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Microshocks from induced voltage

MG
Has anyone ever come across the requirement to earth a section of metallic fence to mitigate micro-shocks that may be induced by an overhead transmission line? I have looked online but there is no methodology or guidance value listed other than just "earth the fence".


Any info would be useful.


Thanks

Mike
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    For metallic fences I would consider referring to ENA EREC TS 41-24 (available via the Distribution Code site) which (in §6.6) specifies 2.4m rods 1m either side of the overhead line and ensuring electrical continuity between panels. This assumes the fence is otherwise electrically continuous.


    The specification is written for HV substations so do check first as it may be inappropriate in some cases.


    I have also seen GRP sections used (with buried continuity conductors across the gap where necessary)
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  • 0
    For metallic fences I would consider referring to ENA EREC TS 41-24 (available via the Distribution Code site) which (in §6.6) specifies 2.4m rods 1m either side of the overhead line and ensuring electrical continuity between panels. This assumes the fence is otherwise electrically continuous.


    The specification is written for HV substations so do check first as it may be inappropriate in some cases.


    I have also seen GRP sections used (with buried continuity conductors across the gap where necessary)
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