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TITLE 10 - ENERGY
CHAPTER II - DEPARTMENT OF ENERGY
SUBCHAPTER D - ENERGY CONSERVATION
PART 430 - ENERGY CONSERVATION PROGRAM FOR CONSUMER PRODUCTS
subpart b - TEST PROCEDURES
Appendix R to Subpart B of Part 430 - Uniform Test Method for Measuring Average Lamp Efficacy (LE) and Color Rendering Index (CRI) of Electric Lamps
1. Scope: This appendix applies to the measurement of lamp lumens, electrical characteristics and CRI for general service fluorescent lamps, and to the measurement of lamp lumens and electrical characteristics for general service incandescent lamps, incandescent reflector lamps and medium base compact fluorescent lamps.
2. Definitions 2.1To the extent that definitions in the IESNA and CIE standards do not conflict with the DOE definitions, the definitions specified in 1.2 of IESNA LM9, 3.0 of IESNA LM20, 2 of IESNA LM45, 2 of IESNA LM58, 1.2 of IESNA LM66 and IV of CIE Publication No. 13.2 shall be included.
2.2ANSI Standard means a standard developed by a committee accredited by the American National Standards Institute (ANSI).
2.3CIE means the International Commission on Illumination.
2.4CRI means Color Rendering Index as defined in 430.2.
2.5IESNA means the Illuminating Engineering Society of North America.
2.6Lamp efficacy means the ratio of measured lamp lumen output in lumens to the measured lamp electrical power input in watts, rounded to the nearest whole number, in units of lumens per watt.
2.7Lamp lumen output means the total luminous flux produced by the lamp, at the reference condition, in units of lumens.
2.8Lamp electrical power input means the total electrical power input to the lamp, including both arc and cathode power where appropriate, at the reference condition, in units of watts.
2.9Reference condition means the test condition specified in IESNA LM9 for general service fluorescent lamps, in IESNA LM20 for incandescent reflector lamps, in IESNA LM45 for general service incandescent lamps and in IESNA LM66 for medium base compact fluorescent lamps (see 10 CFR 430.22).
3. Test Conditions 3.1General Service Fluorescent Lamps: For general service fluorescent lamps, the ambient conditions of the test and the electrical circuits, reference ballasts, stabilization requirements, instruments, detectors, and photometric test procedure and test report shall be as described in the relevant sections of IESNA LM9 (see 10 CFR 430.22).
3.2General Service Incandescent Lamps: For general service incandescent lamps, the selection and seasoning (initial burn-in) of the test lamps, the equipment and instrumentation, and the test conditions shall be as described in IESNA LM45 (see 10 CFR 430.22).
3.3Incandescent Reflector Lamps: For incandescent reflector lamps, the selection and seasoning (initial burn-in) of the test lamps, the equipment and instrumentation, and the test conditions shall conform to sections 4.2 and 5.0 of IESNA LM20 (see 10 CFR 430.22).
3.4Medium Base Compact Fluorescent Lamps: For medium base compact fluorescent lamps, the selection, seasoning and stabilization of the test lamps, and the test conditions, shall be as described in Sections 1, 2, 3, and 7 of IESNA LM66 (see 10 CFR 430.22).
4. Test Methods and Measurements All lumen measurements made with instruments calibrated to the devalued NIST lumen after January 1, 1996, shall be multiplied by 1.011.
4.1General Service Fluorescent Lamps 4.1.1The measurement procedure shall be as described in IESNA LM9, except that lamps shall be operated at the appropriate voltage and current conditions as described in ANSI C78.375 and in ANSI C78.1, C78.2 or C78.3, and lamps shall be operated using the appropriate reference ballast as described in ANSI C82.3 (see 10 CFR 430.22).
4.1.2Lamp lumen output (lumens) and lamp electrical power input (watts), at the reference condition, shall be measured and recorded. Lamp efficacy shall be determined by computing the ratio of the measured lamp lumen output and lamp electrical power input at equilibrium for the reference condition.
4.2General Service Incandescent Lamps 4.2.1The measurement procedure shall be as described in IESNA LM45 (see 10 CFR 430.22). Lamps shall be operated at the rated voltage as defined in 430.2.
4.2.2The test procedure shall conform with section 7 of IESNA LM45 and the lumen output of the lamp shall be determined in accordance with Sections 4.2a or 4.2b of IESNA LM45 at the reference condition. Lamp electrical power input in watts shall be measured and recorded. Lamp efficacy shall be determined by computing the ratio of the measured lamp lumen output and lamp electrical power input at equilibrium for the reference condition. The test report shall conform to 8 of IESNA LM45 (see 10 CFR 430.22).
4.3Incandescent Reflector Lamps 4.3.1The measurement procedure shall be as described in IESNA LM20 (see 10 CFR 430.22). Lamps shall be operated at the rated voltage as defined in 430.2.
4.3.2.Lamp lumen output shall be determined as total forward lumens, and may be measured in an integrating sphere at the reference condition in accordance with 7.2 of IESNA LM20 (see 10 CFR 430.22) or from an average intensity distribution curve measured at the reference condition specified in 6.0 of IESNA LM20. Lamp electrical power input in watts shall be measured and recorded.
4.3.3Lamp efficacy shall be determined by computing the ratio of the measured lamp lumen output and lamp electrical power input at equilibrium for the reference condition. The test report shall conform to section 10.0 of IES LM20 (see 430.22).
4.4Medium Base Compact Fluorescent Lamps 4.4.1The measurement procedure shall be as described in IESNA LM66 (see 10 CFR 430.22) except that the provisions of IESNA LM66 which refer to operation of the lamp using a reference ballast do not apply to the testing of integrally ballasted compact fluorescent lamps. Lamps shall be operated at 120 V and 60 Hertz. Lamp lumen output shall be measured with the integral ballast according to section 11.3 of IESNA LM66. Lamp electrical power input in watts shall be measured and recorded.
4.4.2Lamp efficacy shall be determined by computing the ratio of the measured lamp lumen output and lamp electrical power input at equilibrium for the reference condition. The test report shall conform to section 13 of IESNA LM66 (see 10 CFR 430.22).
4.5Determination of Color Rendering Index 4.5.1The CRI shall be determined in accordance with the method specified in CIE Publication 13.2 for general service fluorescent lamps. The required spectroradiometric measurement and characterization shall be conducted in accordance with the methods given in IESNA LM58 and IESNA LM16 (see 10 CFR 430.22).
4.5.2The test report shall include a description of the test conditions, equipment, measured lamps, spectroradiometric measurement results and CRI determination.
[62 FR 29240, May 29, 1997]
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