Calculated Industries 5025 User Manual
Page 36
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34 — ElectriCalc LT
Finding Voltage Drop Wire Size
A 20-amp single-phase 208-volt load
will be located 175 feet away from the
source. Assuming a 3% allowable volt-
age drop, what is the size of 75°C con-
ductor required for this branch circuit?
Steps Keystrokes Display
Reset calculator
[Set] [x]
0.
Set to 75°C
[Set] 7
3Ø 75 Cu 0.
Set to single ph.
[Set] 1
1 PH
Enter amps
20 [Amps]
20. AMPS
Enter volts
208 [Volts]
208. VOLT
Enter distance
175 [Length]
175. FEET
Enter allow. VD% 3 [VD%]
3 DROP V %
Find wire size
[WireSz]
8 CU
AWG WIRE SIZE
Find actual
voltage drop
[VD%]
5.4 DROP V
Find % v.drop
[VD%]
2.6 DROP V %
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