WRT hospital outlets - they're typically orange and that means isolated ground - i.e. the ground screw is not attached to the mounting lugs.[/QUOTE]
Correction, while isolated ground "orange" are readily common in hospitals and other installations, that's not what I was referring to I an earlier reply in this thread.
You can purchase
"hospital grade or specification" in standard configuration or any other for that matter, the quality will far exceed the hardware
store stuff, commercial
spec, etc..... Isolated ground receptacles are not meant for use on boat.