High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear

IEC 62271-1:2017 applies to AC switchgear and controlgear designed for indoor and/or outdoor installation and for operation at service frequencies up to and including 60 Hz and having rated voltages above 1 000 V.
This document applies to all high-voltage switchgear and controlgear except as otherwise specified in the relevant IEC standards for the particular type of switchgear and controlgear.
This second edition cancels and replaces the first edition published in 2007 and Amendment 1:2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
New numbering in accordance with ISO/IEC directives, Part 2 (2016) and IEEE Std. C37.100.1.
4.1.2 a) The normal service condition for indoor switchgear is limited to one range of 40 °C to -5 °C.
4.1.3 a) The normal service condition for outdoor switchgear is limited to one range of 40 °C to -25 °C.
4.2.2: The specifications from IEC 60071-2:1996 are adopted for altitude correction factors above 1 000 m.
5.2.2: Range I, the rated voltage of 40,5 kV is added Series I Table 1; Table 2 and Table 4 are updated on recommendation of the US National Committee.
6.8: New subclause added for manual operated actuators consistent with “Man Machine Interface” recommendations of IEC 60447 .
7.2.6.1:Insert the wording regarding preliminary impulses across open vacuum interrupters according to the result of IEC 17/1026/RQ.
7.3: Changed the requirement for radio interference voltage to a rated voltage level of 245 kV and above, instead of 123 kV and above. This change is based on reported positive test and service experience of utility representatives in the maintenance team of this standard.
7.5.6, Table 14:
a. Introduced the distinction of parts in “OG” (oxidizing gas) or in “NOG” (not oxidizing gas) replacing the former “air” and “SF6”;
b. Increased the allowable temperature rise for some parts in groups 1 and 2 of Table 14 according to IEC TR 60943;
c. Expanded the definition of allowable temperature rise for categories of accessible surfaces with reference to IEC Guide 117. See also Point 15 in 7.5.6.2.
7.5.6.2: Point 5 is modified to clarify the introduction of “OG” and “NOG” gas.
7.10: Some tests were removed because the relevant test standards of IEC 60068 series were modified or withdrawn.
7.11.3: The acceptance criteria for X-radiation testing are modified to recognize higher rated vacuum interrupters.
Former informative Annex H: Corrosion is deleted, the content is part of
IEC TR 62271-306.
New Annex J (informative): Added informative guidelines for the extension of validity of type tests
New Annex K (informative): Added informative guidelines about exposure to pollution

Appareillage à haute tension - Partie 1: Spécifications communes pour appareillage à courant alternatif

L’IEC 62271:2017 s'applique à l'appareillage à courant alternatif prévu pour être installé à l'intérieur et/ou à l'extérieur et pour fonctionner à des fréquences de service inférieures ou égales à 60 Hz, et ayant des tensions assignées supérieures à 1 000 V.
Ce document s'applique à tout l'appareillage à haute tension, sauf spécification contraire dans les normes particulières de l’IEC pour le type d'appareillage considéré.
Cette deuxième édition annule et remplace la première édition parue en 2007 et l'Amendement 1:2011. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
Nouvelle numérotation conformément aux Directives ISO/IEC, Partie 2 (2016) et à l’IEEE Std. C37.100.1.
4.1.2 a): Limitation des conditions normales de service de l’appareillage pour l’intérieur à une plage de 40 °C à –5 °C.
4.1.3 a): Limitation des conditions normales de service de l’appareillage pour l’extérieur à une plage de 40 °C à –25 °C.
4.2.2: Adoption des spécifications de l’IEC 60071-2:1996 pour les facteurs de correction de l’altitude supérieure à 1 000 m.
5.2.2: Plage I, ajout de la tension assignée de 40,5 kV au Tableau 1 Série I; mise à jour du Tableau 2 et du Tableau 4 sur recommandation du comité national US.
6.8: Ajout d’un nouveau paragraphe pour les organes de commande à manœuvre manuelle conformes aux recommandations relatives à l’Interface Homme-Machine de l’IEC 60447.
7.2.6.1: Insertion du libellé concernant les impulsions préliminaires dans les ampoules à vide ouvertes selon le résultat de l’IEC 17/1026/RQ.
7.3: Modification de l’exigence relative à la tension de perturbation radioélectrique à une tension assignée supérieure ou égale à 245 kV, au lieu d’une tension assignée supérieure ou égale à 123 kV. Cette modification est basée sur des essais et retours d’expérience positifs rapportés par les représentants des utilités membres de l’équipe de maintenance de la présente norme.
7.5.6, Tableau 14:
a. Introduction de la distinction des parties dans les "OG" (gaz oxydants) et dans les "NOG" (gaz non oxydants) qui remplacent ici les termes "air" et "SF6" de l’édition précédente.
b. Augmentation de l’échauffement admissible pour certaines parties des groupes 1 et 2 du Tableau 14 selon l’IEC TR 60943;
c. Extension de la définition de l’échauffement admissible pour des catégories de surfaces accessibles en référence au Guide IEC 117. Voir également le point 15 de 7.5.6.2.
7.5.6.2: Modification du Point 5 pour clarifier l’introduction des gaz ‘’OG’’ et ‘’NOG’’.
7.10: Suppression de certains essais du fait de la modification ou suppression des normes d’essais correspondantes de la série IEC 60068.
7.11.3: Modification des critères d’acceptation des essais de rayonnements X pour prendre en compte les ampoules à vide de tension assignée supérieure.
Ancienne Annexe H informative: Le contenu concernant la corrosion est supprimé car il fait partie de l’IEC TR 62271-306.
Nouvelle Annexe J (informative): Ajout de lignes directrices informatives relatives à l’extension de la validité des essais de type.
Nouvelle Annexe K (informative): Ajout de lignes directrices informatives relatives à l’exposition à la pollution.

