I agree the concept is valid but in practice it is ridiculous. Most "in use" covers I have seen would not last a week at a construction site. They would be broken.
I still think Reno has the best idea. Give them a tough box that they can't break.
I also wonder why the receptacle to plug cap connection has to be so dry when the other end of that extension cord is sitting on the ground in the rain.
It even gets sillier when you get to lighting. A PAR 38 socket can be pointed up aimed into the trees, collecting water and it doesn't even have to be GFCI protected if it is not cord and plug connected.
Why is it so hard to understand anything outside is a "wet" location whether we want to admit it or not?
