SIST EN 62271-200:2012

High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-200:2011)

IEC 62271-200:2011 specifies requirements for prefabricated metal enclosed switchgear and controlgear for alternating current of rated voltages above 1 kV and up to and including 52 kV for indoor and outdoor installation, and for service frequencies up to and including 60 Hz. Enclosures may include fixed and removable components and may be filled with fluid (liquid or gas) to provide insulation. This second edition cancels and replaces the first edition, published in 2003. It is a technical revision. This second edition of IEC 62271-200 has been further updated and improved to the experience gained with the first edition of IEC 62271-200. As maintenance result, this second edition of IEC 62271-200 introduces the following significant changes:  - definitions, classifications and testing procedures are specified more precisely;   - categories LSC2A and LSC2B have been clarified and LSC2 has been assigned a separate definition;   - specific ratings related to fault level to earth (4.5 to 4.7) are introduced;  - solid insulated high-voltage parts are no longer considered as compartments on their own;  - an optional rating 'cable test voltage' and the associated requirements and type tests are introduced;  - for testing the internal arc classification, when assigned by the manufacturer, more specific guidance is provided regarding the test arrangement, room simulation and arc initiation;  - a single phase to earth ignition is also recognised for internal arc testing;  - the Annexes A and B are renumbered Annexes AA and BB.   This publication is to be read in conjunction with IEC 62271-1:2007.

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 200: Metallgekapselte Wechselstrom-Schaltanlagen für Bemessungsspannungen über 1 kV bis einschließlich 52 kV (IEC 62271-200:2011)

Appareillage à haute tension - Partie 200: Appareillage sous enveloppe métallique pour courant alternatif de tensions assignées supérieures à 1 kV et inférieures ou égales à 52 kV (CEI 62271-200:2011)

La CEI 62271:2011 spécifie les exigences pour l'appareillage préfabriqué sous enveloppe métallique pour courant alternatif, prévu pour être installé à l'intérieur et à l'extérieur, pour des tensions assignées supérieures à 1 kV et inférieures ou égales à 52 kV et pour des fréquences de service inférieures ou égales à 60 Hz. Les enveloppes peuvent contenir des composants fixes et amovibles et peuvent être remplies de fluide (liquide ou gaz) pour assurer l'isolation. Cette deuxième édition annule et remplace la première édition parue en 2003. Elle constitue une révision technique. Cette deuxième édition de la CEI 62271-200 a été mise à jour de manière plus approfondie et améliorée sur la base de l'expérience acquise avec la première édition de la CEI 62271-200. En termes de maintenance, cette deuxième édition de la CEI 62271-200 introduit les modifications majeures suivantes:  - les définitions, classifications et méthodes d'essai sont spécifiées de manière plus précise;   - les catégories LSC2A et LSC2B ont été explicitées et LSC2 a été déterminée selon une définition séparée;   - des caractéristiques assignées spécifiques relatives au niveau de défaut à la terre (4.5 à 4.7) ont été introduites;  - les parties à haute tension à isolation solide ne sont plus considérées comme des compartiments proprement dits;   - une caractéristique assignée facultative 'tension d'essai des câbles' avec ses exigences et essais de type associés a été introduite;  - s'agissant des essais de classification d'arc interne, lorsque celle-ci est assignée par le constructeur, des recommandations plus spécifiques sont fournies en matière de disposition d'essai, de simulation de local et d'amorçage d'arc;  - un amorçage en monophasé phase-terre est également reconnu pour les essais d'arc interne;   - les Annexes A et B ont été renumérotées Annexes AA et BB.   Cette publication doit être lue conjointement avec la CEI 62271-1:2007.

Visokonapetostne stikalne in krmilne naprave - 200. del: Stikalne in krmilne naprave v kovinskih ohišjih za naznačene izmenične napetosti nad 1 kV in do vključno 52 kV (IEC 62271-200:2011)

Ta del standarda IEC 62271 določa zahteve za predizdelane stikalne in krmilne naprave v kovinskih ohišjih za naznačene izmenične napetosti nad 1 kV do vključno 52 kV za notranjo ali zunanjo namestitev in za frekvence delovanja do vključno 60 Hz. Okrovi lahko zajemajo fiksne in premične dele in so lahko za izolacijo napolnjeni s tekočino (kapljevino ali plinom). OPOMBA 1 V tem dokumentu visoka napetost.

