On Thu, 22 Apr 2004 05:22:45 GMT, WaIIy
wrote:

I always heard you NEVER mix the AC and DC ground together. Never.
Of course, I'd like to know if this is true, but it makes a lot of sense
not to.

I was under the same impression. I thought that my AC system was
grounded through the shore power plug to the 3-wire system ashore.

Here is my rudimentary understanding:
http://jimthompson.net/boating/Elect...lectronics.htm

Jim