Test Instrument Reference

Data record instr.loop-impedance-tester.prospective-fault-current

Verified 2026-10-27 Confidence: Medium

From the measured loop impedance and the measured line voltage the instrument calculates the prospective fault current, the current that would flow in a short circuit at the test point, which is compared with the breaking capacity and the operating characteristic of the protective device.

ProvenanceMegger Electrical Tester article supports data record instr.loop-impedance-tester.prospective-fault-current, which is cited on the entry Loop impedance tester.SOURCEMegger Electrical Tester articleMegger Electrical Tester..Manufacturer pageDATA RECORDinstr.loop-impedance-tester.prospective-fault-currentinstr.loop-impedance-tes..Verified 2026-10-27ENTRYLoop impedance testerLoop impedance testerNo 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
SourceMegger Electrical Tester articleManufacturer page
Data recordinstr.loop-impedance-tester.prospective-fault-currentVerified 2026-10-27
EntryLoop impedance testerNo revisions
Subject
Loop impedance tester (Instrument classes)
Kind
Instrument fact
Source
Megger Electrical Tester article, 2018-07-13 edition, The many facets of loop testing, Megger. Publisher page

History

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

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

"Data record instr.loop-impedance-tester.prospective-fault-current." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.loop-impedance-tester.prospective-fault-current/.