BS EN IEC 62271‑112 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 BS EN IEC 62271‑112 are intended to extinguish the secondary arc remaining after clearing faults on transmission lines by the circuit-breakers.
BS EN IEC 62271‑112 on AC high-speed earthing switches is useful for:
Alternating current high-speed earthing switches for secondary arc extinction on transmission lines plays very important roles in event of an accident to protect your power systems.
The purpose of BS EN IEC 62271‑112 is to provide you with all the standardized requirements for AC high-speed earthing switches that are designed for indoor and outdoor installation. These requirements help you manufacture high quality and durable switchgears and control gears in a standardized manner.
BS EN IEC 62271‑112 also guides you on all types of testing methods such as radio interference voltage test (RIV), operating and mechanical endurance test and continuous current test, in order to verify the performance for efficient and functional operation of switchgears and controlgear.
The hazardous effects from excessive currents can also be mitigated with well-functioning switchgear. Overall, adopting the global safety standards defined in BS EN IEC 62271-112 can instil credibility and acceptance for your business.
BS EN IEC 62271‑112:2021 supersedes BS EN 62271‑112:2013, which will be withdrawn on 28 March 2022. BS EN IEC 62271‑112:2021 has been updated to the second edition of IEC 62271-1:2017
EN 62271-112 Ed.2.0
IEC 62271-112 Ed.2.0