User`s guide

46 — ElectriCalc Pro
Finding Voltage Drop Distance
How far from a single-phase 240-volt
source can you install a 15 amp load
using 60°C #10 Al branch circuit con-
ductors? Assume a 3% allowable volt-
age drop.
Steps Keystrokes Display
Reset calculator [Set] [x] [On/C] 0.
Set to 1-phase [Set] [1] 1 PH
Set to aluminum [Set] [4] 1Ø 60 Al 1 PH
Enter amps 15 [Amps] 15. AMPS
Enter volts 240 [Volts] 240. VOLT
Enter wire size 10 [WireSz] 10 AL
AWG WIRE SIZE
Enter 3% VD 3 [VD%] 3.0 DROP V %
Find distance [Length] 123.77387 FEET
Find actual
voltage drop [VD%] 7.2 DROP AL V
Find % v.drop [VD%] 3.0 DROP AL V %
NOTE: The calculator automatically
makes adjustments for resistance using
NEC Chap 9, Table 8, if the insulation
type is other than 75°C.
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