67mm dia
ii 1.5 scam having 7 strands of 0.5mm dia
iii 4.0 scam stranded conductor for CT leads
Multicore as required
Extruded PVC compound
Extruded PVC compound
Galvanised
around
steel
wire
/strips
required as per clause
Extruded black PVC compound
Page 66
5.3 Instrumentation cables
a
b
c
d
e
f
g
h
I
j
k
l
Conductor: Annealed tinned copper conductor in stranded circular construction of
0.8 or 0.5sq mm
Insulation: Extruded PVC or Elastomer
Insulation resistance: Minimum 500 megohm per km at 20°C
Core wrapping : By taping or extrusion of non-hydroscopic material
Core screening: By copper or copper laminated plastic tape
Rip cord: Non metallic under core wrapping
drain wire: Tinned copper wire of minimum 0.5 sq mm cross section in contact
with screen
Cabling elements: Two/three/four insulated conductors twisted together
Overall screening or individual pair screening : By tinned copper wire braids of
0.15mm diameter for minimum 85% coverage. Foil screen should not be used
Inner sheath if armouring is provided: Extruded PVC compound
Armour (if required): Galvanised steel wire/strip
outer sheath: Extruded grey PVC compound (Grey should be used to differentiate
this from power and control cable)
5.4. Design Checklist: sandwich/compact Busways
a
b
c
d
e
f
g
h
5.5
a
Application- for rising mains in hotels and multi-storey buildings like IT Parks
(where large lengths are involved and voltage drop is a criterion; these shall be
used in inaccessible heights or in places like cable shafts) also used in industrial
application where power supply to
large number of machines or machine tools are tapped.
Material of bus bars- Aluminums /Aluminums alloy/Copper
Material of busway enclosure: Extruded Aluminium ( Sheet steel
enclosures are also available but they are not acceptable)
Available ratings: 500A,25KA to 5000A, 65KA
Bus bar shape: Rectangular
Type and shape of bus way enclosure-rectangular shape, fin cooled
Hot spot temperature while carrying rated current
• Bus bars-maximum 95°C
• Enclosure –maximum 80°C
Bus insulation-Class B with limit of 135°. Material: Mylar or epoxy casting.
Painting
•Bus bars-unpainted
•Inside of enclosure – unpainted
•Outside of enclosure-unpainted or siemens Grey
Application guide for instrument cable
Separate cables should be used for analog and digital signals
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b
c
5.6
a
b
c
d
e
f
g
5.6.1
a
b
c
d
e
f
g
h
Overall screened cables may be used for digital contacts, analog signals above
100mv. RTDs, thermo couples. However, a manufacturer’s recommendation
should be obtained
Individual pair of screened cables should be used for digital pulse, low
level analog signals etc.
Bus Trunking
Application-for connections between transformer and switchgear
Material of bus bars-Aluminium/Aluminium alloy/Copper
Material of bus duct enclosure
• Steel sheet up to 3150 Amps rating
• Aluminium for ratings above 3150 Amps
Type and shape of bus duct enclosure –rectangular shape, phase segregated
with metallic barriers between the phases
Hot spot temperature while carrying rated current
•
Bus bars-maximum 85°C
•
Enclosures-maximum 70°C
Bus support insulators-porcelain or resin cast
Painting
•
Bus bars-one coat of matt black paint
•
Inside the enclosure-one coat of matt black paint
Sandwich/Compact Busways
Application-for rising mains in hotels and multi-storey buildings
and in specific cases for horizontal runs where space restrictions limit
use of multiple cable runs
Material of bus bars-Aluminium/Aluminium alloy/Copper
Material of busway enclosure: Extruded Aluminium (Steel sheet
enclosures are also available but they are not acceptable)
Available ratings: 500A, 25KA to 5000A, 65KA
Bus bar shape : Rectangular
Type and shape of Busway enclosure-rectangular shape, fin cooled
Hot spot temperature while carrying rated current
•
Bus bars-maximum 95°c
•
Enclosure –maximum 80°c
Bus insulation-Minimum Class B with limit of 135°
i
Painting
•
Bus bars-unpainted
•
Inside of enclosure –unpainted
•
Outside of enclosure-Siemens Grey
5.7
CONSTRUCTION CHECKLIST
The provision of the following construction features should be checked:
5.7.1
Bus Trunking
A
Wall frame assembly with seal off bushings duct-from indoor to
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Page 68
outdoor (not applicable for sandwich construction bus ducts
b
Flexible connections for bus bars and enclosure for connections to
transformer terminals
c
Bimetallic connectors wherever aluminium bus bars are connected to
equipment terminals made of copper
d
e
Flexible expansion joints
Inspection covers at the bottom side with stainless steel clamps and
gaskets
f
Silica gel breather
g
Drain plugs with porous filter element
h
Space heater,240V, single phase AC with MCB and thermostat control
i
Earth bus run all along the bus duct enclosure
5.8
Construction Check List: Sandwich busways
a
b
Indoor to outdoor wall seal off bushings
Flexible connections for bus bars and enclosures for connections to transformer
terminals
Bimetallic connectors wherever aluminium busbars are connected to equipment
terminals of copper
Flexible joints at both ends
Earth bus run along the busway and each transport section connected to the earth
bus
At equipment terminal end connections, Ph-Ph and Ph-E clearances of 25mm and
20mm shall be maintained.
In rising mains, the support on the first floor origin to be of fixed support and the
support and the supports at all upper floors shall be of flexible springs support
Tap-off box locations should have insulated covers, when not provided or
removed.
Tap-off box should be of bolted or plug-in type as specified.
c
d
e
f
g
h
i
5.9
INSTALLATION CHECKLIST
Implementation of the following installation requirements should be checked
5.10.
a
Mode of cabling laying
Switchyard and outlying areas
b
Indoor switchgear rooms
located in ground floor
New India Assurance
Cable trenches and/or directly
burled if no strong chemical
contaminants present in the soil
Cable trenches
Page 69
c
Process plants and utility
d
Conveyor belts
e
Road/rall crossings and
Oil/gas/water
Sewage pipes crossing
Cable trays with conduits for
branch off connections.
Cable trenches may be provided
wherever required
Cable trays run along conveyor
Structures
Through buried hume pipes or
overhead cable rack
f
Hotels
5.11
Directly burled cables
a
b
Minimum depth of burial should be 750mm for1100V grade cables and 900mm for
3.3/6.6/11KV cables
Cable route markers and protective covers should be provided
5.12
Cables laid in cable trenches
a
Dimensions of RCC cable trenches should be in accordance with the number of
cable racks to be provided
Cables should be laid on M S painted carrier racks supported from walls of the
trench
Outdoor cable trenches should have RC covers and in door cable trenches should
have chequered plats covers
b
c
Above false ceiling, laid in cable
trays supported from roof slab
5.13
Cables laid on cable trays/racks
a
Cable trays
i
Cable trays should be made of 14 gauge (2 mm) GI
sheet/Galvanised steel
ii
Standard dimensions should be as follows:
•
Width:150mm,300mm, 450mm, and 600mm
•
Height:50/75/100mm
iii
b
Ladder type trays should be used for power cables and perforated type for
control and instrument cables, Cable trays should be painted with one coat
of primer and two coats of paint
Cable installation on trays/racks
i HV cables should be laid in the bottom tier and cables of subsequent voltage
grades in higher tiers of trays.
ii
Control and instrument cables shall be laid in trays separated from power
cable trays
New India Assurance
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iii
iv
v
Power cables should be laid in a single tier only in each tray/rack
Control and instrument cables can be laid up to two layers in each tray/rack
Single core cables should be laid in trefoil group with a spacing equal to
diameter of the cable (1D) between edges of the trefoils.
These should be held on tray/racks by trefoil clamps
Vi
3 core HV cables should be laid with 1D spacing
Vii
3 core and 4 core MV cables should be laid in touching formation
Viii
All cables should be secured on the cable trays/racks
5.14
Bending radius of Cables
The bending radii for cable should not be less than:
Voltage Rating (KV)
Up to 1.1
Above 1.1
PVC & XLPE Cables Armoured/Unarmoured
Single Core
Multi Core
15 D
12D
15D
15D
Where D is the outer diameter of the cable
5.14.1 Cable Installation Practices
a
b
c
d
e
f
g
h
Cables to each circuit shall be laid in one continuous length. Cable jointing and
splicing should be avoided
The following clearances should be kept between different types of cables:
i Power cable to control cable
200mm
ii Power cable to communication cable for multi core power cables for single 300
mm
Core power cables
460 mm
iii Power cable to gas/water pipes
300 mm
All cables should be secured by clamping along walls, ceilings, columns,
structures etc., and on emerging from trenches, trays, Embedded conduits before
they are connected at equipment terminals/junction boxes. They should also be
tied with nylon cord on horizontal cable trays and clamped on vertical raceways at
regular intervals
All cables should be tagged. The tags should be put at 30 meters interval on long
runs of cable
Cables above false ceilings should be clipped along walls or taken on trays
suspended from ceiling
Where joints become necessary, the same should be done by proper connectors.
Taped joints in cables/wires should not be permitted
Termination
• All cable terminations should be of the solerless crimping type
• Identification tags made from aluminum sheet should be attached to each end
of each cable by means of GI wire
All floor and wall openings for cable trays should be sealed by fire proof
compound
i Waterproof sealing should be done for pipe inserts in floor slab,
walls etc
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5.14.2 Terminations and joints
a
HV Terminations and joints
I The cable terminations and cable joints for 6.6KV to 33KV systems should be
of the heat shrinkable type. Stress control and stress grading, wherever
necessary, in the terminations and joints should be by means of semi-conducting
heat shrinkable tubing
ii The cable should be clamped securely before it is taken in to termination or
joints kits
iii The armour of the cable should be connected to the earth bus
iv For outdoor installation, outdoor type cable termination kit should be used
5.14.3 Cable glands
a
b
c
Cable glands for both HV and MV systems should be cadmium nickel plated and
passivated to protect against corrosion and chemical vapours. The glands should
be of the double seal cone grip type
For hazardous areas, flameproof glands should be used
The cable glands should be suitable for various types and sizes of cables used
5.14.4 Cable luge
a
The cable lugs for connecting the cables to equipment terminals should be of the
tinned copper, compression type suitable for the specified conductor sizes
b
The current rating of the lugs should be the same as that of the Respective cable
conductors
c
The bolted power cable connections at the equipment terminals should be
covered with removable shrouds to prevent contact with live parts
5.14.5 Earthing
A
The armour of multi core power and control cables should be earthed at both
equipment and switchgear end
b
The armour of single core power cables should be earthed at switchgear end
c
For instrumentable cables, the screens/shield should be earthed at both ends. To
avoid circulating current through the shield, equiv. potential bonding of the
enclosures at both the ends should be done. However, if circulating current is
experienced, the earthing should be done according to the manufacture’s
recommendation
d
The cable tray sections should be bonded together and cable trays should be
earthed at every 10 meter length
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Page 72
5.14.6 us Trunking
a
Phase sequence
Phase sequence of the connected equipment should be the same
b
Joints
i Tightness of all bus bar joints should be checked with a torque wrench
ii Carefully check expansion joints in the bus ducts enclosure, if such joints are
provided
iii Outdoor bus ducts enclosure joints carefully be water tight
c
Earthing of bus duct enclosure
i An earth bus should be run along the entire length of the bus enclosure
ii Each section of the enclosure should be bonded to the earth bus
iii The bus duct support structure should be bonded to the earth bus
iv The earth bus should be connected to the earth grid at minimum two points.
However for long bus ducts, the earth bus should be connected to the earth grid
at intervals of 10 metres
5.14.7 Installation Check List
a
Phase sequence
Phase sequence of the connected equipment should be same
b
Joints
i Tightness of all bus bars joints shall be checked with a torgue wrench.
ii Checked carefully expansion joints in the busway for tightness, if such joints are
provided.
c
Earthing of busway enclosure
i An earth bus shall be run along the entire length of the bus way
ii Each section of the enclosure shall be bonded to the earth bus
5.15
O & M CHECKLIST
The following checks and tests should be carried are and record should be maintained
including records of repairs and maintenance works carried out
5.16
a
b
Monthly checks
I
General
• Check the route for buried cables. If any portion of the cable has been
exposed due to soil erosion, gardening etc, take remedial measures to
bury and cover it properly
ii
HV Cable boxes
• Check general condition of boxes and clean them
• Check for leakage of compound, for compound filled boxes
• Check for flashover marks near the insulators and earthing bonds
Half Yearly Checks on HV Cables Boxes
i
Clean insulators and repair chipped spots
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ii
Check compound level and fill up to the proper level
iii
Tighten connection, bolts and screws in the dividing box
iv
Check earth connections for tightness and earth resistance for the
supports structure
c
Annual checks for HV and major 415V cables
i Check insulation resistance
ii Check cable terminals and tighten connections
5.16
a
Cable trays and trenches
Annual Check
i Clean all cable trays and trenches
ii Check earthing connections of all cable trays
5.16.1 Bus Trunking
a
Annual Check
i Clean the interior of the bus duct and support insulator
ii Check the insulators for any breakage/cracks
iii Tighten all bolted joints on the bus bars
iv Tighten all bolted joints on the bus enclosure
v Check that all earth connections are tight and in order
5.16.2 O & M Checklist : Sandwich Subways Annual
a
Megger test
b
High voltage test 2.5 kv for one min
6.0
Testing
5.1
MV cables shall be tested upon installation with a 500V Meggar and the following
readings established:
1)
Continuity on all phases
2)
Insulation Resistance
(a)
between conductors
(b)
all conductors and ground
All test readings
documentation.
shall be recorded and shall form part of the completion
7.0
Mode of measurement
6.1
Cable will be measured on the basis of a common rate per unit length indoor or
outdoor and shall include the following:
For cables laid indoors:
i)
Cables and clamps
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ii)
Installation, commissioning and testing
iii)
Cable marking
OR
For cable buried underground :
i)
Cables and protective bricks & tiles
ii)
Installation, commissioning & testing
iii)
Cable markers
6.2
Cable trays/racks will be measured on the basis of unit length for individual sizes
and shall include
i)
Aluminium perforated tray M.S framing supporting the Aluminium tray.
ii)
Installation and painting in 2 coats of black bituminous paint on one coat of red
oxide primer.
