IS/IEC 62271-1: High-Voltage Switchgear and Controlgear, Part 1: Common Specifications

2007·1.6 MB·English

by  Bureau of Indian Standards

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IS/IEC 62271-1 (2007): High-Voltage Switchgear and
Controlgear, Part 1: Common Specifications [ETD 8: High
Voltage Switchgear and Controlgear]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
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“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
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IS/IEC 62271-1 : 2007
(Superseding IS 12729 : 2004/IEC 60694 : 1996)
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Indian Standard
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
PART 1 COMMON SPECIFICATIONS
ICS 29.130.10; 29.130.99
© BIS 2012
B U R E A U O F I N D I A N S T A N D A R D S
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
November 2012 Price Group 20

IS/IEC 62271-1 : 2007
CONTENTS
NATIONAL FOREWORD.........................................................................................................v

1 General ............................................................................................................................1
1.1 Scope......................................................................................................................1
1.2 Normative re ferences ..............................................................................................1
2 Normal and special service conditions..............................................................................5
2.1 Normal service conditions .......................................................................................6
2.2 Special se rvice conditions .......................................................................................7
3 Terms and definitions .......................................................................................................9
3.1 General terms .........................................................................................................9
3.2 Assemblies of switchgear and controlgear............................................................. 12
3.3 Parts of assemblies............................................................................................... 12
3.4 Switching devices..................................................................................................13
3.5 Parts of switchgear and co ntrolgear ......................................................................13
3.6 Operation ..............................................................................................................19
3.7 Characte ristic quantities........................................................................................ 22
3.8 Index of definitions ................................................................................................23
4 Ratings...........................................................................................................................25
4.1 Rated voltage ( Ur).................................................................................................26
4.2 Rated insulation level............................................................................................26
4.3 Rated frequency (fr) ..............................................................................................31
4.4 Rated normal current and temp erature rise............................................................ 31
4.5 Rated short-time withstand current (Ik)..................................................................33
4.6 Rated peak withstand current (Ip)..........................................................................33
4.7 Rated duration of short circuit (tk) .........................................................................34
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits (Ua) ...............................................................................................34
4.9 Rated supply frequency of closing and opening devices and of auxiliary
circuits ..................................................................................................................36
4.10 Rated pressure of compressed gas supply for controlled pressure systems...........36
4.11 Rated filling levels for insulation and/or operation..................................................36
5 Design and construction .................................................................................................36
5.1 Requirements for liquids in switchgear and controlg ear .........................................36
5.2 Requirements for gases in switch gear and controlgear..........................................36
5.3 Earthing of switchgear and controlgear..................................................................37
5.4 Auxiliary and control equipment.............................................................................37
5.5 Dependent power operation...................................................................................43
5.6 Stored energy operation........................................................................................43
5.7 Independent manual or power operation (ind ependent unlatched operatio n)..........44
5.8 Operation of releases............................................................................................44
5.9 Low- and high-pressure interlocking and mo nitoring devices .................................45
5.10 Nameplates...........................................................................................................45
5.11 Interlocking devices...............................................................................................46
5.12 Position indication .................................................................................................46

