INTERNATIONAL STANDARD IEC 62040-1-1
INTERNATIONAL
STANDARD
IEC
62040-1-1
First edition
2002-08
Uninterruptible power systems (UPS) –
Part 1-1:
General and safety requirements for UPS
used in operator access areas
Alimentations sans interruption (ASI) –
Partie 1-1:
Prescriptions générales et règles de sécurité
pour les ASI utilisées dans des locaux
accessibles aux opérateurs
Reference number
IEC 62040-1-1:2002(E)
Publication numbering
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60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
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INTERNATIONAL
STANDARD
IEC
62040-1-1
First edition
2002-08
Uninterruptible power systems (UPS) –
Part 1-1:
General and safety requirements for UPS
used in operator access areas
Alimentations sans interruption (ASI) –
Partie 1-1:
Prescriptions générales et règles de sécurité
pour les ASI utilisées dans des locaux
accessibles aux opérateurs
 IEC 2002  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: [email protected] Web: www.iec.ch
Com mission Electrotechnique Internationale
International Electrotechnical Com m ission
Международная Электротехническая Комиссия
PRICE CODE
S
For price, see current catalogue
–2–
62040-1-1 © IEC:2002(E)
CONTENTS
FOREWORD .......................................................................................................................... 5
1
2
3
4
Scope and specific applications....................................................................................... 7
1.1 Scope ..................................................................................................................... 7
1.2 Specific applications ............................................................................................... 7
Normative references ...................................................................................................... 8
Definitions ....................................................................................................................... 8
3.1 General .................................................................................................................. 8
3.2 UPS electrical ratings ............................................................................................. 9
3.3 Load types .............................................................................................................. 9
3.4 Connection to the supply .......................................................................................10
3.5 Circuits and circuit characteristics .........................................................................10
3.6 Insulation...............................................................................................................10
3.7 Equipment mobility ................................................................................................10
3.8 Insulation classes of UPS ......................................................................................10
3.9 Enclosures.............................................................................................................10
3.10 Accessibility...........................................................................................................10
3.11 Components ..........................................................................................................10
3.12 Power distribution ..................................................................................................11
3.13 Flammability ..........................................................................................................11
3.14 Miscellaneous ........................................................................................................11
3.15 Telecommunication networks .................................................................................11
General conditions for tests ............................................................................................11
4.1 Operating parameters for tests ..............................................................................11
4.2 Loads for tests .......................................................................................................12
4.3 Components ..........................................................................................................12
4.4 Power interfaces ....................................................................................................12
4.5 Marking and instructions ........................................................................................12
4.5.1 General......................................................................................................12
4.5.2 Power rating ..............................................................................................13
4.5.3 Safety instructions .....................................................................................13
4.5.4 Main voltage adjustment ............................................................................14
4.5.5 Power outlets .............................................................................................14
4.5.6 Fuses ........................................................................................................14
4.5.7 Wiring terminals .........................................................................................14
4.5.8 Battery terminals........................................................................................14
4.5.9 Controls and indicators ..............................................................................15
4.5.10 Isolation of multiple power sources ............................................................15
4.5.11 IT power systems.......................................................................................15
4.5.12 Protection in building installation................................................................15
4.5.13 High leakage current..................................................................................15
4.5.14 Thermostats and other regulating devices ..................................................15
4.5.15 Language...................................................................................................15
4.5.16 Durability of markings ................................................................................15
62040-1-1 © IEC:2002(E)
5
6
7
–3–
4.5.17 Removable parts ........................................................................................15
4.5.18 Replaceable batteries ................................................................................15
4.5.19 Operator access with a tool........................................................................16
4.5.20 Battery .......................................................................................................16
4.5.21 Installation instructions ..............................................................................17
Fundamental design requirements ..................................................................................17
5.1 Protection against electric shock and energy hazards ............................................17
5.1.1 Operator access ........................................................................................17
5.1.2 Access to ELV wiring .................................................................................17
5.1.3 Discharge of capacitors in the primary circuit .............................................17
5.1.4 Backfeed protection ...................................................................................18
5.1.5 Emergency switching device ......................................................................18
5.2 Insulation...............................................................................................................18
5.3 Limited current circuits...........................................................................................18
5.4 Provisions for protective earthing...........................................................................19
5.4.1 Protective earthing.....................................................................................19
5.4.2 Bonding .....................................................................................................19
5.5 AC and d.c. power isolation ...................................................................................19
5.5.1 Disconnect devices ....................................................................................19
5.5.2 Three-phase equipment .............................................................................19
5.5.3 Switch as a disconnect ..............................................................................20
5.5.4 Multiple power sources ..............................................................................20
5.5.5 Ungrounded conductors .............................................................................20
5.6 Overcurrent and earth fault protection....................................................................20
5.6.1 Basic requirements ....................................................................................20
5.6.2 Battery circuit protection ............................................................................21
5.6.3 Location of protective device......................................................................21
5.6.4 Rating of protective device.........................................................................21
5.7 Protection of personnel – Safety interlocks ............................................................21
5.7.1 Operator protection ....................................................................................21
5.7.2 Service person protection ..........................................................................22
5.8 Clearances, creepage distances and distances through insulation .........................23
5.9 External signalling circuits .....................................................................................23
5.10 Limited power source.............................................................................................23
Wiring, connections and supply ......................................................................................23
6.1 General .................................................................................................................23
6.2 Connection to power ..............................................................................................23
6.2.1 Means of connection ..................................................................................23
6.3 Wiring terminals for external power conductors......................................................24
Physical requirements ....................................................................................................24
7.1 Enclosure ..............................................................................................................24
7.2 Stability .................................................................................................................24
7.3 Mechanical strength...............................................................................................24
7.4 Construction details ...............................................................................................25
7.4.1 Openings ...................................................................................................25
7.4.2 Gas concentration......................................................................................25
7.4.3 Equipment movement ................................................................................25
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62040-1-1 © IEC:2002(E)
7.5
7.6
8
9
Resistance to fire...................................................................................................25
Battery location......................................................................................................25
7.6.1 Accessibility and maintainability.................................................................25
7.6.2 Vibration ....................................................................................................26
7.6.3 Distance ....................................................................................................26
7.6.4 Insulation ...................................................................................................26
7.6.5 Wiring ........................................................................................................26
7.6.6 Electrolyte spillage.....................................................................................26
7.6.7 Ventilation .................................................................................................26
7.6.8 Charging voltages ......................................................................................27
7.7 Temperature rise ...................................................................................................27
Electrical requirements and simulated abnormal conditions ............................................28
8.1 General .................................................................................................................28
8.1.1 Earth leakage current.................................................................................28
8.1.2 Pluggable equipment type B UPS ..............................................................28
8.2 Electric strength.....................................................................................................28
8.3 Abnormal operating and fault conditions ................................................................28
8.3.1 Simulation of faults ....................................................................................28
8.3.2 Conditions for tests ....................................................................................29
Connection to telecommunication networks ....................................................................29
Annexes ................................................................................................................................30
Annex H (informative) Guidance on protection against ingress of water and foreign
objects ..................................................................................................................................31
Annex L (normative) Backfeed protection test .....................................................................33
Annex M (normative) Examples of reference load conditions...............................................35
Annex N (normative) Ventilation of battery compartments ...................................................39
Annex X (informative) Guidance for disconnection of batteries during shipment ..................42
Figure L.1 – Potential load faults ...........................................................................................34
Figure X.1 – Precautionary label for products shipped with the battery disconnected ............42
Figure X.2 – Precautionary label for products shipped with the battery connected .................43
Table 1 – Location of battery protective device(s) .................................................................21
Table 2 – Temperature-rise limits ..........................................................................................27
Table 3 – Permitted temperature limits for magnetic windings at the end of stored
energy mode operation .........................................................................................................27
Table H.1 – Degrees of protection against foreign objects indicated by the first
characteristic numeral ...........................................................................................................31
Table H.2 – Degrees of protection against water indicated by the second
characteristic numeral ...........................................................................................................32
62040-1-1 © IEC:2002(E)
–5–
UNINTERRUPTIBLE POWER SYSTEMS (UPS) –
Part 1-1: General and safety requirements for UPS
used in operator access areas
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62040-1-1 has been prepared by subcommittee 22H: Uninterruptible power systems (UPS), of IEC technical committee 22: Power electronic systems and
equipment.
The text of this standard is based on the following documents:
FDIS
Report on voting
22H/22/FDIS
22H/24/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
Annexes L, M and N form an integral part of this standard.
Annexes H and X are for information only.
In this standard, the following print types are used:
–
Requirements proper and normative annexes: in roman type;
–
Compliance statements and test specifications: in italic type;
–
Notes and other informative matter: in smaller roman type;
–
Normative conditions within tables: in smaller roman type;
–
Terms that are defined in clause 3: bold.
–6–
62040-1-1 © IEC:2002(E)
The committee has decided that this publication remains valid until 2006. At this date, in
accordance with the committee’s decision, the publication will be
•
•
•
•
reconfirmed;
withdrawn;
replaced by a revised edition, or
amended.
62040-1-1 © IEC:2002(E)
–7–
UNINTERRUPTIBLE POWER SYSTEMS (UPS) –
Part 1-1: General and safety requirements for UPS
used in operator access areas
1
1.1
Scope and specific applications
Scope
This standard applies to electronic uninterruptible power systems (UPS) with an electrical
energy storage device in the d.c. link. It is to be used with IEC 60950-1 which is referred to in
this standard as "RD".
