Test Instrument Reference

Data record instr.insulation-resistance-tester.polarization-index-mode

Verified 2026-10-27 Confidence: High

In a polarization index mode the tester holds the test voltage for a fixed period, records the insulation resistance at an early and a late fixed time, and reports the ratio of the later reading to the earlier one; a high ratio indicates a high degree of polarization and therefore good insulation condition, while a timed insulation test simply ends after a user-set duration.

ProvenanceMegger product page supports data record instr.insulation-resistance-tester.polarization-index-mode, which is cited on the entry Insulation resistance tester.SOURCEMegger product pageMegger product pageManufacturer pageDATA RECORDinstr.insulation-resistance-tester.polarization-index-modeinstr.insulation-resista..Verified 2026-10-27ENTRYInsulation resistance testerInsulation resistance te..1 revision
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StepItemDetail
SourceMegger product pageManufacturer page
Data recordinstr.insulation-resistance-tester.polarization-index-modeVerified 2026-10-27
EntryInsulation resistance tester1 revision
Subject
Insulation resistance tester (Instrument classes)
Kind
Instrument fact
Source
Megger product page, web page edition, BM5200 5 kV insulation resistance tester, 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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"Data record instr.insulation-resistance-tester.polarization-index-mode." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.insulation-resistance-tester.polarization-index-mode/.