— 23
(cont’d)
3. Set to Copper (if necessary):
(Cu/Al) 3Ø 75 Cu
3 PH
4. Enter Amps:
AMPS 265.
5. Find Wire Size:
AWG 300
CU
WIRE SIZE
6. Change to Aluminum:
(Cu/Al)
AWG 400 AL WIRE SIZE
Sizing Parallel Conductors (Free Air)
What size 60°C insulated Copper
Wire is required for a single conductor
carrying a 500 Amp load in a Free
Air environment (30°C Ambient
Temperature.)? What size for two
Parallel conductors?
KEYSTROKE DISPLAY
0.
1. Set to 60º C:
(60º)
60
0.
2. Set to Copper (if necessary):
(Cu/Al) 60 Cu
0.
3. Set to Free Air mode:
(FrAir) 60 Cu FrAir
0.
4. Enter Amps:
AMPS 500.
5. Find Wire Size for one conductor:
AWG 500 CU
WIRE SIZE