plugwash said:While not strictly nessacery its best practice to take the spur in the same size as the rest of the shower circuit.
plugwash said:pretty sure overcurrent protection can be downstream as long as short circuit protection is upstream.
i'm also pretty sure that modern breakers can provide adequate short circuit protection for short runs of cables with a far lower current rating than the breaker.
473-01-04 Devices for protection against overload need not be provided:
(ii) for a conductor which, because of the characteristics of the load or supply, is not likely to carry overload current
that would i presume cover a conductor with a fuse downstreamAdam_151 said:473-01-04 Devices for protection against overload need not be provided:
(ii) for a conductor which, because of the characteristics of the load or supply, is not likely to carry overload current
You then have to size your conductors and cpds in accordance with 434-03-03 (the adiabatic), as 434-03-02 no longer applies
plugwash said:i guess 434-03-02 is a rule of thumb? care to spell out exactly what it says i don't have the regs handy.
you also have to consider that the cutout fuse will have a maximum letthrough too.
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