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Industry News
NEMA Publishes New Incandescent And Electric Lamp Standards
October 23, 2011

The The National Electrical Manufacturers Association (NEMA) has published ANSI ANSLG C78.21—Incandescent lamps: PAR and R Shapes and ANSI ANSLG C78.40—Electric Lamps: Specifications for Mercury Lamps.

Providing physical and electrical characteristics of incandescent lamps, ANSI/ANSLG C78.21-2011 describes PAR and R bulb shapes. The standard covers lamps with clear, frosted and lens end bulbs, clear and prescription lenses, and with various reflector coatings. Lamps described in this standard may contain either of two basic types of light sources: an incandescent filament or a tungsten halogen inner bulb. Sunlamps and heat lamps of the R type are included. However, lamps with discharge arc tubes are not included.

ANSI ANSLG C78.40-2011 sets forth the physical and electrical requirements for single-ended metal halide lamps operated on 60 Hz ballasts to ensure interchangeability and safety. The data given also provides the basis for the electrical requirements for ballasts as well as the lamp-related requirements for luminaires. Luminous flux and lamp color are not part of this standard.

ANSI ANSLG C78.21 and ANSI ANSLG C78.40 are available for download at no charge at www.nema.org/stds/c78-21.cfm and www.nema.org/stds/c78-40.cfm. A hardcopy for ANSI ANSLG C78.21-2011 may be purchased for $170 and ANSI ANSLG C78.40-2011 may be purchased for $180 by visiting global.ihs.com, or by contacting IHS at 800-854-7179 (within the U.S.), 303-397-7956 (international), 303-397-2740 (fax).

NEMA is the association of electrical equipment manufacturers, founded in 1926 and headquartered in Arlington, Virginia. Its member companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Worldwide annual sales of NEMA-scope products exceed $120 billion.

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