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Do-It-Yourself (DIY) Question & Answer Forum
SWA going into a trench
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<blockquote data-quote="springcrocus" data-source="post: 25321" data-attributes="member: 935"><p>The lady has indicated that she wants to run a mini-cooker down there, and she might wish to use an electric fire.</p><p></p><p>Total run of the cable is 50 mtrs, allowing for 17.5 amps max gives a volt drop of 9.57 volts (4.16%) so getting a bit close. 6mm allows some headroom.</p><p></p><p>As Apache <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> has pointed out, third core is for earth. SWA (third core) will be electrically connected at the main dis board only, not the summer house.</p><p></p><p>It might be a bit over the top BUT better safe than sorry, I think<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Anyway, thanks for all your input. Anybody else got any thoughts on protecting the cable at point of entry to the ground?</p></blockquote><p></p>
[QUOTE="springcrocus, post: 25321, member: 935"] The lady has indicated that she wants to run a mini-cooker down there, and she might wish to use an electric fire. Total run of the cable is 50 mtrs, allowing for 17.5 amps max gives a volt drop of 9.57 volts (4.16%) so getting a bit close. 6mm allows some headroom. As Apache ;) has pointed out, third core is for earth. SWA (third core) will be electrically connected at the main dis board only, not the summer house. It might be a bit over the top BUT better safe than sorry, I think:) Anyway, thanks for all your input. Anybody else got any thoughts on protecting the cable at point of entry to the ground? [/QUOTE]
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SWA going into a trench
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