The National Electrical Manufacturers Association (NEMA) has published two new roadway and area lighting equipment standards, ANSI C136.25-2009 Ingress Protection (Resistance to Dust, Solid Objects, and Moisture) for Luminaire Enclosures and ANSI C136.35-2009 Luminaire Electrical Ancillary Devices (LEAD). ANSI C136.25-2009 provides guidance for protecting luminaires from ingress based on the anticipated environment and explains how [...]