User's GUide — 43
Finding Voltage Drop Resistance
What is the Resistance of 85 Feet of #2 90° C Copper conductor?
KEYSTROKE DISPLAY
0.
1. Set to 90º C:
(
90º
)
90 0.
2. Set to Copper (if necessary):
(
Cu/Al
)
90 Cu 0.
3. Enter Wire Size:
*
AWG 2 CU WIRE SIZE
4. Find Resistance:
(
Wire Res
)
OHMS 0.2033993 WIRE
5. Find 85-foot Resistance**:
0.0172889
* Wire size can also be entered in Circular Mils (e.g.,
enters 10,380 CMILs and displays 10 AWG
Wire Size).
** Given Resistance per 1,000 Feet, divide by 1,000 to get a per
Foot Resistance, then multiply by 85.
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