I was wondering if there was a way to figure out the current loss for various gage wires and lengths. I looked online bulk of what i see is voltage loss not amperage. Maybe ohms low or something on the source and load end measuring the drop in voltage you could find the lost amperage. Not exactly how would do that, or if there is a simpler way.
I redid a cable for our backup generator from a 4 FT 10AWG wire to a 12 ft 6 AWG wire. Generator puts out 30 A 120,120, 240 and gnd so 4 wires.
I think i'm fine with the 6 AWG cable, but was still curious what difference it could make. Maybe i'm totally wrong, but i know with length current also drops, i've seen it my dad ran 100 ft of 6AWG 4C cable to the garage 100 FT away while it works even with 60A breaker at house he couldn't hardly use his 50A stick welder, and i guess generator putting out 220 @30A couldn't run it either. So i think that's evidence amperage also drops with length.
(I know this isn't really an AC wiring job forum, but i'm more interested in the theory, and how to perform it. And if somebody wants to explain they can use those figures.)
I redid a cable for our backup generator from a 4 FT 10AWG wire to a 12 ft 6 AWG wire. Generator puts out 30 A 120,120, 240 and gnd so 4 wires.
I think i'm fine with the 6 AWG cable, but was still curious what difference it could make. Maybe i'm totally wrong, but i know with length current also drops, i've seen it my dad ran 100 ft of 6AWG 4C cable to the garage 100 FT away while it works even with 60A breaker at house he couldn't hardly use his 50A stick welder, and i guess generator putting out 220 @30A couldn't run it either. So i think that's evidence amperage also drops with length.
(I know this isn't really an AC wiring job forum, but i'm more interested in the theory, and how to perform it. And if somebody wants to explain they can use those figures.)