This 3-phase test tagger at work seems to be using a 200mA ‘resistance’ test for earth and they seem to have a managed to accidentally make an impedance tester instead,,,

Follow

If the cable is coiled it fails with a spurious high resistance like 12 ohms but if it’s entirely uncoiled and the tester is kept outside the loop of the cable, it passes with <0.1 ohm

Sign in to participate in the conversation
Cathode Church

A place for trans makers, coders, tinkerers and dreamers.