Two things that I have seen but not really noticed until recently!
There is an earth terminal on the back of the socket face of a metal clad socket along with a live and neutral terminal. There is also an earth terminal on the inside of the metal clad socket back box. Should the earth terminal...
The garage is 17 mtrs x 15 mtrs in the UK
The house has a 100 amp supply to the house consumer unit.
The garage consumer unit is fed from a 63amp RCD to a 40 amp B rated mcb in the house consumer unit.
The feed cable to the garage is 10mmsq SWA 3 core with the swa bonded to the earth...
