EN IEC 62271-204:2022

SLOVENSKI STANDARD
01-oktober-2022
Nadomešča:
SIST EN 62271-204:2011
Visokonapetostne stikalne in krmilne narave - 204. del: Togi plinsko izolirani
prenosni vodi za naznačene napetosti nad 52 kV (IEC 62271-204:2022)
High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission
lines for rated voltage above 52 kV (IEC 62271-204:2022)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 204: Starre gasisolierte
Übertragungsleitungen für Bemessungsspannungen über 52 kV (IEC 62271-204:2022)
Appareillage à haute tension - Partie 204: Lignes de transport rigides à isolation gazeuse
de tension assignée supérieure à 52 kV (IEC 62271-204:2022)
Ta slovenski standard je istoveten z: EN IEC 62271-204:2022
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 62271-204

NORME EUROPÉENNE
EUROPÄISCHE NORM July 2022
ICS 29.130.10 Supersedes EN 62271-204:2011
English Version
High-voltage switchgear and controlgear - Part 204: Rigid gas-
insulated transmission lines for rated voltage above 52 kV
(IEC 62271-204:2022)
Appareillage à haute tension - Partie 204: Lignes de Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil
transport rigides à isolation gazeuse de tension assignée 204: Starre gasisolierte Übertragungsleitungen für
supérieure à 52 kV Bemessungsspannungen über 52 kV
(IEC 62271-204:2022) (IEC 62271-204:2022)
This European Standard was approved by CENELEC on 2022-07-05. 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62271-204:2022 E

European foreword
The text of document 17C/840/FDIS, future edition 2 of IEC 62271-204, prepared by SC 17C
"Assemblies" of IEC/TC 17 "High-voltage switchgear and controlgear" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 62271-204:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-04-05
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-07-05
document have to be withdrawn
This document supersedes EN 62271-204:2011 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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62271-204:2022 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60071-1 NOTE Harmonized as EN IEC 60071-1
ISO 5817 NOTE Harmonized as EN ISO 5817
ISO 6520 (series) NOTE Harmonized as EN ISO 6520 (series)
ISO 10042 NOTE Harmonized as EN ISO 10042
ISO 10675-1 NOTE Harmonized as EN ISO 10675-1
ISO 10675-2 NOTE Harmonized as EN ISO 10675-2
ISO 10893-8 NOTE Harmonized as EN ISO 10893-8
ISO 10893-9 NOTE Harmonized as EN ISO 10893-9
ISO 10893-10 NOTE Harmonized as EN ISO 10893-10
ISO 10893-11 NOTE Harmonized as EN ISO 10893-11
ISO 11666 NOTE Harmonized as EN ISO 11666
ISO 17640 NOTE Harmonized as EN ISO 17640
IEC 60270 NOTE Harmonized as EN 60270
ISO 22825 NOTE Harmonized as EN ISO 22825
ISO 23279 NOTE Harmonized as EN ISO 23279
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 60060-1 2010 High-voltage test techniques - Part 1: EN 60060-1 2010
General definitions and test requirements
IEC 60068-1 2013 Environmental testing - Part 1: General EN 60068-1 2014
and guidance
IEC 60229 2007 Electric cables - Tests on extruded EN 60229 2008
oversheaths with a special protective
function
IEC 60287-3-1 2017 Electric cables - Calculation of the current - -
rating - Part 3-1: Operating conditions -
Site reference conditions
IEC 60376 - Specification of technical grade sulfur EN IEC 60376 -
hexafluoride (SF ) and complementary
gases to be used in its mixtures for use in
electrical equipment
IEC 60480 - Specifications for the re-use of sulphur EN IEC 60480 -
hexafluoride (SF ) and its mixtures in
electrical equipment
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- -  + corrigendum May 1993
+ A1 1999  + A1 2000
+ A2 2013  +A2 2013
+AC 2016-12
+AC 2019-02
IEC 62271-1 2017 High-voltage switchgear and controlgear - EN 62271-1 2017
Part 1: Common specifications for
alternating current switchgear and
controlgear
IEC 62271-4 2013 High-voltage switchgear and controlgear - EN 62271-4 2013
Part 4: Handling procedures for sulphur
hexafluoride (SF6) and its mixtures
IEC 62271-203 2022 High-voltage switchgear and controlgear - - -
Part 203: AC gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV
ISO 9606 series Qualification test of welders - Fusion EN ISO 9606 series
welding
ISO 9712 - Non-destructive testing - Qualification and EN ISO 9712 -
certification of NDT personnel
ISO 14732 - Welding personnel - Qualification testing of EN ISO 14732 -
welding operators and weld setters for
mechanized and automatic welding of
metallic materials
ISO 15609 series Specification and qualification of welding EN ISO 15609 series
procedures for metallic materials - Welding
procedure specification
ISO 15614 series Specification and qualification of welding EN ISO 15614 series
procedures for metallic materials - Welding
procedure test
IEC 62271-204 ®
Edition 2.0 2022-05
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
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-3804-2
– 2 – IEC 62271-204:2022 © IEC 2022
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Normal and special service conditions . 8
5 Ratings . 9
6 Design and construction . 10
7 Type tests . 21
8 Routine tests . 28
9 Guide to the selection of GIL (informative) . 29
10 Information to be given with enquiries, tenders and orders (informative) . 30
11 Transport, storage, installation, operating instructions and maintenance. 32
12 Safety . 38
13 Influence of the product on the environment . 39
Annex A (informative) Estimation of continuous current . 40
Annex B (informative) Earthing . 45
Annex C (informative) Long-term testing of buried installations . 49
Annex D (normative) Requirements for welds on pressurized parts . 51
Bibliography . 53

Figure B.1 – Example of earthing system together with active anti-corrosion system in
the case of solid bonding of the enclosure at both ends . 48

Table 1 – Second characteristic numeral of IP coding . 14
Table D.1 – Quantity of NDTs . 51
Table D.2 – Acceptance criteria of imperfections . 52

IEC 62271-204:2022 © IEC 2022 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 204: Rigid gas-insulated transmission lines
for rated voltage above 52 kV
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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consensus of opinion on the relevant subjects since each technical committee has representation from all
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