Ceiling Rose - Wiring Help?

[mdrive]

Hi All

Hoping someone can point me in the right direction:

Ceiling Rose on a landing - switched from ground floor and another on the landing

Two cables from the ceiling - one contains Green/Red, the other Green/Black

Switch on the landing has Common, LI and L2 and is wired Red L1 and Black L2.

New light fitting had Live, Neutral and Earth.

I think this is called a loop switch, so I bought a new fitting for the light that has Neutral, Live and Loop. But how do I wire it up?

any help appreciated

md

 

[ProDave]

Post a photo of the existing light. Don't disconnect ANYTHING until you have documented exactly how it was.

You should not need to change anything at the light switch.

I would say both greens to light fitting E, red to L and black to N

but your description of the cables is confusing, do you realy mean you have two cables, each one being a 2 core cable?

 

[Barx]

sounds like it is wired in older double insulated singles. So yes, one with red and green, other(s) black. Sometimes you find blacks with earth and sometimes not. The fact that you only have 2 makes it easy. As mentioned above, black to N, red to L and the greens are cpc (Earth).

That is, unless the property is wired backwards :innocent

 

[kerching]

Sheathed/Insulated singles and earth.....I remember it well!

Even the earth was insulated for its entire length I seem to recall.F early 70s at a guess

Just getting older...

 

[Barx]

Sheathed/Insulated singles and earth.....I remember it well!

Even the earth was insulated for its entire length I seem to recall.F early 70s at a guess

Just getting older...

No idea mate. I'm an 80's baby...

...just saying...

 

[SLIPSHOD & SLAPDASH]

Or it could be a bodge where the Tw&e has had cores cut off. Live from the switch, neutral (possibly shared) from elsewhere ?

 

[Blue Duck]

Post a picture

 

[mdrive]

Thanks for all your responses. Computer says no ! Must have 10 posts to post a link on this forum...

Thanks for all your responses. Computer says no ! Must have 10 posts to post a link on this forum...

Post a photo of the existing light. Don't disconnect ANYTHING until you have documented exactly how it was.

You should not need to change anything at the light switch.

I would say both greens to light fitting E, red to L and black to N

but your description of the cables is confusing, do you realy mean you have two cables, each one being a 2 core cable?

Yep...two cables in white sheaths. 

 

[a3]

You can post pictures now

 

[kerching]

If its white sheaths then it sounds like *******ised twin and earth.

Is the earth sleeved or insulated?

I would hazard a guess that the light also has a borrowed neutral.........feed from ground floor switch, switch wire from upstairs switch, neutral from upstairs circuit. I may well be wrong.....see present wife for details

Just guessing...

 

[mdrive]

If its white sheaths then it sounds like *******ised twin and earth.

Is the earth sleeved or insulated?

I would hazard a guess that the light also has a borrowed neutral.........feed from ground floor switch, switch wire from upstairs switch, neutral from upstairs circuit. I may well be wrong.....see present wife for details

Just guessing...

White sheath - earth wires are both insulated...got a nice picture but cannot post it here. 

You can post pictures now

Thanks

Here we go:

http://s20.postimg.org/9w7ioyl5l/2013_03_29_12_38_17.jpg shows the cables from the ceiling

Shows the fitting I bought with  Live, Loop and Neutral connectors

http://s20.postimg.org/tfgpc29ax/2013_03_29_12_38_43.jpg

If its white sheaths then it sounds like *******ised twin and earth.

Is the earth sleeved or insulated?

I would hazard a guess that the light also has a borrowed neutral.........feed from ground floor switch, switch wire from upstairs switch, neutral from upstairs circuit. I may well be wrong.....see present wife for details

Just guessing...

This sounds about right...

 

[septiclecky]

No idea mate. I'm an 80's baby...

...just saying...

All it is, is a 6241Y where T & E is 6242Y and 3core & E is 6243Y

Not rocket science it is still made today

 

[Doc Hudson]

White sheath - earth wires are both insulated...got a nice picture but cannot post it here. 

Thanks

Here we go:

http://s20.postimg.org/9w7ioyl5l/2013_03_29_12_38_17.jpg shows the cables from the ceiling

Shows the fitting I bought with  Live, Loop and Neutral connectors

http://s20.postimg.org/tfgpc29ax/2013_03_29_12_38_43.jpg

This sounds about right...

Just put your red in the 'L'ive, Black in the 'N'eutral and green/yellows in the 'E'arth. leave the loop unused.

(the earth wires are bare conductors that are sleeved not insulated)

Doc H

 

[SLIPSHOD & SLAPDASH]

Or it could be a bodge where the Tw&e has had cores cut off. Live from the switch, neutral (possibly shared) from elsewhere ?

   :innocent

 

[kerching]

White sheath - earth wires are both insulated...got a nice picture but cannot post it here. 

Thanks

Here we go:

http://s20.postimg.org/9w7ioyl5l/2013_03_29_12_38_17.jpg shows the cables from the ceiling

Shows the fitting I bought with  Live, Loop and Neutral connectors

http://s20.postimg.org/tfgpc29ax/2013_03_29_12_38_43.jpg

This sounds about right...

Looks to me like the earths are not insulated BUT. Over sheathed with green and yellow earth sleeving AND if you look closely the cut on the side of the sheath is at an angle. I would wager a slap up tea at Mrs miggins pie shop that if you pull back the sheath ( ooooh errr missus ) that the ' other' conductor will be lurking beneath

Just being Sherlock Holmes ...

 

[batty]

My computer says no it doesn't like those pics blocked by antivirus software.