IEC 62271-100:2021
(Main)High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers
High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers
IEC 62271-100:2021 is applicable to three-phase AC circuit-breakers designed for indoor or outdoor installation and for operation at frequencies of 50 Hz and/or 60 Hz on systems having voltages above 1 000 V. This document includes only direct testing methods for making-breaking tests. For synthetic testing methods refer to IEC 62271-101.
This third edition cancels and replaces the second edition published in 2008, Amendment 1:2012 and Amendment 2:2017. This edition constitutes a technical revision.
The main changes with respect to the previous edition are listed below:
– the document has been updated to IEC 62271-1:2017;
– Amendments 1 and 2 have been included;
– the definitions have been updated, terms not used have been removed;
– Subclauses 7.102 through 7.108 have been restructured.
The contents of the corrigendum of December 2021, July 2022 and January 2024 have been included in this copy.
Appareillage à haute tension - Partie 100: Disjoncteurs à courant alternatif
L’IEC 62271-100:2021 est applicable aux disjoncteurs triphasés à courant alternatif conçus pour l'installation à l'intérieur ou à l'extérieur, et pour fonctionner à des fréquences de 50 Hz et/ou 60 Hz sur des réseaux de tensions supérieures à 1 000 V. Le présent document inclut uniquement les méthodes d’essai direct pour les essais d’établissement et de coupure. Pour les méthodes d’essai synthétique, voir l’IEC 62271-101.
Cette troisième édition annule et remplace la deuxième édition parue en 2008 ainsi que l’Amendement 1:2012 et l’Amendement 2:2017. Cette édition constitue une révision technique.
Les principales modifications par rapport à l'édition précédente sont les suivantes:
- le document a été mis à jour par rapport à l’IEC 62271-1:2017;
- les amendements 1 et 2 ont été inclus;
- les définitions ont été actualisées et les termes non utilisés ont été supprimés;
- les paragraphes 7.102 à 7.108 ont été restructurés.
La version française de cette norme n’a pas été soumise au vote.
Le contenu du corrigendum de décembre 2021, de juillet 2022 et de janvier 2024 a été pris en considération dans cet exemplaire.
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IEC 62271-100 ®
Edition 3.1 2024-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
High-voltage switchgear and controlgear –
Part 100: Alternating-current circuit-breakers
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.
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IEC 62271-100 ®
Edition 3.1 2024-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
High-voltage switchgear and controlgear –
Part 100: Alternating-current circuit-breakers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.10 ISBN 978-2-8322-9579-3
REDLINE VERSION – 2 – IEC 62271-100:2021+AMD1:2024 CSV
IEC 2024
CONTENTS
INTRODUCTION to Amendment 1 . 13
1 Scope . 14
2 Normative references . 14
3 Terms and definitions . 15
3.1 General terms and definitions . 16
3.2 Assemblies . 20
3.3 Parts of assemblies . 20
3.4 Switching devices . 20
3.5 Parts of circuit-breakers . 22
3.6 Operational characteristics . 26
3.7 Characteristic quantities . 28
3.8 Index of definitions . 44
4 Normal and special service conditions . 48
5 Ratings . 48
5.1 General . 48
5.2 Rated voltage (U ) . 49
r
5.3 Rated insulation level (U , U , U ) . 49
d p s
5.4 Rated frequency (f ) . 49
r
5.5 Rated continuous current (I ) . 49
r
5.6 Rated short-time withstand current (I ) . 49
k
5.7 Rated peak withstand current (I ) . 49
p
5.8 Rated duration of short-circuit (t ) . 49
k
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 49
a
5.10 Rated supply frequency of auxiliary and control circuits . 49
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 49
5.101 Rated short-circuit breaking current (I ) . 50
sc
5.102 Rated first-pole-to-clear factor (k ) . 53
pp
5.103 Rated short-circuit making current . 53
5.104 Rated operating sequence . 53
5.105 Rated out-of-phase making and breaking current . 53
5.106 Rated capacitive currents. 54
6 Design and construction . 56
6.1 Requirements for liquids . 56
6.2 Requirements for gases . 56
6.3 Earthing . 56
6.4 Auxiliary and control equipment and circuits . 57
6.5 Dependent power operation . 57
6.6 Stored energy operation . 57
6.7 Independent unlatched operation (independent manual or power operation) . 57
6.8 Manually operated actuators . 57
6.9 Operation of releases . 57
6.10 Pressure/level indication . 58
6.11 Nameplates. 59
IEC 2024
6.12 Locking devices . 61
6.13 Position indication . 61
6.14 Degrees of protection provided by enclosures . 61
6.15 Creepage distances for outdoor insulators . 61
6.16 Gas and vacuum tightness . 61
6.17 Tightness for liquid systems . 61
6.18 Fire hazard (flammability) . 61
6.19 Electromagnetic compatibility (EMC) . 61
6.20 X-ray emission . 61
6.21 Corrosion . 61
6.22 Filling levels for insulation, switching and/or operation . 62
6.101 Requirements for simultaneity of poles during single closing and single
opening operations . 62
6.102 General requirement for operation . 62
6.103 Pressure limits of fluids for operation . 62
6.104 Vent outlets . 63
