matt.c
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| posted on 22/9/08 at 08:02 PM |
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Bathroom electrics help
I need to change the bathoom light switch but the new one is slightly different. On the old one there is 3 wires
1. Green/yellow = Neutral
2. Red = ?
3. Black with a red band = ?
I need to know which is live and earth?
Many thanks 
Image deleted by owner
[Edited on 22/9/08 by matt.c]
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Paul TigerB6
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| posted on 22/9/08 at 08:05 PM |
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Red is live. Prod it with a screwdriver and if you end up on your back on the landing then i was right!! 
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dogwood
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| posted on 22/9/08 at 08:05 PM |
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green yellow= earth
red should be live in
black with red band should be live out
to bulb
Depends who wired it up
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grazzledazzle
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| posted on 22/9/08 at 08:05 PM |
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Beaten to it.
What he said above.
[Edited on 22/9/08 by grazzledazzle]
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dogwood
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| posted on 22/9/08 at 08:07 PM |
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sorted
[Edited on 22/9/08 by dogwood]
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omega 24 v6
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| posted on 22/9/08 at 08:08 PM |
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No neutral at the switch.
green/yellow is earth
Red is live
Black with red flag is switch wire for light.
If you think the green /yellow is neutral I'd advise you to get a sparky to dothe job. I don't mean to offend but it really can be a
matter of life and death.
If it looks wrong it probably is wrong.
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f1ngers
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| posted on 22/9/08 at 08:09 PM |
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Like dogwood said.
Neutral is wired directly to the light fitting and you are just switching the live.
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maximill666
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| posted on 22/9/08 at 08:11 PM |
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Green/yellow is CPC (earth)
Red is switch feed (permanent feed down to switch)
Black with red sleeving is switch return (live feed to light once switch is turned on)
If you have a new switch then connect as follows:
Red to common (com)
Black with red sleeving to L1
Green/yellow to earth terminal
Regards,
Lee.
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dogwood
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| posted on 22/9/08 at 08:12 PM |
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Sorry couldn't resist
[Edited on 22/9/08 by dogwood]
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grazzledazzle
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| posted on 22/9/08 at 08:13 PM |
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Three times i've managed to connect myself to the mains due to some past dodgy wiring in places i've lived! Each time i landed on the
floor i thought i will never do that again... i'm still here.
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omega 24 v6
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| posted on 22/9/08 at 08:32 PM |
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IMHO the biggest danger with lights is people think they can switch the light off and then remove the ceiling rose (where sometimes the neutrals are
joined). When they do this they think everything is ok as the room they are in has the light off. However in another room a light may be on and the
path to neutral has been broken. They take hold of the neutral wire and voila it's a new hairdo and a lot of cursing if you're lucky. (or
worse MUCH WORSE)
[Edited on 22/9/08 by omega 24 v6]
If it looks wrong it probably is wrong.
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matt.c
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| posted on 22/9/08 at 09:15 PM |
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quote:
Originally posted by omega 24 v6
If you think the green /yellow is neutral I'd advise you to get a sparky to dothe job. I don't mean to offend but it really can be a
matter of life and death.
Opps yeh, Been along day.
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matt.c
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| posted on 22/9/08 at 09:18 PM |
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quote:
Originally posted by maximill666
Green/yellow is CPC (earth)
Red is switch feed (permanent feed down to switch)
Black with red sleeving is switch return (live feed to light once switch is turned on)
If you have a new switch then connect as follows:
Red to common (com)
Black with red sleeving to L1
Green/yellow to earth terminal
Regards,
Lee.
Ahh perfect.  Many thanks Lee and everyone.
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billynomates
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| posted on 22/9/08 at 09:23 PM |
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quote:
Originally posted by omega 24 v6
IMHO the biggest danger with lights is people think they can switch the light off and then remove the ceiling rose (where sometimes the neutrals are
joined). When they do this they think everything is ok as the room they are in has the light off. However in another room a light may be on and the
path to neutral has been broken. They take hold of the neutral wire and voila it's a new hairdo and a lot of cursing if you're lucky. (or
worse MUCH WORSE)
[Edited on 22/9/08 by omega 24 v6]
Permanent live conductors are joined there too. Very dangeroo.
And to who ever mentioned them, bulbs are what you plant in the ground (around this time of year as it happens). Lamps are what you put in the light
fitting.
[Edited on 22/9/08 by billynomates]
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omega 24 v6
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| posted on 25/9/08 at 10:47 PM |
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quote:
Lamps are what you put in the light fitting.
OOOH now your just being a bit Pendantic
Get it Get it
OK I'll get my coat.
If it looks wrong it probably is wrong.
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