1、NEMA Standards PublicationNational Electrical Manufacturers AssociationNEMA WD 9-2013Dimmers, Photoelectric Controls, Presence Sensors, and Multi-Outlet Bars: Energy Consumption Testing and LabelingNEMA WD 9-2013 Dimmers, Photoelectric Controls, Presence Sensors, and Multi-Outlet Bars: Energy Consum
2、ption Testing and Labeling NEMA Standard WD 9-2013 Dimmers, Photoelectric Controls, Presence Sensors, and Multi-Outlet Bars: Energy Consumption Testing and Labeling Published by: National Electrical Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn, Virginia 22209 www.nema.org 2013
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12、e contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health- or safety- related information in this document shall not be attributable to NEMA and is solely
13、the responsibility of the certifier or maker of the statement. WD 9-2013 Page i 2013 National Electrical Manufacturers Association CONTENTS Page 1 SCOPE . 1 2 TERMS AND DEFINITIONS 1 3 MEASURING INSTRUMENTS . 1 4 ENERGY CONSUMPTION UNITS . 1 5 ENERGY CONSUMPTION TESTS 1 5.1 GENERAL 1 5.2 TESTING CON
14、FIGURATIONS 2 5.2.1 Device Without Neutral Connection . 2 5.2.2 Device with Neutral Connection. 3 5.2.3 Device Without Neutral Connection with Grounding Conductor Leakage Current 4 5.2.4 Device Without Load Connection 5 5.2.5 Alternate Method (Power InPower Out) . 5 6 ENERGY CONSUMPTION INFORMATION
15、6 ANNEX A EXAMPLES OF ENERGY CONSUMPTION INFORMATION (INFORMATIVE) 7 ANNEX B EXAMPLE OF 3-UNIT SAMPLE AND REPORTING THE ENERGY CONSUMPTION MEASUREMENT (INFORMATIVE) 8 FIGURES Page Figure 51 Device Without Neutral Connection 2 Figure 52 Device with Neutral Connection 3 Figure 53 Device Without Neutra
16、l Connection with Grounding Conductor Leakage Current . 4 Figure 54 Device Without Load Connection . 5 Figure 55 Alternate Method (Power InPower Out) 5 Figure A1 Label Examples: Device with Full Load and Standby Energy Consumption . 7 Figure A2 Label Examples: Device Without Standby Energy Consumpti
17、on 7 TABLES Page Table A1 Example: English and Spanish Translation . 7 Table B1 Data Collected from Measurement Method . 8 Table B2 t-Values for Different % Confidence Levels . 8 WD 9-2013 Page ii 2013 National Electrical Manufacturers Association FOREWORD This is the first edition of NEMA WD 9-2013
18、 (hereinafter referred to as NEMA WD 9). It does not replace another publication. The effective date is the publication date. The purpose of NEMA WD 9 is to provide necessary guidance for manufacturers and importers of dimmers, photoelectric controls, presence sensors, and multi-outlet bars to meet
19、in a uniform manner the energy consumption reporting requirements of the Mexican “Law for Sustainable Energy Use,” published in the Official Gazette of the Federation on November 28, 2008, Article 23. The content of NEMA WD 9 is, therefore, based on: a) Official Gazette of the Federation, September
20、10, 2010: “Catalog of equipment and appliances for which manufacturers, importers, distributors, and sellers shall include information about their energy consumption.” b) Official Gazette of the Federation, March 14, 2011: “Formats and requirements for the information that shall be submitted by manu
21、facturers and importers of equipment and appliances that use energy for their operation.” Although the Mexican law was the catalyst for developing NEMA WD 9, equipment energy consumption and efficiency are becoming increasingly important topics for consumers and equipment manufacturers worldwide. Id
22、eally, the content of NEMA WD 9 will contribute to an international or regional standard for the energy consumption testing and labeling of dimmers, photoelectric controls, presence sensors, and multi-outlet bars. Consequently, the structure and drafting of NEMA WD 9 follows the rules established by
23、 the International Electrotechnical Commission for its standards. NEMA WD 9 was developed within NEMAs Wiring Device Section, which at the time of development consisted of the following member companies: 2D2C, Inc. Eatons Cooper Wiring Devices Hubbell Incorporated Interpower Corporation KCSM Inc
24、. Legrand/Pass b) Total harmonic voltage content shall not exceed 2% of the fundamental when supplying the device under test, harmonic content being the root mean square summation of the individual harmonics up to and including the 13th; and c) Voltage crest factor (peak to rms) shall be between 1.