6.3
Each cable termination will be measured as one unit for payment. Certain cable
sizes are grouped together and rates shall be furnished against each group. The
item shall include the following:
i)
Lugs, glands, bolts, nuts
ii)
All jointing materials
iii)
Installations, testing and commissioning
iv)
Earthing the glands
6.4
For cables buried under ground excavation shall be paid for additionally for the
following per unit volume :
i)
Excavation and back filling
ii)
6” Soft Earth Cushioning below and above cable
The cost of laying protective tiles shall be part of cable cost as stated above.
DISTRIBUTION BOARDS
1.0
1.1
Scope
The scope of work shall cover the supply, installation, testing and commissioning
of lighting and power distribution boards. Associated minor civil works required for
the erection of the DB’s such as opening in wall etc. are also included in the
scope of this contract.
2.0
2.1
Standards
The following standards and rules shall be applicable:
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1)1111)
IS:2675-1983
Enclosed distribution fuse boards and cutouts for
Voltages not exceeding 1000V.
2)2222)
IS:375-1963
Marking and arrangement of Switchgear busbars
main connec- tions and auxiliary wiring.
3)3333)
IS:8828-1978
Miniature circuit Breakers
4)4444)
IS:2607-1976
Air break Isolators for voltages not exceeding
1000V.
5)5555)
IS:9926-1981
Fuse wire used in Rewirable type Electric fuses up
to 650 volts.
666666)
Indian Electricity Act 1910 and rules issued there under.
2.2
All codes and standards mean the latest. Where not specified otherwise the
installation shall generally follow the Indian Standard Codes of Practice.
3.0
3.1
Distribution Boards
Distributions boards along with the controlling MCB’s or Isolator as
shown shall be fixed in a mild steel Box with hinged lockable door suitable for
recessed mounting in wall. Distribution boards shall be made of 16 SWG sheet
steel duly rust inhibited through a process of degreasing, acid pickling, phosphate
and powder coated to an approved color over a primer.
All components shall be mounted on DIN rails and covered totally with a sheet
steel cover rendering it finger-safe. Access to the internal connections shall be
only through removing the cover sheet.
Three phase boards shall have phase barriers and a wire channel for internal
wiring. All DB’s shall be internally prewired using copper insulated high
temperature PVC wires brought to a terminal strip of appropriate rating for
outgoing feeders.
Conduit knockouts shall be provided as required/shown on drawings and the
entire board shall be rendered dust and vermin proof with necessary sealing
gaskets.
MCB’s shall have quick make and break non-welding self wiping silver alloy
contacts for 9KA short circuit both on the manual and automatic operation. Each
pole on the breaker shall be provided with inverse time thermal over load and
instantaneous over current tripping elements, with trip-free mechanism. In case of
multiple breakers, the tripping must be on all the poles and operating handle shall
be common. Breakers must conform to IS 8828 with facility for locking in OFF
position. Pressure clamp terminals for stranded/solid conductor insertion are
acceptable upto 4 sqmm Aluminium or 2.5 sqmm copper and for higher ratings,
the terminals shall be suitably shrouded. Wherever MCB isolators are specified
they are without the tripping elements.
Fuses shall be HRC link type or rewirable with necessary fuse carriers and
with S.C rating of not less than 50 KA. Bottle type fuses are not acceptable. Fuse
carrier terminals shall be suitably shrouded. Rewirable fuse carriers shall be
porcelain.
Boards shall meet with the requirements of IS 2675 and marking arrangement of
busbars shall be in accordance with IS 375. Bus Bars shall be of copper and
3.2
3.3
3.4
3.5
3.6
3.7
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rated for the incomer switch rating and sized for a temperature rise of 30 deg. C
over the ambient. Neutral and earth bars shall be of copper and rated as follows:
Neutral
Earth Bar
LDB’s
Same as phase
Same as phase
PDB’s
1.5 x phase bar
Same as neutral bar
3.8
3.9
3.10
3.11
4.0
4.1
4.2
4.3
5.0
5.1
5.2
There shall be one earth terminal for single phase boards and 2 for 3 phase
boards. Circuit diagram indicating the load distribution shall be pasted on the
inside of the DB as instructed.
In the case of MCB distribution boards, the backup fuses wherever shown shall be
not less than 63A with a delayed characteristic and a minimum prearcing time of
0.5 sec. at 9 KA fault current.
All outgoing feeders shall terminate on a terminal strip which in turn is prewired to
the MCB/Fuse base by means of insulated single conductor high temperature
PVC copper wires as follows:
LDB’s
2.5 sqmm
PDB’s Upto 15A 4.0 sqmm
25A 6.0 sqmm
Each DB shall have indicating lamps preferably neon type denoting power
availability in the board after the switch. Indicating lamps shall be complete with
fuses.
In the case of Dimmer DB’s, the DB’s shall incorporate the Dimmer panels as a
part of the DB generally as shown on drawing and as approved.
Installation & Testing
All distribution boards shall be mounted on wall or recessed, with necessary
angle iron frame work. All mounting frames shall have one prime coat and two
finish coats after the completion of the work. All distribution boards shall be
touched up for damaged painting.
All boards shall be meggared phase to phase and to neutral using 1000V megger
with all switches in closed position. the megger value should not be less than 2.5
megohms between phases and 1.5 megohms between phase and neutral.
Fabrication drawings of all boards shall be approved by the Consultants before
fabrication and the boards inspected before dispatch, unless waived in wiring.
Mode of measurement
The distribution board complete with the various components specified, indicating
lamps, supporting frame, internal wiring, erection etc., will be treated as one unit
for the purpose of measurement and payment.
`DB’s with dimmers shall be separately counted.
CONDUIT WIRING
1.0
1.1
2.0
2.1
Scope
The scope of work shall cover supply, installation testing and commissioning of all
conduit wiring.
Standards
The following standards and rules shall be applicable
1)1111)
IS: 732 Code of Practice for Electrical wiring installation (System
voltage not exceeding 650V)
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2)2222)
IS: 1646
Code of Practice for fire safety of building (General)
Electrical Installation.
3)3333)
IS: 3480
Flexible steel conduits for electrical wiring
4)4444)
IS: 3837
Accessories for rigid steel conduit for electrical wiring
5)5555)
IS: 694
PVC insulated cables
6)6666)
IS:6946
Flexible (Pliable) non-metallic conduits for electri-cal
installation
7)7777)
IS: 1293
3 pin plugs and sockets
8)8888)
IS:8130
Conductors for insulated electric cables and flexi-ble cord
9)9999)
IS: 9537
1980
Specification for conduits for Electrical installa-tions
10)1010)
Indian Electricity Act 1910 and rules issued thereunder.
11)1111)
2.2
3.0
3.1
i)
ii)
iii)
Regulations for the electrical equipment in buildings issued by the
Tariff Advisory Committee of the Insurance Association of
India.
All standards and codes mean the latest.
Rigid and Flexible conduits
Conduits can be
mild steel - black enamelled
mild steel - galvanised
Rigid PVC
as specified and required by the schedule of work. Wall thickness in each case
shall be as follows:
Steel
Black
enamelled
Galvanised
(a) Up to 40 mm dia
1.4 to 1.8
1.4 to 1.8
Up to 25
(b) Over 40 mm dia
1.6 to 2.2
1.6 to 2.2
32 & Over 2.8 mm
New India Assurance
PVC
2.1 mm
Page 78
3.2
3.3
PVC conduits shall be used only where the conduits are embedded in concrete or
wall chases.
Flexibility conduits shall be formed from a continuous length of spirally wound
interlocked strip steel with a fused zinc coating on both sides. The conduit shall be
terminated in brass or PVC adapters. PVC flexible conduits shall not be used.
4.0
4.1
Accessories
Conduit fittings such as bends, elbows, reducers, chase nipples, split couplings,
plugs etc. shall be heavy duty specifically designed and manufactured for their
particular application and in accordance with relevant I.S.S. Wherever galvanised
conduits are specified in the schedule of work, the fittings also shall be
galvanised; Likewise PVC fittings.
5.0
5.1
Wires
All wires shall be single core multi-strand copper or single strand Aluminium. PVC
insulated to IS: 694 and shall be 1100V grade as specified and required in the
schedule of wok.
All wires shall be colour coded as follows :
Phase
Colour of wire
R
Red
Y
Yellow
B
Blue
N
Black
Earth
Green (insulated)
Control
(If any)
Grey
5.2
6.0
6.1
6.2
6.3
7.0
7.1
Switches & Sockets
Switches shall be moulded plate type of modular design with silver-plated
contacts. Sockets shall be 3 pins with switch and plate type cover. All switch &
socket mounting boxes shall be 16 SWG galvanised steel or PVC specially made
for the switches and sockets used. Combination of multiple switch units and
sockets should be used in appropriate manner to minimise the switch boxes.
Weather and waterproof switches / sockets shall be used in all out door situations
and bathrooms.
For heavy duty, metal clad sockets with m.c.b. isolator mounted in a gal-vanished
steel box shall be provided.
Installation
The size of conduit shall be selected in accordance with the number of wires
permitted under table given below. The minimum size of the conduit shall be 20
mm Dia unless otherwise indicated or approved. Size of wires shall be not less
than 1.5 mm copper or 2.5 sq.mm aluminium, but as specified in the schedule of
work.
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Page 79
Nominal
dia of
wires (mm)
7.2
7.3
1)
2)
3)
4)
5)
6)
7)
7.4
7.5
7.6
7.7
Nominal
Cross sec.
area(sqmm)
1/2.40
1.50
1/1.80
2.50
1/2.24
4.00
1/2.80
6.00
1/3.55
10.00
S- runs of conduits which have distance not exceeding 4.25 m between draw
boxes & which do not deflect from the straight by an angle more than 15 degree.
B- runs of conduits, which have, deflect from the straight by more than 15 degree.
Conduits shall be kept at a minimum of 100 mm from the pipes of other nonelectrical services.
Separate conduits / raceways shall be used for each of the following :
Normal lights and 5A 3 pin sockets on lighting circuit
Power outlets - 15A 3 pin 20A / 30A 2 pin +scraping earth metal clad sockets
Emergency lighting
Telephones
Fire alarm system
Public address system &
Call bell wiring
Conduit layout shall be generally as indicated on drawings and the layout shall be
supplemented and complemented by contractor on site with the approval of the
Engineer.
Wiring for short extensions to outlets in hung ceiling or to vibrating equipments,
motors etc., shall be installed in flexible conduits. Otherwise rigid conduits shall be
used. No flexible extension shall exceed 1.25m.
Conduits run on surfaces shall be supported on metal 12 mm thick saddles
which in turn are properly screwed to the wall or ceiling. Saddles shall be at
intervals of not more than 500 mm. Fixing screws shall be with round or cheese
head and of rustproof materials. Exposed conduits shall be neatly run parallel or
at right angles to the walls of the building. Unseemly conduit bends and offsets
shall be avoided by using fabricated mild steel junction/pull through boxes for
better appearances. No crossover of conduits shall be allowed unless it is
necessary and entire conduit installation shall be clean and neat in appearance.
Conduits embedded into the walls shall be fixed by means of staples at not
more than 500 mm intervals. Chases in the walls shall be neatly made and refilled
after laying the conduit and brought to the finish of the wall but final finish will be
done by the building contractor.
Conduits buried in concrete structure shall be put in position and securely
fastened to the reinforcement and got approved by the Engineer, before the
concrete is poured. Proper care shall be taken to ensure that the conduits are
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7.8
7.9
7.10
8.0
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
neither dislocated nor choked at the time of pouring the concrete. Suitable
galvanized steel fish wires of not less than 0.63 mm dia shall be drawn in all
conduits before they are embedded. Where conduit passes through expansion
joints in the building, adequate expansion fittings shall be used to take care of any
relative movement.
