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BS EN IEC 62271-112:2021
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High-voltage switchgear and controlgear Alternating current high-speed earthing switches for secondary arc extinction on transmission lines
Hardcopy , PDF
English
13-09-2021
This part of IEC 62271 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.
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