Data record `std.iec-61557-7.scope`

Verified 2026-10-27 Confidence: High

IEC 61557-7:2019 states the requirements for measuring equipment that tests the phase sequence in three-phase distribution systems, where the indication may be mechanical, visual or audible. The document does not apply to additional measurements of other quantities and does not apply to monitoring relays.

Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.

Provenance: the chain from source to entry.
Step	Item	Detail
Source	IEC 61557-7:2019	Publisher catalog
Data record	std.iec-61557-7.scope	Verified 2026-10-27
Entry	Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence	No revisions

Subject: Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence (Standards)
Kind: Standard scope
Source: IEC 61557-7:2019, Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence, IEC. Publisher page

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-27	created
2026-10-27	review_status unreviewed -> software_reviewed

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record std.iec-61557-7.scope." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/std.iec-61557-7.scope/.

Test Instrument Reference, Data record std.iec-61557-7.scope (Oct. 27, 2026), https://www.testinstrumentreference.com/data/std.iec-61557-7.scope/.

@misc{etr-data-std-iec-61557-7-scope,
  title = {Data record std.iec-61557-7.scope},
  howpublished = {\url{https://www.testinstrumentreference.com/data/std.iec-61557-7.scope/}},
  organization = {Test Instrument Reference},
  publisher = {Test Instrument Reference},
  year = {2026},
  note = {last substantive change 2026-10-27}
}

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