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About This Item

 

Full Description

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.

HSESs described in this document are intended to extinguish the secondary arc remaining after clearing faults on transmission lines by the circuit-breakers.

All current amendments available at time of purchase are included with the purchase of this document.
 

Document History

  1. 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

    • Most Recent
  2. BS EN 62271-112:2013


    High-voltage switchgear and controlgear-Alternating current high-speed earthing switches for secondary arc extinction on transmission lines

    • Historical Version
  3. BS 12/30252920 DC


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

    • Historical Version