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#33
9th February 2010, 03:29 PM
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quick note dont forget to factor in lower voltages as this will push the amps up a bit
55w/14v=3.92A running/charging 55w/12v=4.58A stoped/ok 55w/11.5v=4.78A flat! so dont forget to uprate the cable above the duty needed! or the smoke will leak out of your cables when i was at collage studing auotmtive engineering/design/eletronics the rule of thumb was to work all of this and factor it into everything and i thort it was a compleate waste of time  the idea is fine for working out fuse sizes but i would be factoring in 15-20% above duty for cable sizes stuf like bulbs,fuel pumps etc may well be uprated in the future 
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