SIST EN 62271-204:2011

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)

This part of IEC 62271 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. It is intended that this international standard be used where the provisions of IEC 62271-203 do not cover the application of GIL (see NOTE 3). At each end of the HV gas-insulated transmission line, a specific element may be used for the connection between the HV gas-insulated transmission line and other equipment like bushings, power transformers or reactors, cable boxes, metal-enclosed surge arresters, voltage transformers or GIS, covered by their own specification. Unless otherwise specified, the HV gas-insulated transmission line is designed to be used under normal service conditions.

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)

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.

Visokonapetostne stikalne in krmilne narave - 204. del: Togi visokonapetostni, plinsko izolirani prenosni vodi za naznačene napetosti 72,5 kV in več (IEC 62271-204:2011)

Ta del IEC 62271 velja za toge visokonapetostne plinsko izolirane prenosne vode (GIL), pri katerih se izolacija vsaj delno doseže z nekorozivnim izolacijskim plinom, ki ni zrak, pri atmosferskem tlaku, za izmenični tok z naznačenimi napetostmi nad 52 kV in za delovne frekvence do vključno 60 Hz. Mišljeno je, da se ta mednarodni standard uporablja, kjer določbe IEC 62271-203 ne zajemajo uporabe GIL (glej OPOMBO 3). Na vsakem koncu visokonapetostnega plinsko izoliranega prenosnega voda se lahko uporabi poseben element za povezovanje med visokonapetostnim plinsko izoliranim prenosnim vodom in drugo opremo, kot so skoznjiki, močnostni transformatorji ali reaktorji, kabelske omarice, kovinsko zaprti prenapetostni odvodniki, transformatorji napetosti ali GIS, ki so zajeti v svojih specifikacijah. Razen če ni določeno drugače, se visokonapetostni plinsko izolirani prenosni vod uporablja v normalnih pogojih delovanja.

General Information

• Status: Published
• Publication Date: 12-Oct-2011
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: SKA - Switchgear and control gear
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Sep-2011
• Due Date: 04-Dec-2011
• Completion Date: 13-Oct-2011
• Ref Project: EN 62271-204:2011 - High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV

Relations

• Replaced By: SIST EN 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)
• Effective Date: 12-Jul-2022
• Revised: SIST EN 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)
• Effective Date: 17-Sep-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62271-204:2011
01-november-2011
9LVRNRQDSHWRVWQHVWLNDOQHLQNUPLOQHQDUDYHGHO7RJLYLVRNRQDSHWRVWQL
SOLQVNRL]ROLUDQLSUHQRVQLYRGL]DQD]QDþHQHQDSHWRVWLN9LQYHþ,(&

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
SIST EN 62271-204:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 62271-204:2011

---------------------- Page: 2 ----------------------

SIST EN 62271-204:2011

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

---------------------- Page: 3 ----------------------

SIST EN 62271-204:2011
EN 62271-204:2011 - 2 -
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.

---------------------- Page: 4 ----------------------

SIST EN 62271-204:2011
- 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
6
equipment


IEC 60480 - Guidelines for the checking and treatment of EN 60480 -
sulphur hexafluoride (SF ) taken from
6
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.

---------------------- Page: 5 ----------------------

SIST EN 62271-204:2011
EN 62271-204:2011 - 4 -
Publication Year Title EN/HD Year

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

---------------------- Page: 6 ----------------------

SIST EN 62271-204:2011
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

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 7 ----------------------

SIST EN 62271-204:2011
– 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

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SIST EN 62271-204:2011
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 . 31
7.102 Pressure tests of factory made enclosures . 32
8 Guide to the selection of GIL . 32
8.101 Short time overload capability . 32
8.102 Forced cooling . 32
9 Information to be given with enquiries, tenders and orders . 32
9.101 Information with enquiries and orders . 32
9.102 Information with tenders and contract documentation . 34
10 Transport, storage, installation, operation and maintenance . 35
10.1 Conditions during transport, storage and installation . 35
10.2 Installation . 35
10.3 Operation . 36
10.4 Maintenance . 40
11 Safety . 40
11.1 Precautions by manufacturers . 41
11.2 Precautions by users . 41
11.3 Electrical aspects . 41

