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Old 10-05-2019, 10:13 PM   #6
firstbase
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City: Jupiter, Florida
Country: United States
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,425
Thanks Steve. Nothing 230V onboard. A/C does take 50A. Everything else handled by 30A. I had zinc issues last year, replacing them every month, so had the system reviewed for issues, bonding checked, etc. Found a neutral-ground problem, pinched wire in the stove top and added a galvanic isolator. Also had some leakage in my very old shore power cables so replaced the 50A set. Still have the 30A but have never used it. Looks in much better shape but haven't hooked up a megger to it to check the insulation (hard to believe that I, one of the most severely electrically challenged guys in the world, owns a megger). After all this my whacked out readings went to normal and my zincs went from 1 month to 3-4. An electronics upgrade is in the not too distant future as well as new A/C units. After all is complete I will probably have everything checked out again before we shove off and actually go somewhere of significance.
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Hal
BLACK EYED SUSAN
Grand Banks 42 Classic
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