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Outside light

Posted: Tue Oct 07, 2008 3:38 pm
by BobAjob2
Might be a daft question this one, but, can I rig up an outside light, just drill through the wall, feed cable through, fit a 3 pin plug and leave it plugged into an existing socket?

Posted: Tue Oct 07, 2008 9:14 pm
by davey_erm_dave
Yes you can, i have an outside light at the front of my house which is wired the same way. i have just purchased one for the rear and plan to do the same thing.

Re: Outside light

Posted: Tue Oct 07, 2008 11:13 pm
by BLAKEY1963
[quote="BobAjob2"]Might be a daft question this one, but, can I rig up an outside light, just drill through the wall, feed cable through, fit a 3 pin plug and leave it plugged into an existing socket?[/quote]

BOBAJOB2
IF u look at implications of part p for outdoor work and
register with labc.

BLAKEY1963

Posted: Tue Oct 07, 2008 11:25 pm
by ericmark
There are two regulations to check Part P and Part L there is a link in projects to Part P and from that you should also find Part L.
I think you are OK with Part P mounting on the wall like you say but worth checking and I think Part L limits size and switching methods think has to be less than 150 watt and needs some method to stop it running 24/7 but don’t know off hand limitations.
Electrical I see no problem.
Eric

Posted: Wed Oct 15, 2008 6:13 pm
by androo
Hello

I am trying to wire an outside security light from an existing interior light switch. I've changed the single switch for a double but I'll be blowed if I can get it to work!!

I know it's only a question of wiring the thing correctly as I did it in a previous house.

If I stick a 13amp plug on the end and plug in to a socket it works no problem.

The light is 150watt

Any help appreciated

Posted: Thu Oct 16, 2008 12:00 am
by Sara H
Bobajob2 - Any circuit that runs outdoors should be protected via an RCD as described within the regs. You can run the light from a socket but I would suggest the socket is changed to an RCD version or you purchase an RCD trip plug and plug your 3 pin plug in that way. To over come the issue of wasting energy and ensuring it is not on 24/7 perhaps a photocell or IR unit can be incorporated as a switching device.
HTH

Sara

Androo - The reason your outside light is not powering up is simple there is no neutral or complete circuit for it to work. Whilst a light switch may have a red and black or possibly a brown and blue cable going to two terminals these are not Live and Neutral. One is Live (Common) and the other your Switched Live (L1). By jumpering from the two on the rear of the switch (I assume that is what you are doing) there is no neutral and hence an incomplete circuit. The reason why it works from a 13a plug is becuase you are connecting one cable to the neutral and one to the live and if outside I would imagine an earth too. This forms a circuit and hence your light illuminates.

HTH

Sara

Posted: Thu Oct 16, 2008 7:37 am
by ericmark
androo there is no neutral in most light switches you must wire to sealing rose. See http://www.ericpalmer.fsnet.co.uk/Lighting.html to see how lights are wired.
Eric

Re: Security Light

Posted: Sat Nov 01, 2008 5:26 pm
by androo
My apologies for not responding earlier. Many thanks for the replies.
Problem is, trying to get a nuetral wire to the light switch. There is nothing reasonable accessible. I think my solution is, to put a plug on the cable and do it that way. Not as neat a job. But at least I'll have the light working.... :cry:


Thanks

Androo