Data record `tests.dielectric-withstand.ieeec57-12-90.field`

Verified 2026-10-24 Confidence: High

Clause 10.1.7 of IEEE C57.12.90-2021 is the one clause of the code that addresses testing in the field: periodic dielectric tests are not recommended because of the severity of the stress, they may be warranted after combustible gas detection or similar findings, and when required they are low-frequency applied-voltage and induced-voltage tests at reduced levels, with the voltage caps by transformer class and the durations given in the clause and in Table 2.

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 C57.12.90-2021	Licensed standard, clause 10.1.7
Data record	tests.dielectric-withstand.ieeec57-12-90.field	Verified 2026-10-24
Entry	Dielectric Withstand	No revisions

Subject: Dielectric Withstand (Test methods)
Kind: Method fact
Source: IEEE C57.12.90-2021, clause 10.1.7, Test Code for Liquid-Immersed Distribution, Power and Regulating Transformers, IEEE.

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-24	created
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 tests.dielectric-withstand.ieeec57-12-90.field." Electrical Testing Reference. 2026-10-24. https://www.electricaltestingreference.com/data/tests.dielectric-withstand.ieeec57-12-90.field/.

Electrical Testing Reference, Data record tests.dielectric-withstand.ieeec57-12-90.field (Oct. 24, 2026), https://www.electricaltestingreference.com/data/tests.dielectric-withstand.ieeec57-12-90.field/.

@misc{etr-data-tests-dielectric-withstand-ieeec57-12-90-field,
  title = {Data record tests.dielectric-withstand.ieeec57-12-90.field},
  howpublished = {\url{https://www.electricaltestingreference.com/data/tests.dielectric-withstand.ieeec57-12-90.field/}},
  organization = {Electrical Testing Reference},
  publisher = {Electrical Testing Reference},
  year = {2026},
  note = {last substantive change 2026-10-24}
}

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