Again this is great invaluable advice. Thank you kindly. Regarding the earth. What seems to be the earth, as in, its a thick cable connected to the earth busbar and trails away to the ground is completely buried. So far about 30cm under ground but looks like it has a redbull bottle sitting as a hat to the rod maybe to protect the connection, so i have to do a bit more digging. Failing that and the danger test, i brought a 5/8th copper plated steel rod 3m long, would it just be better to install my own right next to it and just swap over the cable? Regarding the isolation switch. Sorry for my psudeo understanding... Funnily enough i was looking on screwfix and did see these, i had 2 concerns, one being that they most only take upto 25mm sq tails and the other was that i thought it should be a manual switch, possibly with a lock so that its not easily switched back on. I had read that an mcb switch was sometimes not ideal because its too easily switched back on, but also because it can sometimes be an issue with the main breaker in the CU for offering no discrimination between the 2. I can actually get a bticino 100a main breaker mcb that will take 50mmsq mains here, are you confident to say this would be fine, or should i go with a dedicated isolator switch. Thanks again.
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