Single wire, switched live.

[sykesit]

Hi I am adding a few picture lights to my room before plastering. I have an existing switch with usual live, switch live and earth.

As will be making this a double switch I was just going to jump to second com and the bring 1 switched live up to the lights and get the neutral and earth from nearby light fitting.

Can I run single wire as hard to find them with full sheeting or just run 1.5mm twin earth and leave the neutral cut off?

Thanks

 

[EFLImpudence]

Hi I am adding a few picture lights to my room before plastering. I have an existing switch with usual live, switch live and earth.

Ok.

As will be making this a double switch I was just going to jump to second com and the bring 1 switched live up to the lights and get the neutral and earth from nearby light fitting.

Can I run single wire as hard to find them with full sheeting or just run 1.5mm twin earth and leave the neutral cut off?

You could use single and earth but no point use 1mm² T&E, it will be more than adequate. Don't cut off the Neutral; just terminate it safely.

As you appear to be installing cables in both the appropriate areas - light to light and light to switch - why not wire it normally?

 

[sykesit]

Not sure what you mean by normally?

Normally a permanent live, neutral and earth runs main light to main light. From that permanent you run that to the switch and then back to the light as switched live.

So your saying use a junction box from main live, neutral and earth. The brown send live to switch, blue becomes permanent live back up and earth is earth. I would have 4 terminals then in the junction, permanent live, switched live, earth and neutral.

Thanks

 

[EFLImpudence]

Normally a permanent live, neutral and earth runs main light to main light. From that permanent you run that to the switch and then back to the light as switched live.

Yes, and you are thinking of running a neutral and earth to the new light so just use T&E and you can run -

Line(live) or switched line depending on location with a new switch cable from whichever light you were going to use.

So your saying use a junction box

Or rose or connectors or whatever you decide.

from main live, neutral and earth. The brown send live to switch, blue becomes switched live back up and earth is earth.

Yes - as is normally done.

I would have 4 terminals then in the junction, permanent live, switched live, earth and neutral.

So?

 

[sykesit]

Yes, and you are thinking of running a neutral and earth to the new light so just use T&E and you can run -

Line(live) or switched line depending on location with a new switch cable from whichever light you were going to use.


Or rose or connectors or whatever you decide.


Yes - as is normally done.

So?

No the 4 terminals was just an observation.

Thanks