What extent to the Receptacles, Switches and lighting for small aircraft type hangers. I will go back to text book when back in office, Just like to get a good article number on it. I don't no the use besides storage. The hangers are 20 feet high by 45. Are lights, Receptacles and switches fall under the Art 513. Also their is a Motor controller setup for bi-fold doors. Any input.
513.3 tells you what you are looking for.
513.3(A) and (B) tell you everything on/below floor level is classified up to 18 inches above the floor.
513.3(C) gives you additional classified areas within the aircraft vicinity, main emphasis is on the location of power plants and fuel tanks. second part is for a hanger where painting activity will occur.
Ventilation and methods of cutting off the area to effectively make a different space can come into play in defining classified areas.
Lights, switches, receptacles in a common storage hanger only present problems if below 18" above the floor or if they are too close to power plants/fuel tanks, I would think they mean where the usual storage location of the plane is when determining the location. If you have a plane that barely fits into the hanger (not uncommon at small rural airports) - you need to watch more closely where the hazardous location is, if they are not trying to stuff the plane into a tight box - your overhead dimensions are the main ones that can get you.
