OVE EN IEC 61557-7 : 2023 01 01
Current
Current
The latest, up-to-date edition.
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
Available format(s)
Hardcopy
Language(s)
English, German
Published date
01-01-2023
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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