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EN IEC 62271-112:2021

High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines EN IEC 62271-112:2021

Publication date:   Dec 16, 2021

General information

60.60 Standard published   Sep 3, 2021

CENELEC

CLC/TC 17AC High-voltage switchgear and controlgear

European Norm

29.130.10   High voltage switchgear and controlgear | 29.130.99   Other switchgear and controlgear

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Scope

This part of IEC 62271 applies to AC high-speed earthing switches (hereafter termed HSES) designed for indoor and outdoor installation and for operation at service frequencies of 50 Hz and 60 Hz on systems having voltages of 550 kV and above.
HSESs described in this document are intended to extinguish the secondary arc remaining after clearing faults on transmission lines by the circuit-breakers.
For more detailed information on HSESs, refer to Annex A.

Life cycle

PREVIOUSLY

WITHDRAWN
EN 62271-112:2013

NOW

PUBLISHED
EN IEC 62271-112:2021
60.60 Standard published
Sep 3, 2021