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Wiring question
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<blockquote data-quote="WTM" data-source="post: 5059176" data-attributes="member: 6230"><p>tinned marine grade wire is only a dollar a foot. most marine grade wire is 90-105 deg C wire. that 12 or 10 awg nm cable is only rated for 60 deg C. thats 140 deg F. put that boat out in 90 degree weather and your already over half of the insulation heat rating and pump 50 amps thru it and your already getting close to insulation breakdown.</p><p></p><p>the smaller the awg you try to use and that trolling motor will compensate the voltage drop with a higher amp draw.</p><p></p><p>current draw on a 12v system is equivalent to the TM ft-lbs rating.</p><p></p><p>use the minkota guide, its designed for 3% voltage drop which keeps the end voltage near battery output voltage. i also use 3% for electronics.</p></blockquote><p></p>
[QUOTE="WTM, post: 5059176, member: 6230"] tinned marine grade wire is only a dollar a foot. most marine grade wire is 90-105 deg C wire. that 12 or 10 awg nm cable is only rated for 60 deg C. thats 140 deg F. put that boat out in 90 degree weather and your already over half of the insulation heat rating and pump 50 amps thru it and your already getting close to insulation breakdown. the smaller the awg you try to use and that trolling motor will compensate the voltage drop with a higher amp draw. current draw on a 12v system is equivalent to the TM ft-lbs rating. use the minkota guide, its designed for 3% voltage drop which keeps the end voltage near battery output voltage. i also use 3% for electronics. [/QUOTE]
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