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test that ensure all live and earth conductors in an electrical installation have been connected to the correct terminals and not mistakenly reversed, testimine, mis tagab, et kõik elektripaigaldises olevad pingestatud ja maandusjuhtmed on ühendatud õigete klemmidega ega ole ekslikult ümber pööratud
polarity testing . Metroloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mea/polarity%20testing/1/eng (03.07.2026)