Join Date: Oct 2006
Location: Callao, VA
Thanked 35 Times in 34 Posts
Rep Power: 14
Re: Connecting AC and DC ground via branch bus
short answer - as short as practical....reality - the better connection is the more desired, that is - a quality conductor, appropriately terminated and as the manufacturer specifies.
There is a great deal of opinion on the connection, if ANY, between the two systems. There are two requirements - safety and electrical, then the whole "bonding" of water contact, possible conductors (metallic thru-hulls, anodes, etc). The individual systems have requirements and the whole boat system does as well.
Requirements for home electrical that ties to the electrical grid are NOT always the best method for boats.