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Gold Prospecting
Alluvial Gold Prospecting
DC voltage drop over long wires to bilge pump
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<blockquote data-quote="Meroo" data-source="post: 296583" data-attributes="member: 8832"><p>Your supply voltage at the end of the 8m is what he's worried about not how much voltage he ll get on the other side of his load which is the voltage drop your referring to. If you measure your battery voltage and get say 13v at the terminals then connect say a 5 m cable and measure the voltage at the end of the cable you will get less voltage depending on the size of the cablee irrespective if it's connected to a load or not. this is due to the resistance of the cable. bigger cable less resistance equals less voltage drop and can draw a higher current. Cable selection is what he needs to know there are heaps of online calculators that will automatically calculate the correct cable size based on voltage ,distance,load etc</p></blockquote><p></p>
[QUOTE="Meroo, post: 296583, member: 8832"] Your supply voltage at the end of the 8m is what he's worried about not how much voltage he ll get on the other side of his load which is the voltage drop your referring to. If you measure your battery voltage and get say 13v at the terminals then connect say a 5 m cable and measure the voltage at the end of the cable you will get less voltage depending on the size of the cablee irrespective if it's connected to a load or not. this is due to the resistance of the cable. bigger cable less resistance equals less voltage drop and can draw a higher current. Cable selection is what he needs to know there are heaps of online calculators that will automatically calculate the correct cable size based on voltage ,distance,load etc [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
DC voltage drop over long wires to bilge pump
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