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BS EN 50171:2021 Central safety power supply systems (Incorporating corrigenda May 2022 and August 2024)
Publication Year
2021
Document Status
Current
Abstract
Gives general requirements for central power supply systems for an independent energy supply to essential safety equipment. Covers systems permanently connected to a.c. supply voltages not exceeding 1,000V and that use batteries as the alternative power source.
Document History
Supersedes BS EN 50171:2001. Amendment Corrigendum dated 31 May 2022 - Correction to supersession details in national foreword. Amendment dated 30 September 2024 - Implementation of CENELEC corrigendum August 2024: European foreword, DOW corrected.
ISBN
9780539332681
Publisher Information
British Standards Institution
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