Sorry to ask another question about outbuildings, but I can't find an answer.
Is it mandatory to have an earth spike to earth a detached garage that is supplied from the house CU?
Reason I ask is because I am planning to have a small CU installed in my garage to replace an older fusebox in the garage. Electrician says that I must have a spike driven into the ground by the garage to earth it and not rely on the earth supplied from the cable from the house - as it is at present.
A few other details:
Garage is detached and only 3 metres from the house at closest point.
Supply to garage is underground cable in conduit ("toughened" I believe, but not SWA)
Garage circuit is RCD protected at house CU, supplied by 20A mcb.
Garage does NOT have any water supply.
House supply is bog standard - TNCS I believe?
Garage will run just standard stuff - Fridge, lights, a few power tools when needed.
Any advice would be appreciated. Thanks.
Is it mandatory to have an earth spike to earth a detached garage that is supplied from the house CU?
Reason I ask is because I am planning to have a small CU installed in my garage to replace an older fusebox in the garage. Electrician says that I must have a spike driven into the ground by the garage to earth it and not rely on the earth supplied from the cable from the house - as it is at present.
A few other details:
Garage is detached and only 3 metres from the house at closest point.
Supply to garage is underground cable in conduit ("toughened" I believe, but not SWA)
Garage circuit is RCD protected at house CU, supplied by 20A mcb.
Garage does NOT have any water supply.
House supply is bog standard - TNCS I believe?
Garage will run just standard stuff - Fridge, lights, a few power tools when needed.
Any advice would be appreciated. Thanks.