- Reaction score
- 95
I was asked to check electrical work in a mates garage, workshop, office,and valet bay. both the sub boards in the office area and valet area are fed from 40a mcbs to sub boards using 10mm t&e . Would i class the supplies as final circuits as fed from mcbs at the main dist board as trying to work out if cpc in t&e adequate to supply sub board. Am I overthinking this he has just purchased this building and it was rewired for previous owner and the install is decent and test readings all acceptable inc zs at sub board circuits. But I have this nagging in the back of my mind telling me the earth to the sub boards should be 10mm same as line and neutral.
As I said empty head or over thinking this
cheers
As I said empty head or over thinking this
cheers