I hope I can explain this properly - here goes...
13A Fused spur in a metal clad box, surface mounted. 2.5mm PVC singles on the supply side entering the box. 2.5mm three core SWA on the load side leaving via a standard gland.
So - Line, Neutral & CPC in either side of the fused spur - easy.
CPC from the supply side into the lug on the back of the box.
CPC from the banjo on the gland into the load side.
The question is - the fused spur does not isolate the CPC as there is continuity through the box - does this matter, or is there something blindingly obvious I am missing??
Thanks.
13A Fused spur in a metal clad box, surface mounted. 2.5mm PVC singles on the supply side entering the box. 2.5mm three core SWA on the load side leaving via a standard gland.
So - Line, Neutral & CPC in either side of the fused spur - easy.
CPC from the supply side into the lug on the back of the box.
CPC from the banjo on the gland into the load side.
The question is - the fused spur does not isolate the CPC as there is continuity through the box - does this matter, or is there something blindingly obvious I am missing??
Thanks.