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Table 52.3. Could someone explain it to me, again, please!

alanblaby
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?
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  • 0
    Yes, I looked at this and couldn't come to a logical conclusion (mechanical protection, high Zs etc) other than some diplomatic fix.

    I would have thought that a shortish circuit length, secured and mechanically protected, plus the use of a distribution board 6A fuse/mcb with local isolation and a possible 3A cartridge fuse warrents a code 3 at worst......until it comes to filling out a landlords certificate and then you're entering the land of the pedants and the jolly jobs worth territory.

    Legh
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  • 0
    Yes, I looked at this and couldn't come to a logical conclusion (mechanical protection, high Zs etc) other than some diplomatic fix.

    I would have thought that a shortish circuit length, secured and mechanically protected, plus the use of a distribution board 6A fuse/mcb with local isolation and a possible 3A cartridge fuse warrents a code 3 at worst......until it comes to filling out a landlords certificate and then you're entering the land of the pedants and the jolly jobs worth territory.

    Legh
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