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Oil Tank.

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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?

Z.

 

Parents
  • 0

    On an EICR, I would give a code 2 for having two earthing systems in one building. There is likely to be a potential between the two under normal circumstances. 

    Regards,

    Alan. 

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  • 0

    On an EICR, I would give a code 2 for having two earthing systems in one building. There is likely to be a potential between the two under normal circumstances. 

    Regards,

    Alan. 

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