Do we have to use in use covers in a commercial plant. I am working in a meat packing plant where they wash the wall down daily? If so do they make a metal one?
I was always under the impression that in use covers were for devices that may get wet while in use or plugged in. Some inspectors say you have to put in use covers on temporary power poles. Our inspector says that most of the time the contractors unplug their extension cords at night or in the event of rain from the power pole so a simple weatherproof cover works.
I like the in use covers myself they just seem a little pricey and almost always get broken.