When any item is referred to by the phrase "The definitions or the provisions of item/RD
apply", this phrase is intended to mean that the definitions or provisions in that item of
IEC 60950-1 apply, except any which are clearly inapplicable to uninterruptible power
systems. National requirements additional to those in IEC 60950-1 apply and are found as
notes under relevant clauses of the RD.
The primary function of the UPS covered by this standard is to ensure continuity of an
alternating power source. The UPS may also serve to improve the quality of the power source
by keeping it within specified characteristics.
This standard is applicable to UPS which are movable, stationary, fixed or for building-in, for
use on low-voltage distribution systems and intended to be installed in any operator
accessible area. It specifies requirements to ensure safety for the operator and layman who
may come into contact with the equipment and, where specifically stated, for the service
person.
This standard is intended to ensure the safety of installed UPS, both as a single UPS unit or
as a system of interconnected UPS units, subject to installing, operating and maintaining the
UPS in the manner prescribed by the manufacturer.
This standard does not cover d.c. supplied electronic ballasts (IEC 60924 and IEC 60925),
UPS intended to be installed in separated electrical locations and UPS based on rotating
machines.
The relevant general and safety requirements for UPS installed in restricted access locations
are given in IEC 62040-1-2; electromagnetic compatibility (EMC) requirements and definitions
are given in IEC 62040-2.
1.2
Specific applications
Even if this standard does not cover all types of UPS, it may be taken as a guide for such
equipment. Requirements additional to those specified in this standard may be necessary for
specific applications, for example:
–
UPS intended for operation while exposed, for example, to extremes of temperature; to
excessive dust, moisture, or vibration; to flammable gases; to corrosive or explosive
atmospheres;
–
electromedical applications with the UPS located within 1,5 m from the patient contact
area;
–
for UPS subject to transient overvoltages exceeding those for Overvoltage Category II
according to IEC 60664, additional protection might be necessary in the mains supply to
the UPS;
–8–
62040-1-1 © IEC:2002(E)
–
UPS intended for use where ingress of water and foreign objects are possible, additional
requirements may be necessary; for guidance on such requirements and for relevant
testing, see annex H;
–
UPS with trapezoidal output waveforms and long run times (greater than 30 min) in
addition to complying with 5.3.12 of IEC 62040-3 are subject to voltage distortion tests for
the purpose of load compatibility.
NOTE For UPS intended to be used in vehicles, on board ships or aircraft, in tropical countries, or on elevations
greater than 1 000 m, different requirements may be necessary.
2
Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60417 (all parts), Graphical symbols for use on equipment
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC/TR 60755:1983, General requirements for residual current operated protective devices
Amendment 1 (1988)
Amendment 2 (1992)
IEC 60950-1:2001, Information technology equipment – Safety – Part 1: General requirements
IEC 61000-2-2:2002, Electromagnetic compatibility (EMC) – Part 2-2: Environment –
Compatibility levels for low-frequency conducted disturbances and signalling in public
low-voltage power supply systems
IEC 61008-1:1996, Residual current operated circuit-breakers without integral overcurrent
protection for household and similar uses (RCCBs) – Part 1: General rules
IEC 61009-1:1996, Residual current operated circuit-breakers with integral overcurrent
protection for household and similar uses (RCBOs) – Part 1: General rules
IEC 2040-1-2, Uninterruptible power systems (UPS) – Part 1-2: General and safety requirements for UPS used in restricted access locations 1)
IEC 62040-2:1999, Uninterruptible power systems (UPS) – Part 2: Electromagnetic compatibility
(EMC) requirements
IEC 62040-3:1999, Uninterruptible power systems (UPS) – Part 3: Method of specifying the
performance and test requirements
3
3.1
Definitions
General
For the purposes of this standard, the following definitions apply. Where the terms "voltage"
and "current" are used, they imply the r.m.s. values, unless otherwise specified.
NOTE Care should be taken that measurement instruments given a true r.m.s. reading in the presence of nonsinusoidal signals.
___________
1) To be published.
62040-1-1 © IEC:2002(E)
–9–
3.1.1
uninterruptible power system (UPS)
combination of convertors, switches and energy storage devices (for example, batteries),
constituting a power system for maintaining continuity of load power in case of input power
failure
3.1.2
bypass
power path alternative, either internal or external to the UPS
3.1.3
primary power
power supplied by an electrical utility company or by a user’s generator
3.1.4
backfeed
condition in which a voltage or energy available within the UPS is fed back to any of the input
terminals, either directly or by a leakage path while operating in the stored energy mode and
with primary power not available
3.1.5
backfeed protection
control scheme that reduces the risk of electric shock due to backfeed
3.1.6
stored energy mode
operation of the UPS when supplied by the following conditions:
– primary power is disconnected or is out of a given tolerance;
– battery is being discharged;
– load is within the given range;
– output voltage is within the given tolerance
3.2
UPS electrical ratings
3.2.1
rated voltage
input or output voltage (for three-phase supply, the phase-to-phase voltage) as declared by
the manufacturer
3.2.2
rated voltage range
input or output voltage range as declared by the manufacturer, expressed by its lower and
upper rated voltages
3.2.3
rated current
maximum input or output current of the UPS as declared by the manufacturer
3.3
Load types
3.3.1
normal load
mode of operation which approximates as closely as possible the most severe conditions of
normal use in accordance with the manufacturer’s operating instructions. However, when the
conditions of actual use can obviously be more severe than the maximum load conditions
recommended by the manufacturer, a load shall be used that is representative of the
maximum that can be applied
NOTE
For examples of reference normal load conditions for UPS, see annex M.
– 10 –
62040-1-1 © IEC:2002(E)
3.3.2
linear load
load where the current drawn from the supply is defined by the relationship:
I = U/Z
where
I
is the load current;
U is the supply voltage;
Z
is the load impedance
3.3.3
non-linear load
load where the parameter Z (load impedance) is no longer a constant but is a variable
dependent on other parameters, such as voltage or time (see annex M)
3.4
Connection to the supply
The definitions of 1.2.5/RD apply together with the following.
3.4.1
power cord
flexible cord or cable for interconnection purposes
3.5
Circuits and circuit characteristics
The definitions of 1.2.8/RD apply.
3.5.1
hazardous voltage
The definitions in 1.2.8.5/RD apply.
3.6
Insulation
The definitions of 1.2.9/RD apply.
3.7
Equipment mobility
The definitions of 1.2.3/RD apply.
3.8
Insulation classes of UPS
The definitions of 1.2.4/RD apply.
3.9
Enclosures
The definitions of 1.2.6/RD apply.
3.10 Accessibility
The definitions of 1.2.7/RD apply.
3.11 Components
The definitions of 1.2.11/RD apply.
62040-1-1 © IEC:2002(E)
– 11 –
3.12 Power distribution
The definitions of 1.2.8/RD apply.
3.13 Flammability
The definitions of 1.2.12/RD apply.
3.14 Miscellaneous
The definitions of 1.2.13/RD apply together with the following.
3.14.1
type test
The definition of 1.4.2/RD applies together with the following addition.
Where in this standard compliance of materials, components or subassemblies is checked by
inspection or by testing of properties, it is permitted to confirm compliance by reviewing any
relevant data or previous test results that are available instead of carrying out the specified
type tests.
NOTE For physically large units and/or power ratings, adequate test facilities to demonstrate some of the type
tests may not exist.
This situation also applies to some electrical tests for which no commercial test simulation
equipment is available or requires specialized test facilities beyond the scope of the
manufacturer's premises.
3.15 Telecommunication networks
The following definitions apply:
1.2.8.9/RD, 1.2.8.10/RD, 1.2.8.11/RD, 1.2.8.12/RD, 1.2.13.8/RD
4
General conditions for tests
The provisions of 1.4.1/RD, 1.4.2/RD, 1.4.3/RD, 1.4.6/RD, 1.4.7/RD, 1.4.8/RD, 1.4.10/RD,
1.4.11/RD, 1.4.12/RD, 1.4.13/RD, 1.4.14/RD apply together with the following.
Only the leakage current and heating tests shall be performed at input voltage tolerances. All
other tests shall be run at nominal input voltages.
4.1
Operating parameters for tests
Except where specific test conditions are stated elsewhere in the standard, and where it
is clear that there is a significant impact on the results of the test, the tests shall be carried
out under the most unfavourable combination of the following parameters, within the
manufacturer's operating specifications:
–
supply voltage;
–
absence of supply voltage;
–
supply frequency;
–
charge condition of the battery;
–
physical location of UPS and position of movable parts;
–
operating mode;
– 12 –
–
62040-1-1 © IEC:2002(E)
adjustments of thermostats, regulating devices or similar controls in operator access
areas, which are
–
a) adjustable without the use of a tool, or
–
b) adjustable using a means, such as a key or a tool, deliberately provided for the
operator.
4.2
Loads for tests
In determination of input current, and where other test results could be affected, the following
variables shall be considered and adjusted to give the most unfavourable results:
–
loads due to recharging of batteries;
–
loads due to optional features, offered or provided for by the manufacturer for inclusion in
or with the equipment under test;
–
loads due to other units of equipment intended by the manufacturer to draw power from
the equipment under test;
–
loads that could be connected to any standard supply outlets in operator access areas
on the equipment, up to the value indicated in the marking required by 4.5.2.
Artificial loads may be used to simulate such loads during testing.
4.3
Components
The provisions of 1.5.1/RD, 1.5.2/RD, 1.5.4/RD, 1.5.5/RD, 1.5.6/RD, 1.5.7/RD, 1.5.8/RD apply.
4.4
Power interfaces
The provisions of 1.6.1/RD, 1.6.2/RD, 1.6.4/RD apply together with the following.
