IEC 62271-104:2015

IEC 62271-104 ®
Edition 2.0 2015-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 104: Alternating current switches for rated voltages higher than 52 kV

Appareillage à haute tension –
Partie 104: Interrupteurs à courant alternatif pour tensions assignées
supérieures à 52 kV
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.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient plus de 30 000 termes et définitions en
Spécifications techniques, Rapports techniques et autres
anglais et en français, ainsi que les termes équivalents dans
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
15 langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC Plus de 60 000 entrées terminologiques électrotechniques, en
en utilisant différents critères (numéro de référence, texte, anglais et en français, extraites des articles Termes et
comité d’études,…). Elle donne aussi des informations sur les Définitions des publications IEC parues depuis 2002. Plus
projets et les publications remplacées ou retirées. certaines entrées antérieures extraites des publications des

CE 37, 77, 86 et CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 62271-104 ®
Edition 2.0 2015-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –

Part 104: Alternating current switches for rated voltages higher than 52 kV

Appareillage à haute tension –

Partie 104: Interrupteurs à courant alternatif pour tensions assignées

supérieures à 52 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-2245-4

– 2 – IEC 62271-104:2015  IEC 2015
CONTENTS
FOREWORD . 6
1 General . 8
1.1 Scope . 8
1.2 Normative references . 9
2 Normal and special service conditions . 9
3 Terms and definitions . 9
3.1 General terms . 9
3.2 Assemblies . 9
3.3 Parts of assemblies . 9
3.4 Switching devices . 10
3.6 Operation . 11
3.7 Characteristic quantities . 11
4 Ratings . 13
4.1 Rated voltage (U ) . 13
r
4.2 Rated insulation level . 13
4.3 Rated frequency (f ) . 13
r
4.4 Rated normal current and temperature rise (I ) . 13
r
4.5 Rated short-time withstand current (I ) . 13
k
4.6 Rated peak withstand current (I ) . 13
p
4.7 Rated duration of short-circuit (t ) . 13
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) . 13
a
4.9 Rated supply frequency of closing and opening devices and of auxiliary
circuits . 13
4.10 Rated pressure of compressed gas supply for controlled pressure systems . 14
4.11 Rated filling levels for insulation and/or operation . 14
4.101 Rated earth fault breaking current . 14
4.102 Rated short-circuit making current . 14
4.103 Rated mainly active load-breaking current . 14
4.104 Rated closed-loop breaking current . 14
4.105 Rated capacitive switching currents . 14
4.105.1 Rated line-charging breaking current . 14
4.105.2 Rated cable-charging breaking current . 14
4.105.3 Rated single capacitor bank breaking current . 14
4.105.4 Rated back-to-back capacitor bank breaking current . 14
4.105.5 Single capacitor bank inrush making current . 15
4.105.6 Rated back-to-back capacitor bank inrush making current . 15
4.105.7 Rated cable and line-charging breaking current under earth fault
conditions . 15
4.106 Inductive load switching . 15
4.106.1 Shunt reactor breaking current . 15
4.106.2 Rated no-load transformer breaking current . 15
4.107 Rated mechanical terminal load . 15
4.108 Coordination of rated values for a general-purpose switch . 15
4.109 Coordination of rated values for limited-purpose and special-purpose
switches . 16

5 Design and construction . 16
5.1 Requirements for liquids in high-voltage switches . 16
5.2 Requirements for gases in high-voltage switches . 16
5.3 Earthing of high-voltage switches . 17
5.4 Auxiliary and control equipment . 17
5.5 Dependent power operation . 17
5.6 Stored energy operation . 17
5.7 Independent manual or power operation (independent unlatched operation) . 17
5.8 Operation of releases . 17
5.9 Low- and high-pressure interlocking and monitoring devices . 17
5.10 Nameplates . 17
5.11 Interlocking devices . 18
5.12 Position indication . 19
5.13 Degree of protection provided by enclosures. 19
5.14 Creepage distances for outdoor insulators . 19
5.15 Gas and vacuum tightness . 19
5.16 Liquid tightness . 19
5.17 Fire hazard (flammability) . 19
5.18 Electromagnetic compatibility (EMC) . 19
5.19 X-ray emission . 19
5.20 Corrosion . 19
5.101 Closing mechanism . 19
5.102 Mechanical strength . 19
5.103 Position of
...