6.105 Time quantities . 63
6.106 Mechanical loads . 63
6.107 Circuit-breaker classification . 64
7 Type tests . 66
7.1 General . 66
7.2 Dielectric tests . 68
7.3 Radio interference voltage (RIV) test . 73
7.4 Resistance measurement . 73
7.5 Continuous current tests . 74
7.6 Short-time withstand current and peak withstand current tests . 75
7.7 Verification of the protection . 75
7.8 Tightness tests . 75
7.9 Electromagnetic compatibility tests (EMC) . 75
7.10 Additional tests on auxiliary and control circuits . 76
7.11 X-radiation test procedure for vacuum interrupters . 77
7.101 Mechanical and environmental tests . 77
7.102 Miscellaneous provisions for making and breaking tests . 89
7.103 General considerations for making and breaking tests . 107
7.104 Demonstration of arcing times . 114
7.105 Short-circuit test quantities . 133
7.106 Short-circuit test procedure . 157
7.107 Terminal fault tests . 159
7.108 Additional short-circuit tests . 163
7.109 Short-line fault tests . 166
7.110 Out-of-phase making and breaking tests . 179
7.111 Capacitive current tests . 181
7.112 Requirements for making and breaking tests on class E2 circuit-breakers
having a rated voltage above 1 kV up to and including 52 kV . 195
8 Routine tests . 196
8.1 General . 196
8.2 Dielectric test on the main circuit . 197
8.3 Tests on auxiliary and control circuits . 199
REDLINE VERSION – 4 – IEC 62271-100:2021+AMD1:2024 CSV
IEC 2024
8.4 Measurement of the resistance of the main circuit . 199
8.5 Tightness test . 199
8.6 Design and visual checks . 199
8.101 Mechanical operating tests . 199
9 Guide to the selection of switchgear and controlgear (informative) .
...
IEC 62271-100 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 100: Alternating-current circuit-breakers
Appareillage à haute tension –
Partie 100: Disjoncteurs à courant alternatif
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
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Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC 62271-100 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 100: Alternating-current circuit-breakers
Appareillage à haute tension –
Partie 100: Disjoncteurs à courant alternatif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-9885-5
– 2 – IEC 62271-100:2021 IEC 2021
CONTENTS
FOREWORD . 11
1 Scope . 13
2 Normative references . 13
3 Terms and definitions . 14
3.1 General terms and definitions . 15
3.2 Assemblies . 19
3.3 Parts of assemblies . 19
3.4 Switching devices . 19
3.5 Parts of circuit-breakers . 21
3.6 Operational characteristics . 25
3.7 Characteristic quantities . 27
3.8 Index of definitions . 43
4 Normal and special service conditions . 47
5 Ratings . 47
5.1 General . 47
5.2 Rated voltage (U ) . 48
r
5.3 Rated insulation level (U , U , U ) . 48
d p s
5.4 Rated frequency (f ) . 48
r
5.5 Rated continuous current (I ) . 48
r
5.6 Rated short-time withstand current (I ) . 48
k
5.7 Rated peak withstand current (I ) . 48
p
5.8 Rated duration of short-circuit (t ) . 48
k
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 48
a
5.10 Rated supply frequency of auxiliary and control circuits . 48
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 48
5.101 Rated short-circuit breaking current (I ) . 49
sc
5.102 Rated first-pole-to-clear factor (k ) for terminal fault . 52
pp
5.103 Rated short-circuit making current . 52
5.104 Rated operating sequence . 52
5.105 Rated out-of-phase making and breaking current . 52
5.106 Rated capacitive currents. 53
6 Design and construction . 55
6.1 Requirements for liquids . 55
6.2 Requirements for gases . 55
6.3 Earthing . 55
6.4 Auxiliary and control equipment and circuits . 56
6.5 Dependent power operation . 56
6.6 Stored energy operation . 56
6.7 Independent unlatched operation (independent manual or power operation) . 56
6.8 Manually operated actuators . 56
6.9 Operation of releases . 56
6.10 Pressure/level indication . 57
6.11 Nameplates. 58
6.12 Locking devices . 60
6.13 Position indication . 60
6.14 Degrees of protection provided by enclosures . 60
6.15 Creepage distances for outdoor insulators . 60
6.16 Gas and vacuum tightness . 60
6.17 Tightness for liquid systems . 60
6.18 Fire hazard (flammability) . 60
6.19 Electromagnetic compatibility (EMC) . 60
6.20 X-ray emission . 60
6.21 Corrosion . 60
6.22 Filling levels for insulation, switching and/or operation . 61
6.101 Requirements for simultaneity of poles during single closing and single
opening operations . 61
6.102 General requirement for operation . 61
6.103 Pressure limits of fluids for operation . 61
6.104 Vent outlets . 62
6.105 Time quantities . 62
6.106 Mechanical loads . 62
6.107 Circuit-breaker classification . 63
7 Type tests . 65
7.1 General . 65
7.2 Dielectric tests . 67
7.3 Radio interference voltage (RIV) test . 72
7.4 Resistance measurement . 72
7.5 Continuous current tests . 73
7.6 Short-time withstand current and peak withstand current tests . 74
7.7 Verification of the protection . 74
7.8 Tightness tests . 74
7.9 Electromagnetic compatibility tests (EMC) . 74
7.10 Additional tests on auxiliary and control circuits . 75
7.11 X-radiation test procedure for vacuum interrupters .
...
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