EN IEC 62271-108:2020

SLOVENSKI STANDARD
01-december-2020
Nadomešča:
SIST EN 62271-108:2006
Visokonapetostne stikalne in krmilne naprave - 108. del: Odklopniki za
visokonapetostni izmenični tok za naznačene napetosti nad 52 kV (IEC 62271-
108:2020)
High-voltage switchgear and controlgear - Part 108: High-voltage alternating current
disconnecting circuit-breakers for rated voltages above 52 kV (IEC 62271-108:2020)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 108: Hochspannungs-
Wechselstrom-Leistungsschalter mit Trennfunktion für Bemessungsspannungen größer
oder gleich 72,5 kV (IEC 62271-108:2020)
Appareillage à haute tension - Partie 108: Disjoncteurs-sectionneurs à courant alternatif
à haute tension de tensions assignées supérieures ou égales à 52 kV (IEC 62271-
108:2020)
Ta slovenski standard je istoveten z: EN IEC 62271-108:2020
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62271-108

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2020
ICS 29.130.10 Supersedes EN 62271-108:2006 and all of its
amendments and corrigenda (if any)
English Version
High-voltage switchgear and controlgear - Part 108: High-voltage
alternating current disconnecting circuit-breakers for rated
voltages above 52 kV
(IEC 62271-108:2020)
Appareillage à haute tension - Partie 108: Disjoncteurs- Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil
sectionneurs à courant alternatif à haute tension de 108: Hochspannungs-Wechselstrom-Leistungsschalter mit
tensions assignées supérieures à 52 kV Trennfunktion für Bemessungsspannungen größer 52 kV
(IEC 62271-108:2020) (IEC 62271-108:2020)
This European Standard was approved by CENELEC on 2020-08-13. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62271-108:2020 E

European foreword
The text of document 17A/1269/FDIS, future edition 2 of IEC 62271-108, prepared by SC 17A
"Switching devices" of IEC/TC 17 "High-voltage switchgear and controlgear" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 62271-108:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-05-13
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-08-13
document have to be withdrawn
This document supersedes EN 62271-108:2006 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 62271-108:2020 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications with their
corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-441 1984 International Electrotechnical Vocabulary. - -
Switchgear, controlgear and fuses
IEC 60050-614 2016 International Electrotechnical Vocabulary - - -
Part 614: Generation, transmission and
distribution of electricity - Operation
IEC 62271-1 2017 High-voltage switchgear and controlgear - EN 62271-1 2017
Part 1: Common specifications for
alternating current switchgear and
controlgear
IEC 62271-100 - High-voltage switchgear and controlgear - - -
Part 100: Alternating current circuit-
breakers
IEC 62271-102 2018 High-voltage switchgear and controlgear - EN IEC 62271-102 2018
Part 102: Alternating current disconnectors
and earthing switches
IEC 62271-108 ®
Edition 2.0 2020-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –

Part 108: High-voltage alternating current disconnecting circuit-breakers for

rated voltages above 52 kV
Appareillage à haute tension –

Partie 108: Disjoncteurs-sectionneurs à courant alternatif à haute tension

de tensions assignées supérieures à 52 kV

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-8507-7

– 2 – IEC 62271-108:2020 © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
3.1 General terms and definitions . 7
3.2 Assemblies of switchgear and controlgear . 7
3.3 Parts of assemblies . 7
3.4 Switching devices . 7
3.5 Parts of switchgear and controlgear . 7
3.6 Operational characteristics of switchgear and controlgear . 7
3.7 Characteristic quantities . 8
3.8 Index of definitions . 8
4 Normal and special service conditions . 9
5 Ratings . 9
5.1 General . 9
5.3 Rated insulation level (U , U , U ) . 9
d p s
6 Design and construction . 9
6.1 General . 9
6.11 Nameplates. 9
6.12 Locking devices . 10
6.13 Position indication . 10
6.101 Requirements for simultaneity of poles during single closing and single
opening operations . 10
6.102 Operation of disconnecting circuit-breakers . 10
6.103 Pressure limits of fluids for operation . 10
6.104 Vent outlets . 10
6.105 Time quantities . 10
6.106 Static mechanical loads . 11
6.107 Disconnecting circuit-breaker classification . 11
6.108 Requirements in respect of the isolating distance of disconnecting circuit-
breakers . 11
7 Type tests . 11
7.1 General . 11
7.2 Dielectric tests . 11
7.3 Radio interference voltage (RIV) test . 11
7.4 Resistance measurement . 11
7.5 Continuous current tests . 11
7.6 Short-time withstand current and peak withstand current tests . 12
7.7 Verification of the protection . 12
7.8 Tightness tests . 12
7.9 Electromagnetic compatibility tests (EMC) . 12
7.10 Additional tests on auxiliary and control circuits . 12
7.11 X-radiation for vacuum interrupters . 12
7.101 Mechanical and environmental tests . 12
7.102 Miscellaneous provisions for making and breaking tests . 13
7.103 General considerations for making and breaking tests . 13

IEC 62271-108:2020 © IEC 2020 – 3 –
7.104 Demonstration of arcing times . 13
7.105 Short-circuit test quantities . 13
7.106 Short-circuit test procedure . 13
7.107 Terminal fault tests . 13
7.108 Additional short-circuit tests . 13
7.109 Short-line fault tests . 13
7.110 Out-of-phase making and breaking tests . 13
7.111 Capacitive current tests . 14
7.112 Tests to verify the proper function of the position indicating device . 14
7.113 Combined function test . 14
8 Routine tests . 18
8.1 General . 18
9 Guide to the selection of disconnecting circuit-breakers (informative) . 18
10 Information to be given with enquires, tenders and orders (informative) . 18
11 Transport, storage, installation, operation instructions and maintenance. 19
...