Re: [Amel Yacht Owners] Re: Prop Shaft Electrolysis


Thanks again, Alan,
All the 220 appliances seem to work fine.  The only thing that tripped the breaker once was a blow dryer when other things were already running.

When you say disconnect things...I've opened all the breakers on the boat now (engine room, galley, nav station, winches, windlass, bow thruster) and still get the  3-8V DC voltage between 24V negative pole and bonding system. Out of curiosity, I checked the positive battery pole with the bonding system and got 19V.  Do I need to actually disconnect power to each appliance/pump/etc, or is turning the breaker off adequate?


From: "divanz620@... [amelyachtowners]"
To: amelyachtowners@...
Sent: Saturday, January 24, 2015 9:36 PM
Subject: Re: [Amel Yacht Owners] Re: Prop Shaft Electrolysis

Bills reply also helpful....
What I mean is that maybe there is an electrical device which is faulty and has a capacitive leak to ground.
As Bill says, likely cuplrits are the toilet macerator pumps.
As for the AC breaker causing similar symptoms...maybe you have a faulty 220VAC appliance as well i.e one with an internal ground all your 220VAC appliances work OK?  Do any of them trip the AC breaker when you turn them on ?
The only way to find it is to disconnect things until the symptoms go away and identify the culprit.
SV Elyse SM437
Gulf Harbour.

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