General Information

• Status: Withdrawn
• Publication Date: 17-Jan-2012
• Withdrawal Date: 04-Jul-2024
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: SKA - Switchgear and control gear
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 05-Jul-2024
• Due Date: 28-Jul-2024
• Completion Date: 05-Jul-2024
• Ref Project: EN 62271-200:2012 - High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

Relations

• Replaces: SIST EN 62271-200:2004 - High-voltage switchgear and controlgear -- Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
• Effective Date: 07-Jun-2022
• Replaced By: SIST EN IEC 62271-200:2021 - High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-200:2021)
• Effective Date: 03-Aug-2021
• Corrected By: SIST EN 62271-200:2012/AC:2015 - High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
• Effective Date: 01-Sep-2015

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2012
1DGRPHãþD
SIST EN 62271-200:2004
9LVRNRQDSHWRVWQHVWLNDOQHLQNUPLOQHQDSUDYHGHO6WLNDOQHLQNUPLOQH
QDSUDYHYNRYLQVNLKRKLãMLK]DQD]QDþHQHL]PHQLþQHQDSHWRVWLQDGN9LQGR
YNOMXþQRN9,(&
High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and
controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-
200:2011)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 200: Metallgekapselte
Wechselstrom-Schaltanlagen für Bemessungsspannungen über 1 kV bis einschließlich
52 kV (IEC 62271-200:2011)
Appareillage à haute tension - Partie 200: Appareillage sous enveloppe métallique pour
courant alternatif de tensions assignées supérieures à 1 kV et inférieures ou égales à 52
kV (CEI 62271-200:2011)
Ta slovenski standard je istoveten z: EN 62271-200:2012
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 62271-200
NORME EUROPÉENNE
January 2012
EUROPÄISCHE NORM
ICS 29.130.10 Supersedes EN 62271-200:2004

English version
High-voltage switchgear and controlgear -
Part 200: AC metal-enclosed switchgear and controlgear for rated
voltages above 1 kV and up to and including 52 kV
(IEC 62271-200:2011)
Appareillage à haute tension -  Hochspannungs-Schaltgeräte und -
Partie 200: Appareillage sous enveloppe Schaltanlagen -
métallique pour courant alternatif de Teil 200: Metallgekapselte Wechselstrom-
tensions assignées supérieures à 1 kV et Schaltanlagen für
inférieures ou égales à 52 kV Bemessungsspannungen über 1 kV bis
(CEI 62271-200:2011) einschließlich 52 kV
(IEC 62271-200:2011)
This European Standard was approved by CENELEC on 2011-11-28. 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey 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

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62271-200:2012 E
Foreword
The text of document 17C/523/FDIS, future edition 2 of IEC 62271-200, 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 62271-200:2012.

The following dates are fixed:
(dop) 2012-08-28
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2014-11-28
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 62271-200:2004.
EN 62271-200:2004. As maintenance result, EN 62271-200:2012 introduces the following significant
changes:
 definitions, classifications and testing procedures are specified more precisely;
 categories LSC2A and LSC2B have been clarified and LSC2 has been assigned a separate definition;
 specific ratings related to fault level to earth (4.5 to 4.7) are introduced;
 solid insulated high-voltage parts are no longer considered as compartments on their own;
 an optional rating "cable test voltage" and the associated requirements and type tests are introduced;
 for testing the internal arc classification, when assigned by the manufacturer, more specific guidance is
provided regarding the test arrangement, room simulation and arc initiation;
 a single phase to earth ignition is also recognised for internal arc testing;
 the Annexes A and B are renumbered Annexes AA and BB.
The level of severity of internal arc testing is maintained without changes.
This European Standard should be read in conjunction with EN 62271-1:2008, 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 EN 62271-1. Amendments to
these clauses and subclauses are given under the same numbering, whilst additional subclauses, are
numbered from 101.
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.
- 3 - EN 62271-200:2012
Endorsement notice
The text of the International Standard IEC 62271-200:2011 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 60059:1999 NOTE  Harmonized as EN 60059:1999 (not modified).
IEC 60243-1:1998 NOTE  Harmonized as EN 60243-1:1998 (not modified).
IEC 60909-0:2001 NOTE  Harmonized as EN 60909-0:2001 (not modified).
IEC 62271-203:2003 NOTE  Harmonized as EN 62271-203:2004 (not modified).
IEC/TR 62271-303:2008 NOTE  Harmonized as CLC/TR 62271-303:2009 (not modified).

