Electolosys

[captddis]

Re: Electrolysis

Since you know what they want to see, why not disconnect the dock ground from the bonding system, let them inspect it, and then do what you want?

BTW, my 1976 LRC terminates the dock/earth ground at the stainless panel that has the shore power inlets on the boat. Earth ground goes nowhere else on the boat. A boat grounding system is established on the secondary side of the isolation transformer by connecting the secondary transformer winding center tap, the transformer case, the DC negative, and bonding system. There have been several discussions here on this subject, with no consensus. As I recall Hatteras started with the configuration I have and has moved to attaching the earth ground to the bonding system to comply with more recent requirements from the ABYC.

I believe the configuration I have on the LRC is the best for the boat to isolate it from undesirable conditions on the earth ground, and as best I understand it the ABYC believes earth ground connected to your bonding system offers greater protection for persons on the boat, and in the water around the boat.

Pete

The idea of disconnecting the ground did cross my mind.

 

[Maynard Rupp]

That is the best way of describing what has gone on regarding shore ground connections, Pete. The best compromise seems to be to disconnect the ground and connect it through a galvanic isolator. The only concern is monitoring the condition of the isolator itself.

 

[Pete]

Re: Electrolysis

Captddis, sometimes you have to implement stupid solutions to satisfy stupid people.

Pete

 

[Freestyle]

Armed with info from here and the many PM's, I made them re-test my boat with the inverter off and no wires connecting shore to the boat.

The tester guy grumbled the whole time saying that the inverter and the shore power wires would not change anything. To his credit, he admitted he was wrong and gave me a clean bill of health.

I later learned that the "electrolosys crisis" in the marina is really just one boat with paint burning off its stainless fittings. It is a Chinese made trawler. Stainless, like drywall, comes in different qualities from China.

My Hatt is 33 years old -- an age my friend's Kung Fu trawler probably won't see.

Bruce
Freestyle
1976 43 DCMY

 

[captddis]

Even though "expert" agreed with me that the boat was not a problem, Electrical expert dockmaster insisted that it had to have isolators installed. Doc recieved threatening letters and told me to put the isolators in. Installed Friday. Now they want to recheck the boat. i hate dealing with idiots who create problems that are not there.