P
ocket
R
efeRence
G
uide
— 25
(cont’d)
6. Find Wire Size for two conductors:
PAR 000 Cu
WIRE SIZE
7. Exit Free Air Mode and Clear:
60 Cu
0.
Finding Derated Wire Size
A circuit was built with 60°C Copper
wire connecting a 47,650 VA load
to a 240 Volt, 3Ø source. Ambient
Temperature is 50°C. What is the
Derated Wire Size required if eight
current-carrying THHN wires are
installed in the raceway?
KEYSTROKE
DISPLAY
0.
1. Set to 3-Phase:
(3Ø)
3Ø
3 Ph
2. Set to 60º C:
(60º)
3Ø
60
3 Ph
3. Set to Copper (if necessary):
(
Cu/Al
)
3Ø
60 Cu
3 Ph
4. Enter Volt-Amps:
VA 47,650.
5. Enter Volts:
VOLT 240.
6. Find Amps:
AMPS 114.62808.
KEYSTROKE
DISPLAY
