Calculated Industries ElectriCalc Pro Guia do Utilizador descarregar pdf (Página 30)

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



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.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 44 45

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Calculated Industries ElectriCalc Pro Guia do Utilizador Página 30