Test Instrument Reference

Data record instr.vacuum-interrupter-tester.mac-pressure-and-life

Verified 2026-10-27 Confidence: Medium

Because the MAC reading quantifies the condition of the vacuum rather than giving a pass or fail, readings tracked over time can be extrapolated to estimate when the vacuum will no longer interrupt current; the first MAC test on an interrupter gives the most valid reading because the test itself temporarily affects the internal pressure.

ProvenanceGroup CBS article page supports data record instr.vacuum-interrupter-tester.mac-pressure-and-life, which is cited on the entry Vacuum interrupter tester.SOURCEGroup CBS article pageGroup CBS article pageManufacturer pageDATA RECORDinstr.vacuum-interrupter-tester.mac-pressure-and-lifeinstr.vacuum-interrupter..Verified 2026-10-27ENTRYVacuum interrupter testerVacuum interrupter testerNo revisions
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StepItemDetail
SourceGroup CBS article pageManufacturer page
Data recordinstr.vacuum-interrupter-tester.mac-pressure-and-lifeVerified 2026-10-27
EntryVacuum interrupter testerNo revisions
Subject
Vacuum interrupter tester (Instrument classes)
Kind
Instrument fact
Source
Group CBS article page, web page edition, Top 6 Commonly Asked Questions About MAC-TS4 Answered, Group CBS. 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.mac-pressure-and-life." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/data/instr.vacuum-interrupter-tester.mac-pressure-and-life/.