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IEC 62271-108 Ed. 2.0 b:2020

High-voltage switchgear and controlgear - Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages above 52 kV
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IEC 62271-108 Ed. 2.0 b:2020

High-voltage switchgear and controlgear - Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages above 52 kV

PUBLISH DATE 2020
PAGES 46
IEC 62271-108 Ed. 2.0 b:2020
High-voltage switchgear and controlgear - Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages above 52 kV
IEC 62271-108:2020 applies to high-voltage alternating current disconnecting circuit-breakers for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV.
This second edition cancels and replaces the first edition published in 2005. This edition contains the following significant technical changes with respect to the previous edition:
- The document has been restructured according to IEC 62271-1:2017.
- The document has been adapted to some of the changes introduced in IEC 62271-100:–[1].
- The document has been adapted to some of the changes introduced in IEC 62271-102:2018.
- References have been reviewed and updated.
- Some definitions have been reviewed and adapted to the latest IEV editions.
- Rated static terminal load and static terminal load test have been removed and a design requirement for static mechanical loads has been included.
- Additional type tests for auxiliary and control circuits have been included.
- X-radiation test procedure for vacuum interrupters has been included.
- Type test for testing of interlocking device and type test for testing of temporary mechanical locking devices have been included.
- Special requirements for making and breaking tests on class E2 disconnecting circuit-breakers have been removed.
[1] Under preparation. Stage at the time of publication: IEC CDV 62271-100:2020.
SDO IEC: International Electrotechnical Commission
Document Number IEC 62271
Publication Date July 1, 2020
Language b - English & French
Page Count
Revision Level 2.0
Supercedes
Committee 17A
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