Calculated Industries ElectriCalc LT User Manual page 35

Steps Keystrokes
Enter wire size 8 [WireSz]
Solve volt. drop [VD%]
Solve % v.drop [VD%]
Finding Three-Phase
Voltage Drop
A 20-amp three-phase load is being fed
by a 230-volt source located 150 feet
away. The installation specifications
require 75°C #10 THW stranded copper
conductor. What is the voltage drop on
this branch circuit?
Steps Keystrokes
Reset calculator [Set] [x]
Set to 75°C [Set] 7
Enter amps 20 [Amps]
Enter volts 230 [Volts]
Enter length(feet) 150 [Length]
Enter VD wire size10 [WireSz]
Find VD [VD%]
Find VD% [VD%]
Display
8 CU
AWG WIRE SIZE
3.0 DROP V
1.4 DROP V %
Display
0.
3Ø 75 Cu 0.
20. AMPS
230. VOLT
150. FEET
10 CU
AWG WIRE SIZE
6.4 DROP V
2.8 DROP V %
User's Guide — 33