BS EN IEC 62271-112. High-voltage switchgear and controlgear - Part 112. Alternating current high-speed earthing switches for secondary arc extinction on transmission lines Ingestion-build-44616 p) Clause 20 multi-zoned smoke

Name: BS EN IEC 62271-112. High-voltage switchgear and controlgear - Part 112. Alternating current high-speed earthing switches for secondary arc extinction on transmission lines Ingestion-build-44616 p) Clause 20 multi-zoned smoke
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Description

p) Clause 20 multi-zoned smoke ventilation systems text relocated to new subclause 20

This document also covers a test procedure for decomposition blockers

cableless control systems for travelling functions

their relative definitions

BS EN IEC 62271-112. High-voltage switchgear and controlgear - Part 112. Alternating current high-speed earthing switches for secondary arc extinction on transmission lines Ingestion-build-44616 p) Clause 20 multi-zoned smoke

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