Joined: 05 Aug 2004 Posts: 14 Location: United Kingdom Thanked: 0 times
Posted: Thu Aug 05, 2004 10:06 am Post Subject:
3 loop, 1 switch?:
I am trying to fit a ceiling rose - unfortunately, the original light fitting had been removed before we moved in. I have a two gang switch controlling the hall and outside light (1 way fitting).
However, at the ceiling point I have three grey cables (one red, one black in each) and a white cable from switch (1 red, 1 black, 1 earth) - the ceiling batten I have only has sockets for 3 red and 3 black and I have four of each. Help!
UPDATE - just to muddy the waters, the white cable and one of the greys appears to run from the switch - however, there is no sleeve tape on any of the wires at the ceiling to show which is the switch cable.
Joined: 28 Mar 2004 Posts: 6930 Location: United Kingdom Thanked: 15 times
Posted: Thu Aug 05, 2004 12:31 pm Post Subject:
you have cable without an earth?
if this is the case then your lighting cuircuit really should be rewired anyway
i would guess that the 3 grey cables are your normal cuircuit cables and switch cable and the white cable is a spur going to a juntion box from which another white switch cable and a cable to the light are run
Joined: 05 Aug 2004 Posts: 14 Location: United Kingdom Thanked: 0 times
Posted: Thu Aug 05, 2004 2:33 pm Post Subject:
This being the case I need to make this safe until I can get this rewired - any ideas how I can wire this setuo to a standard light batten (ie switch, 3 live, earth and 3 neutral)?
If its any help - the 2 gang switch has the normal black back box with LI, L2 and Common at both ends. The grey cable black is L1 (bottom), the grey cable red is in Common (top). The white cable red is in L! (top) and the white cable black is in Common (bottom) There are two earths at the switch.
Joined: 28 Mar 2004 Posts: 6930 Location: United Kingdom Thanked: 15 times
Posted: Thu Aug 05, 2004 3:15 pm Post Subject:
you need to find out which of the grey cables from the lighting point goes to the switch which means you need to test with a multimeter on its lowest resistance range (with power to the lighting cuircuit off ofc)
then connect as follows
all reds together in the central block of the pendant base
the black from the switch (which should technically be red sleeved) to the brown flex from the lampholder
the other 3 blacks to the blue flex from the lampholder
all earth wires to the earth terminal (generally one big bare metal terminal) in the lampholder
additionally if the outside light has any exposed metalwork run a peice of 4mm single earth from the lampholder earth terminal back to the earth block in the CU
this should make your lighting functional and reasonablly safe until you can get it rewired properly
Joined: 05 Aug 2004 Posts: 14 Location: United Kingdom Thanked: 0 times
Posted: Thu Aug 05, 2004 4:52 pm Post Subject:
Cheers - sussed out which is the switch cable.
I still have four red cables - one from switch, one from spur and two from loop - can I twist two of these together to fit three terminals, and, if so, which?
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