ROSSLYN, VA, December 4, 2006-The National Electrical Manufacturers Association (NEMA), on behalf of the American National Standard Lighting Group (ANSLG) has published ANSI_ANSLG C82.14-2006, American National Standard for Lamp Ballasts-Low-Frequency Square Wave Electronic Ballasts-for Metal Halide Lamps.
This standard provides specifications for and operating characteristics of low frequency square wave electronic ballasts for metal halide lamps. Electronic ballasts are devices that use semiconductors to control lamp starting and operation. The ballasts operate from multiple supply sources of 600V maximum at a frequency of 60 hertz. The output frequency of electronic ballasts may be of some frequency other than 60 hertz. This standard only covers lamp operating current frequencies from greater than 60 hertz up to 400 hertz (some exclusionary frequency ranges may apply). An electronic square wave ballast is an electronic ballast whose operating lamp current waveform is essentially a square wave with defined rise/fall times stated in the C78.43 lamp standard.
ANSI_ANSLG C82.14-2006 may be downloaded free, or a hardcopy purchased for $50.00 by visiting NEMA's website at www.nema.org/stds/C82-14.cfm, or by contacting IHS at (800) 854-7179 (within the U.S.), (303) 397-7956 (international), (303) 397-2740 (fax).
NEMA is the trade association of choice for the electrical manufacturing industry. Founded in 1926 and headquartered near Washington, D.C., its 430 member companies manufacture products used in the generation, transmission and distribution, control, and end-use of electricity. These products are used in utility, medical imaging, industrial, commercial, institutional, and residential applications. Domestic production of electrical products sold worldwide exceeds $120 billion. In addition to its headquarters in Rosslyn, Virginia, NEMA also has offices in Beijing, Săo Paulo, and Mexico City.