Good article.
Do you use an isolator on your shore power? Really bad marinas can require 
isolation transformers.
Joe
Coquina

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of David Castor 
via CnC-List
Sent: Tuesday, August 14, 2018 12:21 PM
To: cnc-list@cnc-list.com
Cc: David Castor <dpcas...@gmail.com>
Subject: [EXTERNAL] Re: Stus-List Galvanic corrosion

Normally a lurker on this list, since I don't own a C&C, but thought I'd post 
this link to a paper on corrosion issues by Stan Honey.  
http://honeynav.com/grounding-on-sailboats/

West Marine has a version of this on their website.  From my perspective as a 
EE (but certainly not a corrosion expert), Stan's suggestions seem to sum up 
the issues and possible remedies pretty well.

There is no perfect solution, particularly regarding stray currents.   At my 
"hot" marina, I go through two oversized shaft anodes every 5-6 months.

David Castor
Port Angeles, WA

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