"Wayne Whitney" wrote in message
...
Hello,

Is it standard for a residential electrical subpanel to use its
chassis as a ground backplane? I.e. the ground from the incoming
4-wire feed terminates at a lug bolted to the back of the panel, and
the ground bar is also just bolted to the back of the panel.

Thanks, Wayne

The incoming ground wire should terminate at the ground bus, not at the
cabinet itself. Grounding path for the cabinet should be
cabinet-to-bus-to-incoming grounding conductor so the cabinet is not part of
other ground fault current paths.

Don Young