27K views · 157 reactions | How to Find Incorrect Supply Polarity...
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27K views · 157 reactions | How to Find Incorrect Supply Polarity...
GSH Electrical Training. . How to Find Incorrect Supply Polarity Testing and Fault Finding Live Testing Single Phase 230 Volts How to find incorrect supply polarity with an approved voltage indicator. The first live test in BS 7671 is recheck supply polarity it is so important and in this video Marcus demonstrates how to prove supply polarity ...
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