IEC 62040-1-2:2002

Uninterruptible power systems (UPS) - Part 1-2: General and safety requirements for UPS used in restricted access locations

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".

Alimentations sans interruption (ASI) - Partie 1-2: Exigences générales et règles de sécurité pour les ASI utilisées dans des locaux d'accès restreints

s'applique aux alimentations sans interruption électroniques (ASI) possédant un dispositif d'accumulation de l'énergie sur la liaison à courant continu. Elle est utilisée conjointement avec la CEI 60950-1, qui est référencée «RD» dans la présente norme.

General Information

• Status: Replaced
• Publication Date: 27-Aug-2002
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• Technical Committee: SC 22H - Uninterruptible power systems (UPS)
• Drafting Committee: WG 1 - TC 22/SC 22H/WG 1
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 11-Jun-2008

Relations

• Replaced By: IEC 62040-1:2008 - Uninterruptible power systems (UPS) - Part 1: General and safety requirements for UPS
• Effective Date: 05-Sep-2023
• Corrected By: IEC 62040-1-2:2002/COR1:2002 - Corrigendum 1 - Uninterruptible power systems (UPS) - Part 1-2: General and safety requirements for UPS used in restricted access locations
• Effective Date: 05-Sep-2023
• Corrected By: IEC 62040-1-2:2002/COR2:2004 - Corrigendum 2 - Uninterruptible power systems (UPS) - Part 1-2: General and safety requirements for UPS used in restricted access locations
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
62040-1-2
First edition
2002-08
Uninterruptible power systems (UPS) –
Part 1-2:
General and safety requirements for UPS
used in restricted access locations
Alimentations sans interruption (ASI) –
Partie 1-2:
Prescriptions générales et règles de sécurité pour les ASI
utilisées dans des locaux d'accès restreint

Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,

edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (http://www.iec.ch/searchpub/cur_fut.htm)
enables you to search by a variety of criteria including text searches, technical
committees and date of publication. On-line information is also available on
recently issued publications, withdrawn and replaced publications, as well as
corrigenda.
• IEC Just Published
This summary of recently issued publications (http://www.iec.ch/online_news/
justpub/jp_entry.htm) is also available by email. Please contact the Customer
Service Centre (see below) for further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
Email: [e-mail]
Tel: [phone]
Fax: [phone]
INTERNATIONAL IEC
STANDARD
62040-1-2
First edition
2002-08
Uninterruptible power systems (UPS) –
Part 1-2:
General and safety requirements for UPS
used in restricted access locations
Alimentations sans interruption (ASI) –
Partie 1-2:
Prescriptions générales et règles de sécurité pour les ASI
utilisées dans des locaux d'accès restreint

 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: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
X
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 62040-1-2  IEC:2002(E)
CONTENTS
FOREWORD . 4

1 Scope and specific applications . 6

1.1 Scope . 6

1.2 Specific applications . 6

2 Normative references. 7

3 Definitions . 8

4 General requirements .11

4.1 UPS design and construction.11
4.2 User information .11
4.3 Classification of UPS .11
4.4 General conditions for tests .11
4.5 Operating parameters for tests .11
4.6 Loads for tests.12
4.7 Components .12
4.8 Power interfaces.12
4.9 Marking and instructions.12
5 Fundamental design requirements .17
5.1 Protection against electric shock and energy hazards.17
5.2 SELV .18
5.3 Emergency switching device.18
5.4 Backfeed protection.19
5.5 Insulation.19
5.6 Safety extra-low voltage (SELV) circuits .20
5.7 Limited current circuits.20
5.8 Provisions for protective earthing.20
5.9 AC and d.c. power isolation .20
5.10 Overcurrent and earth fault protection.21
5.11 Service person protection .22
5.12 Clearances, creepage distances and distances through insulation .23
5.13 External signalling circuits .23
5.14 Limited power source.23
6 Wiring, connections and supply.24

6.1 General .24
6.2 Connection to power sources.24
6.3 Wiring terminals for external power conductors.24
7 Physical requirements.25
7.1 Enclosure .25
7.2 Stability .26
7.3 Construction details .26
7.4 Resistance to fire.27
7.5 Battery location.27
7.6 Temperature rise .29
8 Electrical requirements and simulated abnormal conditions .29
8.1 General .29
8.2 Electric strength.30
8.3 Abnormal operating and fault conditions .30

62040-1-2  IEC:2002(E) – 3 –
Annexes………………………………………………………………………………………………. 32-43

Table 1 – Location of battery protective device(s) .22

Table 2 – Temperature-rise limits.29

Table 3 – Permitted temperature limits for magnetic windings
at the end of stored energy mode operation .29

Table H.1 – Degrees of protection against foreign objects indicated

by the first characteristic numeral.33

Table H.2 – Degrees of protection against water indicated by the second characteristic

numeral.34

Table P.1 − (extract from IEC 60439-1) .43

– 4 – 62040-1-2  IEC:2002(E)
UNINTERRUPTIBLE POWER SYSTEMS (UPS) –

Part 1-2: General and safety requirements for UPS

used in restricted access locations

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 62040-1-2 has been prepared by IEC technical committee 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/23/FDIS 22H/25/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, N and P form an integral part of this standard.
Annex H is 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

62040-1-2  IEC:2002(E) – 5 –
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.
The contents of the corrigendum of December 2002 have been included in this copy.

– 6 – 62040-1-2  IEC:2002(E)
UNINTERRUPTIBLE POWER SYSTEMS (UPS) –

Part 1-2: General and safety requirements for UPS

used in restricted access locations

1 Scope and specific applications

1.1 Scope
This standard applies to electronic uninterruptible power systems 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 al
...

