If you have a flexible seal on your propshaft then it probably is isolate. I'm thinking the easiest thing to do would be jumper across it with a piece of lare guage wire securely attached on both sides.
Another solution, which is probably better, is to look into a Dynaplate. Howevr this is going to be more effort and expence than a jumper across the coupling. I've been looking into one to create an isolated ground for the Arc and they are proud of those things.
Carter
www.shipofimagination.com
From: Fred Liesegang <fred4936@yahoo.com>
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Wednesday, August 28, 2013 1:07 PM
Subject: Re: [Electric Boats] Shore power
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Wednesday, August 28, 2013 1:07 PM
Subject: Re: [Electric Boats] Shore power
Thanks to all for the links and info! I will have to do something about a ground! The one thing I'm having trouble understanding is since the prop shaft is isolated (I have a flexable coupling), how can the current get to the water? I certainly do not want to create any sort of shock hazard, I just need to understand what is going on. If i do incorporate a grounding plate of some sort (maybe a thru-hull fitting), then there is ia definite path for the current to go. Is that the idea?
Fred
From: Carter Quillen <twowheelinguy@yahoo.com>
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Tuesday, August 27, 2013 11:39 AM
Subject: Re: [Electric Boats] Shore power
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Tuesday, August 27, 2013 11:39 AM
Subject: Re: [Electric Boats] Shore power
Fred,
Confusing subject with lots of "opinions" when you ask around but I would refer you to a link that was recently offered on this forum.
It is about the best information resource I have seen on the subject and offers some straight talk with eye opening examples.
Carter
From: fred4936 <fred4936@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Tuesday, August 27, 2013 7:46 AM
Subject: [Electric Boats] Shore power
To: electricboats@yahoogroups.com
Sent: Tuesday, August 27, 2013 7:46 AM
Subject: [Electric Boats] Shore power
Hello Everyone, I'm putting s proper shore power system in my boat, which should make life easier and safer! I read an article from Don Casey about installing shore power systems, and he says to connect the green ground to the engine block. I no longer have an engine block, so that option does not exist. Both the 48v and 12v DC systems are floating, and I was going to make the 120v AC system the same. My prop shaft is also electrically isolated. I was curious as to how others handled this. Thanks to everyone in advance! Fred Liesegang Tartan 27-2 "Eagle" ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/electricboats/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/electricboats/join (Yahoo! ID required) <*> To change settings via email: electricboats-digest@yahoogroups.com electricboats-fullfeatured@yahoogroups.com <*> To unsubscribe from this group, send an email to: electricboats-unsubscribe@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
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