User`s guide

Pocket RefeRence Guide — 29
(cont’d)
GROUND CONDUCTOR
WIRE SIZE
The ElectriCalc Pro uses NEC Table
250.66 to nd the Grounding Electric
Conductor Size for an entered Feeder
Size.
Find the Grounding electrode
conductor Wire Size required when
a 2/0 Copper service-entrance
conductor is being used.
KEYSTROKE DISPLAY
 0.
1. Enter Wire Size and nd Ground
Wire Size:
 GRND 4 CU WIRE SIZE
2. Find Aluminum size:
 GRND 2 AL WIRE SIZE
EQUIPMENT GROUNDING
COUNDUCTOR WIRE SIZE
The ElectriCalc Pro uses an external
amperage to nd the Equipment
Grounding conductor based on NEC
Table 250.122.
Find the Equipment Grounding
conductor size required when the
circuit breaker is rated at 45 Amps.