General Information

Status
Published
Publication Date
11-Jul-2017
Current Stage
PPUB - Publication issued
Start Date
12-Jul-2017
Completion Date
12-Jul-2017
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IEC 62271-1
Edition 2.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 1: Common specifications for alternating current switchgear and
controlgear
Appareillage à haute tension –
Partie 1: Spécifications communes pour appareillage à courant alternatif
IEC 62271-1:2017-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62271-1
Edition 2.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 1: Common specifications for alternating current switchgear and
controlgear
Appareillage à haute tension –
Partie 1: Spécifications communes pour appareillage à courant alternatif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-4353-4

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62271-1:2017  IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 8

INTRODUCTION ................................................................................................................... 11

1 Scope ............................................................................................................................ 12

2 Normative references .................................................................................................... 12

3 Terms and definitions .................................................................................................... 14

3.1 General terms and definitions ............................................................................... 15

3.2 Assemblies of switchgear and controlgear ............................................................ 18

3.3 Parts of assemblies .............................................................................................. 18

3.4 Switching devices ................................................................................................. 18

3.5 Parts of switchgear and controlgear ...................................................................... 18

3.6 Operational characteristics of switchgear and controlgear ..................................... 22

3.6.5 Terms and definitions relative to pressure (or density) ................................... 23

3.6.6 Terms and definitions relating to gas and vacuum tightness .......................... 23

3.6.7 Terms and definitions relating to liquid tightness............................................ 25

3.7 Characteristic quantities ....................................................................................... 25

3.8 Index of definitions ................................................................................................ 26

4 Normal and special service conditions ........................................................................... 28

4.1 Normal service conditions ..................................................................................... 28

4.1.1 General ......................................................................................................... 28

4.1.2 Indoor switchgear and controlgear ................................................................. 28

4.1.3 Outdoor switchgear and controlgear .............................................................. 29

4.2 Special service conditions ..................................................................................... 29

4.2.1 General ......................................................................................................... 29

4.2.2 Altitude .......................................................................................................... 29

4.2.3 Exposure to pollution ..................................................................................... 30

4.2.4 Temperature and humidity ............................................................................. 30

4.2.5 Exposure to abnormal vibrations, shock or tilting ........................................... 30

4.2.6 Wind speed ................................................................................................... 31

4.2.7 Other parameters .......................................................................................... 31

5 Ratings .......................................................................................................................... 31

5.1 General ................................................................................................................. 31

5.2 Rated voltage (U ) ................................................................................................ 31

5.2.1 General ......................................................................................................... 31

5.2.2 Range I for rated voltages of 245 kV and below ............................................. 31

5.2.3 Range II for rated voltages above 245 kV ...................................................... 32

5.3 Rated insulation level (U , U , U ) ........................................................................ 32

d p s

5.4 Rated frequency (f ) .............................................................................................. 36

5.5 Rated continuous current (I ) ................................................................................ 36

5.6 Rated short-time withstand current (I ) ................................................................. 36

5.7 Rated peak withstand current (I ) ......................................................................... 37

5.8 Rated duration of short-circuit (t ) ......................................................................... 37

5.9 Rated supply voltage of auxiliary and control circuits (U ) .................................... 37

5.9.1 General ......................................................................................................... 37

5.9.2 Rated supply voltage (U ) ............................................................................. 37

5.10 Rated supply frequency of auxiliary and control circuits ........................................ 38

5.11 Rated pressure of compressed gas supply for controlled pressure systems .......... 38

---------------------- Page: 4 ----------------------
IEC 62271-1:2017  IEC 2017 – 3 –

6 Design and construction ................................................................................................ 39

