In my experience most of the time the cause for burnt shore power
cords is bad wiring
on the boat
in question. You will want to be vigilant and check the plug constantly after repair
to see if it burns up again. If so you have an issue on your boat.
wiring on a boat is one of the few things you cannot afford to make mistakes
with if you are going to do it yourself and have little or no knowledge. I rewired my entire boat including all the panels
and I spent A LOT of time reading Nigel Caulder's Electrical Manual and double checking everything every step of the way. To the untrained mind electrical systems in multiple voltages are very complicated and require a lot of caution to get it right.