Effective Impedance = Z_e = [R x COS(θ)] + [X_L x SIN(θ)]

θ = Phase Angle, e.g. 31.79 degrees
COS(θ) = COS(31.79) = 0.85 (Which is PF, or Power Factor)
SIN(θ) = SIN(31.79) = 0.527
R = AC Resistance value from Table 9, e.g. 0.054 (See the 250 kcmil line for Steel Conduit)
X_L = Reactance value from Table 9, e.g. 0.052 (See the 250 kcmil line for Steel Conduit)
Z_e = [0.054 x 0.85] + [0.052 x 0.527] = 0.073 = Effective Impedance

3Ø Phase Voltage Drop, VD = (1.732 x Z_e x I x L) / 1000
1Ø Phase Voltage Drop, VD = (2 x Z_e x I x L) / 1000

Choose Length Measurement: Feet Meters

Choose Conduit Type: PVC Aluminum Steel

Power Factor, "PF"
Length in Feet, "L"
Amperes, "I"
Source Voltage, "E"
1000 kcmil 750 kcmil 600 kcmil 500 kcmil 400 kcmil 350 kcmil 300 kcmil 250 kcmil 4/O, 211600 CM 3/O, 167800 CM 2/O, 133100 CM 1/O, 105600 CM 1 AWG, 83690 CM 2 AWG, 66360 CM 3 AWG, 52620 CM 4 AWG, 41740 CM 6 AWG, 26240 CM 8 AWG, 16510 CM 10 AWG, 10380 CM 12 AWG, 6530 CM 14 AWG, 4110 CM Choose Wire Size, "CM"