Tuesday, March 1, 2011

Re: [Electric Boats] Rewiring DC electric system and Grounding

 

Brian,


Thank you for bringing the "Grounding" question to this forum.  I hope there is an expert among us who can really nail down how to create a ground for electric propulsion.  I recommend a ground bus bar wired to the underwater metal, ie rudder and steering system and attached a ground wire from the negative side of the battery for my ground.  Please others on this forum comment on this very important issue.  Has ABYC finished the official rules inregard to grounding for electric systems??  

John Raynes






On Mon, Feb 28, 2011 at 8:41 AM, Brian Holt <drmsudo@yahoo.com> wrote:
 

I am replacing the electric panel on my aged ericson 27. I replaced the old A4 5 years ago with an electric. In removing the old motor, I lost my common ground to the engine. In place I bolted a bus bar that is by the old motor compartment and have used this. I have not had any problems so far. The boat is in fresh water and I have never had corrosion issues or noticed stray electric current around the boat. Now that I am replacing the panel I am looking to clean up the old wiring. I will also be adding a few things (ie. stereo, gps) and want to ensure that the boat and its wiring are up to par. I would like to hear some ideas or examples of working wiring systems and how they are grounded for DC house, electric motor, and shore power. Thanks for any and all that can help me out.


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