IEC 62271-112:2021 RLV
Redline version
High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines
Abstract
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.
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Additional information
| Publication type | International Standard |
|---|---|
| Publication date | 2021-07-13 |
| Edition | 2.0 |
| Available language(s) | English |
| TC/SC | TC 17/SC 17A - Switching devicesrss |
| ICS | 29.130.10 - High voltage switchgear and controlgear
29.130.99 - Other switchgear and controlgear |
| Stability date | 2028 |
| Pages | 84 |
| File size | 2358 KB |
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