Data record `tests.dynamic-contact-resistance.equipment.breaker-sf6.maintenance`

Verified 2026-10-29 Confidence: High

Dynamic Contact Resistance is specified for sulfur hexafluoride circuit breakers in maintenance testing at clause 7.6.4.B.4 of ANSI/NETA MTS-2023. The clause lists the dynamic contact or pole resistance test as an optional test beside the static contact resistance test.

Value: sulfur hexafluoride circuit breakers

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 MTS-2023	Licensed standard, clause 7.6.4.B.4
Data record	tests.dynamic-contact-resistance.equipment.breaker-sf6.maintenance	Verified 2026-10-29
Entry	Dynamic Contact Resistance	No revisions

Subject

Dynamic Contact Resistance (Test methods)

Kind

Equipment fact

Source

ANSI/NETA MTS-2023, clause 7.6.4.B.4, Maintenance Testing Specifications for Electrical Power Equipment and Systems, NETA. Publisher page for ANSI/NETA MTS-2023 Publisher information page

Also stated in

FIST 3-16, section 8.3.2, page 69 (May 2024).
Read the reference passage

8.3.2 Dynamic Resistance Measurement

"The DRM is meant to be a comparison between past measurements. A sudden decrease in arcing contact length should be investigated. However, in some cases, the results can indicate other contact problems, including broken contact fingers. [...] The DRM is always taken with a motion analysis."

FIST 3-16, section 8.3.2, page 69, May 2024. Agency copy of FIST 3-16

The current standard governs; this passage is a public-domain description of the practice dated May 2024.

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.dynamic-contact-resistance.equipment.breaker-sf6.maintenance." Circuit Breaker Reference. 2026-10-29. https://www.circuitbreakerreference.com/data/tests.dynamic-contact-resistance.equipment.breaker-sf6.maintenance/.

Circuit Breaker Reference, Data record tests.dynamic-contact-resistance.equipment.breaker-sf6.maintenance (Oct. 29, 2026), https://www.circuitbreakerreference.com/data/tests.dynamic-contact-resistance.equipment.breaker-sf6.maintenance/.

@misc{etr-data-tests-dynamic-contact-resistance-equipment-breaker-sf6-maintenance,
  title = {Data record tests.dynamic-contact-resistance.equipment.breaker-sf6.maintenance},
  howpublished = {\url{https://www.circuitbreakerreference.com/data/tests.dynamic-contact-resistance.equipment.breaker-sf6.maintenance/}},
  organization = {Circuit Breaker Reference},
  publisher = {Circuit Breaker Reference},
  year = {2026},
  note = {last substantive change 2026-10-29}
}

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