by kbrownie »
Fri Aug 14, 2009 5:32 pm
daviechristie,
I can only assume when you say 3 sets of wires you mean.
3 Reds or browns (line/lives)
3 blacks or blues (2 neutral and switch wire)
3 Green&yellows (cpc/earth)
So this would mean you have a incoming supply a switch feed and return and an out going feed.
So something else is installed on this circuit, we need to find out what before we make it live.
So that's your first job.
Likely to be another light on circuit, could be an outside light.
After you have indentified where the out going feed is going to and it is safe to connect.
Follow this:
All 3 line conductors(reds or browns) terminated together in plastic termination bloke with nothing else.
All 3 cpc/earth conductors connected to earth terminal on fitting
Thats the easy bit done; we now have 3 conductors left all the same colour(black or blue) one should be flagged or sleeved red or brown this is your switch wire,
the other two are neutrals. but alas I fear this may not have been done.
So a little bit of swapping about will be needed,
Cable with flag to Live terminal on fitting, if we have one and two remaining cables to neutral terminal on fitting.
If we have no flagged cable we can place two of the remaining conductors in the neutral terminal of fitting and the other in live terminal of fitting.
Then try it, if it fails to work. Swap one of the conductors in the neutral terminal for the one in the live terminal and try again and do this until you get the right combination. Once you have the right combination make the switch wire up for next time.
remember never work live, isolate that circiut prior to working on it.
A picture paints a 1000 words useful link
https://www.diydoctor.org.uk/projects/re ... itting.htm
KB
PS. if this is not the combination of conductors or core colours of cables reply with them or if you are unsure of instruction again reply don't be getting hurt or starting fires