Is there any mention in that book whether or not you should ground the A/C line ( the green, when using white and black) from shore power to the same ground as the DC commonly using the (black wire as the ground and red as the positive) as the boat power like when you have a charger and using a night light.
I hear some folks are now using a yellow wire instead.
Oh, that's a separate topic that this Nigel dude never really gets on about.
However, there's another Nigel, Nigel Calder, who has written a complete book about maintaining a boat's electrical system. A very complex and complete discussion, full of terms like galvanic isolators and isolation transformers. The ABYC standards are complex and are not standing still on this topic. I bought the book, but unfortunately it's in a box somewhere in the garage, I think. Here are some references.
Boatowners' Illustrated Handbook of Wiring, Charlie Wing
International Marine, Camden, Maine The 12 Volt Doctor's Practical Handbook, Edgar J. Beyn
C. Plath, Annapolis, Maryland The 12 Volt Bible for Boats, Miner Brotherton
International Marine, Camden, Maine Boatowner's Mechanical and Electrical Manual, Nigel Calder
International Marine, Camden, Maine
Metal Corrosion in Boats, Nigel Warren
International Marine, Camden, MaineOne other note. It seems that the real trouble comes when you have an inboard motor, which creates an electrical path from your electrical system to the seawater. For a Montgomery, it would seem that all you need is to have an isolation transformer somewhere if you convert AC to DC.
Regards, John Fleming M-17: "Star Cross'd"
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