Aluminum Ohms
21
Copper Ohms
13
Single Phase Multiplier
2
Three Phase Multiplier
1.732
Circular Mills Table
Chapter 9, Table 8
Voltage Drop Formula
Phase Multiplier * Conductor Material Ohms * Ampacity of Equipment * Distance = Value/Circular Mills of Conductor Size
OR
PCD*A=Value Then Value/Circular Mils
Branch Circuit Voltage Drop Percentage
3%
Feeder Voltage Drop Percentage
5%