[Electric Boats] DC/DC Converters

 

Hi Folks,
I have a question about DC/DC converters, the isolated type in particular. If you were to install isolated DC/DC converters from a 48V propulsion battery bank to drive the 12V house loads, obviously you would be defeating the purpose of the isolation by connecting the negative outputs of the converters to boat ground. I guess some of the things that come to mind are: 1) How does this scheme fit in with ABYC standards as I don't see isolated DC systems addressed there? 2)Would the 48V battery bank be connected to boat ground or left floating as well? 3) Would then only the DC bonding and AC safety ground be connected to boat ground?

Thanks,
Chris

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