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 60270 - High-voltage test techniques - Partial EN 60270 -
discharge measurements
1)
IEC 60470 1999 High-voltage alternating current contactors EN 60470 2000
and contactor-based motor starters + corr. June 2000

IEC 60529 1989 Degrees of protection provided by enclosures EN 60529 1991
(IP Code) + corr. May 1993
IEC 62262 - Degrees of protection provided by enclosures EN 62262 -
for electrical equipment against external
mechanical impacts (IK code)
IEC 62271-1 2007 High-voltage switchgear and controlgear - EN 62271-1 2008
Part 1: Common specifications
IEC 62271-100 - High-voltage switchgear and controlgear - EN 62271-100 -
Part 100: Alternating current circuit-breakers

IEC 62271-102 2001 High-voltage switchgear and controlgear - EN 62271-102 2002
+ corr. April 2002 Part 102: Alternating current disconnectors + corr. July 2008
+ corr. February 2005 and earthing switches + corr. March 2005
+ corr. May 2003
IEC 62271-103 - High-voltage switchgear and controlgear - EN 62271-103 -
Part 103: Switches for rated voltages above 1
kV up to and including 52 kV
IEC 62271-105 - High-voltage switchgear and controlgear - EN 62271-105 -
Part 105: Alternating current switch-fuse
combinations
IEC 62271-201 2006 High-voltage switchgear and controlgear - EN 62271-201 2006
Part 201: AC insulation-enclosed switchgear + corr. November 2006
and controlgear for rated voltages above 1 kV
and up to and including 52 kV
1)
EN 60470:2000 is superseded by EN 62271-106:2011, which is based on IEC 62271-106:2011.

- 5 - EN 62271-200:2012
Publication Year Title EN/HD Year

IEC/TS 62271-304 - High-voltage switchgear and controlgear - CLC/TS 62271-304 -
Part 304: Design classes for indoor enclosed
switchgear and controlgear for rated voltages
above 1 kV up to and including 52 kV to be
used in severe climatic conditions

ISO/IEC Guide 51 1999 Safety aspects - Guidelines for their inclusion - -
in standards
Annex ZB
(informative)
A-deviations
A-deviation: National deviation due to regulations, the alteration of which is for the time being outside the
competence of the CENELEC member.
This European Standard does not fall under any Directive.
In the relevant CEN/CENELEC countries these A-deviations are valid instead of the provisions of the
European Standard until they have been removed.
Clause Deviation
1 Italy (Italian pressure vessel code for electrical switchgear DM 1 December 1980 and DM
10 September 1981 published in Gazzetta Ufficiale n° 285 dated 16.10.1981)
For metal-enclosed switchgear and controlgear containing gas-filled compartments, the
design pressure is limited to a maximum of 0,5 bar (gauge) and the volume is limited to a
maximum of 2 m . Gas filled compartments having a design pressure exceeding 0,5 bar
(gauge) or a volume exceeding 2 m shall be designed according to the Italian pressure
vessel code for electrical switchgear.

