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 Washington Administrative Code (Last Updated: November 23, 2016)
 Title 51. Enterprise Services, Department of (Building Code Council)
 Chapter 51-11C. State Building Code adoption and amendment of the 2015 edition of the International Energy Conservation Code, Commercial.

  Section 51-11C-40604. Section C406.4—Lighting controls option.  

Latest version.
  • C406.4 Enhanced digital lighting controls. Interior lighting shall be located, scheduled and operated in accordance with Section C405.2 and no less than 90 percent of the total installed interior lighting power shall be configured with the following enhanced control functions.
    1. Luminaires shall be configured for continuous dimming.
    2. Each luminaire shall be individually addressed.
    EXCEPTIONS:
    1. Multiple luminaires mounted on no more than 12 linear feet of a single lighting track and addressed as a single luminaire.
     
    2. Multiple linear luminaires that are ganged together to create the appearance of a single longer fixture and addressed as a single luminaire, where the total length of the combined luminaires is not more than 12 feet.
     
    3. Not more than eight luminaires within a daylight zone are permitted to be controlled by a single daylight responsive control.
     
    4. Luminaires shall be controlled by a digital control system configured with the following capabilities:
     
    4.1. Scheduling and illumination levels of individual luminaires and groups of luminaires are capable of being reconfigured through the system.
     
    4.2. Load shedding.
     
    4.3. In open and enclosed offices, the illumination level of overhead general illumination luminaires are configured to be individually adjusted by occupants.
     
    4.4. Occupancy sensors and daylight responsive controls are capable of being reconfigured through the system.
     
    5. Construction documents shall include submittal of a Sequence of Operations, including a specification outlining each of the functions required by this section.
    [Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-40604, filed 1/19/16, effective 7/1/16.]
RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-40604, filed 1/19/16, effective 7/1/16.