5.13 Degrees of protection provided by enclosures .......................................................47
5.14 Creepage distan ces for outdoor insulators.............................................................48
5.15 Gas and vacuum tigh tness ....................................................................................49
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IS/IEC 62271-1 : 2007
5.16 Liquid tightness .....................................................................................................49
5.17 Fire hazard (f lammability)......................................................................................50
5.18 Electromagnetic compatibility (EMC) .....................................................................50
5.19 X-ray emission ......................................................................................................50
5.20 Corrosion ..............................................................................................................51
6 Type tests ......................................................................................................................51
6.1 General................................................................................................................. 51
6.2 Dielectric tests ......................................................................................................53
6.3 Radio interference voltage (r.i.v.) test.................................................................... 60
6.4 Measurement of the resistance of circuits.............................................................. 60
6.5 Temperature-rise tests ..........................................................................................61
6.6 Short-time with stand current and peak withstand current tests ..............................64
6.7 Verification of the protection..................................................................................66
6.8 Tightness tests......................................................................................................67
6.9 Electromagnetic compatibility tests (EMC).............................................................69
6.10 Additional tests on auxiliary and contro l circuits ....................................................75
6.11 X-radiation test procedu re for vacuum interrupters ................................................79
7 Routine tests ..................................................................................................................81
7.1 Dielectric te st on the main circuit........................................................................... 81
7.2 Tests on auxiliary and control circuits.................................................................... 81
7.3 Measurement of the resistance of the main circuit .................................................82
7.4 Tightness test........................................................................................................82
7.5 Design and visual checks ......................................................................................83
8 Guide to the sele ction of switchgear and controlgea r......................................................83
8.1 Selection of rated values .......................................................................................84
8.2 Continuous or temporary overload due to changed service conditions ...................84
9 Information to be given with enquiries, tenders and orders .............................................85
9.1 Information with enquiries and orders ....................................................................86
9.2 Information with tenders ........................................................................................86
10 Transport, storage, installation , operation and ma intenance ...........................................87
10.1 Conditions during transport, storage and installation .............................................87
10.2 Installation ............................................................................................................87
10.3 Operation ..............................................................................................................89
10.4 Maintenance..........................................................................................................89
11 Safety.............................................................................................................................92
11.1 Precautions by manufactu rers ...............................................................................93
11.2 Precautions by users.............................................................................................93
11.3 Electrical aspects ..................................................................................................93
11.4 Mechanical aspects...............................................................................................94
11.5 Thermal aspe cts....................................................................................................94
11.6 Operation aspe cts .................................................................................................94
12 Influence of the product on the environ ment ...................................................................94

Annex A (normative) Iden tification of test specimens ...........................................................95
Annex B (normative) Determination of the equivalent r.m.s. value of a short-time
current during a short circuit of a given du r ation ...................................................................97
Annex C (normative) Method for the weatherproofing test for outdoor switchgear and
controlgear ...........................................................................................................................98
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IS/IEC 62271-1 : 2007
Annex D (normative) Requirements for auxiliary and control circuit co mponents................101
Annex E (informa tive) Tightness (information, example and guidance)...............................103
Annex F (normative) Tolerances on test quantities during tests .........................................105
Annex G (informative) Information and technical requirements to be given with
enquiries, tenders and orders .............................................................................................108
Annex H (informative) Corrosion: Information regarding service conditions and
recommended test requirements.........................................................................................111
Annex I (informa tive) List of symbols and abbreviations used in IEC 62271-1 ....................112
Annex J (informa tive) Electromagnetic compatibility on site ...............................................114
Annex K (informa tive) List of notes concerning certain countries........................................115

Bibliography................................................................................................................... .....116

Figure 1 – Altitude co rrection fa ctor ........................................................................................8
Figure 2 – Examples of classes of contacts ..........................................................................42
Figure 3 – Diagram of connections of a three-pole switching device......................................56
Figure 4 – Diagram of a test circuit for the radio interferen ce voltage test.............................71
Figure 5 – Test location of radiation meter............................................................................81
Figure B.1 – Determination of short-time current..................................................................97
Figure C.1 – Arrangement for weatherp roofing te st..............................................................99
Figure C.2 – Nozzle for weatherproofing test ......................................................................101
Figure E.1 – Example of a tightness coordination chart, TC, for closed pressure
systems ..............................................................................................................................103
Figure E.2 – Sensitivity and applicability of different leak-detection methods for
tightness tests ....................................................................................................................104

Table 1a – Rated in sulation levels for rated voltages of range I, series I...............................27
Table 1b – Rated insulation levels for rated voltages of range I, series II (based on
current practice in some areas, including North America) a....................................................28
Table 2a – Rated in sulation levels for rated voltages of range II ...........................................29
Table 2b – Additional rated insulation levels, based on current practice in some areas,
including North America for range II......................................................................................30
Table 3 – Limits of temperature and temperature rise for various parts, materials and
dielectrics of high-voltage sw itchgear and controlgear ..........................................................31
Table 4 – Direct current voltage............................................................................................34
Table 5 – Alternating current voltage ....................................................................................35
Table 6 – Auxiliary contact cl asses .......................................................................................41
Table 7 – Degrees of protection............................................................................................48
Table 8 – Example of grouping .............................................................................................51
Table 9 – Test conditions in general case .............................................................................55
Table 10 – Power-frequen cy test conditions..........................................................................56
Table 11 – Impulse test co nditions........................................................................................57
Table 12 – Test conditions for the alternative me thod ...........................................................58

