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Earthing conductor route

lyledunn
c7485ec9e68fd8899e2a119fdd12e5e4-huge-85dd7ef6-76b9-48a1-99c2-f89a6b8a6fa6.jpg

That’s a 25mm2 earthing conductor run some 20m along a border hedge to an electrode at the rear of the building. It is a permanent, recent installation. When I commented on it the contractor lost his cool and screamed “what the hell is wrong with it”? I thought that the answer was obvious but my written response on behalf of the client is to be framed within the context of 7671. I have no difficulty in digging up the relevant regulations but they are subjective in nature. Anyway, all good fun!
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    Might have been better to bury and earth the old water tank.

    I have seen the reverse, maybe the prize for the shortest cable to a rod, the head of the rod being inside the building, under suspended floor, driven out at about 45 degrees though the footings via a hole in the bricks below the DPC.


    If the intention  of the job was it only had to last until the DNO came back,  and the intention was later to coil it in and take it away later, maybe.


    It does beg the question of why you want to use a potential that could be a few volts different to the earth the house is actually standing on. (only in a built up area with PME)

    Stealth VLF comms antennas can be made this way, but I'm very sure it is not that.



    Is the rest of the TT OK? - RCDs and all that.
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  • 0
    Might have been better to bury and earth the old water tank.

    I have seen the reverse, maybe the prize for the shortest cable to a rod, the head of the rod being inside the building, under suspended floor, driven out at about 45 degrees though the footings via a hole in the bricks below the DPC.


    If the intention  of the job was it only had to last until the DNO came back,  and the intention was later to coil it in and take it away later, maybe.


    It does beg the question of why you want to use a potential that could be a few volts different to the earth the house is actually standing on. (only in a built up area with PME)

    Stealth VLF comms antennas can be made this way, but I'm very sure it is not that.



    Is the rest of the TT OK? - RCDs and all that.
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