by jbs111709 j3 — November 23, 2009—The National Electrical Manufacturers Association (NEMA) has published LE 6-2009 Procedure for Determining Target Efficacy Ratings for Commercial, Industrial, and Residential Luminaires. The document, which was produced by NEMA’s Luminaire Section, was last updated in 2008.
LE 6 provides a procedure for the determination of the target efficacy rating (TER) for luminaires under laboratory test conditions and describes categories or types of products used in common indoor and outdoor lighting applications. It does not apply to luminaires for specialized applications, such as products intended to be aimed, accent luminaires, rough or hazardous use luminaires, or emergency lighting.
The 2009 revision includes updates to the calculation of the energy effectiveness factor and clarifications to the luminaire types and classifications. LE 6 is designed to help planners and designers compare various solutions in terms of their overall energy with a balanced consideration of the effectiveness of the light distribution.
LE 6 is recommended to be used only as a guide to help in the selection of luminaires since TER does not address application characteristics such as color, uniformity, glare, or other important considerations. The document may be downloaded at no charge, or a hard copy may be purchased for $55, by visiting the NEMA Web site.
