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Outside light off lighting circuit

Discussion in 'Electrics UK' started by RobTi, 18 Jun 2021.

  1. RobTi

    RobTi

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    Hi can I run an outside carriage type with pir at my door off the lighting circuit?
    Thanks
     
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  3. sxturbo

    sxturbo

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    Need to locate the permanent live and take a fees from it.
     
  4. RobTi

    RobTi

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    Got the ceiling opened at the old rose as I was dropping a neutral to the switch for a smart relay anyway and just thought to ask if it was possible. So 1mm or 1.5mm dropped down ?
    Thanks
     
  5. bernardgreen

    bernardgreen

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    yes but it is advisable to put a double pole isolator in the supply to the lamp.

    Then if ( when ) the lamp develops a fault that trips MCB and / or RCD the lamp can be isolated and then the lights in the house will be useable ( after the MCB / RCD has been reset ).
     
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  6. RobTi

    RobTi

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    Thanks so a double pole isolator switched fuse spur be okay ?
     
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  8. AndyPRK

    AndyPRK

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    so as you have a neutral at the switch now, I would take the feed from there, as said its usful to fit an additional switch there, so that a. you can turn it off, b. as an override function.

    You also need to ensure You have a live at the light switch (it possible if its 2 way wiring, of an old style you may not have)


    A double pole isolator or switched fuse spur would also be ok, say, if you wanted to fit it higher up, and so it doesn't get touched accidently
     
  9. bernardgreen

    bernardgreen

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    Yes

    A bit of future proofing would be to use 3 core and earth cable to the lamp ready for up-grading to full remote override of the PIR by adding the ON switch and red wire in this circuit.

    pir overide single unit.jpg
     
  10. RobTi

    RobTi

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  11. Harry Bloomfield

    Harry Bloomfield

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    You can use that switch fed with your L+N at your existing switch. You may need a separate enclosure and faceplate for your new switch.
     
  12. RobTi

    RobTi

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    Many thanks let’s me know, I was ready to drop another supply down and then had a moment to think that I had already dropped one down so will just get a 3 gang faceplate and fit the modules in it.
    Thanks to everyone for the help
     
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