Voltage Drop Calculation

Amps x Distance (one way) = VDI
Voltage x Percent Loss
VDI Gauge Example
1 = #16 10 Amps Current
2 = #14 100 Feet one way distance
3 = #12 24 Volt system
5 = #10 2% Loss
8 = #8
12 = #6 10 x 100 = 20.83
24 x 2
20 = #4
34 = #2
49 = 1/0 Use #4 wire
62 = 2/0
78 = 3/0
99 = 4/0