Inspection boxes shall be provided for periodical inspection to facilitate withdrawal
and removal of wires. Such inspection boxes shall be flush with the wall or ceiling
in the case of concealed conduits. Inspection boxes shall be spaced at not more
than 12 meters apart or two 90 degree solid bends or equal. All junction and
switch boxes shall be covered by 6mm clear Perspex plate truly cut and fixed with
cadmium plated brass screws. These junction boxes shall form part of point wiring
or conduit wiring as the case may be including the cost of removing the Perspex
cover for painting and refixing. No separate charges shall be allowed except
where specially mentioned.
Conduits shall be free from sharp edges and burs and the threading free from
grease or oil. The entire system of conduits must be completely installed and
rendered electrically continuous before the conductors are pulled in. Conduits
should terminate in junction boxes of not less than 32mm deep.
An insulated earth wire of not less than 2.5 sq.mm aluminium or copper shall be
run in each conduit as specified in the schedule of work.
Lighting & Power Wiring
All final branch circuits for lighting and appliances shall be single conductor cables
run inside conduits. The conduit shall be properly threaded and screwed into
sockets, bends, and junction boxes. No part of the wiring shall be open without a
suitable conduit piping.
Branch circuit conductor sizes shall be as shown in the schedule of quantities and
or drawings.
Final branch circuits shall preferably be kept in a separate conduit up to
the Distribution Board. No other wiring shall be bunched in the same conduit
except those belonging to the same phase. Each lighting branch circuit shall not
have more than ten outlets whichever is lower or as shown on drawings. Each
conduit shall not hold more than three branch circuits.
Flexible cords for connection to appliances, fans and pendants shall be
660/1000V grade (three or four cores i.e. with insulated neutral wire of same size)
with tinned stranded copper wires, insulated, twisted and sheathed with
strengthening cord. Colour of sheath shall be subject to the Engineer’s approval.
Looping system of wiring shall be used. Wires shall not be jointed. Where joints
are unavoidable, they shall be made through approved mechanical connectors.
No such joints shall be made unless the length of the sub-circuit, sub-main or
main is more than the length of the standard coil.
Control switches shall be connected in the phase conductors only and
shall be ‘ON’ when knob is down. Switches shall be fixed in 3 mm thick galvanised
steel boxes with cover plates as specified. Cadmium plated brass screws shall be
used.
Power wiring shall be distinctly separate from lighting wiring. Conduits not
less than 25 mm and wires not less than 2.5 sq.mm aluminium/copper shall be
used as specified in the schedule of work.
Every conductor shall be provided with identification ferrules at both ends
matching the drawings.
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9.0
9.1
a)
i)
ii)
b)
c)
Testing
The entire installation shall be tested for :
Insulation resistance
Between phases
Between each phase and earth
Earth continuity
Polarity of single pole switches
No installation shall be commissioned unless and until the insulation resistance is
2.0 mega ohms between phases and 1.0 mega ohms between phase and neutral.
All tests shall be witnessed by the Engineer-in-charge and attested.
A test certificate shall be submitted as per IS 732.
10.0
Mode of measurement
Measurement as per site.
POINT WIRING
SCOPE:
The scope of work under this section includes supply, installation testing and
commissioning of Point wiring or internal wiring as required for lighting and small power
sockets. This shall include conducting, sub mains wiring or primary point wiring,
secondary point wiring, switches, sockets, plug tops, electronic fan regulators, outlet
boxes and all other wiring accessories to complete the job.
STANDARDS APPLICABLE:
All equipments, material and components shall comply with the requirements of the latest
editions of Indian Standards and Electricity Rules with updated amendments. Standards
and Regulations applicable in the area where equipment is to be installed shall also be
followed.
The equipment offered complying with other standards; shall be equal to or superior to
those specified below:
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IS 1653
Code of Practice for Electrical wiring installation (System voltage
not exceeding 650V)
Specification for conduits for Electrical installations
Code of Practice for fire safety of building (General) Electrical
Installation.
Rigid steel conduits for electrical wiring
IS 2667
Fittings for rigid steel conduits for electrical wiring
IS 3480
Flexible steel conduits for electrical wiring
IS 3837
Accessories for rigid steel conduit for electrical wiring
IS 694
PVC insulated wires.
IS 2509
Rigid non-metallic conduits for Electrical wiring
IS 6946
Flexible (Pliable) non-metallic conduits for electrical installation
IS 1293
3 pin plugs and sockets
IS 8130
IS 3854
Conductors for insulated electric cables and flexible cord
Switches for domestic and similar purposes.
IS 3419
Fittings for rigid non-metallic conduits.
IS 4648
Guide for electrical layout in residential building.
IS 4649
Adopters for flexible steel conduits.
IS 5133
Boxes for enclosures of the Electrical.
IS 4615
Switch socket outlets.
IS 8884
IS 2551
Code of practice for installation of Electric bells and call
system.
Electric Danger notice plates.
IS 3646
Code of practice for interior illumination.
IS 371
Ceiling Roses.
IS 302
IS 3043
General and safety requirements for household and similar
electrical appliances.
Code of practice for earthing.
IS 5216
Guide for safety procedures and practices in electrical work.
IS 732
IS 9537
IS 1646
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GENERAL INSTRUCTIONS:
Ratings and the circuiting of wiring system shall be as indicated on the drawings. It is
solely the responsibility of the Contractor to carry out site survey, coordinate and check
the location of these facilities and make any necessary adjustment modifications with the
consultants / project manager’s approval.
Submissions

Manufacturer / Supplier / Contractor shall submit type test certificates issued by a
National or International Testing Authority for all the equipments and material.

Shop Drawings/As built drawings of the lighting and power positions, circuit
numbers, cable routings, switching arrangement, mounting height, etc. The
positions and mounting heights shall be coordinated with other services.

Sample submission include all wiring accessories

Following are the documents that shall be submitted along with the deliveries in 4
Sets:
1. Technical literature giving complete information of the components / equipment.
2. Erection, Operation and Maintenance Manual complete with all relevant
information, drawings and literature for auxiliary equipment and accessories,
characteristics curves for relays etc.
3. A comprehensive spare parts schedule.
Design Basis





System will be designed with following factors:
System Voltage
415 Volts
System Frequency 50 Hz.
No. of Phases
3 Phase, 4 Wire
System of Earthing Solid Earth
Max. Ambient Temp. 50 deg.
New India Assurance
Page 84
System of Wiring
The point wiring system shall be rated for a voltage of 650/1100 Volts. This shall consist
of PVC insulated FRLS wires in PVC conduits wherever wiring is on surface and in heavy
duty rigid PVC conduits wherever wiring is concealed.
Point wiring system shall cover the requirements of indoor and outdoor lighting as
specified in the Schedule of Quantities.
Submains wiring will be 1 Phase ,this will be from the Distribution Board to individual
switchboards.& from 1st switchboard to next Switchboard.
Point wiring shall be from SB to point .sometimes it will be from DB to Light points.
MATERIAL
Conduits
Conduits required for point wiring shall be GI wherever wherever wiring is concealed is on
surface and in heavy duty rigid PVC conduits.
Wires
Wires shall be 1100V grade, FRLS, single core multi-strand copper PVC insulated as
mentioned in the Schedule of Quantities
Colour Codes shall be strictly followed such that for R phase shall be coded Red, for Y
phase -Yellow, B phase – Blue, Neutral – Black, Earth – Green and for Control – Grey.
Outlet Boxes
The outlet boxes for switches, sockets, power outlets, telephone outlet, etc., shall be of
same make as of switches/sockets etc. These shall be either concealed or surface
mounted.
The boxes shall be fabricated out of heavy gauge CRCA cold rolled carbon alloy sheet
steel with zinc plating (G.I). The size of boxes should match the type of outlet/switch
plate to be mounted on the box.
The outlet box shall be of minimum depth of 50mm. Boxes shall be suitable for
grid mounting type of accessories and shall be suitable to fix the conduits of required
sizes. Separate screwed earth terminal shall be provided in the box for earthing
Switches
Switches shall be single pole, single or two ways mentioned in the Schedule of
Quantities. They shall be of modular type rated for 250V, 5/15A. They shall be provided
with insulated dollies and covers.
New India Assurance
Page 85
The switches shall be rocker operated with a quiet operating mechanism with
bounce-free, snap acting mechanism in an arc resistant chamber. The switches shall
have pure silver and silver cadmium contacts.
Switches installed outdoors shall be industrial, metal clad type, and shall be provided
in weather-proof enclosure, complete with weather proof gasketed covers.
Switch Plates
Switches/sockets/wiring devices plates shall be of the same make as of switches /sockets
/wiring devices. These shall be of best quality. Moulded plastic grid mounting type device
plates/frames shall be used and these shall match with the type of switches/sockets and
boxes.
Receptacles
Each socket shall be provided with control switch of appropriate rating. The sockets
shall be moulded type rated for 250 volts and of 6 A or 16 A capacity as mentioned in the
Schedule of Quantities.
The 16 Amps sockets shall be multi pin (6 pin) automatic shutter type suitable for
plugging 6 A/16 A plugs. The shutter shall open when the earth pin of the plug is
inserted in the socket. Where called for, the 16 A socket shall have indicating lamp. The
socket outlets and switches shall be of grid mounting type.
The socket outlets installed outside the building/open to sky or in damp/wet areas shall of
weather-proof, water-tight type.
Load Balancing
Balancing of the circuits shall be planned by the contractor in coordination with the
consultants before execution of the work.
New India Assurance
Page 86
INSTALLATION
The size of conduit shall be selected in accordance with the number of wires permitted
under table given below. The minimum size of the conduit shall be 20 mm dia unless
otherwise indicated or approved. Size of wires shall be not less than 2.5 sq. mm or as
mentioned in Schedule of Quantities
Nominal CrossSectional Area of
Conductor In
Sq.mm
Conduit Size
20mm
25mm
32mm
38mm
51mm
64mm
S
B
S
B
S
B
S
B
S
B
S
B
2.50
5
3
8
6
12
10
----
--
--
-
--
--
4
3
2
6
5
10
8
---
----
--
--
--
--
6
2
--
5
4
8
7
----
---
---
---
---
--
10
2
--
4
3
6
5
8
6
---
--
--
--
16
--
--
2
2
3
3
6
5
10
7
12
8
25
--
--
-
--
3
2
5
3
8
6
9
7
Conduits shall be kept at a minimum of 100 mm from the pipes of other non-electrical
services.
Separate conduits / raceways shall be used for each of the following:
 Normal lights and 5A 3 pin sockets on lighting circuit
 Power outlets - 15A 3 pin, 20A/ 32A industrial outlets.
 Emergency lighting
 Telephones & Data
 Fire alarm system, Public address system
 Call bell wiring
Shop drawing for Conduit layout shall be prepared by the contractor taking into account
the site conditions and got approved before proceeding with the work. Wiring for short
extensions to outlets in hung ceiling or to vibrating equipments, motors etc., shall be
installed in flexible conduits. No flexible extension shall exceed 1.25m in length.
Conduits run on surfaces shall be supported on galvanised steel 6 mm thick saddles
which in turn are properly screwed to the wall or ceiling. Saddles shall be at intervals of
not more than 500 mm. Fixing screws shall be with round or cheese head and of
cadmium plated brass.
Exposed conduits shall be neatly run parallel or at right angles to the walls of the building.
Unseemly conduit bends and offsets shall be avoided by using fabricated galvanised
steel junction/pull through boxes for better appearances. No cross-over of conduits shall
be allowed unless it is necessary and entire conduit installation shall be clean and neat in
appearance.
New India Assurance
Page 87
Conduits concealed into the walls shall be fixed by means of staples at not more than 500
mm intervals. Chases in the walls shall be neatly made and refilled after laying the
conduit and brought to the finish of the wall but final finish will be done by the building
contractor.
Conduits buried in concrete structure shall be put in position and securely fastened to the
reinforcement and got approved by the Engineer, before the concrete is poured. Proper
care shall be taken to ensure that the conduits are neither dislocated nor choked at the
time of pouring the concrete.
Suitable galvanised steel fish wires of not less than 0.63 mm dia shall be drawn in all
conduits before they are embedded. Where conduit passes through expansion joints in
the building, adequate expansion fittings shall be used to take care of any relative
movement.
Inspection boxes shall be provided for periodical inspection to facilitate withdrawal and
removal of wires. Such inspection boxes shall be flush with the wall or ceiling in the case
of concealed conduits. Inspection boxes shall be spaced at not more than 12 meters
apart or two 90 degree solid bends or equal.
All junction and pull boxes shall be covered by 6mm clear perspex plate truly cut and
fixed with cadmium plated brass screws. These junction boxes shall form part of point
wiring or conduit wiring as the case may be including the cost of removing the perspex
cover for painting and re-fixing. No separate charges shall be allowed except where
specially mentioned.
