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Steel Clad Building and High Voltage Overhead Cables.

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There is a modern sheet steel clad building nearby. It has what appears to be plastic covered steel sheets as exterior walls. It is used as a Scout Hut and can probably accommodate about 80 people for events. Running overhead are three high Voltage cables that feed local transformers, including the scout hut transformer which is on a pole nearby. The scout hut has two earth electrodes which connect to a part of the building and earth it. Although they are quite close together so may not really count as two in function.


Theoretically what would happen if one of the H.V. overhead cables came adrift and fell onto the roof of the building regarding risks?


This is a theoretical question relating to a real building but with a serious intention.


Thanks,


Z.


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  • 0
    I do not see why we may not consider and discuss what is done in other countries - just because US wiring does not meet our rules, does not mean they are stepping out of the front door over dead bodies in the morning ,and alternate approaches are worth looking at sometimes. Personally I think we should be open to discuss any other situations too. In any case HV is not included BS7671, UK style HV or anyone else's.

    It may be important to be clear  where things are the same or different, to avoid mis-advice to the wrong person, but  the title of this forum is "wiring And  regulations BS7671", not "ONLY how to do wiring to the regulations",   actually there is already a book for that - available from this very website ?


    Bad luck about the squirrels though, a goner in all systems. Here the birds on the wires stand a better chance, though not normally seen on 33kV and above.


    (As an aside, my avatar if you can see it, is a single wire earth return substation on a pole - hence only one HV wire and one insulator - I know its not to BS7671, or the US method, I'm not changing it.)
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  • 0
    I do not see why we may not consider and discuss what is done in other countries - just because US wiring does not meet our rules, does not mean they are stepping out of the front door over dead bodies in the morning ,and alternate approaches are worth looking at sometimes. Personally I think we should be open to discuss any other situations too. In any case HV is not included BS7671, UK style HV or anyone else's.

    It may be important to be clear  where things are the same or different, to avoid mis-advice to the wrong person, but  the title of this forum is "wiring And  regulations BS7671", not "ONLY how to do wiring to the regulations",   actually there is already a book for that - available from this very website ?


    Bad luck about the squirrels though, a goner in all systems. Here the birds on the wires stand a better chance, though not normally seen on 33kV and above.


    (As an aside, my avatar if you can see it, is a single wire earth return substation on a pole - hence only one HV wire and one insulator - I know its not to BS7671, or the US method, I'm not changing it.)
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