The neutral conductors, if any, shall be insulated from earth and the body throughout the
equipment, as if they were a phase conductor. Components connected between neutral and
earth shall be rated for a working voltage equal to the phase-to-neutral voltage. In the case
of the output neutral conductor being isolated from the input neutral conductor, the service
person responsible for the installation shall connect this output neutral conductor as required
by local wiring rules and as detailed in the installation instructions.
Compliance is checked by inspection.
4.5
4.5.1
Marking and instructions
General
Where a marking is required as detailed below, provision shall be allowed for equivalent
wording. For equipment intended to be installed by anyone other than a service person, the
marking shall be readily visible either in an operator access area or shall be located on an
outside surface of the equipment. If located on an outside surface of fixed equipment, the
marking shall be visible after the equipment has been installed as in normal use.
Markings that are not visible from the outside of the equipment are considered to be in
compliance if they are directly visible when opening a door or cover. If the area behind a door
or cover is not an operator access area, a readily visible marker shall be attached to the
equipment to clearly indicate the location of the marking; it is allowed to use a temporary
marker.
62040-1-1 © IEC:2002(E)
4.5.2
– 13 –
Power rating
Equipment shall be provided with adequate markings in order to specify
–
input supply requirements,
–
output supply ratings.
For equipment with multiple rated voltages, the corresponding rated currents shall be
marked such that the different current ratings are separated by a solidus (/) and the relation
between rated voltage and associated rated current appears distinctly.
Equipment with a rated voltage range shall be marked with either the maximum rated
current or with the current range.
The markings of input and output shall include those in the RD, in addition to the following:
–
output rated voltage;
–
output rated current or rated power in volt-amperes or active power in watts;
–
output rated power factor, if less than unity, or active power and apparent power or active
power and rated current;
–
number of output phases (1φ – 3φ) with or without neutral;
–
output rated active power, in watts or kilowatts according to annex M;
–
output rated apparent power in volt-amperes or kilovoltamperes according to annex M;
–
maximum ambient operating temperature range (optional).
NOTE
Compliance according to annex M.
For units designed with additional separate automatic bypass/maintenance bypass, additional
input a.c. supply, or external batteries, it shall be allowed for relevant supply ratings to be
specified in the accompanying installation instructions. Where this is done, the following
instruction shall appear on or near the point of connection.
SEE INSTALLATION INSTRUCTIONS BEFORE
CONNECTING TO THE SUPPLY
If a unit is not provided with a means for direct connection to the supply mains, it need not be
marked with its rated current.
4.5.3
Safety instructions
It is necessary to take special precautions to avoid the introduction of hazards when
operating, installing, maintaining, transporting or storing UPS; the manufacturer shall make
available the necessary instructions.
NOTE 1 Special precautions may be necessary, for example, for battery connection of the equipment to the
supply and the interconnection of separate units, if any. The protective connection of the UPS, of the battery
cabinet and terminals or outlets for equipment supplied by UPS shall remain interconnected even when the mains
plug of the UPS is disconnected.
NOTE 2
Where appropriate, installation instructions should include reference to national wiring rules.
NOTE 3
Maintenance information is normally made available only to service persons.
The operating instructions and, for pluggable equipment intended for user installation, the
installation instructions shall be made available to the user.
– 14 –
62040-1-1 © IEC:2002(E)
The manufacturer shall provide the user with guidance on the level of competence necessary
for installation, for example:
–
operator installable: any pluggable type A or pluggable type B equipment with battery
already installed by the supplier;
–
service person installable: any fixed equipment or equipment with batteries not installed
when delivered to the user.
The manufacturer shall provide the user with guidance on the level of competence necessary
to operate the equipment as
–
operated by laymen;
–
operated by experienced personnel.
When the disconnect device for isolation of mains power is not incorporated in the equipment
(see 3.4.2/RD) or when the plug on the power supply cord is intended to serve as the
disconnect device, the installation instructions shall state that
–
for permanently connected equipment, an appropriate and readily accessible disconnect
device shall be incorporated in the fixed wiring;
–
for pluggable UPS, the mains socket outlet that supplies the UPS shall be installed near
the UPS and shall be easily accessible. When the UPS power cord must be connected to
an earthed mains socket outlet for safety reasons, the UPS marking or installation
instructions shall so state; the same requirement for marking applies to any special
equipotential earth bonding to other connected UPS equipment or Class I loads.
NOTE 4
Pluggable power cords are normally 2 m in length or less.
For permanently connected UPS without internal automatic backfeed isolation (see 5.1.4),
the instructions shall require the fitting by the user of a warning label on all primary power
isolators installed remote from the UPS area, to warn electrical maintenance personnel that
the circuit feeds a UPS.
The warning label shall carry the following wording or equivalent.
ISOLATE UNINTERRUPTIBLE POWER SUPPLY (UPS)
BEFORE WORKING ON THIS CIRCUIT
4.5.4
Main voltage adjustment
See 1.7.4/RD.
4.5.5
Power outlets
See 1.7.5/RD.
4.5.6
Fuses
See 1.7.6/RD.
4.5.7
Wiring terminals
See 1.7.7/RD.
4.5.8
Battery terminals
Terminals intended for connection to batteries shall indicate the polarity according to
IEC 60417 or be so constructed as to reduce the likelihood of improper connection.
62040-1-1 © IEC:2002(E)
4.5.9
– 15 –
Controls and indicators
See 1.7.8/RD.
4.5.10 Isolation of multiple power sources
See 1.7.9/RD.
4.5.11 IT power systems
See 1.7.10/RD.
4.5.12 Protection in building installation
If pluggable equipment type B or permanently connected equipment relies on the building
installation for the protection of internal wiring of the equipment, the equipment installation
instructions shall so state and shall also specify the necessary requirements for short-circuit
protection or overcurrent protection or, where necessary, for both (see 5.6.1).
If the protection against electric shock of the UPS (5.1) relies on residual current devices in
the building installation circuit and the design of the UPS is such that in any normal or
abnormal operating condition a fault current to earth with d.c. component is possible, the
installation instructions shall define the building residual current devices as type B
(IEC/TR 60755/A2) for three-phase UPS and as type A (IEC 61008-1 or IEC 61009-1) for
single-phase UPS.
NOTE Consideration shall be given to national wiring rules, if any, regarding requirements for public networks
protection.
4.5.13 High leakage current
See 5.1/RD. In addition, the following provisions apply.
For UPS systems intended for use as pluggable equipment type B or fixed installations,
where the earth leakage currents of the UPS and connected loads sum in the primary UPS
protective earth conductor exceeds or is likely to exceed the limits of 5.1/RD under any mode
of operation, the unit shall carry a warning label as required by 5.1/RD, and the installation
manual shall define the connection method to the primary power source.
4.5.14 Thermostats and other regulating devices
See 1.7.11/RD.
4.5.15 Language
See 1.7.12/RD.
4.5.16 Durability of markings
See 1.7.13/RD.
4.5.17 Removable parts
See 1.7.14/RD.
4.5.18 Replaceable batteries
See 1.7.15/RD.
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62040-1-1 © IEC:2002(E)
4.5.19 Operator access with a tool
See 1.7.16/RD.
4.5.20 Battery
External battery cabinets or battery compartments within the UPS shall be provided with the
following, clearly legible information in such a position as to be immediately seen by a
service person when servicing the UPS, in accordance with the requirements of 1.7.1/RD:
a) battery type (lead-acid, NiCd, etc.) and number of blocks or cells;
b) nominal voltage of total battery;
c) nominal capacity of total battery (optional);
d) warning label denoting an energy or electrical shock and chemical hazard and reference to
the maintenance handling and disposal requirements detailed in the following instructions.
Exception: Pluggable equipment type A UPS, supplied with integral batteries or with
separate battery cabinets, intended for location either under or over or alongside the UPS,
connected by plugs and sockets for operator installation, need only be fitted with the warning
label (see item d above) on the outside of the unit.
All other information shall be given in the users' instructions.
Instructions
a) Internally mounted battery:
–
instructions shall carry sufficient information to enable the replacement of the battery
with a suitable recommended type;
–
safety instructions to allow access by a service person shall be stated in the
installation/service handbook;
–
if batteries are to be installed by a service person, instructions for interconnections
including terminal torques shall be provided.
The operator manual shall include the following instructions:
–
Servicing of batteries should be performed or supervised
knowledgeable about batteries and required precautions.
by
personnel
–
When replacing batteries, replace with the same type and number of batteries or
battery packs.
CAUTION: Do not dispose of batteries in a fire. The batteries may explode.
CAUTION: Do not open or mutilate batteries. Released electrolyte is harmful to the
skin and eyes. It may be toxic.
b) Externally mounted batteries:
–
installation instructions shall state voltage, ampere-hour rating, charging regime and
method of protection required on installation to coordinate with UPS protective
devices, where the battery is not provided by the UPS manufacturer;
–
instructions for the battery cells shall be provided by the battery manufacturer.
c) External battery cabinets:
External battery cabinet supplied with the UPS shall have adequate installation
instructions to define cable sizes for connection to the UPS if the cabling is not supplied
by the UPS manufacturer. Where the battery cells or blocks are not supplied pre-installed
and wired, installation instructions for the battery cells or blocks shall be provided by the
battery manufacturer, if not detailed in the UPS manufacturer's installation instructions.
62040-1-1 © IEC:2002(E)
– 17 –
4.5.21 Installation instructions
Adequate information shall be provided in the installation instructions as to the purpose and
connection of any signalling circuits, relay contacts, Emergency Power Off (EPO) circuits, etc.
