Product Selection Guide Page 74 Product Selection Guide-11th Edition

PSG11 74 SURFACE/WALL www.lithonia.com LITHONIA LIGHTING COMMERCIAL INDOOR Smart+Simple Stairwell Lighting PRODUCT INFORMATION According to the California Lighting Technology Center (cltc.ucdavis.edu), 30% of lighting energy on a typical college campus is spent on corridors and stairwells. Lighting in these transitional areas can easily be upgraded to reduce energy consumption and improve visibility for normal or emergency egress. The NFPA 101 Life Safety Code requirements ensure safe egress at all times in these areas. NFPA 101 Section 7.8.1.3 requires the floors and other walking surfaces in and around an exit shall be a minimum illumination of at least 10 fc during use (new stairs), and at least 1 fc, measured at the floor on existing or renovation projects. Supported by the Department of Energy (DOE), provisions of their commercial building code regarding energy efficiency have been updated to meet or exceed ASHRAE 90.1-20101: Controls Requirements. Stairwell lighting must now have a control device that automatically reduces the lighting power by at least 50% when area is unoccupied. For stairwells in educational facilities, the IES recommends 2.5 to 10 fc for typical activity and 5 to 20 fc for high activity. Lighting with integrated occupancy sensors and sequential controls provide a simple solution to maximize energy savings in slow traffic or low-occupied areas. Integral control options include dual technology micro-sensor (occupancy sensors) and a short range sequential stairwell option. The sequential control options keep occupants safe and comfortable when the space is occupied while saving energy and money when not is use. Additionally, the sensor is designed with fail-to-on feature preventing any disruption in operation. 1 http://lightingcontrolsassociation.org/ashrae-publishes-2010-version-of-90-1-standard/ 2 SensorSwitch data-logger study, University of Minnesota Typical Stairwell: 2 .

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