CEI EN IEC 61557-7:2022
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures Part 7: Phase sequence
Amended by
Available format(s)
Hardcopy , PDF
Superseded date
19-06-2023
Language(s)
English
Published date
01-11-2022
Publisher
This part of IEC 61557 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems.
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