NORME CEI
INTERNATIONALE
IEC
62040-1-2
INTERNATIONAL
Première édition
STANDARD
First edition
2002-08
Alimentations sans interruption (ASI) –
Partie 1-2:
Exigences générales et règles de sécurité
pour les ASI utilisées dans des locaux
d'accès restreints
Uninterruptible power systems (UPS) –
Part 1-2:
General and safety requirements
for UPS used in restricted access locations

Numéro de référence
Reference number
CEI/IEC 62040-1-2:2004
Numérotation des publications Publication numbering

Depuis le 1er janvier 1997, les publications de la CEI As from 1 January 1997 all IEC publications are

sont numérotées à partir de 60000. Ainsi, la CEI 34-1 issued with a designation in the 60000 series. For

devient la CEI 60034-1. example, IEC 34-1 is now referred to as IEC 60034-1.

Editions consolidées Consolidated editions

Les versions consolidées de certaines publications de la The IEC is now publishing consolidated versions of its

CEI incorporant les amendements sont disponibles. Par publications. For example, edition numbers 1.0, 1.1

exemple, les numéros d’édition 1.0, 1.1 et 1.2 indiquent and 1.2 refer, respectively, to the base publication,
respectivement la publication de base, la publication de the base publication incorporating amendment 1 and
base incorporant l’amendement 1, et la publication de the base publication incorporating amendments 1
base incorporant les amendements 1 et 2. and 2.
Informations supplémentaires Further information on IEC publications
sur les publications de la CEI
Le contenu technique des publications de la CEI est The technical content of IEC publications is kept
constamment revu par la CEI afin qu'il reflète l'état under constant review by the IEC, thus ensuring that
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cette publication, y compris sa validité, sont dispo- relating to this publication, including its validity, is
nibles dans le Catalogue des publications de la CEI available in the IEC Catalogue of publications
(voir ci-dessous) en plus des nouvelles éditions, (see below) in addition to new editions, amendments
amendements et corrigenda. Des informations sur les and corrigenda. Information on the subjects under
sujets à l’étude et l’avancement des travaux entrepris consideration and work in progress undertaken by the
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NORME CEI
INTERNATIONALE
IEC
62040-1-2
INTERNATIONAL
Première édition
STANDARD
First edition
2002-08
Alimentations sans interruption (ASI) –
Partie 1-2:
Exigences générales et règles de sécurité
pour les ASI utilisées dans des locaux
d'accès restreints
Uninterruptible power systems (UPS) –
Part 1-2:
General and safety requirements
for UPS used in restricted access locations

© IEC 2004 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
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– 2 – 62040-1-2 © CEI:2004
SOMMAIRE
AVANT-PROPOS.6

1 Domaine d’application et applications spécifiques .10

1.1 Domaine d’application.10

1.2 Applications spécifiques.10

2 Références normatives.12

3 Définitions.14

4 Exigences générales.20
4.1 Conception et construction de l’ASI .20
4.2 Informations des utilisateurs.20
4.3 Classification des ASI.20
4.4 Conditions générales d’essais.20
4.5 Paramètres de fonctionnement pour les essais.22
4.6 Charges pour essais .22
4.7 Composants.22
4.8 Adaptation au réseau.22
4.9 Marquages et instructions .24
5 Exigences fondamentales de conception .34
5.1 Protection contre les chocs électriques et les dangers de transfert d’énergie .34
5.2 TBTS.36
5.3 Dispositif de coupure d’urgence .36
5.4 Protection contre un retour de tension en entrée .38
5.5 Isolation.38
5.6 Circuits très basse tension de sécurité (TBTS) .40
5.7 Circuits à limitation de courant .40
5.8 Dispositions pour la mise à la terre.40
5.9 Séparation de la source d’alimentation alternative et continue.40
5.10 Protection contre les surintensités et les défauts à la terre.42
5.11 Protection du personnel de maintenance .46
5.12 Distances dans l’air, lignes de fuite et distances à travers l’isolation .48
5.13 Circuits de signalisation externes .48
5.14 Source à puissance limitée.48

6 Câblage, connexions et alimentation .48
6.1 Généralités.48
6.2 Raccordement à la source d’alimentation .50
6.3 Bornes pour les conducteurs externes d’alimentation .50
7 Exigences physiques.52
7.1 Enveloppe.52
7.2 Stabilité.54
7.3 Détails de construction .54
7.4 Résistance au feu.56
7.5 Emplacement des batteries .56
7.6 Echauffements.60

62040-1-2 © IEC:2004 – 3 –
CONTENTS
FOREWORD.7

1 Scope and specific applications.11

1.1 Scope.11

1.2 Specific applications.11

2 Normative references.13

3 Definitions.15

4 General requirements.21

4.1 UPS design and construction.21
4.2 User information.21
4.3 Classification of UPS.21
4.4 General conditions for tests.21
4.5 Operating parameters for tests .23
4.6 Loads for tests .23
4.7 Components.23
4.8 Power interfaces.23
4.9 Marking and instructions.25
5 Fundamental design requirements.35
5.1 Protection against electric shock and energy hazards .35
5.2 SELV.37
5.3 Emergency switching device.37
5.4 Backfeed protection.39
5.5 Insulation.39
5.6 Safety extra-low voltage (SELV) circuits .41
5.7 Limited current circuits .41
5.8 Provisions for protective earthing .41
5.9 AC and d.c. power isolation.41
5.10 Overcurrent and earth fault protection .43
5.11 Service person protection.47
5.12 Clearances, creepage distances and distances through insulation.49
5.13 External signalling circuits.49
5.14 Limited power source.49
6 Wiring, connections and supply .49
...