IEC 62271-104:2020
(Main)High-voltage switchgear and controlgear - Part 104: Alternating current switches for rated voltages higher than 52 kV
High-voltage switchgear and controlgear - Part 104: Alternating current switches for rated voltages higher than 52 kV
IEC 62271-104:2020 is applicable to three-pole alternating current switches for rated voltages higher than 52 kV, having making and breaking current ratings, for indoor and outdoor installations, and for rated frequencies up to and including 60 Hz.
This third edition replaces and cancels the second edition published in 2015. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- new numbering, following IEC 62271-1:2017.
Appareillage à haute tension - Partie 104: Interrupteurs à courant alternatif pour tensions assignées supérieures à 52 kV
L'IEC 62271-104:2020 est applicable aux interrupteurs à courant alternatif triphasé de tension assignée supérieure à 52 kV, ayant des pouvoirs de coupure et de fermeture assignés, prévus pour les installations à l'intérieur et à l'extérieur, et de fréquence assignée inférieure ou égale à 60 Hz.
Cette troisième édition remplace et annule la deuxième édition parue en 2015. Elle constitue une révision technique.
Cette édition inclut la modification technique majeure suivante par rapport à l'édition précédente:
- nouvelle numérotation selon l'IEC 62271-1:2017.
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IEC 62271-104 ®
Edition 3.0 2020-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 104: Alternating current switches for rated voltages higher than 52 kV
Appareillage à haute tension –
Partie 104: Interrupteurs à courant alternatif pour tensions assignées
supérieures à 52 kV
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IEC 62271-104 ®
Edition 3.0 2020-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 104: Alternating current switches for rated voltages higher than 52 kV
Appareillage à haute tension –
Partie 104: Interrupteurs à courant alternatif pour tensions assignées
supérieures à 52 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-8609-8
– 2 – IEC 62271-104:2020 © IEC 2020
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 8
3 Terms and definitions . 8
3.1 General terms and definitions . 8
3.2 Assemblies . 8
3.3 Parts of assemblies . 9
3.4 Switching devices . 9
3.5 Parts of switches . 10
3.6 Operational characteristics of switches . 10
3.7 Characteristic quantities . 10
4 Normal and special service conditions . 12
5 Ratings . 12
5.1 General . 12
5.2 Rated voltage (U ) . 12
r
5.3 Rated insulation level (U , U , U ) . 12
d p s
5.4 Rated frequency (f ) . 12
r
5.5 Rated continuous current (I ) . 12
r
5.6 Rated short-time withstand current (I ) . 12
k
5.7 Rated peak withstand current (I ) . 13
p
5.8 Rated duration of short-circuit (t ) . 13
k
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 13
a
5.10 Rated supply frequency of auxiliary and control circuits . 13
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 13
5.101 Rated earth fault breaking current . 13
5.102 Rated short-circuit making current . 13
5.103 Rated mainly active load-breaking current . 13
5.104 Rated closed-loop breaking current . 13
5.105 Rated capacitive switching currents . 13
5.106 Inductive load switching . 14
5.107 Rated static mechanical terminal load . 15
5.108 Coordination of rated values for a general purpose switch . 15
5.109 Coordination of rated values for limited purpose and special purpose
switches . 15
6 Design and construction . 16
6.1 Requirements for liquids in high-voltage switches . 16
6.2 Requirements for gases in high-voltage switches . 16
6.3 Earthing of high-voltage switches . 16
6.4 Auxiliary and control equipment and circuits . 16
6.5 Dependent power operation . 16
6.6 Stored energy operation . 16
6.7 Independent unlatched operation (independent manual or power operation) . 16
6.8 Manually operated actuators . 16
6.9 Operation of releases . 16
6.10 Pressure/level indication . 16
6.11 Nameplates. 16
6.12 Locking devices . 17
6.13 Position indication . 18
6.14 Degree of protection provided by enclosures . 18
6.15 Creepage distances for outdoor insulators . 18
6.16 Gas and vacuum tightness . 18
6.17 Tightness for liquid systems . 18
6.18 Fire hazard (flammability) . 18
6.19 Electromagnetic compatibility (EMC) . 18
6.20 X-ray emission . 18
6.21 Corrosion . 18
6.22 Filling levels for insulation, switching and/or operation . 18
6.101 Closing mechanism . 18
6.102 Mechanical strength . 18
6.103 Position of the movable contact system and its indicating or signalling device . 18
7 Type tests . 19
7.1 General . 19
7.2 Dielectric tests . 20
7.3 Radio interference voltage (RIV) tests . 21
7.4 Resistance measurement . 21
7.5 Continuous current tests . 21
7.6 Short-time withstand current and peak withstand current tests . 21
7.7 Verification of the protection . 21
7.8 Tightness tests . 21
7.9 Electromagnetic compatibility tests (EMC) . 21
7.10 Additional tests on auxiliary and control circuits . 21
7.11 X-radiation test for vacuum interrupters . 21
7.101 Mechanical operatio
...
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