IEC 62271-200 ®
Edition 2.0 2011-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 200: AC metal-enclosed switchgear and controlgear for rated voltages
above 1 kV and up to and including 52 kV

Appareillage à haute tension –
Partie 200: Appareillage sous enveloppe métallique pour courant alternatif
de tensions assignées supérieures à 1 kV et inférieures ou égales à 52 kV

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 29.130.10 ISBN 978-2-88912-743-6

– 2 – 62271-200  IEC:2011
CONTENTS
FOREWORD . 5
1 General . 7
1.1 Scope . 7
1.2 Normative references . 8
2 Normal and special service conditions . 8
3 Terms and definitions . 9
4 Ratings . 15
4.1 Rated voltage (U ) . 15
r
4.2 Rated insulation level . 16
4.3 Rated frequency (f ) . 16
r
4.4 Rated normal current and temperature rise . 16
4.5 Rated short-time withstand currents (I ). 16
k
4.6 Rated peak withstand current (I ) . 16
p
4.7 Rated durations of short circuit (t ) . 17
k
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (U ) . 17
a
4.9 Rated supply frequency of closing and opening devices and of auxiliary
circuits . 17
4.10 Rated pressure of compressed gas supply for controlled pressure systems . 17
4.11 Rated filling levels for insulation and/or operation . 17
4.101 Ratings of the internal arc classification (IAC). 17
4.102 Rated cable test voltages . 19
5 Design and construction . 19
5.1 Requirements for liquids in switchgear and controlgear . 19
5.2 Requirements for gases in switchgear and controlgear . 19
5.3 Earthing of switchgear and controlgear . 20
5.4 Auxiliary and control equipment . 21
5.5 Dependent power operation . 21
5.6 Stored energy operation . 21
5.7 Independent manual or power operation (independent unlatched operation) . 21
5.8 Operation of releases . 21
5.9 Low- and high-pressure interlocking and monitoring devices . 21
5.10 Nameplates . 21
5.11 Interlocking devices . 23
5.12 Position indication . 23
5.13 Degrees of protection by enclosures . 24
5.14 Creepage distances for outdoor insulators . 24
5.15 Gas and vacuum tightness . 24
5.16 Liquid tightness . 24
5.17 Fire hazard (flammability) . 24
5.18 Electromagnetic compatibility (EMC) . 24
5.19 X-ray emission . 24
5.20 Corrosion . 24
5.101 Internal arc fault . 25
5.102 Enclosure . 25
5.103 High-voltage compartments . 27

62271-200  IEC:2011 – 3 –
5.104 Removable parts . 30
5.105 Provisions for dielectric tests on cables . 30
6 Type tests . 31
6.1 General . 31
6.2 Dielectric tests . 32
6.3 Radio interference voltage (r.i.v.) test . 35
6.4 Measurement of the resistance of circuits . 35
6.5 Temperature-rise tests . 36
6.6 Short-time withstand current and peak withstand current tests . 37
6.7 Verification of the protection . 38
6.8 Tightness tests . 39
6.9 Electromagnetic compatibility tests (EMC) . 39
6.10 Additional tests on auxiliary and control circuits . 39
6.11 X-radiation test procedures for vacuum interrupters . 40
6.101 Verification of making and breaking capacities. 40
6.102 Mechanical operation tests . 41
6.103 Pressure withstand test for gas-filled compartments . 42
6.104 Tests to verify the protection of persons against dangerous electrical
effects . 43
6.105 Weatherproofing test . 44
6.106 Internal arc test . 44
7 Routine tests . 47
7.1 Dielectric test on the main circuit . 48
7.2 Tests on auxiliary and control circuits . 48
7.3 Measurement of the resistance of the main circuit . 48
7.4 Tightness test . 48
7.5 Design and visual checks . 48
7.101 Partial discharge measurement . 48
7.102 Mechanical operation tests . 49
7.103 Pressure tests of gas-filled compartments . 49
7.104 Tests of auxiliary electrical, pneumatic and hydraulic devices . 49
7.105 Tests after erection on site . 49
7.106 Measurement of fluid condition after filling on site . 50
8 Guide to the selection of switchgear and controlgear . 50
8.101 General . 50
8.102 Selection of rated values . 50
8.103 Selection of design and construction. 50
8.104 Internal arc fault . 55
8.105 Summary of technical requirements, ratings and optional tests . 59
8.106 Ratings of earthing circuits . 61
8.107 Ratings for cable testing . 61
9 Information to be given with enquiries, tenders and orders . 61
9.1 Information with enquiries and orders . 61
9.2 Information with tenders . 62
10 Transport, storage, installation, operation and maintenance . 63
10.1 Conditions during transport, storage and installation . 63
10.2 Installation . 63
10.3 Operation . 63

