R
Reg Man
I have to run a 70mm SWA sub circuit over a distance of 70metres in a 4in duct under ground. The cable will run from the main incoming electricity boards supply (busbar after meter). I know I will need an isolator at the front but do I need an RCD also, like a 100mA time delay???
Current being drawn will be around 120A max. The install is on a farm and the supply is a 200A CT monitored single phase TNS supply.
If anyone can point me in the right direction regarding the correct chapter in the regs it would help, if its the case I need the RCD!!
Current being drawn will be around 120A max. The install is on a farm and the supply is a 200A CT monitored single phase TNS supply.
If anyone can point me in the right direction regarding the correct chapter in the regs it would help, if its the case I need the RCD!!