why arent impressed voltage protection systems used? you can put up to 2 volts on platinum before it migrates.
From: Mike <biankablog@verizon.net>
To: electricboats@yahoogroups.com
Sent: Wed, March 2, 2011 7:35:21 AM
Subject: Re: [Electric Boats] Rewiring DC electric system and Grounding
Rob: I'm sure ABYC has some standard on this. But, IMO the answer is technically no. But, reality is quite different. Think about cars. They have a 12 volt electrical system just like boats do (if an EV even higher voltages) but, they are isolated from ground (earth) by the rubber tires. So a boat should be able to operate the same way. EXCEPT boats get wet. So water even from condensation inside the hull forms it can create paths to ground in places and ways that may not be too good. Especially when you have metal through hulls etc... So it probably is a good idea to make sure you control the paths to ground rather than let water/moisture form the ground for you. I think the windlass ground switch is probably a good idea. Because if you have the windlass grounded (via chain) AND another ground say motor/prop shaft you have two grounds that could have different potentials and also add to the zinc issues you mentioned. Anyway that's my take on it. Capt. Mike http://biankablog.blogspot.com/ --- On Wed, 3/2/11, rob linda <rob_linda_2000@yahoo.com> wrote:
|
__._,_.___
.
__,_._,___
No comments:
Post a Comment