– 4 – 62271-200  IEC:2011
10.4 Maintenance . 63
11 Safety . 63
11.101 Procedures . 64
11.102 Internal arc aspects . 64
12 Influence of the product on the environment . 64
Annex AA (normative) Internal arc fault – Method to verify the internal arc
classification (IAC) . 65
Annex BB (normative) Partial discharge measurement . 80
Annex CC (informative) Regional deviations . 86
Bibliography . 87

Figure 101 – LSC1 . 54
Figure 102 – LSC2 . 54
Figure 103 – LSC2 . 54
Figure 104 – LSC2A . 54
Figure 105 – LSC2B . 54
Figure 106 – LSC2B . 54
Figure AA.1 – Mounting frame for vertical indicators . 73
Figure AA.2 – Horizontal indicator. 73
Figure AA.3 – Position of the indicators . 74
Figure AA.4 – Room simulation and indicator positioning for accessibility A, classified
rear side, functional unit of any height . 75
Figure AA.5 – Room simulation and indicator positioning for accessibility B, classified
rear side, functional unit greater than or equal to 1 900 mm high . 76
Figure AA.6 – Room simulation and indicator positioning for accessibility B, classified
rear side, functional unit less than 1 900 mm high. 77
Figure AA.7 – Test arrangement for overhead connected pole-mounted switchgear
and controlgear . 78
Figure AA.8 – Ceiling height stated from the floor or false floor level where the
switchgear is actually placed . 79
Figure BB.1 – Partial discharge test circuit (three-phase arrangement) . 84
Figure BB.2 – Partial-discharge test circuit (system without earthed neutral) . 85

Table 101 – Nameplate information . 21
Table 102 – Locations, causes and examples of measures to decrease the probability
of internal arc faults . 56
Table 103 – Single phase-to-earth arc fault current depending on the network neutral
earthing . 58
Table 104 – Summary of technical requirements, ratings and optional tests for metal-
enclosed switchgear . 59
Table AA.1 – Parameters for internal fault test according to compartment construction . 72
Table BB.1 – Test circuits and procedures . 83

62271-200  IEC:2011 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 200: AC metal-enclosed switchgear and controlgear
for rated voltages above 1 kV and up to and including 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-
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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 62271-200 has been prepared by subcommittee 17C: High-voltage
switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and
controlgear.
This second edition cancels and replaces the first edition, published in 2003. It is a technical
revision.
This second edition of IEC 62271-200 has been further updated and improved to the
experience gained with the first edition of IEC 62271-200. As maintenance result, this second
edition of IEC 62271-200 introduces the following significant changes:
• definitions, classifications and testing procedures are specified more precisely;
• categories LSC2A and LSC2B have been clarified and LSC2 has been assigned a
separate definition;
• specific ratings related to fault level to earth (4.5 to 4.7) are introduced;

– 6 – 62271-200  IEC:2011
• solid insulated high-voltage parts are no longer considered as compartments on their own;
• an optional rating "cable test voltage" and the associated requirements and type tests are
introduced;
• for testing the internal arc classification, when assigned by the manufacturer, more
specific guidance is provided regarding the test arrangement, room simulation and arc
initiation;
• a single phase to earth ignition is also recognised for internal arc testing;
• the Annexes A and B are renumbered Annexes AA and BB.
The level of severity of internal arc testing is maintained without changes.
The text of this standard is based on the following documents:
FDIS Report on voting
17C/523/FDIS 17C/534/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.
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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
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62271-200  IEC:2011 – 7 –
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 200: AC metal-enclosed switchgear and controlgear
for rated voltages above 1 kV and up to and including 52 kV

