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Oil Tank.

Situation.

Double domestic garage. Inside at the rear is a large steel heating oil tank on blocks off a concrete floor at high level. A copper oil pipe runs down and underground across a passageway to the oil boiler in the house. Garage sockets and light TT earthed via a garage unit with a 30mA R.C.D. The garage earth electrode is about 1.5m from the buried copper oil pipe in the passage outside.

The house earthing system is TN-C-S. The copper oil pipe is main bonded at the house.

Are there any potential safety issues here?

Parents

0 Chris Pearson over 2 years ago

If the intention was that the garage should be a “TT island” then clearly it is not. The infamous PME lost neutral is, presumably, unlikely between the house and garage, so I would not worry about that.
What does concern me is having the oil tank INSIDE the garage. IMHO, garages are for the storage of motor cars, although I do appreciate that my view may be out-dated. ?
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0 Chris Pearson over 2 years ago

If the intention was that the garage should be a “TT island” then clearly it is not. The infamous PME lost neutral is, presumably, unlikely between the house and garage, so I would not worry about that.
What does concern me is having the oil tank INSIDE the garage. IMHO, garages are for the storage of motor cars, although I do appreciate that my view may be out-dated. ?
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Oil Tank.

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