Help with a 21ohm Ze

[whatever]

Hi all I'm new to this forum so maybe this situation isn't unusual but I have just done an EICR ( I've not done many) on a one bedroom vacant flat. All checks out ok in the flat and the RCD trip times are well within limits but at the incoming TNS supply with a 25 mm earth clamped to the armour sheath I get a Ze of 21ohms so naturally none of the circuits comply with max Zs values. Is it the DNOs responsibility to fix this because surely I can issue a Satisfactory EICR!

 

[telectrix]

There is a Distribution board on the ground floor where the suppliers feed comes in, 3 phase and earth, that's where I measured the reading, that is a direct Ze reading of the suppliers cable where it enters the building so I figure the other two flats in the building will also have the same problem.

it's DNO's problem then. if they have supplied the earth, then they are obliged to maintain it.

 

[stevethesparks]

So in answer to your original question, you cannot give a satisfactory EICR