Here I go again...

[bandgeek1263]

Well, gottanother CAD software setup. Only this time, its for Electronics! ooooooooohh ahhhhhhh.

It actually isn't that impressive as to what I understand electronically, but it is a good diagram for a basic boat wiring scheme. As always, thoughts, comments, etc.

 

[sparkbr]

The image is a little difficult to make out, but I would reverse the polarity and run the switches on the positive lead. There is a good chance one or more component that you are installing will ground to it's chassis, and in turn ground the entire boat. With water in the mix, there is risk of a short to ground even if a given circuit's switch is off. With the positive lead switched, the risk is only there when the circuit is energized.

Both ways will work just fine, just my 2 cents.

 

[sparkbr]

Also, with the polarity run the way it is in the diagram, your fuses are only protecting the wire from the battery to the fuse, the rest of the circuit is unprotected.