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The electric company (UKPN) are due to come and move our meter and install a new supply on Friday. I am installing a local earth rod - not quite sure why though, see image below. As things stand we have an overhead supply from a pole on our land. It is a TT supply to the old house, we have an earth rod providing the earth local to the old meter position. The other houses on the pole seem to have an earth provided by rather poorly connected earth rod at the base of the pole. When they come on Friday I think I am expecting them to provide a PME (TN-C-S) supply, just like our neighbours, which uses the earth rod at the base of our pole. Are they allowed to give new properties (this is a knock down and start again project) TT supplies? Given the regs I have decided to provide a commando socket to power up stuff outside (it is not designated as a site supply), although might be used on the site if it power cannot be derived from the garden room external sockets (which itself will be supplied by the distribution panel). The earth rods, ours and the UKPN one will be within 2m of one another. My question / puzzlement / what am I missing is / are: Given the proximity and cable run between the the two earth rods why should the two earths NOT be connected together in the distribution panel. I did doodle a resistor network to try and get my head around this and am not sure I can see an issue - but it maybe just circumstances.
