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Thread: Question for an electrician..

  1. #1
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    Default Question for an electrician..

    ..just moved into a new house and have noticed that the outdoor lights (each being a 20w CFL's, 3-off) are not running from a fused spur and are all 'daisychained' together.

    Is this OK? All the outdoor lights I can ever remember using have been of a fused spur, and not daisychained?

    Thanks in advance

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    Hi, I'm not an electrician but I do know that if it ain't running off a fused spur then you need to know what fuse (or mcb) is protecting the circuit. If its running straight off a ring main then its the ring main MCB protecting it which is usually 16 amps if I recall. That's way too much.
    One way to find out whats protecting the circuit would be to turn on your outdoor lights and flick off your MCB's one at a time and see when your lights go out. If its wired to your lighthing main then it should be ok.
    As a footnote I installed and wired in mains lighting on my caravan decking via the fuseboard lighting ring and have had no problems. All the lights operate via one remote control keyfob switch and the circuit is in parallel. Hope this helps. Sorry if it seems like I'm waffling a bit, its stupid o'clock in the morning and I need to get some Zzzzzzz....

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    North West Regional Organiser paulvectrac's Avatar
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    A daisy chain as u call it is correct and also if u don't have a spur it's relying on the breaker to trip out if any thing goes wrong
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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    Administrator Big-Pete's Avatar
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    You might want to verify which circuit is supplying the outside lights as its not uncommon for diy'ers to put outside lights on either the downstairs or upstairs ring circuits which will be 32A, and that amongst other things will exceed the cable capacity of a 1.5mm cable..

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    Regular Member redross555's Avatar
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    Default

    If the are connected into the ring main they MUST be via a fused spur unit,establish whether they are in with the sockets or on their own circuit.

    If they are in with the sockets find where the are connected into and add in a fused spur unit.

    If they are on their own circuit check the size of cable and ensure they are protected by an appropriate mcb/fuse etc.

    1.5mm2 cable=no bigger than 10 amp
    2.5mm2 cable=no bigger than 20 amp

    As for the "daisy chain" this is perfectly acceptable,lighting is normally wired in a radial circuit.

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    Thanks everone for the detailed responses. been busy doing other things today so will do the suggested turn light on and switch off at fusebox to see whats going on

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    New Member SuperT's Avatar
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    I am an Electrician, and all the advice from above is pretty spot on. If you need any other advice just PM me.

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    North West Regional Organiser paulvectrac's Avatar
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    i am also a spark
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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