Conduits shall be free from sharp edges and burs and the threading free from grease or
oil. The entire system of conduits must be completely installed and rendered electrically
continuous before the conductors are pulled in. Conduits should terminate in junction
boxes of not less than 32mm deep and the termination shall be rigid with check nuts and
a smooth bushing. No wires shall be exposed in any part of the installation.
An insulated earth wire of not less than 2.5 Sq.mm copper shall be run in each conduit as
mentioned in the Schedule of Quantities.
Testing
All tests as per relevant IS shall be conducted and shall be witnessed by the Project
Manager.
All the Cables shall be tested upon installation with a 1000 V Megger and the following
readings established
 Continuity on all phases
 Insulation Resistance - between conductors
 Insulation Resistance - all conductors and ground
No installation shall be commissioned unless and until the insulation resistance is 2.0
mega ohms between phases and 1.0 mega ohms between phase and neutral. All test
readings shall be recorded in the separate book and the same to be handed over to the
Client.
New India Assurance
Page 88
LIGHT FIXTURES
1.0
1.1
1.2
2.0
2.1
2.2
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Scope
The scope of work shall cover the supply, installation and testing of fluorescent
and incandescent light fixtures and ceiling fans.
Where fixtures are supplied, the scope shall cover installation only with all the
accessories as specified in the schedule of work.
Standards
The following standards and rules shall be applicable:
IS 3646 - 1968
Code of practice for interior illumination
IS 1913 - 1969
General and Safety requirements for
electric lighting fittings.
IS 8030 - 1976
Luminaries for Hospitals
IS 374 - 1966
Electric ceiling type fan & regulators.
Indian Electricity Act and Rules issued thereunder.
All codes and standards mean the latest. Where not specified otherwise
the installation shall generally follow the Indian Standard Codes of Practice.
General Requirements
All fixtures shall be complete with accessories and fixings necessary for
installation whether so detailed under fixture description or not.
Fixture housing, frame or canopy shall provide a suitable cover for the fixture
outlet box or fixture opening.
Fixtures shall be installed at mounting heights as detailed on the drawings or
instructed on site by the Architects/Consultants and individually earthed with 2.5
Cu wire.
Fixtures and/or fixture outlet boxes shall be provided with hangers to adequately
support the complete weight of the fixture. Design of hangers and method of
fastening other than shown on the drawings or herein specified shall be submitted
to the Architect/Consultant for approval.
Pendant fixtures within the same room or area shall be installed plumb and at a
uniform height from the finished floor. Adjustment of height shall be made during
installation as per Architect’s/Consultant’s instructions.
Flush mounted and recessed fixtures shall be installed so as to completely
eliminate light leakage within the fixture and between the fixture and adjacent
finished surface.
Fixture mounted on outlet boxes shall be tightly secured to a fixture stud in the
outlet box. Extension pieces shall be installed where required to facilitate proper
installation.
Fixture shall be completely wired and constructed to comply with the regulations
and standards for Electric Lighting Fixtures, unless otherwise specified. Fixtures
shall bear manufacturer’s name and the factory inspection label unless otherwise
approved.
Wiring within the fixture and for connection to the branch circuit wiring shall be not
less than 1.5 sqmm copper for 250 volt application. Wire insulation shall suit the
New India Assurance
Page 89
3.10
3.11
3.12
3.13
3.14
3.15
3.16
1)
2)
3)
4)
4.0
4.1
4.2
temperature conditions inside the fixture and wires bypassing the choke shall be
heat protected with a heat resistant sleeve.
Metal used in lighting fixtures shall be not less than 22 SWG or heavier if so
required to comply with the specification or standards. Sheet steel reflectors shall
have a thickness of not less than 20 SWG. The metal parts of the fixtures shall be
completely free from burrs and tool marks. Solder shall not be used as
mechanical fastening device on any part of the fixture.
Ferrous metal shall be bonderized and given a corrosion resistant phosphate
treatment or other approved rust inhibiting prime coat to provide a rust-proof base
before application of finish.
Non-reflecting surfaces such as fixture frames and trim shall be finished in baked
enamel paint.
Light reflecting surface shall be having a reflection factor of not less than 80%. All
parts of reflector shall be completely covered by finish and free from irregularities.
Finish shall be capable of withstanding 72 hours continuous exposure to an
ultraviolet sun lamp placed 10 cm from the surface
without
discoloration,
hardening or warping and retain the same reflection factor after exposure. Test
results shall be furnished for each of fixtures.
Fixture with visible frames shall have concealed hinges and catches. Pendant
fixtures and lamp holders shall be provided with ball type aligners or similar
approved means. Recessed fixtures shall be constructed so as to fit into an
acoustic tile ceiling or plaster ceiling plaster rings/flanges shall be provided for
plaster ceiling. Fixtures with hinged diffuser doors shall be provided with spring
clips or other retaining device to prevent the diffuser from moving.
Detailed catalogue cuts for all fixtures, or, if so required by the Architect/
Consultants sample fixtures shall be submitted for approval to the
Architect/Consultants before orders for the fixtures are placed. Shop drawings for
non-standard fixture types shall be submitted for approval to the
Architect/Consultant.
Recessed fixtures shall be constructed so that all components are replace- able
without removing housing from the ceiling.
Lamp shall be supplied and installed in all lighting fixtures furni-shed under this
contract. All lamps shall be rated for 250 volts.
Lamps used for temporary lighting service shall not be used in the final lamping
of fixtures units.
Lamps shall be of wattage and type as shown on the drawings and schedule.
Where not shown, the details shall be ascertained from the Architect/Consultant
before procurement.
Lamps for permanent installation shall not be placed in the fixtures until so
directed by the Architect/Consultant, and this shall be accomplished directly
before the building portions are ready for occupation.
Fluorescent fittings
Only single and /or two lamp ballast shall be used in any one fixture. All ballasts
shall be low loss electronic ballasts unless specified otherwise.
All fluorescent fixtures shall be provided with separate wiring channel with cover
plate and an earth terminal. All screws shall be chromium brass screws. Lamp
and starter holders shall be out of tough moulded plastic with spring loaded rotor
type contactors rendered shock and vibration proof. Condensers shall be low loss
New India Assurance
Page 90
4.3
4.4
paper impregnated hermetically sealed complying with IS 1969-196. Internal
wiring shall be neatly clipped and where by passing the ballast, a suitable heat
resistant barrier or sleeve shall be provided.
Surface mounted fixtures longer than two feet shall have one additional point of
support besides the outlet box fixture stud when installed individually. Pendant
individually mounted fixtures four feet long and smaller shall be provided with twin
stem/conduit hangers. Stems shall have ball aligners or similar devices and
provided for a minimum of 25 mm vertical adjustment. Stems shall be of
appropriate length to suspend fixtures at required mounting height.
Lamps shall have bi-pin bases and a minimum approximate rated and guaranteed
life of 30,000 hrs. Colour spectrum of light shall be equivalent to ‘Philips White.’
Lamp or warm white, or eq.starter and ballast shall match the lamp.
5.0
Incandescent fittings.
5.1
Incandescent fittings shall be of the type generally specified on the drawings.
Contractor should have sample approved by Architects / Consultant before procurement.
5.2
Incandescent fixtures shall be equipped with porcelain, medium base, screw type
sockets for lamps uo to and including 200watt & mogul screw type base for lamps
300 watt & over.
5.3
Relamping the fixture shall be possible without having to remove the fixture from
its place.
5.4
Incandescent lamps shall be inside frosted or clear type as required by the
Architect / Consultants.
7.0
7.1
7.2
7.3
Mode of measurement
Each fixture shall be measured as a unit complete with accessories, lamp,
connectors, earthing, mounting arrangement, clamps etc.
Suspension stems for light fittings shall be measured as bare conduits and paid at
the rate per unit length.
Where light fixtures are supplied by the client, the installation shall be paid per unit
and the cost shall include all suspension, and installation materials
EARTHING SYSTEM
1.0
Scope
1.1
The scope of work shall cover earthing stations, laying G.I. / pipes and
connecting the power panels, DBs and switch boards.
2.0
Standards
2.1
The following standards and roles shall be applicable:
1)
IS:3043 - 1966 Code of Practice for earthing.
2)
Indian Electricity Act and Rules
2.2 All codes and standards mean the latest. Where not specified otherwise the
installation shall generally follow the Indian Standard Code of Practice..
New India Assurance
Page 91
3.0
Maintenance free chemical Earthing Station
3.1
The earthing station shall be as shown on the drawing. The earth electrodes
shall be 40 mm dia GI/CU pipes plate. The earth resistance shall be
maintained with a suitable crystalline conductive materials and back fill
compound.
3.3
The resistance of each earth station should not exceed 1 ohms.
3.4
The earth lead shall be connected to the earth pipe through copper/brass
bolts.
3.5
The chemical earth station shall be as shown on the drawing and shall be
used for equipment protective earth grid.
3.6
The earth electrodes shall be galvanized pipes 3.0 long with 40 mm dia.
3.7
Crystalline Conductive material-Mixture of nature minerals and a
chemical compound, highly conductive and non corrosive, which prevents the
inner pipe from corrosion and dissipates the current evenly.
3.8
Back fill compound - Moisture retaining compound having 13 times more
(Hygroscopic) water retaining capacity than its dry volume.
3.9
The earth lead shall be fixed to the pipe with a clamp and safety set screws.
The clamps shall be permanently accessible.
4.0
Earth leads and connections
4.1
Earth lead shall be bare copper or aluminium or galvanised steel as specified
with sizes shown on drawings. Copper lead shall have a phosphor content of
not over 0.15 percent.
4.2
All earth strip shall be jointed as follows:
Copper
: Copper riveting with 80mm
fish plate and brazing
Aluminium
:
Riveting with 2Nos 100mm long bimetal
fish plates using copper rivets
Galvanised
: Lap welding with 50mm minimum lap
Steel
4.3
All strips shall be run on walls/beams with 6mm thick galvanised steel earth
saddles at 500mm centre to centre as shown on drawings.
5.0
Equipment earthing
5.1 All apparatus and equipment transmitting or utilising power shall be earthed in
the following manner:
New India Assurance
Page 92
Size of phase conductor
Copper
Aluminium
Galvanised
steel
Upto 16
<
Same
>
1.55
Over 16 to 35
<
16
>
32
Over 35
Minimum (base)
Minimum (enclosed)
<
2.5
2.5
As shown on drgs.
>
4.0
6
2.5
-
The protective earth continuity conductor may be drawn inside the conduit in
which case, it should be insulated.
Copper earth wires shall be used where copper wires are specified.
Aluminium wires may be used where aluminium phase wires are specified
unless otherwise indicated in the schedule of work and drawings.
5.2
Metallic conduit shall not be accepted as an earth continuity conductor. A
separate insulated/bare earth continuity conductor of size related to phase
conductor shall be provided. Non-metallic conduit shall have an insulated
earth continuity conductor of the same size as above. All metal junction and
switch boxes shall have an inside earth stud to which the earth conductor shall
be connected. The earth conductor shall be distinctly coloured (green) for
easy identification.
5.3
Armoured cables shall be bonded to the earth by 2 distinct earth connections
to the armouring at both the ends and the size of connection being as above.
In multiple cables entering a panel/DB, the cable joints shall be bonded
together using a bonding wire selected on the basis of the largest size of cable
in the group. In the case of unarmoured cable, an earth continuity conductor
shall either be run outside along the cable or should form a separate insulated
core of the cable. 3 Ph. power panels and distribution boards shall have 2
distinct earth connections of the size correlated to the incoming cable size.
In case of 1 Ph. DB’s a single earth connection is adequate. Similarly for 3
Ph and 1 Ph. isolating switches there shall be 2 and 1 earth connections
respectively, sizes being correlated to the incoming cable.
5.4
3 Ph. motors and other 3 Ph. apparatus shall have 2 distinct earth connections of size equal to incoming feeder size.
For 1 Ph motor and 1 Ph
apparatus, the single earth connections shall be provided of the above size.
6.0
Electrical Installation
6.1
All work shall be carried out in accordance with local Electrical Inspectorate,
and IS Code of Practice 732. Reference to above codes, specifications and
regulations shall mean the latest.
6.2
All materials used on the installation shall be new and of approved make.
Tenderer should indicate makes of materials proposed to be used on the job.
New India Assurance
Page 93
7.0
Testing
7.1
The following earth resistance values shall be measured with an approved
earth meggar and recorded.
1)
Each earthing station
2)
System as a whole
3)
Earth continuity
8.0
Mode of measurements
8.1
Providing earthing station complete with excavation, electrode, watering pipe,
soil treatment, masonry chamber with cast iron cover etc. shall be treated as
one unit of measurement.
8.2
The following items of work shall be measured and paid per unit length
covering the cost of the earth wires/strips clamps, labour etc.
8.3
(a)
Main protective earth terminal and connections to the earthing stations
(b)
Connections to the switchboard, power panels, distribution boards etc.
The cost of earthing the following items shall become part of the cost of the
item itself and no separate payment for earthing shall be made.
