Re: What formula(s) do I need to know what gauge wire I need
Got another question though...
in this example:
**broken link removed**
(6volts output over 30awg with 6feet cable with 1 amp load)
It says I will be dropping 2.1volts..
I will get 3.9volts at the end of the circuit
35percent drop
--
That means, I will be inputting 6v 1amp into the wire, and outputing 3.9v 1amp at the end of the wire (loosing into space 2.1volts.. 0amps)
Is this correct?
So basically you don't loose amps, just voltage.. and "by loosing" what happens to this voltage?(just turns into heat?)
thanks guys!
Lee
Added after 7 minutes:
borber, that is a good point.. somehow I looked over in the last couple of minutes.. but the only rule of thumb I was using...
The calculator I was using on:
https://www.powerstream.com/Wire_Size.htm
let me input these factors... 30awg at 480volts 3-phase@15amps, cable 60feet long.. and it outputed some figures.. that made this wiring look feasible..
I guess my other question is.. How do you know what wire to pick based wire diameter? The chart on powerstream.com only tells you the max amps per gauge.. not the max voltage.
thanks again guys!
Lee