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wiring a ceiling rose - 3 black cables from ceiling?!

Posted: Thu Oct 01, 2009 5:13 pm
by Jungle Jen
I would like some advice on wiring a ceiling rose, I have checked the projects pages but... I only have 3 all black cables descending from the ceiling. How can I find out which is which?

Posted: Fri Oct 02, 2009 1:38 pm
by steve the plumber
This is what you need: ... itting.htm

If the switch is not clearly labelled then trial and error. If the light is upstairs, climb up in the loft and trace the switch wire.

Posted: Fri Oct 02, 2009 8:16 pm
by sparx
Hi, this is when you need to be a 'Sherlock Holmes'
probably the other circuit cables, (3 Reds & 3 earths) are tucked up in ceiling.
what you have is 2 neutrals which go to blue flex end of rose + 1 switched live which would have been on its own & should go to brown flex end of rose, this should have red sleeve/tape on it.
It may be possible by examination to see 2 that have been twisted together or 1 that was on its own, if not and as has been suggested visual check not possible then continuity test from switch to each in turn will show switch line,
Always work on dead circuit and if unsure please get help, it should take no more than 1/2 hr for leckie to fix.
regards Sparx