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Do-It-Yourself (DIY) Question & Answer Forum
External supply and location of CU
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<blockquote data-quote="Evans Electric" data-source="post: 44736" data-attributes="member: 1408"><p>Hi Nat, Andyc has answered your questions to me , But I still think 10mm SWA is overkill. I don't think you have a volt-drop problem ( not done any calcs) so the way I look at things is :- Two sheds in garden , probable load = a 100w lamp in each shed and an electric mower once a week, unless client has indicated anything else. 10mm SWA rated at approx. 66amps...6mm SWA rated at 48amps..... 4mm rated at 37amps...... 2.5mm rated at 29amps. I know which one I would pick.</p><p></p><p>A metalclad C/U in the shed will let you gland your SWA directly to it.</p><p></p><p>I don't know any domestic C/Us that have 20mm knockouts for SWA .</p><p></p><p>The switch shown by Andyc is the one I'm thinking of.</p><p></p><p>Sorry I don't really know how to post photos and links onto the forum.</p><p></p><p>Deke</p></blockquote><p></p>
[QUOTE="Evans Electric, post: 44736, member: 1408"] Hi Nat, Andyc has answered your questions to me , But I still think 10mm SWA is overkill. I don't think you have a volt-drop problem ( not done any calcs) so the way I look at things is :- Two sheds in garden , probable load = a 100w lamp in each shed and an electric mower once a week, unless client has indicated anything else. 10mm SWA rated at approx. 66amps...6mm SWA rated at 48amps..... 4mm rated at 37amps...... 2.5mm rated at 29amps. I know which one I would pick. A metalclad C/U in the shed will let you gland your SWA directly to it. I don't know any domestic C/Us that have 20mm knockouts for SWA . The switch shown by Andyc is the one I'm thinking of. Sorry I don't really know how to post photos and links onto the forum. Deke [/QUOTE]
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