NEMA published ANSI C136.53-2017 American National Standard for Roadway and Area Lighting Equipment—Enclosed Pendant Mounted Luminaires. Developed by the ANSI Committee for Outdoor Lighting, this new standard for roadway lighting covers dimensional, maintenance, and light distribution features that are interchangeable in enclosed pendant-mounted luminaires. Luminaires of similar size, shape, and weight meeting the requirements of this standard may be used interchangeably within a system with the assurance that:
- They will fit the mounting pendant
- Pole strength requirements will not change
- Light distribution will be similar
- Similar maintenance procedures can be used
ANSI C136.53-2017 is available in hard copy or as an electronic download for $40.