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Ground circuit considerations
Following local codes and practices, install a ground circuit at the installation site. Consider
the following factors when constructing the ground circuit:
The ground electrode(s) should be copper-clad steel at least 1/2-inch in diameter.
The ground electrode(s) should have a minimum of 6 feet of direct contact with earth.
The ground electrode(s) should be located no closer than 24 inches from the outside
perimeter of the cabinet pad or pole.
The wire connecting multiple electrodes should be 2 AWG bare copper or larger, and
should be buried at least 24 inches deep or below the frost line (whichever depth is
greater).
The wire connecting multiple electrodes should be connected with an exothermic weld or
irreversible mechanical connector suitable for direct burial.
The wire connecting the cabinet main ground bar to the initial ground electrode should
be a 2 AWG or larger bare copper ground wire.
The ground wire should enter the cabinet separated from power or copper transmission
cables. Never bundle the ground wire together with other copper cables.
Connect the ground wire to the main ground bar.
Follow local code to satisfy additional requirements, if applicable.