1 General
1.1 Scope
This part of IEC 62271 specifies requirements for prefabricated metal-enclosed switchgear
and controlgear for alternating current of rated voltages above 1 kV and up to and including
52 kV for indoor and outdoor installation, and for service frequencies up to and including
60 Hz. Enclosures may include fixed and removable components and may be filled with fluid
(liquid or gas) to provide insulation.
NOTE 1 For the use of this document high-voltage (IEC 60050-601:1985, 601-01-27) is the rated voltage above
1 000 V. However, medium voltage (IEC 60050-601:1985, 601-01-28) is commonly used for distribution systems
with voltages above 1 kV and generally applied up to and including 52 kV; refer to [1] of Bibliography
NOTE 2 Although primarily dedicated to three-phase systems, this standard can also be applied to single-phase
or two-phase systems.
This standard defines several categories of metal enclosed switchgear and controlgear which
differ due to
– the consequences on network service continuity in case of maintenance on the switchgear
and controlgear;
– the need and convenience of maintenance of the equipment.
NOTE 3 Safety of an installation results from the design, implementation and coordination of products,
installations and operations.
For metal-enclosed switchgear and controlgear containing gas-filled compartments, the
design pressure is limited to a maximum of 300 kPa (relative pressure).
NOTE 4 Gas-filled compartments having a design pressure exceeding 300 kPa (relative pressure) should be
designed and tested in accordance with IEC 62271-203; refer to [6] of Bibliography.
Metal-enclosed switchgear and controlgear for special use, for example, in flammable
atmospheres, in mines or on board ships, may be subject to additional requirements.
Components contained in metal-enclosed switchgear and controlgear are to be designed and
tested in accordance with their various relevant standards. This standard supplements the
standards for the individual components regarding their installation in switchgear and
controlgear assemblies.
This standard does not preclude that other equipment may be included in the same enclosure.
In such a case, any possible influence of that equipment on the switchgear and controlgear is
to be taken into account.
NOTE 5 Switchgear and controlgear assemblies having an insulation enclosure are covered by IEC 62271-201.
NOTE 6 Metal-enclosed switchgear and controlgear for rated voltages above 52 kV insulated by ambient air may
be covered by this standard taking into account the insulation levels of IEC 62271-1.

