User`s guide

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40 — ElectriCalc Pro

(Cont’d)

Steps Keystrokes Display

Reset calculator [Set] [x] [On/C] 0.

Set free air mode [Set] [5] 3Ø 60 FrAir Cu 0.

Enter amps 500 [Amps] 500. AMPS

Find 1 wire size [WireSz] 500 CU

AWG WIRE SIZE

Find 2 wire size 2 [ParSz] 000 CU

PAR WIRE SIZE

Find 3 wire size 3 [ParSz] 0 CU

PAR WIRE SIZE

NOTE: Parallel wire sizes smaller than

1/0 will be displayed as nonE.

Finding Derated Wire Size

What is the derated wire size required

for nine 75°C copper wires, each carry-

ing a maximum load of 65 amps?

Steps Keystrokes Display

Reset calculator [Set] [x] [On/C] 0.

Set to 75°C [Set] [7] 3Ø 75 Cu 0.

Enter amps 65 [Amps] 65. AMPS

Find normal

wire size [WireSz] 6 CU

AWG WIRE SIZE

Find derated

wire size 9 [Set] [ParSz] 3 CU

D/R WIRE SIZE

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