C405.2.1 Manual Lighting Controls
Each area enclosed by walls or floor-to-ceiling partitions shall have at least one manual control for the lighting serving that area. The required controls shall be located within the area served by the controls or be a remote switch that identifies the lights served and indicates their status.
- Areas designated as security or emergency areas that need to be continuously lighted.
- Lighting in stairways or corridors that are elements of the means of egress.
Each area that is required to have a manual control shall also allow the occupant to reduce the connected lighting load in a reasonably uniform illumination pattern by at least 50 percent. Lighting reduction shall be achieved by one of the following or other approved method:
- Controlling all lamps or luminaires;
- Dual switching of alternate rows of luminaires, alternate luminaires or alternate lamps;
- Switching the middle lamp luminaires independently of the outer lamps; or
- Switching each luminaire or each lamp.
- Areas that have only one luminaire, with rated power less than 100 watts.
- Areas that are controlled by an occupant-sensing device.
- Corridors, equipment rooms, storerooms, restrooms, public lobbies, electrical or mechanical rooms.
- Sleeping unit (see Section C405.2.3).
- Spaces that use less than 0.6 watts per square foot (6.5 W/m2).
- Daylight spaces complying with Section C405.2.2.3.2.