(a)
Motors - earthing forming part of the cabling/wiring for the motors.
(b)
Isolating switches and starters should form part of mounting frame,
switch starter etc.
(c)
Light fittings - form part of installation of the light fittings.
(d)
Conduit wiring - should form part of the wiring
(e)
Cable armouring - should form part of the cable termination.
(f)
Street lighting - should form part of the external cable which shall
incorporate a protective earth-conductor which shall be used for
earthing of the pole etc.
New India Assurance
Page 94
NoteConsultant has taken ulmost care of quantifying work. However verification / confirmation
of BOQ in terms of totality of numbers OR sizing
OR length is responsibility of vendor to complete the work. No claim extra what-so
ever will be entertained for extra cables or electrical accessories"
Each DB panel will have at least two/three spare feeders available for further installation
changes after current installation.
Load enhancement from present 72 kVA demand from RELIANCE to new specified
range will be dome by the vendor.
Only statutory charges against this load enhancement will be paid by the client.
DATE: 15/06/15
PROJECT: LIC OFFICE,MUMBAI
SERVICES: LT ELECTRICAL SYSTEMS FOR OFFICE AREA
PRICE SUMMARY
SR. NO.
DESCRIPTION
A)
LV SWITCHBOARDS
B)
LT CABLING
C)
EARTHING
D)
POINT WIRING
E)
DISTRIBUTION BOARDS
F)
LIGHT FIXTURE
Note-
AMOUNT
TOTAL
Total amount excluding taxes
New India Assurance
Page 95
DESCRIPTION
A)
UNIT
QUAN
TITY
MAKE
SUPPLY
INSTALL
ATION
L.V SWITCHBOARDS
MCCB - 1. ABB
2. SIEMENS
3. SCHNEIDER
ELECTRIC
4. GE(RECORD
PLUS)
5. MITSUBISHI
ELECTRIC
MCB - 1. ABB
2. SIEMENS
3. SCHNEIDER
ELECTRIC
4. GE POWER
CONTROL
5. MDS LEGRAND
6. HAGGER
7. KLOCKNER
MOELLER
POWER & AUXILIARY
CONTRACTORS 1. ABB
2. SIEMENS
3. SCHNEIDER ELECTRIC
4. GE POWER CONTROL
5. MITSUBISHI ELECTRIC
ISOLATORS/CHANGE
OVER SWITCH
1. ABB
2. SIEMENS
3. SCHNEIDER ELECTRIC
4. BCH
5. HAVELLS
6. ASCO
New India Assurance
Page 96
AMOUNT
SURGE ARRESTER1. ABB
2. SIEMENS
3. SCHNEIDER ELECTRIC
4. FURSE
5. OBO BETTERMAN
6. MDS LEGRAND
7. EMERSON
ANALOUGE & DIGITAL
METER1. ENERCON
2. SIEMENS
3. SCHNEIDER ELECTRIC
4. AE
5. IMP
6.MECO
7. ABB
8. RISHABH
SELECTOR SWITCHS,LED
LAMPS1. AREVA
2. SIEMENS
3. SCHNEIDER ELECTRIC
4. KEYCEE
a)
Design, Assembling,
Supply, Installation,
Testing and
Commissioning of following
LV Switchboards and
Switchgears
suitable for 415 Volts, 3
phase 4 wire, 50 Hz power
distribution
System. In conjunction with
general specifications
following points
Should also be considered
and adhered to.
1) All the Switchboards
shall be Indoor type, dust
and vermin proof
type compartmentalised
design maintaining IP 54
degree of
Protection.
2) Switchboards shall be
free standing floor mounted
or wall
Mounted as required.
3) All the Switchboards
shall be of
compartmentalised with
entire
New India Assurance
Page 97
fabrication in 14 Gauge
Sheet Steel and Powder
Coated with
Siemens gray paint shade
no. RAL-7032 of IS-5.
4) All hinged door shall be
earthed through 2.5 sq mm
tinned
Copper wire. Doors shall
be pad locking type
whereas for MCCB
Compartments they should
be openable only in switch
OFF mode.
5) All the busbars and links
shall be of copper with
colour coded
heat shrinkable insulating
sleeves. Separate earth
busbars shall be
provided along the length
of the switchboards.
6) All measuring
instruments (Meters) shall
be of digital electronic
with LED display of
approved make and
compatible with IBMS /
BAS.
7) Adequate additional sets
of C.T.s, potential free
contacts,
connectors, contactors with
wiring etc are to be
provided for IBMS
including space required
for various transducers.
8) Adequate space for
cable entries and
terminations shall be
provided refering SLDs.
Cable entries can be either
from the top or
bottom as required.
9)All Incomer and outgoing
feeder shall be Rs485 port
compatible.
10) All panel switches with
locking arrangement.
11) All types of switches,db
mcb's require lockout
mechanism
1
MAIN LT PANEL as per
New India Assurance
No
1
Page 98
schematic
2
ROIII OFFICE PANEL as
per schematic
No
1
3
DOI OFFICE PANEL as
per schematic
No
1
4
DOII OFFICE PANEL as
per schematic
No
1
5
DOIII OFFICE PANEL as
per schematic
No
1
6
THYRISTOR
APFC PANEL
schematic
No
1
6
BREAKERS
ENCLOSURE
a
63 A TPN MCB IN
M.S.Enclosure (IP65) -for
HVAC OUTDOOR UNIT
No
9
BASED
as per
IN
TOTAL CARRIED OVER
TO SUMMARY
SR.
NO.
B)
1
DESCRIPTION
UNIT
QUANTITY
MAKE
SUPPLY
INSTALLAT
ION
LT CABLING SYSTEM
Supplying, laying, testing and
commissioning of 1100V grade
A2XFY
armoured
AL
conductor/2XFY
type
copper
conductor cable.The cable shall be
laid on appropriate size of cable
tray with all accessories as
required.
1. CCI
2. NICCO
3. Asian
(RPG)
4.
Polycab
5. Torrent
6. Lapp
Kabel
7.
Universal
i
3.5 Core 185 Sq.mm Al Armoured
Cable
Rm
145
ii
3.5 Core 120 Sq.mm Al Armoured
Cable
Rm
25
iii
3.5 Core 35 Sq.mm Al Armoured
Cable
Rm
75
iv
4 Core 6, Sq.mm Cu Armoured
Rm
175
New India Assurance
Page 99
AMOUNT
Cable
v
4 Core 4, Sq.mm Cu Armoured
Cable
2
Supplying and Installation of cable
terminations for the above cables
including double compression type
chrome plated brass glands and
bimetallic lugs (crimping type),
PVC taping as required and all
accessories complete.
Rm
125
Cable
Gland1. Baliga
2.Comet
3. SMI
Bimetallic
Cable Lugs1. Dowells
2.Jainson
i
3.5 Core 185 Sq.mm Al Armoured
Cable
No
8
ii
3.5 Core 120 Sq.mm Al Armoured
Cable
No
2
iii
3.5 Core 35 Sq.mm Al Armoured
Cable
No
6
iv
4 Core 6, Sq.mm Cu Armoured
Cable
No
18
v
4 Core 4, Sq.mm Cu Armoured
Cable
No
16
3
PERFORATED
TRAY
TYPE
CABLE
CABLE
TRAY- 1.
PROFAB
2. MDS
LEGRAND
Supplying
and
Installation
of
Pregalvanised
factory
fabricated
Perforated type GI cable trays with
50mm height & 2mm thick. The tray
shall be suspended from ceiling using
anchor bolt and angle iron supports or
mounted from wall. The rate shall
include all accessories like radial
bends, elbows, tees, coupler plates,
etc., which will be measured as linear
measurement and fixing accessories.
New India Assurance
Page 100
i
ii
Supply,Installation of perforated
type cable tray-100mm wide
Rm
50
Supply,Installation of perforated
type cable tray-200mm wide
Rm
50
TOTAL CARRIED
SUMMARY
SR.
NO.
OVER
TO
DESCRIPTION
UNIT
QUANTITY
MAKE
SUPPLY
INSTALL
ATION
AS PER
IS 3043
C)
EARTHING STRIP/WIRE
A
Supply and laying sleeve earthing
conductors of Copper / GI
strips,wires including necessary
accessories, clamping to walls,
cables etc.as required and
interconnection between lengths
as per specifications and as per
good installation practice. Prices
should include all supports,
accessories
and
hardware
necessary for proper installation.
i
25 x 3 mm thick GI Strip
Rm
50
ii
10 SWG Bare GI Wire
Rm
RO
iii
10 SWG Bare Cu. Wire
Rm
RO
iv
8 SWG Bare GI Wire
Rm
75
TOTAL CARRIED OVER TO
SUMMARY
New India Assurance
Page 101
AMOUNT
SR
.
NO
.
DESCRIPTION
D)
POINT WIRING
A
CONDUIT WIRING
UNIT
QUANTITY
MAKE
SUPPLY
INSTALL
ATION
PVC Insulated
Copper
Wire(FRLS)1.CCI,NICCO,As
ian
(RPG),Polycab ,
Finolex,
National, Lapp
Kabel, RR
Kabel, Lapp
Kabel
Switches &
Sockets- ABB,
Siemens,
Schneider, and
any other UL/CE
certified product
PVC HMS/GI
Conduit- Lapp
Kabel, BEC,
AKG, Steelcraft
Any reputed
make meeting
BIS
requirements
Conduit wiring for lights, socket
outlets as per the mode of
measurements described in the
specifications consisting of :
i
Supply, Installation, Testing of
One Way light point wiring from
switchboard to light point with 3 x
1.5sq.mm
insulated
copper
conductor 1100 volts grade stranded
flexible FRLS wires already laid in
20/25 mm heavy duty PVC conduit
concealed / embeded in walls .This
shall include installation of 6 A single
way modular switch, 2 mm thick GI
concealed
box
and
other
accessories such as bends, junction
boxses,
New India Assurance
Nos
50
Page 102
AMOUNT
saddles, spacers, switch plates,
angle holders, ceiling roses etc.
as required to complete the
wiring.(Rate excluding PVC
CONDUIT) (Average Lenght6Mtr)
ii
iii
Supply, Installation,Testing of
One Way light point (2 nos
light point controlled by 1 no
switch) wiring from switchboard
to light point with 3 x 1.5sq.mm
insulated copper
conductor
1100 volts grade stranded
flexible FRLS wires already laid
in 20/25 mm heavy duty PVC
conduit concealed / embeded in
walls
.This
shall
include
installation of 6 A single way
modular switch, 2 mm thick GI
concealed
box
and
other
accessories such as bends,
junction
boxses,
saddles,
spacers, switch plates, angle
holders, ceiling roses etc. as
required to complete the wiring.
(Rate
excluding
PVC
CONDUIT) (Average LengthPrimary
Point
6Mtr
and
Secondary Point 5Mtr)
Supply, Installation, Testing of
AC
point
wiring
from
switchboard to AC power point
with 2 x 2.5 + 1x 1.5sq.mm
insulated copper
conductor
1100 volts grade stranded
flexible FRLS wires already laid
in 20/25 mm heavy duty PVC
conduit concealed / embeded in
walls
.This
shall
include
installation of 6 A single way
indicator modular switch, 2 mm
thick GI concealed box and other
accessories such as bends,
junction
boxses,
saddles,
spacers, switch plates, angle
holders, ceiling roses etc. as
required to complete the wiring.
(Rate excluding PVC
New India Assurance
Nos
21
Nos
22
Page 103
CONDUIT) (Average Lenght6Mtr)
iv
Wiring for all Light/power points
using 2x2.5 + 1x1.5PE Cu FRLS
Wires in necessary conduit
contactor shall be consider two
to three circuits in single
conduits wherever possible from
DB'S including of submains
wiring.(Rate excluding PVC
CONDUIT)
B
Supply and installation of HMS
PVC conduit embedded in floor,
wall, ceiling with all accessories
such as , saddles, spacers,
junction box, bends etc.
including all civil works like wall
chipping and finishing etc.,
a
b
c
20 mm dia HMS PVC Conduit
25 mm dia HMS PVC Conduit
32 mm dia HMS PVC Conduit
C
Supply,Installation,Testing of
switch sockets with back box
etc. complete with earthing.
i
ii
Rm
2200
Rm
Rm
Rm
RO
1200
RO
5A plate type switch + 5 A plate
type socket (Half Point)
Nos
35
5A plate type socket.(Individual
Point for AC)
Nos
42
TOTAL CARRIED OVER TO
SUMMARY
New India Assurance
Page 104
DESCRIPTION
SR.
NO.
UNIT
QUA
NTIT
Y
MAKE
SUPPLY
E)
DISTRIBUTION BOARDS
1
Supply, Installation, Testing
and Commissioning of the
following Distribution Boards
(IP42) fabricated in sheet steel
with phase copper bus bars,
neutral and earth bar with
tapped holes, cutouts for
operating the MCB knobs in
the inner cover, bakelite phase
barriers,
double
door
construction, powder coated
with approved shade and
partitions to segregate phases
etc. DB's shall be suitable for
single
phase/3
phase
operation. DB's shall be flush
mounted to brick wall or
surface mounted as required.
