Calculated Industries 5070-A Pocket Reference Guide User Manual
Page 30
P
ocket
R
efeRence
G
uide
— 29
(cont’d)
GRounD ConDuCToR
WIRe sIZe
The ElectriCalc Pro uses NEC Table
250.66 to find 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 find 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 find 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.
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