Refer to drawing with a 3% voltage drop, find the length. Load is 60 amps. Source is 120 Volts. D = {CM x VD} / {2 x K x I}

Refer to drawing with a 3% voltage drop, find the length. Load is 60 amps. Source is 120 Volts. D = {CM x VD} / {2 x K x I}