Roadway Lighting Equipment - Enclosed Side-Mounted Luminaires for Horizontal-Burning High-Intensity-Discharge Lamps - Mechanical Interchangeability of Refractors (This is Now Copyrighted by NEMA)
This standard covers the dimensional features and the material of refractors of the approximate shape shown in Figures 1 through 3@ and as described in ANSI C136.14-1988@ American National Standard for Roadway Lighting Equipment??Enclosed Side-Mounted Luminaires for Horizontal-Burning High-Intensity-Discharge Lamps.