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Do-It-Yourself (DIY) Question & Answer Forum
Two supplies to a building
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<blockquote data-quote="Phoenix" data-source="post: 186977" data-attributes="member: 8133"><p>I understand what you are saying, theres going to be parallel paths in the earthing... (that would be the same though if it were two separate sites but shared a metallic gas main!), of course ze tested with supply earth in isolation from earth bar, bonding, other elec service etc</p><p></p><p>Earths are going to have to be bonded together to form eqipotenial zone, as as mentioned going to have to check this does not present issues on DNO side with circulating currents etc</p><p></p><p>I'm picturing it as, it would be the same if they built another site next to it and put a supply into there, but just put into the existing building alongside existing supply</p><p></p><p>I think the exisitng is tncs, and nre is very likely to be too</p></blockquote><p></p>
[QUOTE="Phoenix, post: 186977, member: 8133"] I understand what you are saying, theres going to be parallel paths in the earthing... (that would be the same though if it were two separate sites but shared a metallic gas main!), of course ze tested with supply earth in isolation from earth bar, bonding, other elec service etc Earths are going to have to be bonded together to form eqipotenial zone, as as mentioned going to have to check this does not present issues on DNO side with circulating currents etc I'm picturing it as, it would be the same if they built another site next to it and put a supply into there, but just put into the existing building alongside existing supply I think the exisitng is tncs, and nre is very likely to be too [/QUOTE]
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Two supplies to a building
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