[Latitude 28]

Hey Guys,
I have a couple of questions concerning the way Newell grounds their electrical systems.  I hope that I can articulate what thinking....so please bear with me.

AC grounds - Just like a house, the AC electrical has a white/neutral wire and a bare/green ground that returns back the the main circuit breaker panel.  Is the neutral bus and the ground bus bar grounded somewhere on the frame?  If so where?  Or, is the AC ground dependent on being grounded through the AC source i.e. shore/generator?  I am asking this to clarify if we can use the ground bar in the AC electrical panel as a DC ground source?   Would there be any problems mixing the two ground sources?

Thanks
Steve