My new abode is currently TT with a reported Ze of 190 ohms. It's sitting on granite and the prospect of driving in multiple rods is not particularly appealing (which, presumably, is why we haven't been able to locate from the previous owner). I've contacted WPD and they confirm that PME is available. Is there any reason why I would not accept it? (Apart from the fact that WPD want to charge £163.03 whereas my previous DNO did it for free!) We're very rural and the supply is overheads with a pole mounted tx in the garden.
Firstly does the 190 ohms cause you any problems ? You may not need to do very much assuming RCDs and so on are operational.
If there is no discernible earthing, it may be using water pipes and so on, but then actually I'd expect a lower figure, though it may be at least partly the electrode at the pole pig transformer that is contributing to the reading. I presume the transformer is not just for you - if it is it will end up as PNB anyway. Can you see how that earthing is done ?
I suppose drilling an electrode in is not funny, and probably pointless, but is there no soil cover at all ? A J" bent electrode or even one laying sideways in a trench can still be quite effective.
Unless you have outbuildings or plan to have an electric car you want to charge on the drive, then converting to PME makes sense in terms that writing a cheque is less work than installing an electrode..
Firstly does the 190 ohms cause you any problems ? You may not need to do very much assuming RCDs and so on are operational.
If there is no discernible earthing, it may be using water pipes and so on, but then actually I'd expect a lower figure, though it may be at least partly the electrode at the pole pig transformer that is contributing to the reading. I presume the transformer is not just for you - if it is it will end up as PNB anyway. Can you see how that earthing is done ?
I suppose drilling an electrode in is not funny, and probably pointless, but is there no soil cover at all ? A J" bent electrode or even one laying sideways in a trench can still be quite effective.
Unless you have outbuildings or plan to have an electric car you want to charge on the drive, then converting to PME makes sense in terms that writing a cheque is less work than installing an electrode..