Attention should be drawn as to the necessity of maintaining characteristics of any TNV,
SELV or ELV circuits when connected to other equipment.
Installation instructions shall carry sufficient information, including the basic internal circuit
configuration of the UPS, to emphasize its compatibility to power distribution systems.
Special attention shall be given to the compatibility with the relevant wiring rules and to
bypass circuits.
5
Fundamental design requirements
5.1
Protection against electric shock and energy hazards
The provisions of 2.1.1.2/RD, 2.1.1.4/RD, 2.1.1.5/RD, 2.1.1.6/RD, 2.1.1.7/RD apply together
with the following.
5.1.1
Operator access
The standard specifies two categories of requirements for protection against electric shock
from energized parts. Additional requirements for protection against energy hazards are
specified in 2.1.1.5/RD.
NOTE 1
For SELV circuit definition, see 1.2.8.7/RD.
The two categories of requirements are based on the following principles.
a) The operator is permitted to have access to
–
bare parts in SELV circuits;
–
bare parts in limited current circuits;
–
insulation of wiring in ELV circuits under the conditions specified in 2.1.1.3/RD.
NOTE 2 Attention should be given to access to bare conductive parts at a voltage level of 25 V to 50 V a.c. and
60 V to 120 V d.c.
b) The operator shall be prevented from having access to
–
bare parts of circuits at ELV or hazardous voltages,
–
operational or basic insulation of such parts except under the conditions specified
in 5.1.2;
–
unearthed conductive parts separated from parts at ELV or at hazardous voltages by
operational or basic insulation only.
5.1.2
Access to ELV wiring
Subclause 2.1.1.3/RD applies together with the following.
NOTE Consideration should be given to the maximum unsynchronized voltages or an unsynchronized condition at
the inverter.
Compliance is checked by inspection and, if necessary, by test.
5.1.3
Discharge of capacitors in the primary circuit
Subclause 2.1.1.7/RD applies together with the following.
NOTE Attention is drawn to the fact that when loads are connected to the UPS, for certain configurations, the risk
of electric shock is not only due to the internal capacitors of the UPS but also to the capacitors of the load
connected to the UPS. This should be taken into account when designing the installation.
– 18 –
5.1.4
62040-1-1 © IEC:2002(E)
Backfeed protection
Backfeed protection shall be provided. Electric shock hazard (hazardous voltage, hazardous
energy, hazardous touch current) shall not appear on the input of the backfeed protecting
device under normal condition and condition of a single fault on a component (such as in the
control circuit) upon loss of the a.c. input voltage.
For fixed installation UPS, backfeed protection may be provided internally or externally to the
UPS in the a.c. input line.
When backfeed protection isolator is external to the UPS, the supplier shall specify the type of
the suitable isolating device which shall be used.
A label shall be provided close to the input terminals (see 4.5.3).
Compliance is checked by test and inspection of the equipment and relevant circuit diagram
and by simulating fault conditions according to 5.3/RD
If the backfeed protection employs an air gap, the air gap shall be defined by the following
or equivalent.
a) Under normal operation the space between poles of phases must meet the requirements
for basic insulation (see tables 2K and 2L/RD).
b) If the unit is operating on inverter, the source is considered to be a secondary supply
which is transient free (see table 2K/RD, last column). For example, circuits less than
150 V r.m.s. require 0,7 mm for basic insulation and circuits greater than 150 V r.m.s.
but less than 300 V r.m.s. require 1,4 mm for basic insulation. For a UPS with floating
outputs opening all phases and the neutral using the required clearance for basic
insulation, compliance is considered acceptable. If the output is grounded to the chassis,
then reinforced insulation or equivalent is required.
c) Clearances for components may be further reduced provided they meet both the manufacturing quality control programme that has at least the same level of quality assurance
as the example given in clause R.2/RD and withstand voltage of table G.2/RD. For
example, 0,4 mm is an acceptable air gap for voltages not exceeding 300 V r.m.s.
Compliance is checked by inspection.
5.1.5
Emergency switching device
A UPS shall be provided with an integral single emergency switching device (or terminals for
the connection of the remote emergency switching device), which prevents further supply to the
load by the UPS in any mode of operation. If reliance is placed on additional disconnection of
supplies in the building wiring installation, the installation instructions shall so state.
The requirement is not mandatory for pluggable UPS if permitted by national wiring rules and
relevant circuit diagrams.
Compliance is checked by inspection.
5.2
Insulation
The provisions of 2.2.3.1/RD, 2.2.3.2/RD and 2.2.3.3/RD apply.
5.3
Limited current circuits
The provisions of 2.4.1/RD, 2.4.2/RD, 2.4.3/RD apply.
62040-1-1 © IEC:2002(E)
5.4
– 19 –
Provisions for protective earthing
The provisions of 2.6/RD apply together with the following.
5.4.1
Protective earthing
Accessible conductive parts of Class I equipment, which might assume a hazardous voltage
in the event of a single insulation fault, shall be reliably connected to a protective earthing
terminal within the equipment.
This requirement does not apply to accessible conductive parts that are separated from parts
at hazardous voltage by
–
earthed metal parts, or
–
solid insulation or an air gap, or a combination of the two, meeting the requirements for
double insulation or reinforced insulation. In this case the parts involved shall be so
fixed and so rigid that the minimum distances are maintained during the application of
force as required by the relevant tests of 2.10/RD and 4.2.3/RD.
Compliance is checked by inspection and by the applicable requirements of 2.6.1/RD
and 5.3/RD.
5.4.2
Bonding
For Class I pluggable equipment type A, the UPS shall provide sufficient terminals, earthed
socket-outlets or other means to permit, in the final installed system configuration,
equipotential earth bonding to the UPS from other Class I equipments, including external
UPS battery cabinets, irrespective of whether the UPS primary protective conductor is
disconnected from its source. Any special bonding instructions shall be stated in the user’s
instructions.
Compliance is checked by inspection and earth resistance tests between respective
connection points.
5.5
AC and d.c. power isolation
The provisions of 2.6.2/RD, 2.6.3/RD, 2.6.4/RD, 2.6.5/RD apply together with the following.
5.5.1
Disconnect devices
Disconnection devices shall be provided to disconnect the UPS from the a.c. supplies for
servicing by qualified personnel.
NOTE Unless required for functional use, the means of isolation can be located either in the service access area
or external to the equipment.
5.5.2
Three-phase equipment
For three-phase UPS, the disconnect device(s) shall disconnect simultaneously all phase
conductors of the supply. The UPS requiring a neutral connection to an IT power system, the
disconnect device shall be a four-pole device and shall disconnect all phase conductors and
the neutral conductor. If this four-pole device is not provided in the UPS, the installation
instructions shall specify the need for its provision as part of the building installation.
If a disconnect device interrupts the neutral conductor, it shall simultaneously interrupt all
phase conductors (see 1.7.2/RD).
– 20 –
5.5.3
62040-1-1 © IEC:2002(E)
Switch as a disconnect
Where the disconnect device is a switch incorporated in the equipment, its "ON" and "OFF"
positions shall be marked in accordance with 1.7.8/RD.
If the operating means of the disconnection device is operated vertically rather than rotationally or horizontally, the "UP" position of the operating means shall be the "ON" position.
5.5.4
Multiple power sources
Where a permanently connected unit receives power from more than one external source (for
example, from different voltages/frequencies as redundant power), there shall be a prominent
marking at each disconnect device giving adequate instructions for the removal of all power
from the unit.
NOTE Attention shall also be paid to the PE conductor(s) so that the PE-connection remains even if one of the
supply cables is removed.
5.5.5
Ungrounded conductors
For both internal and external d.c. battery supplies, disconnect devices or means of isolation
shall open all ungrounded conductors of the battery or batteries.
Compliance with 5.5 is checked by inspection.
5.6
Overcurrent and earth fault protection
The provisions of 2.7.3/RD, 2.7.4/RD, 2.7.5/RD, 2.7.6/RD apply together with the following.
5.6.1
Basic requirements
Protection against excess currents, short circuits and earth faults in input and output circuits
shall be provided, either as an integral part of the equipment or as part of the building
installation.
a) Except as detailed in item b), protective devices necessary to comply with the
requirements of 8.3 shall be included as integral parts of the equipment.
b) For components in series with the mains input to the equipment, such as the supply cord,
appliance coupler, RFI filter, bypass and switches, short-circuit and earth-fault protection
shall be provided by protective devices in the building installation.
c) If reliance is placed on protection in the building installation, the installation instructions
shall comply with 4.5.12 except that for pluggable equipment type A, the building's
installation shall be regarded as providing protection in accordance with the rating of the
socket and 4.5.12 does not apply.
d) The manufacturer shall specify the r.m.s. value of the available fault current under the
most unfavourable conditions to allow the correct dimensioning of the neutral, protection
and phase conductors for permanently connected output circuits. The fault current need
not be provided if the manufacturer provides output circuit protection or for pluggable
equipment type A outputs.
When the inverter output current is controlled solely by a current limiting circuit, the available
short-circuit current or overload current shall not produce a hazard within the meaning of this
standard.
62040-1-1 © IEC:2002(E)
– 21 –
The protection from short circuits shall operate within 5 s.
NOTE The purpose of the above requirement is to reduce the risk of electric shock or fire hazard during the
period of an output short circuit. Providing a breaker at the output, rated the same as the output circuit, or current
limiting, at the same rating, is considered sufficient to meet this requirement.
Compliance is checked by inspection and functional test.
5.6.2
Battery circuit protection
A battery supply circuit shall be provided with overcurrent protection complying with the
requirements described in 5.6.3, 5.6.4 and table 1.
