Tripping rcd | Page 3 | on ElectriciansForums

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NeonSparks

just moved an mcb to rcd side of board and now a lighting radial on NON rcd side trips rcd...any ideas? I'lm sure i have moved correct wires.
 
think it could be put more simply. all are talking of a borrowed neutral, but i would rather call it a borrowed live. the landing light is upstairs, so is on the upstairs lighting, but only as as regards the neutral, but has " borrowed " the live from downstairs. therefore, if you isolate the upstairs, you still have a live from downstairs to the landing light.
 
think it could be put more simply. all are talking of a borrowed neutral, but i would rather call it a borrowed live. the landing light is upstairs, so is on the upstairs lighting, but only as as regards the neutral, but has " borrowed " the live from downstairs. therefore, if you isolate the upstairs, you still have a live from downstairs to the landing light.

That's a better way of looking at it!
 

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