The National Electrical Manufacturers Association has published EM 1-2010 Exit Sign Visibility Testing Requirements for Safety and Energy Efficiency. The standard, last published in 2007, was produced by NEMA’s Emergency Lighting Section.
EM 1 establishes a high performance category for internally illuminated exit signs that goes beyond former ENERGY STAR requirements and existing CSA and UL standards for those products. This standard forms the basis of the emerging NEMA Premium Exit Sign program. The program, like the standard, will be based on performance, rather than simply energy efficiency.
The contents and scope of EM 1 may be viewed, or a hard copy or electronic copy purchased for $69, by visiting www.nema.org/stds/em1.cfm, or by contacting IHS at global.ihs.com.
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