5.6.3
Location of protective device
Where the batteries are installed inside the UPS, the battery supply circuit shall be provided
with a protective device located adjacent to the battery connecting means before any
component which may fail short-circuited, such as capacitors, semi-conductors, or similar
components.
Where the batteries are installed outside the UPS, the location of the overcurrent protective
device shall be as indicated in table 1.
Table 1 – Location of battery protective device(s)
Location and/or type of
battery supply
Location
Number of
devices
Overcurrent
Number of
devices
Earth faults
1) Within UPS
UPS
1
1 or 2 a
2) Movable or stationary
separate cabinet
Battery cabinet
1
1 or 2 a
3) Fixed separate cabinet
Battery cabinet
1
1 or 2 a
4) Separate battery room b
Battery room
1
1 or 2 a
a
Earth faults on ungrounded batteries require a device in each pole unless external circuit
fusing serves the same purpose.
b
The instruction manual for a UPS shall state the rating of the overcurrent device(s) to
coordinate with the UPS and associated cabling. This shall apply also for items 2 and 3 if
such cabinets are not supplied with the UPS as a complete system.
For a UPS to be used with a separate battery supply, the rating of the overcurrent protective
device shall be indicated in the instruction manual and shall take into account the current
rating of the conductors to be connected between the UPS and battery supply, as determined
from the requirement given in 6.2.
5.6.4
Rating of protective device
The rating of the overcurrent protective device located internally shall be such as to protect
against conditions described in 5.3.1/RD.
Compliance with 5.6 is checked by inspection and tests.
5.7
5.7.1
Protection of personnel – Safety interlocks
Operator protection
To areas where operators have access, the provisions of 2.8/RD safety interlocks, apply.
– 22 –
5.7.2
62040-1-1 © IEC:2002(E)
Service person protection
In addition to the requirements of 2.8/RD, the following subclauses apply to service persons
who find it necessary to reach over, under, across and around an uninsulated electrical part
or moving part to make adjustments or measurements while the UPS is energized.
5.7.2.1 Covers
Parts at hazardous voltage or energy level shall be so arranged and covers so located as to
reduce the risk of electric shock or high current levels while covers are being removed and
replaced.
5.7.2.2 Location and guarding of parts
Parts at hazardous voltage or energy level and moving parts that involve a risk of injury to
persons shall be located, guarded or enclosed so as to reduce the likelihood of unintentional
contact by a service person adjusting or resetting controls, or the like, or performing
mechanical functions that may be performed with the UPS energized such as lubricating a
motor, adjusting the setting of a control with or without marked dial settings, resetting a trip
mechanism or operating a manual switch.
5.7.2.3 Parts on doors
Parts at hazardous voltage or energy level, located on the rear side of a door, shall be
guarded or insulated to reduce the likelihood of unintentional contact of the live parts by a
service person.
Compliance with 5.7.1 to 5.7.2.3 is checked by inspection, measurement and use of the test
finger (figure 2A/RD).
5.7.2.4 Component access
A component that requires inspection, resetting, adjustment, servicing or maintenance while
energized shall be so located and mounted with respect to other components and with respect
to grounded metal parts that it is accessible for electrical service functions without subjecting
the service person to the risk of electric shock, hazardous energy level, high current or
injury to person by adjacent moving parts. Access to a component shall not be impeded by
other components or wiring.
For an adjustment that is to be made with a screwdriver or similar tool when the UPS is
energized, the requirement in 2.8.3/RD necessitates that protection be provided so that
inadvertent contact with adjacent uninsulated hazardous live parts involving a risk of electric
shock or hazardous energy level is unlikely, taking into consideration that misalignment of
the tool with the adjustment can result when an adjustment is attempted.
This protection shall be provided by
–
location of the adjustment means away from uninsulated hazardous live parts, or
–
a guard to reduce the likelihood of the tool from contacting uninsulated live parts.
Compliance is checked by inspection and, where necessary, by fault simulation.
5.7.2.5 Moving parts
Moving parts that can cause injury to persons during service operations shall be located or
protected so that unintentional contact with the moving parts is not likely.
62040-1-1 © IEC:2002(E)
– 23 –
5.7.2.6 Capacitor banks
Capacitor banks shall be fitted with a means of discharge for protection of service persons.
A warning label shall be added if discharge time exceeds 1,0 s, stating the time taken to
reduce the hazard to a safe level (not greater than 5 min) (see 1.2.8.4/RD and 1.2.8.7/RD).
5.7.2.7 Internal batteries
Internal batteries shall be so arranged as to minimize risk of electric shock from inadvertent
contact with terminals and the interconnection method shall be such as to minimize risk of
short-circuiting and electric shock during servicing and replacement.
Compliance with 5.7.2.4 to 5.7.2.7 is checked by inspection.
5.8
Clearances, creepage distances and distances through insulation
The provisions of 2.10/RD apply.
5.9
External signalling circuits
The provisions of 2.3/RD and 2.5/RD apply.
5.10 Limited power source
The provisions of 2.5/RD apply.
6
Wiring, connections and supply
6.1
General
The provisions of 3.1/RD apply.
6.2
Connection to power
The provisions of 3.2.2/RD, 3.2.3/RD, 3.2.4/RD, 3.2.5/RD, 3.2.6/RD, 3.2.7/RD, 3.2.8/RD apply
together with the following.
6.2.1
Means of connection
For safe and reliable connection to the primary power supply, the UPS shall be provided with
one of the following:
–
terminals for permanent connection to the supply;
–
a non-detachable power supply cord for permanent connection to the supply, or for
connection to the supply by means of a plug;
–
an appliance inlet for connection of a detachable power supply cord.
Where equipment is provided with more than one supply connection (for example, with
different voltages/frequencies or as a redundant power), the design shall be such that all of
the following conditions are met:
–
separate means of connection are provided for different circuits;
–
supply plug connections, if any, are not interchangeable if a hazard could result from
incorrect attachment;
–
the operator is prevented from touching bare parts at ELV or hazardous voltages, such
as plug contacts, when one or more connectors have been disconnected.
Compliance is checked by inspection.
– 24 –
6.3
62040-1-1 © IEC:2002(E)
Wiring terminals for external power conductors
The provisions of 3.3.1/RD, 3.3.2/RD, 3.3.3/RD, 3.3.4/RD, 3.3.5/RD, 3.3.6/RD, 3.3.7/RD,
3.3.8/RD apply.
7
Physical requirements
The provisions of 4.1/RD apply together with the following.
7.1
Enclosure
The frame or chassis of a unit shall not be used to carry current during intended operation.
NOTE The frames or chassis connected to earth ground can carry leakage currents or current during an electric
malfunction.
A part, such as a dial or nameplate that serves as a functional part of the enclosure shall
comply with the enclosure requirements.
Individual modules of a modular unit may be of open construction – either no enclosure or
partial enclosure is supplied – provided that when the modules are assembled together in the
field as intended, the unit enclosure complies with the requirements in 2.1/RD. Identification
of the modules and electrical connections between modules shall comply with clause 3/RD.
The enclosure shall protect the various parts of the unit. The parts of an enclosure that are
required to be in place to comply with the requirements for risk of fire, electric shock, injury to
persons and hazardous energy level shall comply with the applicable enclosure
requirements specified in this standard.
Compliance is checked by inspection.
7.2
Stability
The provisions of 4.1/RD apply together with the following.
Under conditions of normal use, units and equipment shall not become physically unstable to
the degree that they may become a hazard to operators and service persons.
If a reliable stabilizing means is used to improve stability when drawers, doors, etc., are
opened, it shall be automatic in operation when associated with operator use. Where it is not
automatic, suitable and conspicuous markings shall be provided to caution service persons.
Compliance is checked by the following tests, where relevant. Each test is carried out
separately. During the tests, containers shall contain the amount of substance within their
rated capacity producing the most disadvantageous condition. Castors, if used in the normal
operation of the unit, shall be in their most unfavourable position.
A unit shall not tip over, with or without batteries installed, in whatever represents the most
severe conditions outlined in the RD.
7.3
Mechanical strength
The provisions of 4.2/RD apply.
62040-1-1 © IEC:2002(E)
7.4
– 25 –
Construction details
The provisions of 4.3/RD apply together with the following.
7.4.1
Openings
Openings vertically above bare parts at hazardous voltages in the top of a fire enclosure or
an electrical enclosure shall not exceed 5 mm in any dimension unless the construction
prevents vertical access to such parts, for example, by means of a trap or similar restriction
(see figure 4B/RD). This requirement does not apply to equipment having openings in the top
of an enclosure with a height exceeding 1,8 m.
7.4.2
Gas concentration
Equipment that, in normal use, contains batteries shall incorporate adequate safeguards
against the risk of explosive gas concentration and internal or external spillage.
NOTE
See also 7.6.
Compliance is checked by inspection.
7.4.3
Equipment movement
Equipment provided with castors to enable easy movement to installed position and intended
to have rigid fixed wiring shall have an additional method to ensure the equipment does not
move when installed. For a unit having mass of 25 kg or more a force equal to 20 % of the
weight of the unit but not more than 250 N is applied to verify that the unit does not move.
Compliance is checked by inspection and test.
7.5
Resistance to fire
The provisions of 4.7/RD apply.
Batteries shall have a flammability Class HB or better (see annex A/RD).
7.6
Battery location
Batteries for use with UPS require separated or closed locations. They may be designed as
–
separate battery rooms or buildings,
–
separate cabinets or compartments, indoor or outdoor,
–
battery bays or compartments within the UPS.
Batteries shall be installed taking into account the following requirements.
