BS EN IEC 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
Withdrawn
Abstract
Covers requirements which relate to measuring equipment used to test the phase sequence in three-phase distribution systems.
Document History
Supersedes BS EN 61557-7:2007.
ISBN
9780580990755
Publisher Information
British Standards Institution
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