Hi, This is my first post so bear with me. I am taking a adult workforce class and the lab I am working on is hooking up a 30 amp 4 wire tombstone plug for an electric cloths dryer. My lab partner and myself cannot find if there is a required or recommended height to install in a basement. Because a basement can be considered a damp area, we are thinking we should go 46" from the center of the plug. Does this sound right, we will have to explain to our instructor why we put it there. Any help and suggestions would be appreciated. Thanks.