Data record `tests.insulation-resistance.equipment.busway-enclosed.acceptance`

Verified 2026-10-29 Confidence: High

Insulation Resistance is specified for metal-enclosed busways in acceptance testing at clause 7.4.B.2 of ANSI/NETA ATS-2025. The clause calls for a one-minute insulation resistance test on each busway, phase-to-phase and phase-to-ground, at the manufacturer's test voltage.

Value: metal-enclosed busways

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	ANSI/NETA ATS-2025	Licensed standard, clause 7.4.B.2
Data record	tests.insulation-resistance.equipment.busway-enclosed.acceptance	Verified 2026-10-29
Entry	Insulation Resistance	1 revision

Subject

Insulation Resistance (Test methods)

Kind

Equipment fact

Source

ANSI/NETA ATS-2025, clause 7.4.B.2, Acceptance Testing Specifications for Electrical Power Equipment and Systems, NETA. Publisher page for ANSI/NETA ATS-2025 Publisher information page

Also stated in

FIST 4-7, section 6.1.21, page 67 (August 2023).
Read the reference passage

6.1.21 Electrical Bus Systems

"After assembly and prior to energization, the electrical bus system has field tests performed. The field test includes resistance measurements for bolted connections, insulation resistance, dielectric, weather resistance, and forced-air-cooled (when applicable)."

FIST 4-7, section 6.1.21, page 67, August 2023. Agency copy of FIST 4-7

The current standard governs; this passage is a public-domain description of the practice dated August 2023.

History

Every recorded change to this data record, oldest first.
Date	Change
2026-10-29	created

Cite this page

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

"Data record tests.insulation-resistance.equipment.busway-enclosed.acceptance." Electrical Testing Reference. 2026-10-29. https://www.electricaltestingreference.com/data/tests.insulation-resistance.equipment.busway-enclosed.acceptance/.

Electrical Testing Reference, Data record tests.insulation-resistance.equipment.busway-enclosed.acceptance (Oct. 29, 2026), https://www.electricaltestingreference.com/data/tests.insulation-resistance.equipment.busway-enclosed.acceptance/.

@misc{etr-data-tests-insulation-resistance-equipment-busway-enclosed-acceptance,
  title = {Data record tests.insulation-resistance.equipment.busway-enclosed.acceptance},
  howpublished = {\url{https://www.electricaltestingreference.com/data/tests.insulation-resistance.equipment.busway-enclosed.acceptance/}},
  organization = {Electrical Testing Reference},
  publisher = {Electrical Testing Reference},
  year = {2026},
  note = {last substantive change 2026-10-29}
}

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