Electrical Maintenance Reference

Data record equip.liquid-filled-transformers.nfpa70b.electrical-tests

Verified 2026-10-27 Confidence: High

Table 11.3.5 of NFPA 70B-2026 lists the transformer electrical tests, among them core insulation resistance, excitation current, insulation power factor and its tip-up, bushing power factor, turns ratio, winding resistance, bolted connection resistance, sweep frequency response analysis and a set of insulating-fluid tests that includes dissolved gas analysis and furan analysis.

ProvenanceNFPA 70B-2026 supports data record equip.liquid-filled-transformers.nfpa70b.electrical-tests, which is cited on the entry Liquid filled transformers.SOURCENFPA 70B-2026NFPA 70B-2026Licensed standard, clause Table 11.3.5DATA RECORDequip.liquid-filled-transformers.nfpa70b.electrical-testsequip.liquid-filled-tran..Verified 2026-10-27ENTRYLiquid filled transformersLiquid filled transformersNo revisions
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.
StepItemDetail
SourceNFPA 70B-2026Licensed standard, clause Table 11.3.5
Data recordequip.liquid-filled-transformers.nfpa70b.electrical-testsVerified 2026-10-27
EntryLiquid filled transformersNo revisions
Subject
Liquid filled transformers (Equipment classes)
Kind
Equipment fact
Source
NFPA 70B-2026, clause Table 11.3.5, Standard for Electrical Equipment Maintenance, NFPA.

History

Every recorded change to this data record, oldest first.
DateChange
2026-10-27created

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"Data record equip.liquid-filled-transformers.nfpa70b.electrical-tests." Electrical Maintenance Reference. 2026-10-27. https://www.electricalmaintenancereference.com/data/equip.liquid-filled-transformers.nfpa70b.electrical-tests/.