Historical
ANSI C78.389-2004 (R2009)
for electric lamps - High Intensity Discharge - Methods of Measuring Characteristics
Describes the procedures to be followed and the precautions to be observed in measuring the electrical characteristics of HID lamps as specified in the ANSI specifications for mercury, high-pressure sodium and metal halide lamps, as referenced in Clause 2, Normative References.
NEMA: National Electrical Manufacturers Association [nema]