High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV

IEC 62271-204:2011 applies to rigid HV gas insulated transmission lines (GIL) in which the insulation is obtained, at least partly, by a non-corrosive insulating gas, other than air at atmospheric pressure, for alternating current of rated voltages above 52 kV, and for service frequencies up to and including 60 Hz. This standard cancels and replaces IEC/TS 61640:1998. It is a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- update to be in line with IEC 62271-1:2007 and 62271-203 and alignment of the voltage ratings and the test voltages;
- addition of new information for gas tightness and corrosion protection.
This publication is to be read in conjunction with IEC 62271-1:2007.

Appareillage à haute tension - Partie 204: Lignes de transport rigides à isolation gazeuse de tension assignée supérieure à 52 kV

La CEI 62271-204:2011 est applicable aux lignes de transport rigides haute tension à isolation gazeuse (LIG) dont l'isolation est réalisée, au moins partiellement, par un gaz isolant non corrosif autre que l'air à la pression atmosphérique, pour un courant alternatif de tension assignée supérieure à 52 kV, pour des fréquences de service inférieures ou égales à 60 Hz. La présente norme annule et remplace la CEI/TS 61640:1998. Elle constitue une révision technique. Par rapport à l'édition précédente, la présente édition inclut les principales modifications techniques suivantes:
- mise à jour conforme aux CEI 62271-1:2007 et 62271-203 et alignement des caractéristiques assignées de tension et des tensions d'essai;
- ajout d'informations pour l'étanchéité au gaz et la protection contre la corrosion.
Cette publication doit être lue conjointement avec la CEI 62271-1:2007.

General Information

Status
Published
Publication Date
25-Jul-2011
Technical Committee
Drafting Committee
Current Stage
DELPUB - Deleted Publication
Start Date
15-Aug-2019
Completion Date
31-May-2022
Ref Project

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IEC 62271-204 ®
Edition 1.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV

Appareillage à haute tension –
Partie 204: Lignes de transport rigides à isolation gazeuse de tension assignée
supérieure à 52 kV
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
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IEC 62271-204 ®
Edition 1.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV

Appareillage à haute tension –
Partie 204: Lignes de transport rigides à isolation gazeuse de tension assignée
supérieure à 52 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XA
ICS 29.130.10 ISBN 978-2-88912-604-0

– 2 – 62271-204  IEC:2011
CONTENTS
FOREWORD . 5
1 General . 7
1.1 Scope . 7
1.2 Normative references . 7
2 Normal and special service conditions . 8
2.101 Installation in open air . 8
2.102 Buried installation . 9
2.103 Installation in tunnel, shaft or similar situation . 9
3 Terms and definitions . 9
4 Ratings . 11
4.1 Rated voltage (U ) . 11
r
4.2 Rated insulation level . 11
4.3 Rated frequency (f ) . 11
r
4.4 Rated normal current and temperature rise . 11
4.5 Rated short-time withstand current (I ) . 12
k
4.6 Rated peak withstand current (I ) . 12
p
4.7 Rated duration of short circuit (t ) . 12
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) . 12
a
4.9 Rated supply frequency of closing and opening devices and of auxiliary
circuits . 12
4.10 Rated pressure of compressed gas supply for controlled pressure systems . 13
4.11 Rated filling levels for insulation and/or operation . 13
5 Design and construction . 13
5.1 Requirements for liquids in GIL . 13
5.2 Requirements for gases in GIL . 13
5.3 Earthing . 13
5.4 Auxiliary and control equipment . 14
5.5 Dependent power operation . 14
5.6 Stored energy operation . 14
5.7 Independent manual or power operation (independent unlatched operation) . 14
5.8 Operation of releases . 14
5.9 Low- and high-pressure interlocking and monitoring devices . 14
5.10 Nameplates . 15
5.11 Interlocking devices . 15
5.12 Position indication. 16
5.13 Degree of protection provided by enclosures . 16
5.14 Creepage distances for outdoor insulators . 16
5.15 Gas and vacuum tightness . 16
5.16 Liquid tightness . 17
5.17 Fire hazard (flammability) . 17
5.18 Electromagnetic compatibility (EMC) . 17
5.19 X-ray emission . 17
5.20 Corrosion . 17
5.101 Internal fault . 18
5.102 Enclosures . 19

62271-204  IEC:2011 – 3 –
5.103 Partitions and partitioning . 20
5.104 Sections of a GIL system . 21
5.105 Pressure relief . 21
5.106 Compensation of thermal expansion . 22
5.107 External vibration . 22
5.108 Supporting structures for non-buried GIL . 22
6 Type tests . 23
6.1 General . 23
6.2 Dielectric tests . 24
6.3 Radio interference voltage (r.i.v.) test . 26
6.4 Measurement of the resistance of circuits . 26
6.5 Temperature-rise tests. 26
6.6 Short-time withstand current and peak withstand current tests. 26
6.7 Verification of the protection . 27
6.8 Tightness tests . 27
6.9 Electromagnetic compatibility tests (EMC) . 28
6.10 Additional test on auxiliary and control circuits . 28
6.11 X-radiation test procedure for vacuum interrupters . 28
6.101 Proof tests for enclosures . 28
6.102 Destructive pressure tests . 28
6.103 Anti-corrosion tests for buried installation . 28
6.104 Special mechanical test on sliding contacts . 29
6.105 Test under conditions of arcing due to internal fault . 30
6.106 Weatherproofing test . 31
7 Routine tests . 31
7.1 Dielectric tests on the main circuits . 31
7.2 Dielectric tests on auxiliary and control circuits . 31
7.3 Measurement of the resistance of the main circuit . 31
7.4 Tightness test . 31
7.5 Design and visual checks. 31
7.101 Partial discharge measurement .
...

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