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SIST EN 62271-204:2011
– 4 – 62271-204  IEC:2011
11.4 Mechanical aspects . 41
11.5 Thermal aspects . 41
11.101 Maintenance aspects . 41
12 Influence of the product on the environment . 42
Annex A (informative) Estimation of continuous current . 43
Annex B (informative) Earthing . 48
Annex C (normative) Long-term testing of buried installations . 52
Bibliography . 54

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 . 51

Table 1 – Second characteristic numeral of IP coding . 16

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SIST EN 62271-204:2011
62271-204  IEC:2011 – 5 –
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 in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62271-204 has been prepared by subcommittee 17C: High-voltage
switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and con-
trolgear.
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.

---------------------- Page: 11 ----------------------

SIST EN 62271-204:2011
– 6 – 62271-204  IEC:2011
The text of this standard is based on the following documents:
FDIS Report on voting
17C/510/FDIS 17C/520/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This International Standard should be read in conjunction with IEC 62271-1:2007, to which it
refers and which is applicable unless otherwise specified. In order to simplify the indication of
corresponding requirements, the same numbering of clauses and subclauses is used as in
IEC 62271-1. Amendments to these clauses and subclauses are given under the same
numbering, whilst additional subclauses, are numbered from 101. It should also be read in
1
conjunction with IEC 62271-203.
A list of all parts of the IEC 62271 series can be found, under the general title High-voltage
switchgear and controlgear, on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

___________
1
 To be published.

---------------------- Page: 12 ----------------------

SIST EN 62271-204:2011
62271-204  IEC:2011 – 7 –
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 204: Rigid gas-insulated transmission lines
for rated voltage above 52 kV



1 General
1.1 Scope
This part of IEC 62271 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 atmos-
pheric pressure, for alternating current of rated voltages above 52 kV, and for service
frequencies up to and including 60 Hz.
It is intended that this international standard be used where the provisions of IEC 62271-203 do
not cover the application of GIL (see NOTE 3).
At each end of the HV gas-insulated transmission line, a specific element may be used for the
connection between the HV gas-insulated transmission line and other equipment like bushings,
power transformers or reactors, cable boxes, metal-enclosed surge arresters, voltage
transformers or GIS, covered by their own specification.
Unless otherwise specified, the HV gas-insulated transmission line is designed to be used
under normal service conditions.
NOTE 1 In this international standard, the term "HV gas-insulated transmission line" is abbreviated to "GIL".
NOTE 2 In this international standard, the word "gas" means gas or gas mixture, as defined by the manufacturer.
NOTE 3 Examples of GIL applications are given:
– where all or part of the HV gas-insulated transmission line is directly buried; or
– where the HV gas-insulated transmission line is located, wholly or partly, in an area accessible to
public; or
– where the HV gas-insulated transmission line is long and the typical gas compartment length exceeds the
common practice of GIS technology.
1.2 Normative references
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.
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 – Part 1: General definitions and test requirements
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60229:2007, Electric cables – Tests on extruded oversheaths with a special protective
function

---------------------- Page: 13 ----------------------

SIST EN 62271-204:2011
– 8 – 62271-204  IEC:2011
IEC 60270, High-voltage test techniques – Partial discharge measurements
IEC 60287-3-1:1995, Electric cables – Calculation of the current rating – Part 3-1: Sections on
operating conditions – Reference operating conditions and selection of cable type
IEC 60376, Specification of technical grade sulfur hexafluoride (SF ) for use in electrical
6
equipment
) taken from
IEC 60480, Guidelines for the checking and treatment of sulfur hexafluoride (SF
6
electrical equipment and specification or its re-use
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 62271-1:2007, High-voltage switchgear and controlgear – Part 1: Common specifications
IEC 62271-203:2011, High-voltage switchgear and controlgear – Part 203:Gas-insulated metal-
2
enclosed switchgear for rated voltages above 52 kV
IEC 62271-303, High-voltage switchgear and controlgear – Part 303:Use and handling of
sulphur hexa
...