6.1 Requirements for liquids in switchgear and controlgear ......................................... 39

6.2 Requirements for gases in switchgear and controlgear ......................................... 39

6.3 Earthing of switchgear and controlgear ................................................................. 39

6.4 Auxiliary and control equipment and circuits ......................................................... 39

6.4.1 General ......................................................................................................... 39

6.4.2 Protection against electric shock ................................................................... 40

6.4.3 Components installed in enclosures ............................................................... 40

6.5 Dependent power operation .................................................................................. 43

6.6 Stored energy operation ........................................................................................ 43

6.6.1 General ......................................................................................................... 43

6.6.2 Energy storage in gas receivers or hydraulic accumulators ............................ 44

6.6.3 Energy storage in springs (or weights) ........................................................... 44

6.6.4 Manual charging ............................................................................................ 44

6.6.5 Motor charging .............................................................................................. 44

6.6.6 Energy storage in capacitors ......................................................................... 44

6.7 Independent unlatched operation (independent manual or power operation) ......... 44

6.8 Manually operated actuators ................................................................................. 45

6.9 Operation of releases ............................................................................................ 45

6.9.1 General ......................................................................................................... 45

6.9.2 Shunt closing release .................................................................................... 45

6.9.3 Shunt opening release ................................................................................... 45

6.9.4 Capacitor operation of shunt releases ............................................................ 45

6.9.5 Under-voltage release ................................................................................... 46

6.10 Pressure/level indication ....................................................................................... 46

6.10.1 Gas pressure ................................................................................................. 46

6.10.2 Liquid level .................................................................................................... 46

6.11 Nameplates........................................................................................................... 46

6.11.1 General ......................................................................................................... 46

6.11.2 Application ..................................................................................................... 46

6.12 Locking devices .................................................................................................... 48

6.13 Position indication ................................................................................................. 48

6.14 Degrees of protection provided by enclosures ....................................................... 48

6.14.1 General ......................................................................................................... 48

6.14.2 Protection of persons against access to hazardous parts and protection

of the equipment against ingress of solid foreign objects (IP coding) ............. 48

6.14.3 Protection against ingress of water (IP coding) .............................................. 48

6.14.4 Protection against mechanical impact under normal service conditions

(IK coding) ..................................................................................................... 48

6.15 Creepage distances for outdoor insulators ............................................................ 49

6.16 Gas and vacuum tightness .................................................................................... 49

6.16.1 General ......................................................................................................... 49

6.16.2 Controlled pressure systems for gas .............................................................. 49

6.16.3 Closed pressure systems for gas ................................................................... 49

6.16.4 Sealed pressure systems ............................................................................... 50

6.17 Tightness for liquid systems .................................................................................. 50

6.17.1 General ......................................................................................................... 50

6.17.2 Leakage rates ................................................................................................ 50

6.18 Fire hazard (flammability) ..................................................................................... 50

---------------------- Page: 5 ----------------------
– 4 – IEC 62271-1:2017  IEC 2017

6.19 Electromagnetic compatibility (EMC) ..................................................................... 50

6.20 X-ray emission ...................................................................................................... 51

6.21 Corrosion .............................................................................................................. 51

6.22 Filling levels for insulation, switching and/or operation .......................................... 51

7 Type tests ..................................................................................................................... 51

7.1 General ................................................................................................................. 51

7.1.1 Basics ........................................................................................................... 51

7.1.2 Information for identification of test objects .................................................... 51

7.1.3 Information to be included in type-test reports ............................................... 52

7.2 Dielectric tests ...................................................................................................... 52

7.2.1 General ......................................................................................................... 52

7.2.2 Ambient air conditions during tests ................................................................ 52

7.2.3 Wet test procedure ........................................................................................ 53

7.2.4 Arrangement of the equipment ....................................................................... 53

7.2.5 Criteria to pass the test ................................................................................. 54

7.2.6 Application of the test voltage and test conditions .......................................... 54

7.2.7 Tests of switchgear and controlgear of U ≤ 245 kV ....................................... 58

7.2.8 Tests of switchgear and controlgear of U > 245 kV ....................................... 58

7.2.9 Artificial pollution tests for outdoor insulators ................................................. 59

7.2.10 Partial discharge tests ................................................................................... 59

7.2.11 Dielectric tests on auxiliary and control circuits .............................................. 59

7.2.12 Voltage test as condition check ..................................................................... 59

7.3 Radio interference voltage (RIV) test .................................................................... 60

7.4 Resistance measurement ...................................................................................... 60

7.4.1 Measurement of the resistance of auxiliary contacts class 1 and class 2........ 60

7.4.2 Measurement of the resistance of auxiliary contacts class 3 .......................... 60

7.4.3 Electrical continuity of earthed metallic parts test .......................................... 60

7.4.4 Resistance measurement of contacts and connections in the main

circuit as a condition check ............................................................................ 60

