BS EN 61557-7:2022 Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures. Phase sequence
Publication Year
2022
Document Status
Current
Abstract
Covers requirements which relate to measuring equipment used to test the phase sequence in three-phase distribution systems.
Document History
Supersedes BS EN IEC 61557-7:2022. Amendment dated 31 October 2023 - Implementation of IEC amendment 1:2023 with CENELEC endorsement A1:2023. See National foreword for contractual and legal considerations.
ISBN
9780539174717
Publisher Information
British Standards Institution
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