Hi guys im after a bit of help please.
if im running a 4core 25mm armoured to a three phase distboard do i need a seperate earth to go with it or can i use the armourings???
i thought you had to run a seperate earth half the size of the cable so a 16mm earth.
all cable calcs say u need a seperate earth so im confused
is there any regs on this please???
thanks in advance.
no replies
