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Overload protection

MrJack96

If you have a 32 amp feeder feeding 4x 6 amps circuits feed in parallel is there something in the regs that states the cable between the 32amp fuses dosmt have to be rated for 32 amps as long as It meets certain condition? my thinking was as its limited to 6 amps upstream it’s unlikely to get overloaded.

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    yes, and you can have up to 3m even if the upstream protection would provide neither overload nor fault protection for the cable, and as much length as you like if the upstream does fault protection and overload is done downstream.

    If you do forgo the short circuit protection, do not do so willy nilly - the wire that will be acting as its own fuse needs to be routed / protected to that the chances of it doing so are small, and the consequential  damage that would occur if it did, is acceptable.

    Mike.

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  • 0

    yes, and you can have up to 3m even if the upstream protection would provide neither overload nor fault protection for the cable, and as much length as you like if the upstream does fault protection and overload is done downstream.

    If you do forgo the short circuit protection, do not do so willy nilly - the wire that will be acting as its own fuse needs to be routed / protected to that the chances of it doing so are small, and the consequential  damage that would occur if it did, is acceptable.

    Mike.

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