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welshwizard

welshwizard

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...this?..

test.gif


 
The reading would be the resistance of the R1 line conductor through the switch.

Assuming the switch is operated on & off it would confirm that the "Live" conductor IS switched.

It would not fully confirm polarity as the 'N' & 'E' could be reversed, and this test reading, using a wander lead, would not identify it.

 
R1

Conformation of working switch & switched live.

Pretty much as SL says

 
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