trunking double sets

[blackiel]

Aint done no site work for years,but my last site work was 16th edition,and a separate CPC was run for everything,Conduit,trunking,etc was only classed as equipotential OR extraneous,Not classed as main earthing....Has this changed with the 17th???

 

[davelerave]

Aint done no site work for years,but my last site work was 16th edition,and a separate CPC was run for everything,Conduit,trunking,etc was only classed as equipotential OR extraneous,Not classed as main earthing....Has this changed with the 17th???

we run all separate CPC here(ROi)

the trunking/conduit will still take the majority of fault current regardless - due to parallel fault path

 

[blackiel]

Yeah,of course,youre right,never did take a lot of notice of what i learned at college,thats why this sites a godsend!!!