Table 13 – Permissible te mporary leakage rates for gas systems .........................................68
Table 14 – Application of voltages at the fast transient/bu rst test..........................................73
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IS/IEC 62271-1 : 2007
Table 15 – Application of voltage at the damped oscillatory wave test ..................................74
Table 16 – Assessment criteria fo r transient disturbance immunity .......................................74
Table D.1 – List of referenc e documents for auxiliary and control ci rcuit components .........101
Table F.1 – To lerances on test quantities for type test ........................................................ 106

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IS/IEC 62271-1 : 2007
High-Voltage Switchgear and Controlgear Sectional Committee, ETD 08
NATIONAL FOREWORD
This Indian Standard (Part 1) which is identical with IEC 62271-1 : 2007 ‘High-voltage switchgear and
controlgear — Part 1: Common specifications’ issued by the International Electrotechnical Commission
(IEC) was adopted by the Bureau of Indian Standards on the recommendation of the High-Voltage
Switchgear and Controlgear Sectional Committee and approval of the Electrotechnical Division Council.
The text of IEC Standard has been approved as suitable for publication as an Indian Standard without
deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention
is particularly drawn to the following:
a) Wherever the words ‘International Standard’ appear referring to this standard, they should be
read as ‘Indian Standard’.
b) Comma (,) has been used as a decimal marker, while in Indian Standards the current practice
is to use a point (.) as the decimal marker.
This standard supersedes IS 12729 : 2004/IEC 60694 : 1996 ‘Common specification for high-voltage
switchgear and controlgear standards (first revision)’.
In this adopted standard, references appear to certain International Standards for which Indian
Standards also exist. The corresponding Indian Standards, which are to be substituted in their
respective places, are listed below along with their degree of equivalence for the editions indicated:
International Standard Corresponding Indian Standard Degree of Equivalence
IEC 60034-1 Rotating electrical IS/IEC 60034 (Part 1) : 2004 Rotating Identical to
machines — Part 1: Rating and electrical machines: Part 1 Rating IEC 60034 (Part 1) : 2004
performance and performance
IEC 60038 : 1983 IEC standard IS 12360 : 1988 Voltage bands for Technically Equivalent
voltages electrical installations including
preferred voltages and frequency
IEC 60050-151 : 2001 International IS 1885 (Part 74) : 1993 Identical to
Electrotechnical Vocabulary (IEV) — Electrotechnical vocabulary: Part 74 IEC 60050-151 : 1978
Part 151: Electrical and magnetic Electrical and magnetic devices
devices
IEC 60050-191 International IS 1885 (Part 39) : 1999 Technically Equivalent
Electrotechnical Vocabulary (IEV) — Electrotechnical vocabulary: Part 39
Chapter 191: Dependability and Dependability of electronic and
quality of service electrical items
IEC 60050-351 International IS 1885 (Part 75) : 1993 Identical to
Electrotechnical Vocabulary (IEV) — Electrotechnical vocabulary: Part 75 IEC 60050-351 : 1975
Part 351: Control technology Automatic control
IEC 60050-441 : 1984 International IS 1885 (Part 17) : 1979 Technically Equivalent
Electrotechnical Vocabulary (IEV) — Electrotechnical vocabulary: Part 17
Chapter 441: Switchgear, Switchgear and controlgear (first
controlgear and fuses revision)
IEC 60050-446 International IS 1885 (Part 9) : 1992 Identical to
Electrotechnical Vocabulary (IEV) — Electrotechnical vocabulary: Part 9 IEC 60050-446 : 1983
Chapter 446: Electrical relays Electrical relays (second revision)
IEC 60050-551 International IS 1885 (Part 27) : 2008 Technically Equivalent
Electrotechnical Vocabulary (IEV) — Electrot echnical vocabulary: Part 27
Power electronics Power electronics (third revision)
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