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Student & Learning Zone - City & Guilds
Can you please check my cable calculation.
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<blockquote data-quote="PC Electrics" data-source="post: 162703" data-attributes="member: 650"><p>If you take a tour round the mower section of your nearest DIY shed, you'll find that even a large Flymo only has a 1500W motor. So lets say the load is 2kW max (for good measure).</p><p></p><p>A 6 foot florry will pull 100W in round figures.</p><p></p><p>So, Ib = 11 amps</p><p></p><p>Ca = 0.77 ??</p><p></p><p>You installing in the Sahara?</p><p></p><p>Outdoors, UK ambients will rarely touch 30C, which is design, so Ca = 1.0</p><p></p><p>Now recalculate. Cable will defo drop to 4mm, maybe 2.5mm.</p><p></p><p>Don't forget to work to max Vd = 3% for lighting.</p></blockquote><p></p>
[QUOTE="PC Electrics, post: 162703, member: 650"] If you take a tour round the mower section of your nearest DIY shed, you'll find that even a large Flymo only has a 1500W motor. So lets say the load is 2kW max (for good measure). A 6 foot florry will pull 100W in round figures. So, Ib = 11 amps Ca = 0.77 ?? You installing in the Sahara? Outdoors, UK ambients will rarely touch 30C, which is design, so Ca = 1.0 Now recalculate. Cable will defo drop to 4mm, maybe 2.5mm. Don't forget to work to max Vd = 3% for lighting. [/QUOTE]
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Student & Learning Zone - City & Guilds
Can you please check my cable calculation.
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