– 8 – 62271-200  IEC:2011
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 – Part 151: Electrical and magnetic
devices
IEC 60050-441:1984, International Electrotechnical Vocabulary – Chapter 441: Switchgear,
controlgear and fuses
IEC 60060-1, High-voltage test techniques – Part 1: General definitions and test requirements
IEC 60270, High-voltage test techniques – Partial discharge measurements
IEC 60470:1999, High-voltage alternating current contactors and contactor-based motor-
starters
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 62262, Degrees of protection provided by enclosures for electrical equipment against
external mechanical impacts (IK code)
IEC 62271-1:2007, High-voltage switchgear and controlgear – Part 1: Common specifications
IEC 62271-100, High-voltage switchgear and controlgear – Part 100: Alternating-current
circuit-breakers
IEC 62271-102:2001, High-voltage switchgear and controlgear – Part 102: Alternating current
disconnectors and earthing switches
IEC 62271-103, High-voltage switchgear and controlgear – Part 103: Switches for rated
voltages above 1 kV up to and including 52 kV
IEC 62271-105, High-voltage switchgear and controlgear – Part 105: Alternating current
switch-fuse combinations
IEC 62271-201:2006, High-voltage switchgear and controlgear – Part 201: AC insulation-
enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including
52 kV
IEC/TS 62271-304, High-voltage switchgear and controlgear – Part 304: Design classes for
indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including
52 kV to be used in severe climatic conditions
ISO/IEC Guide 51:1999, Safety aspects – Guidelines for their inclusion in standards
2 Normal and special service conditions
Clause 2 of IEC 62271-1 is applicable with the following addition:
Unless otherwise specified in this standard, the metal-enclosed switchgear and controlgear is
designed to be used under normal service conditions.
Metal-enclosed switchgear and controlgear, under the scope of IEC/TS 62271-304 and
intended to be used in service conditions more severe with respect to condensation and
pollution than the normal service conditions specified in this standard, may be classified with
a "design class" 1 or 2 according to IEC/TS 62271-304 to demonstrate its ability to withstand
such severe conditions.
62271-200  IEC:2011 – 9 –
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-151,
IEC 60050-441 and IEC 62271-1 as well as the following apply.
NOTE Additional definitions are classified so as to be aligned with the classification system used in IEC 60050-
441.
3.101
switchgear and controlgear
general term covering switching devices and their combination with associated control,
measuring, protective and regulating equipment, also assemblies of such devices and
equipment with associated interconnections, accessories, enclosures and supporting
structures
[IEC 60050-441:1984, 441-11-01]
3.102
metal-enclosed switchgear and controlgear
switchgear and controlgear assemblies with an external metal enclosure intended to be
earthed and completely assembled, except for external connections
[IEC 60050-441:1984, 441-12-04, modified]
3.103
functional unit
part of metal-enclosed switchgear and controlgear comprising all the components of the
main circuits and auxiliary circuits that contribute to the fulfilment of a single function
[IEC 60050-441:1984, 441-13-04, modified]
NOTE Functional units may be distinguished according to the function for which they are intended, for example,
incoming unit, outgoing unit, etc.
3.104
multi-tier design
design of metal-enclosed switchgear in which the main switching devices of two or more
functional units are arranged vertically (one above the other) within a common enclosure
3.105
transport unit
part of metal-enclosed switchgear and controlgear, prefabricated, and suitable for shipment
without being dismantled
3.106
enclosure
part of metal-enclosed switchgear and controlgear providing a specified degree of protection
of equipment against external influences and a specified degree of protection against
approach to or contact with live parts and against contact with moving parts
[IEC 60050-441:1984, 441-13-01 modified]
3.107
high-voltage compartment
compartment of metal-enclosed switchgear and controlgear containing high-voltage
conducting parts, enclosed except for openings necessary for interconnection, control or
ventilation. Four types of high-voltage compartments are distinguished, three that can be
opened, called accessible (see 3.107.1 to 3.107.3) and one that cannot be opened, called
non-accessible (see 3.107.4)
– 10 – 62271-200  IEC:2011
NOTE 1 General definition of "compartment" is provided by IEC 60050-441:1984, 441-13-05, as "a part of an
assembly enclosed except for openings necessary for interconnection, control or ventilation".
NOTE 2 A compartment may contain barriers, structures or components that are intended to provide various
functions, such as mechanical or dielectrical, but not to function as a partition or enclosure.
NOTE 3 High-voltage compartments are identified according to the main component(s) contained therein or to the
main function provided (refer to 5.103.1).
3.107.1
interlock-controlled accessible compartment
high-voltage compartment, intended to be opened for normal operation and/or normal
maintenance as stated by the manufacturer, in which access is controlled by integral design
of the switchgear and controlgear
NOTE Installation, extension, repair, etc. are not considered as normal maintenance.
3.107.2
procedure-based accessible compartment
high-voltage compartment, intended to be opened for normal operation and/or normal
maintenance as stated by the manufacturer, in which access is controlled by a suitable
procedure combined with locking
NOTE Installation, extension, repair, etc. are not considered as normal maintenance.
3.107.3
tool-based accessible compartment
high-voltage compartment, that may be opened only through the use of tools, but not intended
for opening during normal operation and maintenance
NOTE Special procedures are required.
3.107.4
non-accessible compartment
high-voltage compartment that must not be opened
NOTE Opening may destroy the integrity of the compartment.
3.107.5
connection compartment
high-voltage compartment in which electrical connections are made between the main circuit
of the switchgear assembly and the external conductors (cables or bars) to the electrical
network or high-voltage apparatus of the installation
3.108
partition
part of metal-enclosed switchgear and controlgear separating one high-voltage compartment
from other compartments and providing a specified degree of protection
[IEC 60050-441:1984, 441-13-06, modified]
NOTE 1 Movable shutters intended for shielding may become an integral part of the partition.
NOTE 2 Partitions may be fitted with parts that allow interconnection between compartments (e.g. bushings).
3.109
partition class
class defining whether metallic or non-metallic material is used for partitions

62271-200  IEC:2011 – 11 –
3.109.1
partition class PM
metal-enclosed switchgear and controlgear providing continuous metallic partitions and
...