Hello, I am working on putting a fire rated automatic sliding door for a Class I Div II room. The PTO switches and overide for the door inside the rooms are XP rated. Now the proximaty sensors mounted above the rail of this doors which are outside the room and in the corridor wall space are neither XP rated nor do they have intrinsically safe circuiting. Do I have to mount these sensors outside the 3 feet boundary from the Door frame to comply with code requirements for the 3 feet boundary restriction from the opening of a Class I div II room? Though, I am mounting these sensors outside the room and the room is negatively pressurized to the corridor. I did not get the idea why I cannot mount switches or sensors with 24V wiring within the three feet boundary outside the room from the door frame. Would really appreciate any comments or feedbacks.
regards,
AP
regards,
AP