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Loop in ceiling rose wiring
Anonymous user 28/02/2024 - 3.43 PM
I stupidly disconnected the old rose without noting where the wires went. There are two incoming flexes but one has 4 wires, the extra one is yellow. With that light disconnected the light in the room downstairs (added extension) is also dead so I assume the yellow is loop wire to add in that downstairs light. So my question is which block does the yellow go into? Live, Neutral or L? I bought a rose with sufficient capacity in the block same as the old one. I'm moderately capable but this one has me flummoxed. Why did I not note the original scheme? A senior moment? Probably with the old rose fused none of the upstairs lights worked and I wanted it off and the wires covered so I could have some lights. I have a decent multimeter, not a cheap one, will that do? What do I do with it? All wires disconnected, ends covered with insulation tape but live so testing should not be difficult. House deeds say the extension was unconsented, made legal post facto so diy is likely. I agree should have been done at switch but I suspect logistics on where the cables could run required the bodge. Easier to do from the rose than the switch. I am on Universal Credit and in no way can I afford an electrician. Which is why I asked on here instead. I have a good multimeter, what do I test with it and under what conditions? The extension was at least 10 years old when we bought the place 20 years ago so it has been perfectly fine for 30 years so don't quote a BS which postdated this build as that is not exactly helpful is it? I have looked at the switch (worst face plate screws in the house) and two red wires go into one terminal, the yellow wire goes into the other one. A blue wire is connected to a black wire with a connection block and the earth wires are earthed. So, the yellow wire is a switch wire, where does it go in the ceiling rose block? Since the red wires have to go into separate blocks in the ceiling rose the yellow wire will have to therefore go into the other block as there are only three blocks or either the switch will not work or it will short. A critique of that logic please. The switch wire is necessary because the ceiling rose acts as a junction box for the power to the kitchen light because firstly that is by far the simplest way to run it and secondly because being a flat roof it would be both non standard and inaccessible to put a junction box in the ceiling as you would if it was a pitched roof with access. So far from being a bodge it is in fact quite logical. @K-Electric, thankyou very much. I shall proceed on that basis as it accords with my assessment as well. Thanks for taking the time to respond. @K-Electric that's got it thank you very much. I had to wait as I had injured myself running etc. The light in question works and so does the kitchen light downstream of it. All systems go.
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4 Answers
Internal Repairs
K-Electric
Buds Electrical
100%Electric (Renewables)