CEI EN 62271-1/A1:2022
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High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear (IEC 62271-1:2017/AMD1:2021)
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English
07-01-2022
This Variant makes changes to Section 6.4.1 relating to manoeuvring and control equipment and auxiliary electrical circuits of the Basic Standard, which applies to alternating current manoeuvring and control equipment, intended for indoor and outdoor installation, for operation at operating frequencies up to and including 60 Hz and in systems with a nominal voltage exceeding 1 kV.
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