Calculated Industries ElectriCalc Pro - Ohms Law Applications

Pocket RefeRence Guide
— 25
(cont’d)
7. Set to 50º C Ambient Temperature:

(Ambº) Amb AMB° 50. ºC
8. Find Derated Wire Size:
  
(D/R Size) D/R 500 CU WIRE SIZE
9. Reset Ambient Temperature
and Clear:
 3Ø 60 Cu 0.
VOLTAGE DROP
The ElectriCalc Pro uses Resistance
values found in NEC Table 8 Chapter
9 to determine Voltage Drop, Wire
Lengths or Wire Sizes given a
maximum Voltage Drop percentage.
Finding Voltage Drop
You are installing 175 Feet of 75°C,
#8 THW branch circuit Copper
conductors to supply an 11A load on a
208V 1Ø system. What is the source
Voltage Drop at the load?
KEYSTROKE DISPLAY
  0.
1. Set to 1-Phase:
(1Ø) 1 Ø 1 PH
2. Set to 75 º C:
(75º) 1 Ø 75 1 PH