|  | 8.4 |

Planning Structured Cabling: Selection Practice

| 8.4.11 | Closet J

Potential wiring closet J is located at one end of the building. Its dimensions are approximately .9 m wide x 2.4 m deep. High voltage power lines enter the building through room J. High voltage electrical conduit leads from room J to other critical areas of the building. The floor is tiled. There is a dropped ceiling. The door is .9 m wide, and swings out when opened. Because it is equipped with potentially dangerous equipment, the door to the room is kept locked. The door can be unlocked from either inside or outside the room.

Lighting is provided by an overhead incandescent lighting fixture. The switch that turns the light on and off is located inside the doorway, on the right side. There are two electrical outlets in the room, and are located along opposite walls. All walls are of concrete block construction, and are covered with fire-retardant paint. A heating and cooling duct passes through the dropped ceiling space above the room, but there is no vent outlet into the room.