User’s Guide — 39
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
Clear calculator
o o
0.
Set to 75°C
S 7
3Ø 75 Cu 0.
Enter Amps
6 5 A
AMPS 65.
Find normal
wire size
w
AWG 6 CU
WIRE SIZE
Find derated
wire size
9 S P
D/R
3 CU
WIRE SIZE
Display Wire
P
D/R
45.5
Ampacity WIRE
A
Display Adjustment
P
ADJ 70. %
Factor
Display NEC Table
P
NEC 310.15
NOTE:
See “Settings” for a list of Permanent
Values/settings. Changing these settings
may affect your calculations.
