loz
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- Joined
- Jun 4, 2011
- Messages
- 48
- Reaction score
- 20
changing a fuse board today, house wired in the 60s with the landing light on the ground floor lighting circuit.
Tested at 250v ins res between the neutral of the 1st floor lights and the neutral of the ground floor lights. Result was 0.04meg ohm. Flick switch for landing light and the reading jumps to >200meg ohm.
Am I right in my thinking that this is a borrowed neutral?
In my head I can see the test voltage going up the upstairs lighting neutral, through athe landing lamp, down the live through a lamp one the ground floor circuit then returning back down the ground floor neutral
Tested at 250v ins res between the neutral of the 1st floor lights and the neutral of the ground floor lights. Result was 0.04meg ohm. Flick switch for landing light and the reading jumps to >200meg ohm.
Am I right in my thinking that this is a borrowed neutral?
In my head I can see the test voltage going up the upstairs lighting neutral, through athe landing lamp, down the live through a lamp one the ground floor circuit then returning back down the ground floor neutral