I see this many times and it doesn't feel proper according to other nec code requirements, but I could be wrong. Using a surface mount 30/50 receptacle (dryer stove etc) A hole in the wall is used to have nm-b come out make a quick turn up and go into the knockout on the bottom of the surface mounted receptable. Doesn't this count as exposed wire that could be a potential danger. If so what code reference would prohibit or allow it.
Thanks
Thanks