EN 62271-204:2011

SLOVENSKI STANDARD
01-november-2011
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High-voltage switchgear and controlgear - Part 204: Rigid high-voltage, gas-insulated
transmission lines for rated voltages of 72,5 kV and above (IEC 62271-204:2011)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 204: Starre gasisolierte
Hochspannungs-Übertragungsleitungen für Bemessungsspannungen über 52 kV (IEC
62271-204:2011)
Appareillage à haute tension - Part 204: Lignes de transport rigides haute tension à
isolation gazeuse de tension assignée égale ou supérieure à 72, 5 kV (CEI 62271-
204:2011)
Ta slovenski standard je istoveten z: EN 62271-204:2011
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 62271-204
NORME EUROPÉENNE
September 2011
EUROPÄISCHE NORM
ICS 29.130.10
English version
High-voltage switchgear and controlgear -
Part 204: Rigid gas-insulated transmission lines
for rated voltage above 52 kV
(IEC 62271-204:2011)
Appareillage à haute tension -  Hochspannungs-Schaltgeräte und -
Part 204: Lignes de transport rigides à Schaltanlagen -
isolation gazeuse de tension assignée Teil 204: Starre gasisolierte
supérieure à 52 kV Übertragungsleitungen für
(CEI 62271-204:2011) Bemessungsspannungen über 52 kV
(IEC 62271-204:2011)
This European Standard was approved by CENELEC on 2011-08-30. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62271-204:2011 E
Foreword
The text of document 17C/510/FDIS, future edition 1 of IEC 62271-204, prepared by SC 17C,
"High-voltage switchgear and controlgear assemblies", of IEC TC 17, "Switchgear and controlgear" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62271-204:2011.

The following dates are fixed:
(dop) 2012-05-30
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2014-08-30
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 62271-204:2011 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
[1] IEC 60071-1 NOTE  Harmonized as EN 60071-1.

- 3 - EN 62271-204:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60050-151 - International Electrotechnical Vocabulary - -
(IEV) -
Part 151: Electrical and magnetic devices

IEC 60050-441 1984 International Electrotechnical Vocabulary - -
(IEV) -
Chapter 441: Switchgear, controlgear and
fuses
IEC 60060-1 - High-voltage test techniques - EN 60060-1 -
Part 1: General definitions and test
requirements
IEC 60068-1 - Environmental testing - EN 60068-1 -
Part 1: General and guidance
IEC 60229 2007 Tests on cable oversheaths which have a EN 60229 2008
special protective function and are applied by
extrusion
IEC 60270 - High-voltage test techniques - Partial EN 60270 -
discharge measurements
IEC 60287-3-1 1995 Electric cables - Calculation of the current - -
rating -
Part 3: Sections on operating conditions -
Section 1: Reference operating conditions and
selection of cable type
IEC 60376 - Specification of technical grade sulfur EN 60376 -
hexafluoride (SF ) for use in electrical
equipment
IEC 60480 - Guidelines for the checking and treatment of EN 60480 -
sulphur hexafluoride (SF ) taken from
electrical equipment and specification for its
re-use
IEC 60529 1989 Degrees of protection provided by enclosures EN 60529 1991
(IP Code) + corr. May 1993
IEC 62271-1 2007 High-voltage switchgear and controlgear - EN 62271-1 2008
Part 1: Common specifications
1) 1)
IEC 62271-203 201X High-voltage switchgear and controlgear - EN 62271-203 201X
Part 203: Gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV

IEC/TR 62271-303 - High-voltage switchgear and controlgear - CLC/TR 62271-303 -
Part 303: Use and handling of sulphur
hexafluoride (SF6)
1)
To be published.
Publication Year Title EN/HD Year

ISO/IEC Guide 51 - Safety aspects - Guidelines for their inclusion - -
in standards
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.
...