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  1. B

    Lighting circuit puzzle

    It's all twin and earth so not quite out of the ark sparkwright, can only guess at junction boxes so probably on that score, and yes, same number of neutrals on the cu. The same number of lights go off I'm sure - but I'll re-check that. The three reds are all connected to the same fuse. It is...
  2. B

    Lighting circuit puzzle

    Thanks for all your replies guys. I used to work as a TV engineer before retirement so I know things are not always as they seem - and I'm also a convert to all aspects of Murphys Law (or Dumkoffs Law if your name is Murphy!) Yes, any one of the reds disconnected in turn and all downstairs...
  3. B

    Lighting circuit puzzle

    Thanks for your reply. Removing any of the three causes all the downstairs lights to stop working. I had thought that two would be radial as you say but three? Just a thought though , it might something to do with two of the switches working in tandem (you know the thing - either one or...
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    Lighting circuit puzzle

    I'm doing a renovation (aint we all!) and am rather puzzled by my lighting circuit. I have three red cables coming from the fuse (box) which feed the downstairs lights. I expected to see just the one red cable but three? Whichever one I disconnect, all downstairs lights cease to function. Any...
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