how far do you allow a cable to run before you will derate the cable.
most CU's i have seen have the cables incoming all bunched and should as far as i can see technicially be derated but i guess you use some common sense here and say if its less than x then dont bother?
have i missed some guidance in the book or am i correct, if so how much do you allow and is this the only case where you dont do it?
most CU's i have seen have the cables incoming all bunched and should as far as i can see technicially be derated but i guess you use some common sense here and say if its less than x then dont bother?
have i missed some guidance in the book or am i correct, if so how much do you allow and is this the only case where you dont do it?