offset Posted February 22, 2016 Share Posted February 22, 2016 What size of cable will be required to supply a 1.5KW pump 300 metre away Link to comment Share on other sites More sharing options...
Crossy Posted February 22, 2016 Share Posted February 22, 2016 Allowing for a start current of 3 x normal running current and an allowable start volt drop of 20% (down to 176V, as low as I would like to go) you could just get away with 6mm2 cable. How are you running the cable? If on poles then go up to 10mm2 (12% volt drop on start) and use single insulated rather than insulated and sheathed. If cost sensitive go for a size bigger and aluminium cable rather than copper. Link to comment Share on other sites More sharing options...
offset Posted February 22, 2016 Author Share Posted February 22, 2016 Thanks for your help Link to comment Share on other sites More sharing options...
sappersrest Posted February 22, 2016 Share Posted February 22, 2016 http://www.doncastercables.com/technical-help/ This site has a good online calculator. Link to comment Share on other sites More sharing options...
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