Calculated Industries 5025 - Manual (Page 16)

14 — ElectriCalc LT
Ground Function Keys
[Grnd] — Ground
An output-only key used to find the
grounding electrode conductor size for
AC systems based on NEC Table
250-66 and an entered or calculated
service-entrance conductor (largest
size). Only actual wire sizes are consid-
ered valid entries.
♦
First Press
Calculates the copper grounding elec-
trode conductor size if you have entered
a valid wire size.
Displays: GRND CU WIRE SIZE
♦
Second Press
Displays the aluminum grounding elec-
trode conductor size.
Displays: GRND AL WIRE SIZE
♦
Third Press
Displays the circular mil area used to
calculate the grounding electrode con-
ductor size. Displays: CMIL WIRE