So, having completed the replacement of the mcb in my consumer unit with RCBO's I cracked on with testing and hit an issue with the lighting circuit.
Everything tests out fine - with the exception of the Line-Neutral IR test, which tests out as 0MOhm at 250V. Doing a continuity measurement reveals a Line - Neutral resistance of 175 Ohm.
I've managed to isolate the issue to the bathroom, but am at a loss to explain what's causing it. I've disconnect the switches, isolated and then disconnected the Fan but i can't get rid of this 175 Ohms. The only hypothesis i can come up with that makes sense is that the dimmable transformers must be permenantly wired in to Line & Neutral, with a seperate line from the dimmer switch to control the lights. Does that make sense ?
I'd like to get the lights out from the bathroom to see what's up there but am struggling to get the out.
Everything tests out fine - with the exception of the Line-Neutral IR test, which tests out as 0MOhm at 250V. Doing a continuity measurement reveals a Line - Neutral resistance of 175 Ohm.
I've managed to isolate the issue to the bathroom, but am at a loss to explain what's causing it. I've disconnect the switches, isolated and then disconnected the Fan but i can't get rid of this 175 Ohms. The only hypothesis i can come up with that makes sense is that the dimmable transformers must be permenantly wired in to Line & Neutral, with a seperate line from the dimmer switch to control the lights. Does that make sense ?
I'd like to get the lights out from the bathroom to see what's up there but am struggling to get the out.