Compliance is checked in accordance with 7.6.1 to 7.6.8, as applicable.
7.6.1
Accessibility and maintainability
Battery poles and battery connectors shall be accessible so that their fixings can be tightened
with the correct tools. Batteries with liquid electrolyte must be so located that the battery cell
caps are accessible for electrolyte tests and readjusting of electrolyte levels.
Compliance is checked by inspection and application of the tools and measuring equipment
supplied or recommended by the battery manufacturer's conditions.
– 26 –
7.6.2
62040-1-1 © IEC:2002(E)
Vibration
Protection against vibration shall be provided according to the battery manufacturer’s
instructions.
Compliance is checked by inspection.
7.6.3
Distance
Battery cells with a casing constructed of insulating material or which are enclosed by an
insulating cover, may be mounted without any distance to each other provided the stated
ventilation and battery temperature requirements are met.
Compliance is checked by inspection.
7.6.4
Insulation
NiCd cells in conductive casings require adequate insulation between each other and to
cabinets or compartments. Such insulation shall meet the requirements of 5.2.
Compliance is checked by test.
7.6.5
Wiring
Contacts, connections and wiring must be protected against effects of ambient temperature,
moisture, gas, vapour and mechanical stress according to clause 6.
Compliance is checked by inspection and test.
7.6.6
Electrolyte spillage
Batteries require adequate protection against electrolyte spillage, such as electrolyte resistive
coating of battery trays and cabinets.
NOTE
This requirement does not apply to VRLA type batteries.
Compliance is checked by inspection.
7.6.7
Ventilation
Proper ventilation shall be provided so that any potential explosive mixtures of hydrogen and
oxygen are dispersed safely below hazardous levels.
For battery compartments (separate or combined), the determination method of the necessary
airflow to ensure adequate dissolution levels is given in annex N.
In combined apparatus of battery and electrical components, attention shall be given to
prevent ignition of local concentrations of hydrogen and oxygen by adjacent operational
arcing parts, such as contactors and switches close to battery vents/valves.
This shall be achieved by the use of fully enclosed components or separation of battery
compartments or adequate ventilation dependent upon the technical construction of the UPS
and battery.
The sufficiency of the distance between battery vents/valves and any open arcing component
shall be demonstrated by the manufacturer with technical data for the construction of the
equipment under test.
62040-1-1 © IEC:2002(E)
– 27 –
For battery rooms proper information on the required flow of air shall be provided in the
installation instructions where the battery installation is supplied with the UPS.
Compliance is checked by inspection, calculation and measurement. If non-enclosed
components are used, a distance of 500 mm between operational arcing parts and the battery
vents/valves is normally deemed to meet this requirement.
7.6.8
Charging voltages
Batteries shall be protected against excessive voltages under any single fault condition, for
example, due to a charger failure, by switching off the charger or interrupting the charging
current. The charging voltage limits shall be as declared by the manufacturer.
Compliance is checked by circuit evaluation and a performance test.
7.7
Temperature rise
The provisions of 4.5.2/RD apply with the following.
Table 2 – Temperature-rise limits
Maximum
temperature rise
Parts
°C
Insulation, including winding insulation, of
– Class A material 105
75
– Class E material 120
90
– Class B material 130
95
– Class F material 155
115
– Class H material 180
140
– Class C material 200
150
– Class N material 220
165
– Class P material 240
185
Table 3 – Permitted temperature limits for magnetic windings
at the end of stored energy mode operation
Insulation class
Temperature by average
resistance method
Temperature by
thermocouple method
°C
°C
°C
105
127
117
120
142
132
130
152
142
155
171
161
180
195
185
200
209
199
220
216
206
240
234
224
– 28 –
8
62040-1-1 © IEC:2002(E)
Electrical requirements and simulated abnormal conditions
8.1
General
The provisions of 5.1.1/RD apply together with the following.
8.1.1
Earth leakage current
Where the circuit configuration is such that in any mode of operation the UPS protective earth
conductor will carry the sum of the UPS and connected load earth leakage currents, the UPS
shall meet the requirements of 5.1.2/RD.
Where the earth leakage current exceeds 3,5 mA, the requirements of 5.1.7/RD shall apply.
Compliance is checked by inspection and by the relevant tests.
8.1.2
Pluggable equipment type B UPS
UPS classified as pluggable equipment type B shall have a non-detachable power supply
cord meeting the requirements of 3.2.5/RD.
Compliance is checked by inspection.
8.2
Electric strength
The provisions of 5.2/RD apply.
8.3
Abnormal operating and fault conditions
The provisions of 5.3.1/RD, 5.3.2/RD, 5.3.3/RD, 5.3.4/RD, 5.3.5/RD, 5.3.8/RD apply together
with the following.
8.3.1
Simulation of faults
For components and circuits other than those covered by 5.3.2/RD, 5.3.3/RD and 5.3.5/RD,
compliance is checked by simulating the following conditions:
–
faults in any components in primary circuits;
–
faults in any components where failure could adversely affect supplementary insulation
or reinforced insulation;
–
additionally, for equipment that does not comply with the requirements of 4.4.2/RD and
4.4.3/RD, faults in all components;
–
faults arising from connection of the most unfavourable load impedance to terminals and
connectors that deliver power or signal outputs from the equipment, other than main power
outlets.
Where there are multiple outlets having the same internal circuitry, the test needs to be made
only to one sample outlet.
For components in primary circuits associated with the mains input and output, such as
the supply cord, appliance couplers, RFI filtering components, bypass, switches and their interconnecting wiring, no fault is simulated, provided that the component complies with 5.3.6 a)/RD.
62040-1-1 © IEC:2002(E)
– 29 –
The equipment, circuit diagrams and component specifications shall be examined to
determine those fault conditions that might reasonably be expected to occur.
NOTE Examples are short circuits and open circuits of transistors, diodes and capacitors (particularly the
electrolytic capacitors), faults causing continuous dissipation in resistors designed for intermittent dissipation, and
internal faults in integrated circuits causing excessive dissipation.
The tests are applied one at a time with the equipment operating at rated voltage or at the
upper limit of the rated voltage range.
It is permitted to test circuits within the equipment, or to test simulated circuits, separate
components or sub-assemblies outside the equipment.
In addition to the compliance criteria given in 5.3.3/RD temperatures in the transformer
supplying the component under test shall not exceed those specified in annex C/RD and
account shall be taken of the exception detailed in such annex.
8.3.2
Conditions for tests
Equipment shall be tested by applying any condition that may be expected in normal use and
foreseeable misuse, with the UPS operating at rated voltage or at the upper limit of the rated
voltage range.
NOTE
Examples of normal use or foreseeable misuse conditions are:
–
any operation of accessible operating devices, such as knobs, levers, keys and bars, that is not in accordance
with the manufacturer's instructions;
–
covering of groups of ventilating openings that are likely to be covered simultaneously, for example, groups of
openings situated on one side or on the top of the equipment, such groups to be covered in turn;
–
operation under any output overload conditions, including a short circuit.
In addition, equipment that is provided with a protective covering shall be tested with the
covering in place under normal idling conditions until steady conditions are established.
9
Connection to telecommunication networks
The provisions of clause 6/RD and the following apply.
1.4.8/RD, 1.4.11/RD, 2.1.1/RD, 2.1.1.1/RD, 2.1.1.2/RD, 2.1.3/RD, 2.3/RD, 2.3.1/RD, 2.3.2/RD,
2.3.3/RD, 2.3.4/RD, 2.3.5/RD, 2.6.1/RD, 2.6.5.8/RD, 2.9.5/RD, 2.10.3.3/RD, 2.10.3.4/RD,
2.10.4/RD, 3.5/RD, 3.5.1/RD, 3.5.2/RD, annex M/RD.
– 30 –
62040-1-1 © IEC:2002(E)
Annexes
The following annexes/RD apply.
A (normative)
See annex A/RD
Test for resistance to heat and fire
B (normative)
See annex B/RD
Motor tests under abnormal conditions
C (normative)
See annex C/RD
Transformers
D (normative)
See annex D/RD
Measuring instruments for touch-current tests
E (normative)
See annex E/RD
Temperature rise of a winding
F (normative)
See annex F/RD
Measurements of clearances and creepage distances
G (normative)
See G/RD
Alternative method for determining minimum clearances.
J (informative)
See annex J/RD
Table of electrochemical potentials
K (normative)
See annex K/RD
Thermal controls
In addition, the following annexes apply: H, L, M, N and X.
62040-1-1 © IEC:2002(E)
– 31 –
Annex H
(informative)
Guidance on protection against ingress of water and foreign objects
When intended application is such that the ingress of water or foreign objects is possible, an
appropriate degree of protection shall be selected from IEC 60529, an extract from which is
included in this annex.
It shall not be possible to remove, without the aid of a tool, parts that ensure the required
degree of protection against ingress of water and foreign objects.
The information in tables H.1 and H.2 is extracted from IEC 60529. For test conditions and
compliance, see IEC 60529.
Table H.1 – Degrees of protection against foreign objects indicated
by the first characteristic numeral
First
characteristic
numeral
a
Degree of protection
Degree of protection
Brief description
Definition
0
Non-protected
–
1
Protected against solid foreign objects of
50 mm Ø and greater
The object probe, sphere of 50 mm Ø, shall not
fully penetrate a
2
Protected against solid foreign objects of
12,5 mm Ø and greater
The object probe, sphere of 12,5 mm Ø, shall not
fully penetrate a
3
Protected against solid foreign objects of
2,5 mm Ø and greater
The object probe, sphere of 2,5 mm Ø, shall not
penetrate at all a
4
Protected against solid foreign objects of
1,0 mm Ø and greater
The object probe, sphere of 1,0 mm Ø, shall not
penetrate at all a
5
Dust protected
Ingress of dust is not totally prevented, but dust
shall not penetrate in a quantity to interfere with
satisfactory operation of the apparatus or to
impair safety
6
Dust tight
No ingress of dust
The full diameter of the object probe shall not pass through an opening of the enclosure.
