Line Loss

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Power Driven 
on Line

watts

Length of Line

ft.

Voltage level

volts

Wire Gauge

Line Loss:

dB

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