Distribution Board1MDS
Legrand
2
Siemens
3 Schneider Electric
4
Hager
5
Hensel
(polycarbonate)
6
Rittal
7
Elsteel
8
ABB
9 Sintex (for outdoor
LP Testlink boxes)
All types of switches,db mcb's
require lockout mechanism
MCB/ELCB1
ABB
2
Siemens
3 Schneider Electric
4 GE Power Controls
5 MDS Legrand(Lexic
range)
6
Hagger
7 Klockner Moeller
i
ii
Distribution Board(4 Way
TPN DB)
Incomer
40A,
10
KA,
TPN
,MCB+ELCB(30mA)-1
Outgoings10 Amps, 10 KA, SP MCBs 12 nos.
Distribution Board(8 Way
TPN DB)
Incomer
40A,
10
KA,
TPN
,MCB+ELCB(30mA)-1
Outgoings10 Amps, 10 KA, SP MCBs 24 nos.
New India Assurance
No
7
No
1
INSTALL
ATION
Page 105
AMOUNT
Distribution Board(12 Way
TPN DB)
Income
40A,
10
KA,
TPN
,MCB+ELCB(30mA)-1
Outgoings10 Amps, 10 KA, SP MCBs 36 nos.
iii
No
1
TOTAL CARRIED OVER TO
SUMMARY
SR.
NO.
F)
DESCRIPTION
UNIT
QUANTITY
LIGHTING FIXTURES
Supply, Installation, testing and
commissioning of following type
of light fixtures as per drawings
and specifications with all other
accessories such as supporting
rods / frames, anchor fasteners,
necessary hardware etc. The
rate shall include for fittings
along with transformers where
required,
diffuser,
chokes,
starter,
power
factor
improvement capacitors, wires,
down rods etc., complete with
all accessories to complete the
installation as required.
MAKES
SUPPLY
INSTAL
LATION
Wipro,Phili
ps,Bajaj,C
G
Supply ,Installation, testing &
commissioning of light Fixtures
complete with:
a)
All fixing accessories &
mounting bracket.
b) Earthing of fittings.
c) Connections from the ceiling
rose or junction box of the fitting
will be provided by others.
1
3x 14 Watt Mirror Optic Light
No
199
2
1X24 Watt T5 Tube Light
No
40
TOTAL CARRIED OVER TO
SUMMARY
New India Assurance
Page 106
AMOUNT
All in All annual maintenance
cost including consumables
and spares for 5 years after
expiry of warranty period
Year
1
2
3
4
5
TOTAL of AMC for 5
yrs
HOWEVER THE OWNER HOLDS THE RIGHT
TO ADD / DELETE ANY ITEM FROM THE
CONTRACTORS SCOPE IF HE SO DESIRES.
DATE:
SIGN:
COMPANY
SEAL :
DESIGN
ATION:
New India Assurance
Page 107
GENERAL TECHNICAL SPECIFICATIONS
FOR FALSE CEILING
New India Assurance
Page 108
SPECIFICATION FOR CEILINGS – FINE FISSURED BUTT EDGE WITH XL 24 MM
GRIDS
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
or equivalent make World Industries
using hot dipped galvanized steel section, exposed surface with pre-coated capping,
main tee of size 24 x 32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre
maximum and rotary stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at
every 600 mm. c/c. and sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200
mm c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery
of the wall. The above grid is suspended at every 1200mm c/c. in both directions using
2.0 mm. thick pre-straightened GI wire laying FINE FISSURED BUTT Edge ceiling tiles
manufactured
by
M/s.
Armstrong
or
equivalent
World
Industries,
of
size
600mmx600mmx15mm having NRC 0.55, Light reflectance of >84% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having 3 coats of white paint with
Fine Fissured, back of the tile duly sanded and finished with a coat of protective paint
over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FINE FISSURED
TEGULAR EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall angle
of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The above
grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying FINE FISSURED TEGULAR Edge ceiling tiles manufactured
by M/s. Armstrong or equivalent World Industries, of size 600mmx600mmx15mm having
NRC 0.55, Light reflectance of >84% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 99% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having 3 coats of white paint with Fine Fissured, back of the tile duly sanded and
New India Assurance
Page 109
finished with a coat of protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FINE FISSURED
MICROLOOK EDGE WITH XL 15MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 15 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 15 x 32 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 15 x 32 mm, having 0.25 mm gauge at 1200 mm c/c. and wall angle
of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The above
grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying FINE FISSURED MICROLOOK Edge ceiling tiles
manufactured
by
M/s.
Armstrong
or
equivalent
World
Industries,
of
size
600mmx600mmx15mm having NRC 0.55, Light reflectance of >84% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having 3 coats of white paint with
Fine Fissured, back of the tile duly sanded and finished with a coat of protective paint
over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FINE FISSURED
MICROLOOK EDGE WITH SILHOUETTE GRID(BLACK REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying
FINE FISSURED MICROLOOK WITH SILHOUETTE GRID(BLACK REVEAL) ceiling tiles
manufactured
by
M/s.
Armstrong
or
equivalent
World
Industries,
of
size
600mmx600mmx15mm having NRC 0.55, Light reflectance of >84% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having 3 coats of white paint with
Fine Fissured, back of the tile duly sanded and finished with a coat of protective paint
New India Assurance
Page 110
over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FINE FISSURED
MICROLOOK EDGE WITH SILHOUETTE GRID(WHITE REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying
fine fissured microlook with silhouette grid(white reveal) ceiling tiles manufactured by
M/s. Armstrong or equivalent World Industries, of size
600mmx600mmx15mm having NRC 0.55, Light reflectance of >84% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having 3 coats of white paint with
Fine Fissured, back of the tile duly sanded and finished with a coat of protective paint
over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FINE FISSURED
TEGULAR EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
fine fissured tegular edge with xl 24mm select grid ceiling tiles manufactured by M/s.
Armstrong or equivalent World Industries, of size 600mmx600mmx15mm having NRC
0.55, Light reflectance of >84% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
New India Assurance
Page 111
Humidity Resistance of 99% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having 3 coats of white paint with Fine Fissured, back of the tile duly sanded and
finished with a coat of protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FINE FISSURED
MICROLOOK EDGE WITH XL 15MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 15 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 15 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
fine fissured microlook with xl 15mm select grid ceiling tiles manufactured by M/s.
Armstrong or equivalent World Industries, of size 600mmx600mmx15mm having NRC
0.55, Light reflectance of >84% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 99% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having 3 coats of white paint with Fine Fissured, back of the tile duly sanded and
finished with a coat of protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – DUNE
SUPREME BUTT
EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall angle
of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The above
grid is suspended at every
1200mm c/c. in both directions using 2.0 mm. thick pre-straightened GI wire laying laying
New India Assurance
Page 112
Dune Supreme Butt Edge ceiling tiles manufactured by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx15mm having NRC 0.50,
Light reflectance of >85% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 99% (having LIFETIME GUARANTEE against SAG),
having Fire Performance CLASS O / CLASS 1 (BS 476), surface having 3 coats of white
paint - crisp finely granulated with micro perforations, back of the tile duly sanded and
finished with a coat of protective paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – DUNE
SUPREME
TEGULAR EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall angle
of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The above
grid is suspended at every
1200mm c/c. in both directions using 2.0 mm. thick pre-straightened GI wire laying laying
Dune Supreme Tegular Edge ceiling tiles manufactured by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx16mm having NRC 0.50, Light reflectance of
>85% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 99% (having LIFETIME GUARANTEE against SAG), having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having 3 coats of white paint - crisp
finely granulated with microperforations, back of the tile duly sanded and finished with a
coat of protective paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – DUNE
SUPREME
MICROLOOK EDGE WITH XL 15MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent World Industries using hot dipped
New India Assurance
Page 113
galvanized steel section, exposed surface with pre-coated capping, main tee of size 15 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 15 x 32 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 15 x 32 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying DUNE SUPREME MICROLOOK EDGE ceiling tiles
manufactured by M/s.
Armstrong or equivalent World Industries, of size 600mmx600mmx15mm having NRC
0.50, Light reflectance of >85% (WT), thermal conductivity k = 0.052-0.057 W/m 0K,
Humidity Resistance of 99% (having LIFETIME GUARANTEE against SAG), having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having 3 coats of white paint - crisp
finely granulated with microperforations, back of the tile duly sanded and finished with a
coat of protective paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE
SUPREME MICROLOOK EDGE WITH SILHOUETTE GRID(BLACK REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire
laying
DUNE SUPREME MICROLOOK EDGE WITH SILHOUETTE GRID(BLACK REVEAL)
ceiling tiles manufactured by M/s. Armstrong or equivalent World Industries, of size
600mmx600mmx15mm having NRC 0.50, Light reflectance of >85% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99%
New India Assurance
Page 114
(having LIFETIME GUARANTEE against SAG), having Fire Performance CLASS O /
CLASS 1 (BS 476), surface having 3 coats of white paint - crisp finely granulated with
microperforations, back of the tile duly sanded and finished with a coat of protective
paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE
SUPREME MICROLOOK EDGE WITH SILHOUETTE GRID(WHITE REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire
laying
DUNE SUPREME MICROLOOK EDGE WITH SILHOUETTE GRID(WHITE REVEAL)
ceiling tiles manufactured by M/s. Armstrong or equivalent World Industries, of size
600mmx600mmx15mm having NRC 0.50, Light reflectance of >85% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99% (having LIFETIME
GUARANTEE against SAG), having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having 3 coats of white paint - crisp finely granulated with micro perforations,
back of the tile duly sanded and finished with a coat of protective paint over the formed
grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE
SUPREME MICROLOOK EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick pre-
New India Assurance
Page 115
straightened GI wire laying
DUNE SUPREME MICROLOOK EDGE WITH XL 24MM SELECT GRID
ceiling tiles manufactured by M/s. Armstrong or equivalent World Industries, of size
600mmx600mmx15mm having NRC 0.50, Light reflectance of >85% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99% (having LIFETIME
GUARANTEE against SAG), having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having 3 coats of white paint - crisp finely granulated with microperforations,
back of the tile duly sanded and finished with a coat of protective paint over the formed
grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE
SUPREME MICROLOOK EDGE WITH XL 15MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 15 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 15 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
DUNE SUPREME MICROLOOK EDGE WITH XL 15MM SELECT GRID
ceiling tiles manufactured by M/s. Armstrong or equivalent World Industries, of size
600mmx600mmx15mm having NRC 0.50, Light reflectance of >85% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 99% (having LIFETIME
GUARANTEE against SAG), having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having 3 coats of white paint - crisp finely granulated with microperforations,
back of the tile duly sanded and finished with a coat of protective paint over the formed
grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FISSURED ANF
RH 90 BUTT EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
New India Assurance
Page 116
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every
1200mm c/c. in both directions using 2.0 mm. thick pre-straightened GI wire laying
FISSURED ANF BUTT Edge ceiling tiles manufactured by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx14mm having NRC 0.5, Light reflectance of
>80% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 90% ,
having Fire Performance CLASS O / CLASS 1 (BS 476), surface having Random
Fissured with 3 coats of white paints and finished with a coat of protective paint over the
formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FISSURED ANF
RH 90 TEGULAR EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying FISSURED ANF TEGULAR Edge ceiling tiles
manufactured
by
M/s.
Armstrong
or
equivalent
World
Industries,
of
size
600mmx600mmx14mm having NRC 0.5, Light reflectance of >80% (WT), thermal
conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 90% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having Random Fissured with 3 coats of white paints and finished with a coat of
protective paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – FISSURED ANF
New India Assurance
Page 117
RH 90 TEGULAR EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
FISSURED ANF TEGULAR Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent
World Industries, of size 600mmx600mmx14mm having NRC 0.5, Light
reflectance of >80% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 90% , having Fire Performance CLASS O / CLASS 1 (BS 476), surface
having Random Fissured with 3 coats of white paints and finished with a coat of
protective paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – PRIMA ADRIA
BUTT EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every
1200mm c/c. in both directions using 2.0 mm. thick pre-straightened GI wire laying
PRIMA ADRIA BUTT Edge ceiling tiles manufactured by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx15mm having NRC 0.5, Light reflectance of
>85% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% ,
having Fire Performance CLASS O / CLASS 1 (BS 476), surface having 4 coats of white
paint and microperforations and finished with a coat of protective paint over the formed
New India Assurance
Page 118
grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – PRIMA ADRIA
TEGULAR EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying PRIMA ADRIA TEGULAR Edge ceiling tiles
manufactured
by
M/s.
Armstrong
or
equivalent
World
Industries,
of
size
600mmx600mmx15mm having NRC 0.5, Light reflectance of >85% (WT), thermal
conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having 4 coats of white paint and microperforations and finished with a coat of
protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – PRIMA ADRIA
MICROLOOK EDGE WITH XL 15MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 15 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 15 x 32 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 15 x 32 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying PRIMA ADRIA MICROLOOK Edge ceiling tiles
manufactured
by
M/s.