– 32 –
62040-1-1 © IEC:2002(E)
Table H.2 – Degrees of protection against water indicated by
the second characteristic numeral
Second
characteristic
numeral
Degree of protection
Degree of protection
Brief description
Definition
0
Non-protected
–
1
Protected against vertically falling water
drops
Vertically falling drops shall have no harmful
effects
2
Protected against vertically falling water
drops when enclosure is tilted up to 15°
Vertically falling drops shall have no harmful
effects when the enclosure is tilted at any
angle up to 15° on either side of the vertical
3
Protected against spraying water
Water sprayed at an angle up to 60° on either
side of the vertical shall have no harmful
effects
4
Protected against splashing water
Water splashed against the enclosure from any
direction shall have no harmful effects
5
Protected against water jets
Water projected in jets against the enclosure
from any direction shall have no harmful effects
6
Protected against powerful water jets
Water projected in powerful jets against the
enclosure from any direction shall have no
harmful effects
7
Protected against the effects of temporary
immersion in water
Ingress of water in quantities causing harmful
effects shall not be possible when the
enclosure is temporarily immersed in water
under standardized conditions of pressure and
time
8
Protected against the effects of continuous
immersion in water
Ingress of water in quantities causing harmful
effects shall not be possible when the
enclosure is continuously immersed in water
under conditions which shall be agreed
between manufacturer and user, but which are
more severe than for numeral 7
62040-1-1 © IEC:2002(E)
– 33 –
Annex L
(normative)
Backfeed protection test
L.1
General
A UPS shall not allow excessive currents to be available between any pairs of input terminals
of the UPS during its stored energy mode of operation. Where the measured open-circuit
voltage does not exceed 30 V r.m.s. (42,4 V peak, 60 V d.c.) the measurement need not be
taken.
Compliance is checked by circuit analysis, fault testing of components in the control circuitry
and the tests in L.2 and L.3.
L.2
Test for pluggable equipment type A or pluggable equipment type B UPS
When the UPS is operating in its stored energy mode, and with the input terminals or plugs
disconnected, the following conditions shall apply for both no-load and full-load conditions.
a) Under normal and any single-fault conditions, the current shall not exceed 3,5 mA when
measured between any two user accessible input terminals, using the circuit shown in
annex D/RD.
b) Protection shall operate within 1 s of the disconnection of the input a.c. power supply.
L.3
Test for permanently connected UPS
When the UPS is operating in the normal mode with an a.c. power output current in both load
and no-load condition and with a single fault applied to the component being investigated, the
fault placed on the component shall simulate the failure mode of that component. The a.c.
input supply shall then be disconnected and the current is not to exceed 3,5 mA for both
normal and single-fault conditions.
Where backfeed protection device is provided externally, the compliance shall be determined
by relevant circuit diagram inspection and by operating test of the external backfeed isolator
monitoring circuit.
The UPS protective conductor shall not be disconnected during the test.
Protection shall operate within 15 s of the disconnection of the input a.c. power supply.
L.4
Single-fault conditions
For the tests in L.2 and L.3, single-fault conditions shall be determined by circuit inspection
and investigation, but shall also include potential load faults such as phase-to-earth isolation
failures.
– 34 –
62040-1-1 © IEC:2002(E)
(L1)
o
(L2)
N o
•
R
EUT
•
C
PE o
•
C = 22 nF
C
•
IEC
2000/02
Single-phase output
•
Ø1 o
Ø2
o
N
•
EUT
Ø3 o
•
•
C = 22 nF
o
PE o
3xR
•
IEC
2001/02
Three-phase output
EUT = Equipment under test
Figure L.1 – Potential load faults
The value of resistive load R shall be equal to that specified as the maximum load at unit
power factor by the manufacturer.
62040-1-1 © IEC:2002(E)
– 35 –
Annex M
(normative)
Examples of reference load conditions
M.1
General
The UPS is loaded according to the manufacturer's specifications given in the instruction
manual. If the specifications are missing, the following reference load conditions shall be
used.
A UPS can be loaded with different linear and non-linear loads (see 3.3).
A linear load is defined by the fact that, with a sinusoidal voltage supplied to such a load, the
current will be sinusoidal also.
A non-linear load with sinusoidal voltage has non-sinusoidal current.
The most common types of linear loads are:
–
resistive;
–
inductive-resistive;
–
capacitive-resistive.
A non-linear load could be:
–
rectified capacitive load;
–
thyristor or transductor controlled load (phase control).
In the low power range < 3 kVA, the rectifier in bridge connection with capacitive load is the
most common. The load is characterized by the following symbols:
S
= output apparent power in VA
P
= output active power in W
λ
= power factor = P/S
U = output voltage in V
f
= frequency in Hz
M.2
Reference resistive load
For resistive loads, the UPS is loaded with a resistor up to nominal power.
U
RL
IEC
2002/02
RL =
U2
P
– 36 –
M.3
62040-1-1 © IEC:2002(E)
Reference inductive-resistive load
For inductive-resistive loads, an inductance is connected in series or in parallel with a
resistor. The resistor (R) and inductance (L) are given by the following formulae:
a) Series connection
R=
U
L
U2
(Ω)
Sλ
R
U2
L=
IEC
2π f S 1 −
2003/02
(H)
λ2
b) Parallel connection
L
R=
U
S
λ
(Ω)
R
L=
IEC
M.4
U2
2004/02
U 2 1− λ2
2π f S
(H)
Reference capacitive-resistive loads
For capacitive-resistive loads, a capacitance and a resistor are connected either in series or
in parallel. The resistor (R) and capacitance (C) are given by the following formulae:
a) Series connection
C
R=
U
U2 λ
S
R
C=
IEC
2005/02
(Ω)
S
(F)
2π f U 2 1 − λ 2
b) Parallel connection
R=
U
C
R
C=
IEC
2006/02
U2
Sλ
(Ω)
S 1− λ2
2π f U 2
(F)
62040-1-1 © IEC:2002(E)
M.5
– 37 –
Reference non-linear load
To simulate a single-phase steady-state rectifier/capacitor load, the UPS is loaded with a
diode-rectifier bridge which has a capacitor and a resistor in parallel on its output.
NOTE 1 The following is related to the frequency of 50 Hz to an output voltage distortion of max. 8 % and to
power factor λ = 0,7 (i.e. 70 % of the apparent power S will be dissipated as active power in the two resistors R 1
and R S ) .
The total single-phase load may be formed by a single load or formed by multiple equivalent
loads in parallel.
Rs
U
UC
R1
IEC
NOTE 2
2007/02
Resistor R S can be placed in either the a.c. or d.c. side of the rectifier bridge.
NOTE 3 The actual value of the components used in the test shall be in the range with respect to the calculated
values of:
– R S = ±10 %
– R 1 = to be adjusted during test to obtain rated output apparent power.
–C
= +25 %.
U C is the rectified voltage in V;
R1
is the load resistor, representing 66 % of active power of the total apparent power S;
R S is the serial line resistor, representing 4 % active power of the total apparent power S
(the 4 % is according to IEC/TC 64 proposal of voltage drop in power lines).
A ripple voltage, 5 % peak to peak of the capacitor voltage U C corresponds to a time constant
of R 1 × C = 0,15 s.
Observing peak voltage, distortion of line voltage, voltage drop in line cables and ripple
voltage of rectified voltage, the average of the rectified voltage U C will be:
UC =
2 × (0,92 × 0,96 × 0,975) × U = 1,22 × U
and the values of resistors R S , R 1 and capacitor C will be calculated by the following:
R S = 0,04 × U 2 /S
R 1 = (U C ) 2 /(0,66 × S)
C = 0,15 s /R 1
NOTE 4
The value of capacitor C is valid for 50 Hz and mixed 50 Hz and 60 Hz designs.
– 38 –
M.5.1
62040-1-1 © IEC:2002(E)
Test method
a) The non-linear reference load circuit shall initially be connected to an a.c. input supply at
the rated output voltage specified for the UPS under test.
b) The a.c. input supply impedance shall not cause a distortion of the a.c. input waveform
greater than 8 % when supplying this reference load.
c) The resistor R 1 shall be adjusted to obtain the rated output apparent power (S) specified
for the UPS under test.
d) After adjustment of resistor R 1 , the non-linear reference load shall be applied to the
output of the UPS under test without further adjustment.
e) The reference load shall be used, without further adjustment, whilst performing all tests to
obtain parameters required under non-linear loading, as defined in the proper clauses.
M.5.2
Connection of the non-linear reference load
a) For single-phase UPS, the non-linear reference load is used with apparent power S equal
to the UPS rated apparent power up to 33 kVA.
b) For single-phase UPS rated above 33 kVA, the non-linear load is used with apparent
power S of 33 kVA, plus linear load up to the apparent and active power ratings of the
UPS.
c) For three-phase UPS designed for single-phase loads, equal single-phase non-linear
loads shall be connected either line-neutral or line-to-line, depending upon the national
power system configuration the UPS is designed for, up to 100 kVA UPS apparent and
active power rating.
d) For three-phase UPS rated above 100 kVA, the loads according to clause 3 shall be used,
plus linear load up to the apparent and active power ratings of the UPS.
