Data record `std.ieee-1547.amendment-2020.scope`

Verified 2026-10-24 Confidence: Medium

IEEE 1547a-2020, Amendment 1 to IEEE 1547-2018, makes a single normative change, to Table 13 in clause 6.4.1: the allowable clearing-time range of each of the two undervoltage trip functions for abnormal performance Category III is broadened so that an authority governing interconnection requirements can adopt that category without writing regional exceptions. Defaults, voltage thresholds, the overvoltage functions, Category I, Category II and the frequency tables are left as they were.

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	IEEE 1547a-2020	Licensed standard, clause 6.4.1, Table 13
Data record	std.ieee-1547.amendment-2020.scope	Verified 2026-10-24
Entry	IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces	No revisions

Subject: IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces (Standards)
Kind: Standard scope
Source: IEEE 1547a-2020, clause 6.4.1, Table 13, Amendment 1 to IEEE 1547-2018, IEEE.

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-24	created
2026-10-24	revised
2026-10-24	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.ieee-1547.amendment-2020.scope." Interconnection Reference. 2026-10-24. https://www.interconnectionreference.com/data/std.ieee-1547.amendment-2020.scope/.

Interconnection Reference, Data record std.ieee-1547.amendment-2020.scope (Oct. 24, 2026), https://www.interconnectionreference.com/data/std.ieee-1547.amendment-2020.scope/.

@misc{etr-data-std-ieee-1547-amendment-2020-scope,
  title = {Data record std.ieee-1547.amendment-2020.scope},
  howpublished = {\url{https://www.interconnectionreference.com/data/std.ieee-1547.amendment-2020.scope/}},
  organization = {Interconnection Reference},
  publisher = {Interconnection Reference},
  year = {2026},
  note = {last substantive change 2026-10-24}
}

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