SailNet Community - View Single Post - Galvanic corrosion from nearby boats?
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post #5 of Old 07-03-2011
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Since you stated that you are not connected to shore power you have no need to be concerned. Stray current from neighboring boats arrives on your boat via the ground wire on the shore power system. A galvanic isolator solves the problem by creating a threshold voltage for the shore power ground system. Obviously not connecting to it would also do the trick.
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