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HET UITVOEREN VAN TESTEN
6.2.1 Weerstandtest beschermingsleiding
Deze test is bedoeld om de (overgang)weerstand(en) van de
beschermingsleiding en de metalen behuizing van het testobject te
controleren.
Gehanteerde grenswaarden zijn: (volgens tabel 6 en formule
5.3.3.102.9 van de NEN 3140 3e druk)
- apparaten met snoer (tot 5m en 2.5 mm²). 0,3 Ω
- maximaal (vb kabelhaspels langer dan 35 m). 1,0 Ω.
De volledige tabel is terug te vinden in Bijlage 4
De tester zet een lage spanning over de te meten weerstand. Als het
testobject geen netstekker heeft, maar vast is aangesloten op het net,
gebruik dan een tweede testsnoer (aangesloten op de aansluiting voor
de 4-punts meting) om de beschermingsleiding op aan te sluiten.
Verwijder het zwarte aardsnoer na de meting!
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