Hi Marcus
Yes I have a rcd on the hot tub and also the socket has an rcd built in ,
Can I not use the armour of the swa cable as an earth or do I need to add a separate ground rod , if so where do I stop the earth from main supply
Hi
I want to put a socket about 40 metres down my garden , to run a lazy spa hot tub , I have bought 4mm armoured cable would this be sufficient and what mcb would be best a 20 or 32 amp
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