Calculated Industries 5065 - Manual (Page 60)

User’s Guide — 55
Finding Conduit Size - Multiple
Conductors Different Wire Sizes
and Types
Three 1/0 THWN 75°C conductors and
one #2 XHHW 75°C copper conductor
are to connect to a panel board using a
single conduit. What is the cross-
sectional area of wires, conduit size
and actual fill area?
(Note: The cross-
sectional areas are the same for both
THHN and THWN; display will show as
THHN.)
Steps
Keystrokes Display
Clear calculator
o o
0.
Set to 75°
S 7
3Ø Cu 75 0.
Enter cond. type
3 S C
FMC nonE
COND
Enter 1st wire sz*
0 w
AWG 0 CU
WIRE SIZE
Enter #, type wire
3 ·
THHN 3.
WIRES
Find cross-section
wire area
·
THHN 0.5565
WIRE AREA
Enter 2nd wire sz*
2 w
AWG 2 CU
WIRE SIZE
Enter #, type wire
1 Å
XHHW 1.
WIRE
Find cross-sect.
Å
XHHW 0.1146
WIRE AREA
Find conduit size
C
FMC 1.50 in
COND SIZE
(Cont’d)