Test Instrument Reference

Data record instr.vacuum-interrupter-tester.surface-contamination

Verified 2026-10-27 Confidence: High

Contamination on the outside of the interrupter conducts a small current under the applied direct voltage and can fail a sound interrupter, so the surface is cleaned and dried and the test repeated, with the lead clamps moved to the opposite positions, before the interrupter is judged defective.

ProvenanceMegger product page supports data record instr.vacuum-interrupter-tester.surface-contamination, which is cited on the entry Vacuum interrupter tester.SOURCEMegger product pageMegger product pageManufacturer pageDATA RECORDinstr.vacuum-interrupter-tester.surface-contaminationinstr.vacuum-interrupter..Verified 2026-10-27ENTRYVacuum interrupter testerVacuum interrupter testerNo revisions
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Provenance: the chain from source to entry.
StepItemDetail
SourceMegger product pageManufacturer page
Data recordinstr.vacuum-interrupter-tester.surface-contaminationVerified 2026-10-27
EntryVacuum interrupter testerNo revisions
Subject
Vacuum interrupter tester (Instrument classes)
Kind
Instrument fact
Source
Megger product page, web page edition, VIDAR vacuum interrupter 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.vacuum-interrupter-tester.surface-contamination." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.vacuum-interrupter-tester.surface-contamination/.