User Manual

38 — ElectriCalc Pro
Wire Sizing Based
on Ambient Temperature
Find the 90°C aluminum wire size
needed to connect a 47,700 volt-amp
load to a 240 volt, single-phase source.
What is the adjusted wire size, if the
ambient temperature rating is changed
from the default 30°C to 40°C?
Steps Keystrokes Display
Clear calculator [On/C] [On/C] 0.
Set to 1-phase [Set] [1] 1 PH
Set to 90°C [Set] [9] 1 Ø 90 Cu 1 PH
Set toAl [Set] [4] 1 Ø 90 Al 1 PH
Enter VA 47700 [VA] 47,700. VA
Enter volts 240 [Volts] 240. VOLT
Find amps [Amps] 198.75 AMPS
Find wire size [WireSz] 0000 AL
AWG WIRE SIZE
Change ambient
temperature 40 [Set] [2] AMB° 40.˚C
Find adjusted
wire size [WireSz] 250 AL
AWG WIRE SIZE
Reset amb. temp 30 [Set] [2] AMB° 30.˚C
*NOTE: Ambient temperature will re-
main at 40°C unless you change it or
perform an ALL CLEAR ([Set] [x]).
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