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PostPosted: Tue Oct 24, 2017 12:04 pm 
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Hello, hopefully this is an easy one.

All I want to do it wire an external PIR security light like this one https://www.screwfix.com/p/luceco-guardian-slimline-led-pir-floodlight-black-15w/9309k to the back of my garage

My electrical set up is in the attached files. There is a double socket with a fused spur (?) to the left (13A). A cable runs vertically from this box to a switch above. From the switch there exits two cables, one for the main garage light and one for another security light to the back of the garage. The switch is wired as follows: The cable into the switch - Live goes into the L1 and the earth and neutral are terminated with the live and neutral of the exiting cables into terminal blocks. The live for the garage light also goes into the L1 and the live for the old security light goes into the L2. When I turn off the switch the garage light remains on but the security light goes off.

Could I run another cable from this switch to the new security light (there is another hole in the top from a previous light I think). I presume I can terminate the neutral and earth with the other cables but does the live go in the L2?

Also, what spec of cable should I use? It will all be internal to an internal junction box to join with the pre-attached cable from the security light.

Many thanks for your help!


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PostPosted: Tue Oct 24, 2017 10:18 pm 
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You should use 1mm T + E cable, you should connect it to the fused side of the fused connection unit (not the switch)

Just out of interest (or not) that switch is called a 1 gang 2 way switch.

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PostPosted: Wed Oct 25, 2017 10:25 am 
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That's great, so just run a cable from that fused connection unit and bypass the switch. Just so I know, why do you think a switch was put there? It seems to serve no purpose to me but there is probably a good reason.

Many thanks.


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PostPosted: Wed Oct 25, 2017 7:26 pm 
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:dunno:

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Take it easy, a forum is only a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link. to find out more.

No such thing as "Thou shalt put this wire here, Thou shalt put that wire there" .............Take a picture BEFORE you do the job.

If gloom had a voice, it would be me. :mrgreen:

:idea1: How to post a picture on this forum Click here


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