New India Assurance
Armstrong
or
equivalent
World
Industries,
of
size
Page 119
600mmx600mmx15mm having NRC 0.5, Light reflectance of >85% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having 4 coats of white paint and
microperforations and finished with a coat of protective paint over the formed grid
complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – PRIMA ADRIA
MICROLOOK EDGE WITH SILHOUETTE GRID(BLACK REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having
0.33 mm gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35
mm gauge fixed to the periphery of the wall. The above grid is suspended at every
600mm c/c. in both directions using 2.0 mm. thick pre-straightened GI wire laying
PRIMA ADRIA MICROLOOK Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent World Industries, of size 600mmx600mmx15mm having NRC 0.5,
Light reflectance of >85% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS
476), surface having 4 coats of white paint and microperforations and finished with a
coat of protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – PRIMA ADRIA
MICROLOOK EDGE WITH SILHOUETTE GRID(WHITE REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying
PRIMA ADRIA MICROLOOK Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent World Industries, of size 600mmx600mmx15mm having NRC 0.5, Light
New India Assurance
Page 120
reflectance of >85% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476), surface
having 4 coats of white paint and microperforations and finished with a coat of protective
paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – PRIMA ADRIA
TEGULAR EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
PRIMA ADRIA TEGULAR Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent
World Industries, of size 600mmx600mmx15mm having NRC 0.5, Light
reflectance of >85% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476), surface
having 4 coats of white paint and microperforations and finished with a coat of protective
paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – PRIMA ADRIA
MICROLOOK EDGE WITH XL 15MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 15 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 15 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
PRIMA ADRIA MICROLOOK Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent World Industries, of size 600mmx600mmx15mm having NRC 0.5, Light
New India Assurance
Page 121
reflectance of >85% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476), surface
having 4 coats of white paint and microperforations and finished with a coat of protective
paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE MAX
BUTT EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying DUNE MAX BUTT Edge ceiling tiles manufactured by
M/s. Armstrong or equivalent World Industries, of size 600mmx600mmx19mm having
NRC 0.70, Light reflectance of >83% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface is crisp and finely granulated surface with high light reflectance and scratch
resistance and back of the tile duly sanded and finished with a coat of protective paint
over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE MAX
TEGULAR EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
New India Assurance
Page 122
pre-straightened GI wire laying DUNE MAX TEGULAR Edge ceiling tiles manufactured
by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx19mm
having NRC 0.70, Light reflectance of >83% (WT), thermal conductivity k = 0.052-0.057
W/m0K, Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1
(BS476), surface is crisp and finely granulated surface with high light reflectance and
scratch resistance and back of the tile duly sanded and finished with a coat of protective
paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE MAX
MICROLOOK EDGE WITH XL 15MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 15 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 15 x 32 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 15 x 32 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying DUNE MAX MICROLOOK Edge ceiling tiles
manufactured
by
M/s.
Armstrong
or
equivalent
World
Industries,
of
size
600mmx600mmx19mm having NRC 0.70, Light reflectance of >83% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface is crisp and finely granulated
surface with high light reflectance and scratch resistance and back of the tile duly
sanded and finished with a coat of protective paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE MAX
MICROLOOK EDGE WITH SILHOUETTE GRID(BLACK REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
New India Assurance
Page 123
both directions using 2.0 mm. thick pre-straightened GI wire laying
DUNE MAX MICROLOOK Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent
World Industries, of size 600mmx600mmx19mm having NRC 0.70, Light
reflectance of >83% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476), surface is
crisp and finely granulated surface with high light reflectance and scratch resistance and
back of the tile duly sanded and finished with a coat of protective paint over the formed
grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE MAX
MICROLOOK EDGE WITH SILHOUETTE GRID(WHITE REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying
DUNE MAX MICROLOOK Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent
World Industries, of size 600mmx600mmx19mm having NRC 0.70, Light
reflectance of >83% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS
476), surface is crisp and finely granulated surface with high light reflectance and
New India Assurance
Page 124
scratch resistance and back of the tile duly sanded and finished with a coat of protective
paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE MAX
TEGULAR EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
DUNE MAX TEGULAR Edge ceiling tiles manufactured by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx19mm having NRC 0.70, Light reflectance of
>83% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% ,
having Fire Performance CLASS O / CLASS 1 (BS 476), surface is crisp and finely
granulated surface with high light reflectance and scratch resistance and back of the tile
duly sanded and finished with a coat of protective paint over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE MAX
MICROLOOK EDGE WITH XL 15MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 15 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 15 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
DUNE MAX MICROLOOK Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent World Industries, of size 600mmx600mmx19mm having NRC 0.70, Light
reflectance of >83% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476), surface is
New India Assurance
Page 125
crisp and finely granulated surface with high light reflectance and scratch resistance and
back of the tile duly sanded and finished with a coat of protective paint over the formed
grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – ULTIMA BUTT
EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying ULTIMA BUTT Edge ceiling tiles manufactured by M/s.
Armstrong or equivalent World Industries, of size 600mmx600mmx19mm having NRC
0.7, Light reflectance of >90% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having white unperforated smooth surface with high light reflectance and scratch
New India Assurance
Page 126
resistance and finished with a coat of protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – ULTIMA
TEGULAR EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying ULTIMA TEGULAR Edge ceiling tiles manufactured by
M/s. Armstrong or equivalent World Industries, of size 600mmx600mmx19mm having
NRC 0.7, Light reflectance of >90% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having white unperforated smooth surface with high light reflectance and scratch
resistance and finished with a coat of protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – ULTIMA
MICROLOOK EDGE WITH XL 15MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent World Industries using hot dipped
New India Assurance
Page 127
galvanized steel section, exposed surface with pre-coated capping, main tee of size 15 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 15 x 32 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 15 x 32 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying ULTIMA MICROLOOK Edge ceiling tiles manufactured
by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx19mm
having NRC 0.7, Light reflectance of >90% (WT), thermal conductivity k = 0.052-0.057
W/m0K, Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1
(BS 476), surface having white unperforated smooth surface with high light reflectance
and scratch resistance and finished with a coat of protective paint over the formed grid
complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – ULTIMA
MICROLOOK EDGE WITH SILHOUETTE GRID(BLACK REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying ULTIMA
MICROLOOK WITH SILHOUETTE GRID(BLACK REVEAL) ceiling tiles manufactured
by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx19mm
having NRC 0.7, Light reflectance of >90% (WT), thermal conductivity k = 0.052-0.057
W/m0K, Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1
(BS 476), surface having white unperforated smooth surface with high light reflectance
and scratch resistance and finished with a coat of protective paint over the formed grid
complete
New India Assurance
Page 128
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – ULTIMA
MICROLOOK EDGE WITH SILHOUETTE GRID(WHITE REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying ULTIMA
MICROLOOK WITH SILHOUETTE GRID(WHITE REVEAL) ceiling tiles manufactured
by M/s. Armstrong or equivalent
World Industries, of size 600mmx600mmx19mm
having NRC 0.7, Light reflectance of >90% (WT), thermal conductivity k = 0.052-0.057
W/m0K, Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1
(BS 476), surface having white unperforated smooth surface with high light reflectance
and scratch resistance and finished with a coat of protective paint over the formed grid
complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – ULTIMA
TEGULAR EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
ULTIMA TEGULAR EDGE WITH XL 24MM SELECT GRID
New India Assurance
Page 129
ceiling tiles manufactured by M/s. Armstrong or equivalent World Industries, of size
600mmx600mmx19mm having NRC 0.7, Light reflectance of >90% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface having white unperforated smooth
surface with high light reflectance and scratch resistance and finished with a coat of
protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – ULTIMA
MICROLOOK EDGE WITH XL 15MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 15 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 15 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
ULTIMA MICROLOOK WITH XL 15MM SELECT GRID ceiling tiles manufactured by
M/s. Armstrong or equivalent World Industries, of size 600mmx600mmx19mm having
NRC 0.7, Light reflectance of >90% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface having white unperforated smooth surface with high light reflectance and scratch
resistance and finished with a coat of protective paint over the formed grid complete
7
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – NEWTONE
BUTT EDGE WITH XL 24MM GRID
New India Assurance
Page 130
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm. at every 1200 mm. c/c. maximum and rotary stitched cross tee of size 24 x 27
mm at every 600 mm. c/c. and sub cross tee of size 24 x 25 mm at 1200 mm c/c. and
wall angle of size 19 x 19 mm. fixed to the periphery of the wall. The above grid is
suspended at every 1200mm c/c. in both directions using 2.0 mm. thick pre-straightened
GI wire laying NEWTONE BUTT EDGE (Hydrated Calcium Silicate Tile) ceiling tiles
manufactured by M/s. Armstrong or equivalent World Industries, having RH 100% and
size 600mmx600mmx6mm over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – NEWTONE
BUTT EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
NEWTONE BUTT EDGE (Hydrated Calcium Silicate Tile) ceiling tiles manufactured by
M/s. Armstrong or equivalent
World Industries, having RH 100% and size
600mmx600mmx6mm over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – NEWTONE
MICROLOOK EDGE WITH XL 15MM SELECT GRID
New India Assurance
Page 131
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 15 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 15 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
NEWTONE MICROLOOK EDGE (Hydrated Calcium Silicate Tile) ceiling tiles
manufactured by M/s. Armstrong or equivalent World Industries, having RH 100% and
size 600mmx600mmx6mm over the formed grid complete.
resistance and finished with a coat of protective paint over the formed grid complete
8
SPECIFICATIONS FOR METAL CEILING – CLIP-IN (PERFORATED TILES)
Providing and fixing of CLIP-IN METAL FALSE CEILING TILES with PERFORATIONS
with BLACK ACOUSTICAL FLEECE installed on a Double frame grid system comprising
of a MAIN CARRIER BAR at every 600mm interval suspended from a “ C CHANNEL” at
every 1000mm interval using a HANGER CLIP system and Fixing a 19mm x 19mm
WALL ANGLE around the wall and suspending the “C Channel” using 2mm/3mm
adjustable G.I Wire or G.I Rod fixed to Roof using 6mm Nylon Rawal Plug and Eye Hook
or L Cleat at every 1200mm intervals at the C Channel. The ceiling Tile Module shall be
of 600mm x 600mm size manufactured out of Pre-coated hot dipped Galvanized steel
with a primer and finish coat of Standard GLOBAL WHITE Polyester Tile with
STANDARD PERFORATION of 2.5mm dia. Holes with 16% OPEN AREA CEILING
PANEL or MICRO PERFORATION of 1.5mm dia. Holes with 22% open area CEILING
PANEL, clipped on from the bottom to the MAIN CARRIER BAR.
Spec. for METAL CEILING – CLIP-IN (PLAIN)
New India Assurance
Page 132
Providing and fixing of CLIP-IN METAL FALSE CEILING with UNPERFORATED PLAIN
surface Beveled edge tiles installed on a double frame grid system by comprising of a
MAIN CARRIER BAR at every 600mm interval suspended from a “ C CHANNEL” at
every 1000mm interval using a HANGER CLIP system and Fixing a 19mm x 19mm
WALL ANGLE around the wall and suspending the “C Channel” using 2mm/3mm
adjustable G.I Wire or G.I Rod fixed to Roof using 6mm Nylon Rawal Plug and Eye Hook
or L Cleat at every 1200mm intervals at the C Channel. The ceiling Tile Module shall be
of 600mm x 600mm size manufactured out of Pre-coated hot dipped Galvanised steel
with a primer and finish coat of Standard GLOBAL WHITE Polyester painted panel,
clipped on from the bottom to the MAIN CARRIER BAR.
SPECIFICATION FOR ACCOUSTICAL FLEECE
The Acoustical Fleece (Fabric Backing) to be used in case of perforated metal ceiling
system should be “Soundtex” acoustic nonwoven C 1986 SP as manufactured by
M/s. Freudenberg, Germany.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – DUNE
COLORTONE
TEGULAR EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 24 x 27 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 24 x 27 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every
1200mm c/c. in both directions using 2.0 mm. thick pre-straightened GI wire laying laying
Dune Colortone Tegular Edge ceiling tiles manufactured by M/s.
