NEMA - C78.42
Electric Lamps—High-Pressure Sodium Lamps
| Organization: | NEMA |
| Publication Date: | 1 January 2009 |
| Status: | active |
| Page Count: | 81 |
scope:
This standard sets forth the physical and electrical requirements for HPS lamps, to ensure performance and interchangeability. The data given also provide the basis for the electrical requirements for ballasts and ignitors, as well as the lamp-related requirements for luminaires. This standard covers only single-ended HPS lamps. Lamps with internal starting devices are not covered. This standard does include "improved color" HPS lamps (those lamps that have a color rendering index ≥ 60 and that operate on the same ballasts as the conventional lamps that they are intended to replace). However, color is not a standardized parameter. Luminous flux is not a standardized parameter either. This standard covers only 60 Hz operation of HPS lamps, on ballasts designed for HPS lamps.
Important Patent Disclaimer
Note: The user's attention is called to the possibility that compliance with this standard could require use of an invention covered by patent rights.
By publication of this standard, no position is taken with respect to the validity of any such claim(s) or of any patent rights in connection therewith. If a patent holder has filed a statement of willingness to grant a license under these rights on reasonable and non-discriminatory terms and conditions to applicants desiring to obtain such a license, then details may be obtained from the Secretary, or the NEMA website.
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