7.5 Continuous current tests ....................................................................................... 61

7.5.1 Condition of the test object ............................................................................ 61

7.5.2 Arrangement of the equipment ....................................................................... 61

7.5.3 Test current and duration ............................................................................... 62

7.5.4 Temperature measurement during test .......................................................... 63

7.5.5 Resistance of the main circuit ........................................................................ 64

7.5.6 Criteria to pass test ....................................................................................... 64

7.6 Short-time withstand current and peak withstand current tests .............................. 68

7.6.1 General ......................................................................................................... 68

7.6.2 Arrangement of the equipment and of the test circuit ..................................... 68

7.6.3 Test current and duration ............................................................................... 69

7.6.4 Conditions of the test object after test ............................................................ 70

7.7 Verification of the protection ................................................................................. 70

7.7.1 Verification of the IP coding ........................................................................... 70

7.7.2 Verification of the IK coding ........................................................................... 70

7.8 Tightness tests ..................................................................................................... 71

7.8.1 General ......................................................................................................... 71

7.8.2 Controlled pressure systems for gas .............................................................. 72

7.8.3 Closed pressure systems for gas ................................................................... 72

7.8.4 Sealed pressure systems ............................................................................... 73

---------------------- Page: 6 ----------------------
IEC 62271-1:2017  IEC 2017 – 5 –

7.8.5 Liquid tightness tests ..................................................................................... 73

7.9 Electromagnetic compatibility tests (EMC) ............................................................ 73

7.9.1 Emission tests ............................................................................................... 73

7.9.2 Immunity tests on auxiliary and control circuits .............................................. 76

7.9.3 Additional EMC tests on auxiliary and control circuits .................................... 78

7.10 Additional tests on auxiliary and control circuits .................................................... 79

7.10.1 General ......................................................................................................... 79

7.10.2 Functional tests ............................................................................................. 79

7.10.3 Verification of the operational characteristics of auxiliary contacts ................. 79

7.10.4 Environmental tests ....................................................................................... 80

7.10.5 Dielectric test ................................................................................................ 81

7.11 X-radiation test for vacuum interrupters ................................................................ 81

7.11.1 General requirements .................................................................................... 81

7.11.2 Test voltage and measurement procedure ..................................................... 83

7.11.3 Acceptance criteria ........................................................................................ 83

8 Routine tests ................................................................................................................. 84

8.1 General ................................................................................................................. 84

8.2 Dielectric test on the main circuit .......................................................................... 84

8.3 Tests on auxiliary and control circuits ................................................................... 85

8.3.1 Inspection of auxiliary and control circuits, and verification of conformity

to the circuit diagrams and wiring diagrams ................................................... 85

8.3.2 Functional tests ............................................................................................. 85

8.3.3 Verification of protection against electrical shock ........................................... 85

8.3.4 Dielectric tests ............................................................................................... 85

8.4 Measurement of the resistance of the main circuit ................................................. 85

8.5 Tightness test ....................................................................................................... 86

8.5.1 General ......................................................................................................... 86

8.5.2 Controlled pressure systems for gas .............................................................. 86

8.5.3 Closed pressure systems for gas ................................................................... 86

8.5.4 Sealed pressure systems ............................................................................... 86

8.5.5 Liquid tightness tests ..................................................................................... 86

8.6 Design and visual checks ...................................................................................... 86

9 Guide to the selection of switchgear and controlgear (informative) ................................ 87

9.1 General ................................................................................................................. 87

9.2 Selection of rated values ....................................................................................... 87

9.3 Cable-interface considerations .............................................................................. 87

9.4 Continuous or temporary overload due to changed service conditions ................... 87

9.5 Environmental aspects .......................................................................................... 87

9.5.1 Service conditions ......................................................................................... 87

9.5.2 Clearances affected by service conditions ..................................................... 87

9.5.3 High humidity ................................................................................................. 87

9.5.4 Solar radiation ............................................................................................... 88

10 Information to be given with enquiries, tenders and orders (informative) ........................ 88

10.1 General ................................................................................................................. 88

10.2 Information with enquiries and orders ................................................................... 88

10.3 Information with tenders ........................................................................................ 89

11 Transport, storage, installation, operating instructions and maintenance........................ 90

11.1 General ................................................................................................................. 90

11.2 Conditions during transport, storage and installation ............................................. 90

---------------------- Page: 7 ----------------------
– 6 – IEC 62271-1:2017  IEC 2017

11.3 Installation ............................................................................................................ 90

11.3.1 General ......................................................................................................... 90

11.3.2 Unpacking and lifting ..................................................................................... 90

11.3.3 Assembly ...........................................................................................

...

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