62040-1-1 © IEC:2002(E)
– 39 –
Annex N
(normative)
Ventilation of battery compartments
N.1 General
The enclosure or compartment housing a vented battery where gassing is possible during
heavy discharge, overcharging, or similar type of usage shall be vented. The means of
venting shall provide airflow throughout the compartment in order to reduce the risk of
build-up of pressure or accumulation of a gas mixture, such as hydrogen-air, involving a risk
of injury to persons.
Arcing parts, such as the contacts of switches, circuit breakers, and relays, shall not be
located in the enclosure or compartment housing a vented battery, nor shall the enclosure or
compartment vent into closed spaces where such parts are located. For purposes of this
requirement, fuses and connectors do not contain arcing parts. Battery or compartment
monitoring sensors (such as temperature sensors and the like) may be located in the
enclosure or compartment.
If the gas mixture is lighter than air (such as hydrogen-air), the requirement may necessitate
locating additional ventilation openings in the uppermost portions of the battery enclosure or
compartment where such a gas mixture may accumulate.
N.2 Hydrogen concentration
With reference to the above clause, the venting means shall prevent hydrogen concentrations
in excess of 4 % by volume. If the adequacy of the ventilation required is not obvious,
a determination shall be made by measurement of gas concentration in accordance with the
battery compartment ventilation test in N.4. A lead-acid battery at full charge, when most of
the charging energy goes into gas, will generate approximately 0,0283 m 3 of hydrogen gas
per cell for each 63 Ah of input. See N.3.
N.3 Blocked conditions
The ventilating means for an enclosure or a compartment housing a battery shall comply with
the requirements for blocked fan and blocked filter abnormal conditions.
N.4 Overcharge test
If a measurement is needed to determine if a battery compartment complies with N.2, the
battery supply is to be subjected to the overcharge test (see 7.6.8). During, and at the
conclusion of the test, the maximum hydrogen gas concentration shall not be more than 2 %
by volume; a safety factor of 2 is included. Measurements are to be made by sampling the
atmosphere inside the battery compartment at the periods of 2 h, 4 h, 6 h and 7 h during the
test. Samples of the atmosphere within the battery compartment are to be taken at the
location where the greatest concentration of hydrogen gas is likely, using an aspirator bulb
provided with the concentration measurement equipment, or other equivalent means.
When connected to a supply circuit adjusted to 106 % of the UPS's rated voltage, a battery
supply of a UPS is to be subjected to 7 h of overcharging using a fully charged battery. Any
user adjustable controls associated with the charger or charging circuit are to be adjusted for
the most severe charging rate.
– 40 –
62040-1-1 © IEC:2002(E)
Exception No. 1: This requirement does not apply to a UPS to be used with a battery supply
that is not investigated with the UPS.
Exception No. 2: This requirement does not apply to a UPS provided with a regulating circuit
preventing an increase in battery charging current when the a.c. input voltage is increased
from rated value to 106 % of rated value.
Exception No. 3: The formula listed below may be used to comply with the ventilation
requirements of this annex.
To allow for equalization (boost charging) and in the case of valve-regulated batteries,
operation over a wider range of ambient temperatures the factors of I shall use the 2,4 V/cell
figures.
The necessary ventilation air flow for a battery compartment shall be calculated by the
following formula:
Q=vqsnIC
where:
Q is the ventilation air flow, in m 3 /h;
v
is the necessary dilution of hydrogen (100 – 4)/4 = 24;
q
= 0,45 × 10 –3 m 3 /Ah generated hydrogen;
s
is the factor of safety, for example, s = 5;
n
is the number of battery cells;
I
= 2 A/100 Ah – conventional flooded cell batteries;
I
= 1 A/100 Ah – flooded battery cells with low antimony alloy;
I
= 0,5 A/100 Ah – flooded battery cells with recombination plugs;
I
= 0,2 A/100 Ah – valve regulated lead-acid batteries;
C
is the battery nominal capacity, in Ah at the 10 h discharge rate;
It is permitted to simplify the formula for Q by introducing the resultant value of
v q s = 0,054 m 3 /Ah.
Q = 0,054 n I C
Q is the air flow, m 3 /h
This amount of ventilation air flow shall preferably be ensured by natural air flow, otherwise by
enforced ventilation.
Inlet and outlet apertures shall allow for a free access of air flow. The mean speed of air shall
be in the region of 0,1 m/s.
62040-1-1 © IEC:2002(E)
– 41 –
With this amount of natural air flow, the battery compartment shall contain air inlet and outlet
apertures with a free area of K 1 = 28 h cm 2 /m 3
A ≥ K1 Q
A is the aperture, in cm 2 ; K 1 : 28 h cm 2 /m 3
or
A ≥ K2 n I X
K 2 = 1,51 cm 2 /A
NOTE 1 Natural ventilation is applicable where the electrical power for hydrogen generation keeps below certain
limits. Otherwise the ventilation air outlets would exceed acceptable dimensions. The limits for natural ventilation
depend on the battery capacity and the number of cells, and also on the battery technology (vented cells, valveregulated cells), and the battery charging voltage applied.
The above calculation method will result in a sufficient degree of safety against explosion,
assuming hot (>300 °C) or sparking components are kept at adequate distance from battery
vent plugs or gas pressure outlets. In battery rooms, a distance of 500 mm may be regarded
as ensuring sufficient safety. In battery compartments or cabinets or batteries built-in with
UPS, it is permitted to reduce this distance depending on the level of ventilation.
The most severe charging rate referred to above is the maximum charging rate that does not
cause a thermal or overcurrent protective device to open.
– 42 –
62040-1-1 © IEC:2002(E)
Annex X
(informative)
Guidance for disconnection of batteries during shipment
X.1 Applicable products
This informative annex applies to UPS and battery cabinets containing internal batteries.
Currently the following provisions are for use as a guide only. It may be a normative annex in
the future.
X.2 Battery disconnection
Manufacturers should provide a means to disconnect the battery for the purposes of
shipment. The means shall be located as close to the battery as possible and before the
battery circuit connects to any other electrical devices or circuits, including printed wiring
assemblies.
X.3 Package labelling/marking
A precautionary label should be affixed to the shipping carton to alert individuals as to
whether the batteries within the package have been disconnected or not.
Manufacturers should use the label shown in figure X.1 for products that have had the battery
disconnected prior to shipment.
!
CAUTION IF DAMAGED
IF DAMAGED
BATTERIES, NON-SPILLABLE
_
+
Pb
Battery is NOT connected
Packages, crushed, punctured, or torn such that
contents are revealed, should be set aside in an
isolated area and be inspected by a qualified
person. If the package is deemed to be not
shippable, contents shall be promptly collected,
segregated, and either the consignor or consignee
contacted.
IEC
2008/02
Figure X.1 – Precautionary label for products shipped with the battery disconnected
Manufacturers shall use the label shown in figure X.2 for products that have not had the
battery disconnected prior to shipment.
62040-1-1 © IEC:2002(E)
!
– 43 –
CAUTION IF DAMAGED
IF DAMAGED
BATTERIES, NON-SPILLABLE
_
+
Pb
Battery IS connected
Packages, crushed, punctured, or torn such that
contents are revealed, should be set aside in an
isolated area and be inspected by a qualified
person. If the package is deemed to be not
shippable, contents shall be promptly collected,
segregated, and either the consignor or consignee
contacted.
IEC
2009/02
Figure X.2 – Precautionary label for products shipped with the battery connected
NOTE The "Pb" in the battery symbol for figure X.1 and figure X.2 pertains to sealed lead acid batteries. The
appropriate chemical symbol shall be substituted for other battery chemistries.
X.4
Damage inspection
Cartons that have been crushed, punctured, or torn in such a way that contents are revealed
shall be set aside in an isolated area and inspected by a qualified person. If the package is
deemed to be not shippable, the contents shall be promptly collected, segregated, and either
the consignor or consignee contacted. Manufacturers should communicate these guidelines to
shippers and handlers of the applicable products.
X.5
The importance of safe handling procedures
UPS manufacturers in this programme have conducted comprehensive tests to ensure the
equipment they distribute around the world is safe for air transport. Nonetheless, it is
important to understand that UPS and battery cabinets containing internal batteries can cause
fire, smoke or other similar safety hazards if damaged. These products must be handled with
care and immediately inspected if visibly damaged.
____________
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or
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Q7
I work for/in/as a:
(tick all that apply)
manufacturing
R
consultant
R
government
R
test/certification facility
R
public utility
R
education
R
military
R
other.....................................................
Q5
This standard meets my needs:
(tick one)
not at all
nearly
fairly well
exactly
R
R
R
R
I read/use the: (tick one)
French text only
English text only
both English and French texts
This standard will be used for:
(tick all that apply)
general reference
R
product research
R
product design/development
R
specifications
R
tenders
R
quality assessment
R
certification
R
technical documentation
R
thesis
R
manufacturing
R
other.....................................................
Please assess the standard in the
following categories, using
the numbers:
(1) unacceptable,
(2) below average,
(3) average,
(4) above average,
(5) exceptional,
(6) not applicable
timeliness .............................................
quality of writing....................................
technical contents.................................
logic of arrangement of contents ..........
tables, charts, graphs, figures ...............
other ....................................................
Q8
Q4
If you ticked NOT AT ALL in Question 5
the reason is: (tick all that apply)
Q9
R
R
R
Please share any comment on any
aspect of the IEC that you would like
us to know:
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ISBN 2-8318-6541-7
-:HSMINB=][ZYV[:
ICS 29.200
Typeset and printed by the IEC Central Office
GENEVA, SWITZERLAND
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