I've done an EICR this morning, all in perfect condition, apart from two Code 3's, a plastic CU, and a boiler supply on a 1mm T+E cable.
I've marked it as a '3', as Table 52.3 says a 'power circuit' , should be supplied by a minimum conductor size of 1.5mm.
This circuit is protected by a 6 amp, type B circuit breaker, and further on, a 3 amp BS1363 fuse.
So there is no safety issue at all.
Has it ever been explained why this table has been included, and why these figures are used?
