Keep it in mind
Reverse polarity
Line voltage enters through neutral. Now go searching through your rig trying to find anything, anything at all to limitt current if any device in your rig fails a neutral earth isolation. A simple loss of earth bonding means your rig gets frame electrified. A bad leakage across neutral to earth means the offending appliance goes up in flames.
Test the plug then plug in. How hard can this be?
The level of intelligenge to RV should not be mandated to meet but not exceed the intelligence level of a six-year-old. Like putting training wheels and seat belt on a trail pony.
