54 — ElectriCalc Pro
Finding Number of Wires in
Existing Conduit — Same Size,
Various Types
Find the maximum number of #10 THHN
copper wires that can be pulled through an
existing 3 Inch EMT conduit. How many
XHHW wires? How many THW wires?
Steps
Keystrokes
Display
Clear calculator
o o
0.
Enter cond. type
1 S C
EMT nonE
COND
Enter wire size*
1 0 w
AWG 10 CU
WIRE SIZE
Enter conduit size
3 C
EMT 3.00 in
COND SIZE
Find max THHN #
∑
THHN 167.
TTL WIRES
Find max XHHW#
≈
XHHW 145.
TTL WIRES
Find max THW #
†
THW 145.
TTL WIRES
* Wire size can also be entered in
Circular Mils (e.g.,
1 0 3 8 0 w
enters 10,380 CMILs and displays 10
AWG wire size).
