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PME earthing to a group of static caravans TT earth required?

LittlePlumb
Can anyone give me there valuable opinions on earthing to a static-mobile home please. As per BS7671, PME earthing is not allowed to (mobile) caravans. However, does a static caravan (plumbed in and permanent with a SWA cable supplying it and no plug/socket arrangement) count as a caravan. The Static caravan is metal framed, and placed some distance from the PME source 40m or so, and the cable size is 16mm CSA 3 core, so PME (100A single phase) could be exported on the cable as its greater than 10mm CSA,

The static caravan is permanent and not quite the same as a transportable caravan, so does a TT earth need to be installed?
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    I was in a scrapyard and a lad had brought in copper pipe to be weighed, the pipe was folded up, even the short lengths.


    The guy on the scales was laying into him asking if he thought he was stupid, as he knew the pipes had been filled with sand, then folded up to stop it falling out.


    Andy B
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    I was in a scrapyard and a lad had brought in copper pipe to be weighed, the pipe was folded up, even the short lengths.


    The guy on the scales was laying into him asking if he thought he was stupid, as he knew the pipes had been filled with sand, then folded up to stop it falling out.


    Andy B
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