Ideally the farms need splitting into two groups with a separate
transformer for each, and I am sure United Utilities would do this
if they were allowed.

Farms (particularly livestock) shouldn`t be provided with a PME earth
under the supply regs. Its down to the individual farmers to provide
their own earthing arrangements. There *may* be some latitude where only
crops are grown.

I know of a case where a horse was killed by a fault on the wiring to a
stable because the owners didn`t have a proper earth.

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