Calculated Industries 5070-B User Guide - Manual (Page 36)

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Uide
— 35
sizing Parallel Conductors
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? For
three 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
6. Find Wire Size for two conductors:
  PaR 000 Cu
WIRe sIZe
7. Find Wire Size for three conductors:
 
PaR 0 Cu
WIRe sIZe
8. Exit Free Air Mode and Clear:
   60 Cu
0.
Note: Parallel Wire Sizes smaller than 1/0 will be displayed as none.