DIYFreak
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I've run some 2.5mm SWA out for garden lights. I chose 3 core, using the black as earth, because as an amateur sparky I wanted to absolutely sure of earth contunuity. and didn't want to rely on the armour. I've heard anyway that the armour degrades and loses its conductivity over time.
I'm fitting SWA glands and shrouds for entry into the weatherproof plastic JB's at each end. I'm assuming I don't need to worry about an earth tag (drilling through the box, inserting bolt for earth connection and reducing the IP rating of the box in the process), nor piranha earth nuts, given that I'm using one of the conductors as earth. Is that right?
Pretty sure I know the answer but I'm a cautious sort of bloke.
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