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<blockquote data-quote="Evans Electric" data-source="post: 497497" data-attributes="member: 1408"><p>How come you measured your cable run in feet Traineeboy ? I make it about 121 mtrs for the sake of calcs . </p><p></p><p>I think I'd forget the existing outbuildings and run back to the main supply if you can . Work out your design current , feed a metal switch fuse from the Henley blocks , gland your SWA into the sw/fuse . Have you decided what the heating load will be? </p><p></p><p></p><p>I don't see that you need to do all that stuff , run a 3 core SWA , earth your glands in the usual way . You say its a TN-S supply I think. </p></blockquote><p></p>
[QUOTE="Evans Electric, post: 497497, member: 1408"] How come you measured your cable run in feet Traineeboy ? I make it about 121 mtrs for the sake of calcs . I think I'd forget the existing outbuildings and run back to the main supply if you can . Work out your design current , feed a metal switch fuse from the Henley blocks , gland your SWA into the sw/fuse . Have you decided what the heating load will be? I don't see that you need to do all that stuff , run a 3 core SWA , earth your glands in the usual way . You say its a TN-S supply I think. [/QUOTE]
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