2Gang 2Way Lighting Help

[No10ranger]

Both photos are the same.

oops sorry here is the other one my mistake


//media.diynot.com/217000_216565_74915_98393558_thumb.jpg

cheers

 

[sparkwright]

I take it in the first picture, left hand side, the brown in the common is from the 3 core+earth cable, and that the brown with the black wire goes to the wall lights?

 

[No10ranger]

I take it in the first picture, left hand side, the brown in the common is from the 3 core+earth cable, and that the brown with the black wire goes to the wall lights?

Yes that's correct the brown wire with the black tape around it is the switch wire for the wall light with the back wire running to the other switch

Cheers

 

[sparkwright]

Hmmm.

Looks in order. You've got the neutral for the wall lights from the ceiling rose. That's ok.

At the original switch, there's a 2 core with just red and black. Have you confirmed the red is the permanent live, and the black is the switched live (for the centre light)? A quick look in the ceiling rose (if that's what you have) should give an indication.

 

[EFLImpudence]

with ceiling lights on at the ceiling rose i get the following results

between N and L = 0v
between E and L = 244v
between N and SL = 244v
between E and SL = 0v

between E and SL = should (must) be 240V


All looks to be as it should be from the pictures.

As SUNRAY said above, have you connected the wall light Neutral to the SL at the ceiling?
This would mean when switched off, the ceiling light is in series and would be on dimly.
(assuming filament lamps, if not the wall lights would not work at all)
If you have not done this then I am at a loss

 

[SUNRAY]

HI EFLImpudence

Thanks again for the response here is my answer hope you can help from the results.

With ceiling lights in both off positions wall light work

with ceiling light off at the ceiling rose i get the following results

between N and L = 244v
between E and L = 244v
between N and SL = 0v
between E and SL =

(SL) = switch live wire

with ceiling lights on at the ceiling rose i get the following results

between N and L = 0v
between E and L = 244v
between N and SL = 244v
between E and SL = 0v

(SL) = switch live wire

Thanks Again

Graeme

working through your tests you have definately confused neutral and SL.

How are you being so certain you know which is neutral?

To double check,
Test between E and N, that must always be zero.
Between L and N must always be 240 v

 

[No10ranger]

HI EFLImpudence

Thanks again for the response here is my answer hope you can help from the results.

With ceiling lights in both off positions wall light work

with ceiling light off at the ceiling rose i get the following results

between N and L = 244v
between E and L = 244v
between N and SL = 0v
between E and SL =

(SL) = switch live wire

with ceiling lights on at the ceiling rose i get the following results

between N and L = 0v
between E and L = 244v
between N and SL = 244v
between E and SL = 0v

(SL) = switch live wire

Thanks Again

Graeme

working through your tests you have definately confused neutral and SL.

How are you being so certain you know which is neutral?

To double check,
Test between E and N, that must always be zero.
Between L and N must always be 240 v

Hi thanks again guys I will check ceiling rose again and take picture
You say between L and N must always be 240v I have posted before and said between L and N was 0v when lights are on which I found to be strange I thought the live should stay live at all times is thus correct?

Will check between N and E

Cheers

 

[EFLImpudence]

with ceiling lights on at the ceiling rose i get the following results

between N and L = 0v
between E and L = 244v
between N and SL = 244v
between E and SL = 0v

If you transpose N and SL:

between SL and L = 0v
between E and L = 244v
between N <--> SL = 244v
between E and N = 0v

It is correct so you must be thinking of them the other way around and have connected the wall light N to SL.

 

[No10ranger]

Will give a go and let you know the results

Thanks to all for input and your time and effort it's appreciated

Cheers

 

[No10ranger]

Big thanks again guys that's what the problem was the neutral and switch wire were mixed about at the ceiling rose.

The reason I thought the black wire at the ceiling rose was the switch wire is it had white tape around it and plus that's the way the old light that I remove was wired up so I just copied existing wiring.

Must say even got a bit of education out of this problem.



Thanks Again Graeme