New India Assurance
Page 133
Armstrong or equivalent World Industries, of size 600mmx600mmx15mm having NRC
0.55, thermal conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having
Fire Performance CLASS O / CLASS 1 (BS 476),with ---------------colour
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – DUNE
COLORTONE TEGULAR EDGE WITH XL 24MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 24 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 24 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
Dune Colortone Tegular select Edge ceiling tiles manufactured by M/s. Armstrong or
equivalent World Industries, of size 600mmx600mmx15mm having NRC 0.55, thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having Fire
Performance CLASS O / CLASS 1 (BS 476),with ---------------colour
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – CONSTRAST
SQUARE /CIRCLES/ LINEAR MICROLOOK EDGE WITH XL 15MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 15 x
32 mm., having 0.27 mm gauge at every 1200 mm. centre to centre maximum and rotary
stitched cross tee of size 15 x 32 mm, having 0.27 mm gauge at every 600 mm. c/c. and
sub cross tee of size 15 x 32 mm, having 0.25 mm gauge at 1200 mm c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 1200mm c/c. in both directions using 2.0 mm. thick
pre-straightened GI wire laying constrast square /circles/ linear microlook with xl
15mm select grid ceiling tiles manufactured by M/s. Armstrong or equivalent World
Industries, of size 600mmx600mmx15mm having NRC 0.55, Light reflectance of >83%
(WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having
New India Assurance
Page 134
Fire Performance CLASS O / CLASS 1 (BS 476), surface is crisp finely granulated with
microperforations/ 3 coats of white paint with emboss surface and finished with a coat of
protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – CONSTRAST
SQUARE /CIRCLES/ LINEAR MICROLOOK EDGE WITH SILHOUETTE GRID(BLACK
REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying constrast square
/circles/ linear microlook with xl 15mm select grid ceiling tiles manufactured by M/s.
Armstrong or equivalent World Industries, of size
600mmx600mmx15mm having NRC 0.55, Light reflectance of >83% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface is crisp finely granulated with
microperforations/ 3 coats of white paint with emboss surface and finished with a coat of
protective paint over the formed grid complete
New India Assurance
Page 135
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – CONSTRAST
SQUARE /CIRCLES/ LINEAR MICROLOOK EDGE WITH SILHOUETTE GRID(WHITE
REVEAL)
Providing and fixing false ceiling system manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped galvanized steel section, rotary stitched main tee of
size 15mm x 42 mm web height, having 0.36 mm gauge at every 600 mm centre to
centre maximum and rotary stitched cross tee of size 15 mm x 42 mm, having 0.33 mm
gauge at every 600 mm. c/c. and wall angle of size 19 x 19 mm., having 0.35 mm gauge
fixed to the periphery of the wall. The above grid is suspended at every 600mm c/c. in
both directions using 2.0 mm. thick pre-straightened GI wire laying constrast square
/circles/ linear microlook with xl 15mm select grid ceiling tiles manufactured by M/s.
Armstrong or equivalent World Industries, of size 600mmx600mmx15mm having NRC
0.55, Light reflectance of >83% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 95% , having Fire Performance CLASS O / CLASS 1 (BS 476),
surface is crisp finely granulated with microperforations/ 3 coats of white paint with
emboss surface and finished with a coat of protective paint over the formed grid
complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – CONSTRAST
SQUARE /CIRCLES/ LINEAR MICROLOOK EDGE WITH XL 15MM SELECT GRID
Providing and fixing in true horizontal level 600 mm X 600 mm false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, rotary stitched main tee of size 15 mm x 30 mm web height,
having 0.27 mm gauge at every 600 mm centre to centre maximum and rotary stitched
cross tee of size 15 mm x 30 mm, having 0.27 mm gauge at every 600 mm. c/c. and wall
angle of size 19 x 19 mm., having 0.35 mm gauge fixed to the periphery of the wall. The
above grid is suspended at every 600mm c/c. in both directions using 2.0 mm. thick prestraightened GI wire laying
constrast square /circles/ linear microlook with xl 15mm select grid ceiling tiles
manufactured by M/s. Armstrong or equivalent World Industries, of size
600mmx600mmx15mm having NRC 0.55, Light reflectance of >83% (WT), thermal
conductivity k = 0.052-0.057 W/m0K, Humidity Resistance of 95% , having Fire
Performance CLASS O / CLASS 1 (BS 476), surface is crisp finely granulated with
New India Assurance
Page 136
microperforations/ 3 coats of white paint with emboss surface and finished with a coat of
protective paint over the formed grid complete
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – BIOGUARD
PERFORATED BUTT EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm. at every 1200 mm. c/c. maximum and rotary stitched cross tee of size 24 x 27
mm at every 600 mm. c/c. and sub cross tee of size 24 x 25 mm at 1200 mm c/c. and
wall angle of size 19 x 19 mm. fixed to the periphery of the wall. The above grid is
suspended at every 1200mm c/c. in both directions using
2.0 mm. thick pre-straightened GI wire laying BIOGUARD PERFORATED BUTT
EDGE ceiling tiles manufactured by M/s. Armstrong or equivalent
World Industries,
having NRC 0.60, Light reflectance of >83% (WT), k = 0.052-0.057 W/m 0K, having Fire
Performance CLASS O / CLASS 1 (BS 476), Humidity Resistance of 95%, surface
having 1 coat of white paint surface with High Light Reflectance &
Scratch Reflectance, back of the tile duly sanded and finished with a coat of paint of size
600mmx600mmx15mm over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT
CEILINGS – BIOGUARD
BUTT EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm. at every 1200 mm. c/c. maximum and rotary stitched cross tee of size 24 x 27
mm at every 600 mm. c/c. and sub cross tee of size 24 x 25 mm at 1200 mm c/c. and
wall angle of size 19 x 19 mm. fixed to the periphery of the wall. The above grid is
suspended at every 1200mm c/c. in both directions using
2.0 mm. thick pre-straightened GI wire laying BIOGUARD BUTT EDGE ceiling tiles
manufactured by M/s. Armstrong or equivalent
World Industries, having NRC 0.10,
having
Light reflectance of >90% (WT), k = 0.052-0.057 W/m0K, having Fire Performance
CLASS O / CLASS 1 (BS 476), Humidity Resistance of 95%, surface having 1 coat of
New India Assurance
Page 137
white paint surface with High Light Reflectance &
Scratch Reflectance, back of the tile duly sanded and finished with a coat of paint of size
600mmx600mmx15mm over the formed grid complete.
SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CEILINGS – NEEVA BUTT
EDGE WITH XL 24MM GRID
Providing and fixing in true horizontal level 600 mm. X 600 mm. false ceiling system
manufactured by M/s. Armstrong or equivalent
World Industries using hot dipped
galvanized steel section, exposed surface with pre-coated capping, main tee of size 24 x
32 mm. at every 1200 mm. c/c. maximum and rotary stitched cross tee of size 24 x 27
mm at every 600 mm. c/c. and sub cross tee of size 24 x 25 mm at 1200 mm c/c. and
wall angle of size 19 x 19 mm. fixed to the periphery of the wall. The above grid is
suspended at every 1200mm c/c. in both directions using
2.0 mm. thick pre-straightened GI wire laying NEEVA BUTT EDGE ceiling tiles
manufactured by M/s. Armstrong or equivalent
World Industries, having NRC 0.90,
having Light reflectance of >83% (WT), k = 0.036 W/m0K, having Fire Performance
CLASS O / CLASS 1 (BS 476), Humidity Resistance of 95%, surface having 1 coat of
white paint surface with High Light Reflectance & Scratch Reflectance, back of the tile
duly sanded and finished with a coat of paint of size
600mmx600mmx18mm over the formed grid complete.
SPECIFICATION FOR SOUNDSOAK ACOUSTICAL WALL PANELLING
Providing and fixing sound soak acoustical wall paneling of 21mm thick, 600mm wide
and 2200mm long or approved size high density mineral fibre boards having grooves on
the side and covered with treated fabric (with fire retardant & dirt repellant coating) fixed
with concealed extruded powder coated aluminum ‘H’ spline, ‘J’ moulding and other
accessories, supports, etc. of Armstrong or equivalent World Industries make including
necessary MDF frame work, glass wool backing of density 32Kg/Cum all complete as
per drawings.
New India Assurance
Page 138
GUIDE SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CORTEGA
MICROLOOK CEILING WITH ARMSTRONG OR EQUIVALENT SUPRAFINE
15MM GRID SYSTEM
Providing and fixing in true horizontal level Armstrong or equivalent CORTEGA RH99
microlook edge ceiling tiles of size 600mmx600mmx16mm having NRC 0.55, Light
reflectance of >80% (WT), thermal conductivity k = 0.052-0.057 W/m0K, Humidity
Resistance of 99% RH, and having Fire Performance CLASS 0/Class 1 (BS 476). The
tile shall be laid on Armstrong or equivalent grid systems with 15mm wide T - section
flanges colour white having rotary stitching on the Main Runner, 1200 mm & 600 mm
Cross Tees.
INSTALLATION: To comprise main runner spaced at 1200mm centres securely fixed to
the structural socket by approved hanger at 1200mm maximum centre. The last hanger
at the end of each main runner should not be greater than 450mm from the adjacent
wall.
Flush fitting 1200mm long cross tees to be interlocked between main runners at 600mm
centre to form 1200 x 600 mm module. Cut cross tees longer than 600mm require
independent support. 600 x 600mm module to be formed by fitting 600mm long flush
fitting cross tees centrally between the 1200 mm cross tees.
Perimeter trim to be Armstrong or equivalent wall angles or channel, secured to walls at
450 mm maximum centres.
New India Assurance
Page 139
GUIDE SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CORTEGA
MICROLOOK CEILING WITH ARMSTRONG OR EQUIVALENT
SILHOUETTE GRID
Providing and fixing in true horizontal level Armstrong or equivalent CORTEGA RH99
microlook edge ceiling tiles of size 600mmx600mmx16mm having NRC 0.55, Light
reflectance of >80% (WT), thermal conductivity k = 0.052-0.057 W/m0K,
Humidity Resistance of 99% RH, and having Fire Performance CLASS 0/Class 1 (BS
476). The tile shall be laid on Armstrong or equivalent Silhouette profile grid system with
15mm white flanges incorporating a 6mm central reveal in white/black colour.
Silhouette, Main Runners & Cross Tees to have mitred ends & “birdsmouth” notches to
provide mitred cruciform junctions.
INSTALLATION : To comprise main runner spaced at 1200mm centres securely fixed to
the structural soffit by approved hangers at 1200mm maximum centre & not more than
150mm from spliced joints. The last hanger at the end of each main runner should not
be greater than 600mm from the adjacent wall.
1200mm long cross tees to be interlocked between main runners at 600mm centre to
form 1200 x 600 mm module. Cut cross tees longer than 600mm require independent
support. 600 x 600mm modules to be formed by fitting 600mm long cross tees centrally
between the 1200 mm cross tees. The
1200mm cross tees to have central “birdsmouth” notches to facilitate fitting of
600mm cross tees.
Perimeter trim to be Armstrong or equivalent wall angles, secured to walls at 450 mm
maximum centres.
New India Assurance
Page 140
GUIDE SPECIFICATION FOR ARMSTRONG OR EQUIVALENT CORTEGA BOARD/TEGULAR
CEILING WITH ARMSTRONG OR EQUIVALENT XL 24 mm GRID SYSTEM
Providing & Fixing in true horizontal level Armstrong or equivalent
Acoustical Suspended Ceiling
System with CORTEGA RH99 (Board / Tegular ) Tiles. The tiles should have Humidity Resistance of
99% RH, Average NRC .55, Light Reflectance
>80%, Thermal Conductivity k = 0.052 – 0.057 w/m°c, Color White, Fire Performance Class 0/Class 1
(BS - 476) in module size of 600mm x 600mm x 16 mm laid on 24XL - Hot Dipped Galvanized steel
suspension System having rotary stitching on the Main Runner, 1200 mm & 600 mm Cross Tees.
INSTALLATION: To comprise main runner spaced at 1200mm centres securely fixed to the structural
socket by approved hanger at 1200mm maximum centre.
The last hanger at the end of each main runner should not be greater than 450mm from the adjacent
wall.
Flush fitting 1200mm long cross tees to be interlocked between main runners at
600mm centre to form 1200 x 600 mm module. Cut cross tees longer than
600mm require independent support. 600 x 600mm module to be formed by fitting 600mm long flush
fitting cross tees centrally between the 1200 mm cross tees.
Perimeter trim to be Armstrong or equivalent wall angles or channel, secured to walls at 450 mm
maximum centres.
SR.
NO
1
DESCRIPTION
Providing & fixing Metal ceiling of 600
X 600 of Tridon / Armstrong or
equivalent make to GI framework of
19 gauge for main supports & 24
gauge for secondary supports perfect
in level including making grooves etc.
cut out for light fixtures & providing
necessary GI frames to hang the
same independently. GI frames as per
manufacturers recommendation. Cost
to include all hardware etc. Complete.
(In open office area).
New India Assurance
UNIT QUANTITY SUPPLY INSTALLATION AMOUNT
Ft²
1600
Page 141
All
in
All
annual
maintenance cost including
consumables and spares for
5 years after expiry of
warranty period
Year
1
2
3
4
5
TOTAL of
AMC for
10yrs
HOWEVER THE OWNER HOLDS THE RIGHT
TO ADD / DELETE ANY ITEM FROM THE
CONTRACTORS SCOPE IF HE SO
DESIRES.
DATE:
SIGN:
COMPANY
SEAL :
DESIGNAT
ION:
New India Assurance
Page 142
REFERANCE DRAWINGS
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New India Assurance
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