This calculator provides line loss with 2-conductor cable on a constant voltage line.
Equation used to calculate the data:
Ploss = 10 * Log [1 – ((2 * RL) / (2 * RL + (Vline squared / Prated))]
RL = (Rref / 1000) * D
Where:
D = length of wire used
Ploss = ower loss in dB
Prated = power driven on line
RL = wire guage resistance
Vline = voltage on line