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6A lighting cct to supply a 13A socket

Farmboy
So, we all know about feeding lights from a socket cct, but would you do it the other way around, running on to a single 13A socket from a 6A lighting cct (which is wired in 1.5mm2, to run a few LED's) to supply a lawn mower and similar items? Somebody was given a quote to install the socket.


F
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    A few subtleties to consider...

    There is nothing to stop you fitting a light bulb to a 100A circuit as long as the cable can withstand the possible short circuit condition.



    If by a "light bulb" you mean something that fits into a the the usual sizes of BC or ES lampholders, then BS 7671 stipulates a maximum of 16A (559.5.1.204).

     

    Could you have a 20A/1.5sq.mm. (method C)  lawn mower circuit with some lights on it?



    You might also have to consider the (probably 6A rated) lightswitches on the circuit as well as the cables - even though they're not in the path to the lawnmower (or whatever) they and so overload isn't a worry, the still need to be protected from faults, using a higher rated OPD could undermine that. The rewritten section 536 in the 18th makes that requirement more explicit that it used to be.


      - Andy.
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  • 0
    A few subtleties to consider...

    There is nothing to stop you fitting a light bulb to a 100A circuit as long as the cable can withstand the possible short circuit condition.



    If by a "light bulb" you mean something that fits into a the the usual sizes of BC or ES lampholders, then BS 7671 stipulates a maximum of 16A (559.5.1.204).

     

    Could you have a 20A/1.5sq.mm. (method C)  lawn mower circuit with some lights on it?



    You might also have to consider the (probably 6A rated) lightswitches on the circuit as well as the cables - even though they're not in the path to the lawnmower (or whatever) they and so overload isn't a worry, the still need to be protected from faults, using a higher rated OPD could undermine that. The rewritten section 536 in the 18th makes that requirement more explicit that it used to be.


      - Andy.
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