Energia i gospodarka · 15.12.2011

Energy Conservation Program for Certain Commercial and Industrial Equipment: Test Procedures for High-Intensity Discharge Lamps

The U.S. Department of Energy (DOE) proposes to establish its test procedures for high-intensity discharge (HID) lamps under the Energy Policy and Conservation Act of 1975 (EPCA), as amended. The proposed test procedures are based on industry standard procedures and practices already established by the American National Standards Institute (ANSI), the Illuminating Engineering Society of North America (IES), and the International Commission on Illumination (Commission Internationale de l'Eclairage (CIE)). The proposed test procedures would include measurement of parameters to enable calculation of lamp efficacy (in lumens per watt or lm/W), and would also provide for the efficiency measurement of directional lamps using center beam intensity (in candelas) and beam angle. The proposed procedures would also measure lumen maintenance (i.e., the fraction or percentage of lamp light output relative to initial output, over time) at 40 percent and 70 percent of rated lamp lifetime. Correlated color temperature (CCT) and color rendering index (CRI) would also be measured as potential means to delineate equipment classes for HID lamps. This notice of proposed rulemaking (NOPR) also discusses