John Peckham:
In your diagram the earth resistance at the farm needs to be very low and the earth resistance of the transformer electrode a lot higher in proportion to get a 187V rise and that assumes any PME electrodes are not there or also very high resistance.
Who said anything about PME? It could well be a TN-C-S version of PNB, or anything else which the DNO fancies. If there are multiple earths, why are they not pulling down the local ground potential?
John Peckham:
In your diagram the earth resistance at the farm needs to be very low and the earth resistance of the transformer electrode a lot higher in proportion to get a 187V rise and that assumes any PME electrodes are not there or also very high resistance.
Who said anything about PME? It could well be a TN-C-S version of PNB, or anything else which the DNO fancies. If there are multiple earths, why are they not pulling down the local ground potential?
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