IEC 62271-112:2021现行
High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines
出版：International Electrotechnical Committee
专家解读视频
IEC 62271-112:2021 is available as IEC 62271-112:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62271-112:2021 applies to AC high-speed earthing switches (hereinafter termed HSES) designed for indoor and outdoor installation and for operation at service frequencies of 50 Hz and 60 Hz on systems having rated 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. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: The document has been updated to the second edition of IEC 62271-1:2017.
I.S. EN IEC 62271-112:2021 - Identical
DS/EN IEC 62271-112:2021 - Identical
EN IEC 62271-112:2021 - Identical
UTG 2:2021 - Identical
BS EN IEC 62271-112:2021 - Identical
UNE-EN IEC 62271-112:2021 - Identical
DIN EN IEC 62271-112:2023-01 - Identical
OVE EN IEC 62271-112:2023 02 01 - Identical
VDE 0671-112:2023-01 - Identical
CEI EN IEC 62271-112:2022 - Identical
PN-EN IEC 62271-112:2022-04 - Identical
