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 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. The contents of the corrigendum of June 2015 have been included in this copy.

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

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. Le contenu du corrigendum de juin 2015 a été pris en considération dans cet exemplaire.

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Status
Published
Publication Date
23-Oct-2011
Technical Committee
Current Stage
DELPUB - Deleted Publication
Completion Date
27-May-2021
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IEC 62271-200:2011 - 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
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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
IEC 62271-200:2011
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
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
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 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

4.2 Rated insulation level ......................................................................................... 16

4.3 Rated frequency (f ) ............................................................................................ 16

4.4 Rated normal current and temperature rise ......................................................... 16

4.5 Rated short-time withstand currents (I ).............................................................. 16

4.6 Rated peak withstand current (I ) ....................................................................... 16

4.7 Rated durations of short circuit (t ) ..................................................................... 17

4.8 Rated supply voltage of closing and opening devices and of auxiliary and

control circuits (U ) ............................................................................................. 17

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

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

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

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

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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

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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

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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

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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;
---------------------- Page: 7 ----------------------
– 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.
The contents of the corrigendum of June 2015 have been included in this copy.

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

colour printer.
---------------------- Page: 8 ----------------------
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,

...

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