25、34 and 1.49. The number of samples selected for testing shall be at least three devices, and the reported energy consumption measurement shall be 5% greater than the 97.5% confidence level of the measurements, based on the actual number of samples tested. Auxiliary power outputs and power supplies t
26、o external devices shall be fully loaded. Note: Annex B contains an example of taking a 3-unit sample and reporting the energy consumption measurement. WD 9-2013 Page 2 2013 National Electrical Manufacturers Association 5.2 TESTING CONFIGURATIONS Full load and standby mode power measurements and cal
27、culations shall be made according to the figures shown in 5.2.1 through 5.2.4 depending on the device type and branch circuit connections required for proper operation. Alternately, device power measurements and calculations may be performed by measuring the power being supplied to the device and su
28、btracting the power in the load(s). This method is represented in Section 5.2.5. 5.2.1 Device Without Neutral Connection See Figure 51. DU TL o a d 1Po w e r Su p p l yV1 A1P1V2 A2P2L o a d 2A = Amperemeter DUT = Device under Test Power = P1 for single controlled load Power = P1 + P2 + . . . + Pn fo
29、r multiple loads V = Voltmeter Figure 51 Device Without Neutral Connection WD 9-2013 Page 3 2013 National Electrical Manufacturers Association 5.2.2 Device with Neutral Connection See Figure 52. DU TL o a d 1Po w e r Su p p l yV1 A1P1V3 A3P3L o a d 2A = Amperemeter DUT = Device under Test Power = P1
30、 + P2 for single controlled load Power = P1 + P2 + P3 + . . . + Pn for multiple loads V = Voltmeter Figure 52 Device with Neutral Connection WD 9-2013 Page 4 2013 National Electrical Manufacturers Association 5.2.3 Device Without Neutral Connection with Grounding Conductor Leakage Current See Figure
31、 53. DU TL o a d 1Po w e r Su p p l yV1 A1P1V3 A3P3L o a d 2A = Amperemeter DUT = Device under Test Power = P1 + P2 for single controlled load Power = P1 + P2 + P3 + . . . + Pn for multiple loads V = Voltmeter Figure 53 Device Without Neutral Connection with Grounding Conductor Leakage Current WD 9-
32、2013 Page 5 2013 National Electrical Manufacturers Association 5.2.4 Device Without Load Connection See Figure 54. DU TPo w e r Su p p l yA = Amperemeter DUT = Device under Test Power = P1 V = Voltmeter Figure 54 Device Without Load Connection 5.2.5 Alternate Method (Power InPower Out) See Figure 55
33、. A = Amperemeter DUT = Device under Test Power = P1 - P2 for single controlled load Power = P1 - P2 - P3 - . . . - Pn for multiple loads V = Voltmeter Figure 55 Alternate Method (Power InPower Out) WD 9-2013 Page 6 2013 National Electrical Manufacturers Association 6 ENERGY CONSUMPTION INFORMATION
34、Energy consumption at full load and in standby mode (if applicable) shall be marked on the device and/or the device packaging such that it is easily visible to the end user. For equipment with multiple supply voltages, the manufacturer shall report the energy consumption at the rated supply voltage
35、that results in maximum energy consumption. In addition, the manufacturer may report the energy consumption for other rated supply voltages. Markings and labels shall be clear and legible when received by the customer. Note: Annex A provides examples of energy consumption labeling. WD 9-2013 Page 7
36、2013 National Electrical Manufacturers Association ANNEX A EXAMPLES OF ENERGY CONSUMPTION INFORMATION (INFORMATIVE) The following information and examples are provided for guidance only. Table A1 Example: English and Spanish Translation English Spanish Translation Full load energy consumption Consum
37、o de energa en operacin Standby energy consumption Consumo de energa en modo de espera Figure A1 Label Examples: Device with Full Load and Standby Energy Consumption Figure A2 Label Examples: Device Without Standby Energy Consumption Consumo de energa Carga completa: 0,20 Wh En espera No aplica Por
38、cantidad de producto: No aplica Consumo de energa en carga completa 0,20 Wh Consumo de energa en modo de espera No aplica Por cantidad de producto: No aplica Consumo de energa Carga completa: 0,20 Wh En espera: 0,05 Wh Por cantidad de producto: No aplica Consumo de energa en carga completa 0,20 Wh C
39、onsumo de energa en modo de espera 0,05 Wh Consumo de energa por cantidad de producto: No aplica WD 9-2013 Page 8 2013 National Electrical Manufacturers Association ANNEX B EXAMPLE OF 3-UNIT SAMPLE AND REPORTING THE ENERGY CONSUMPTION MEASUREMENT (INFORMATIVE) Annex B provides an example of a 3-unit
40、 sample and an example of how the energy consumption measurement is reported. See Tables B-1 and B-2 for example data. Table B1 Data Collected from Measurement Method DUT Number Standby Mode Full Load (High End) 1 0.8188 6.4840 2 0.8227 6.5944 3 0.8192 6.4520 Table B2 t-Values for Different % Confid
41、ence Levels n % Confidence 0.9 0.95 0.975 0.99 0.995 0.999 1 3.078 6.314 12.706 31.821 63.657 318.313 2 1.886 2.92 4.303 6.965 9.925 22.327 3 1.638 2.353 3.182 4.541 5.841 10.215 4 1.533 2.132 2.776 3.747 4.604 7.173 5 1.476 2.015 2.571 3.365 4.032 5.893 Note: This table can typically be found in an
42、y statistics book. First, calculate the mean of the sample, X, as follows: Where: n is the number of units tested is the sum of the results of n tests To calculate StandbyMode Average (XSBM): XSBM = (0.8188 + 0.8227 + 0.8192)/3 = 0.8202 Watts To calculate Full Load Average (XFL): XFL = (6.4840 + 6.5
43、944 + 6.4520)/3 = 6.5101 Watts WD 9-2013 Page 9 2013 National Electrical Manufacturers Association Then, calculate the standard deviation, s, as follows: Where: X is the mean of sample n is the number of units tested xi is the ith test result Standby Mode Standard Deviation is: sSBM = 0.0017 Full Lo
44、ad Standard Deviation is: sFL = 0.0610 Last, calculate the conservative (5% worse) UCL at 97.5% confidence, UCL, as follows: Where: X is the mean of sample t is the value for 97.5% confidence from the table above s is the sample standard deviation n is the number of units tested Using the formulas i
45、n this example, the Standby Mode Conservative UCL is: Conservative UCLSBM = 0.8669 Watts Using the formulas in this example, the Full Load Conservative UCL is: Conservative UCLFL = 6.9707 Watts These are the power consumptions that will be reported. WD 9-2013 Page 10 2013 National Electrical Manufacturers Association NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION 1300 NORTH 17TH STREET, SUITE 900 ROSSLYN. VA 22209www.NEMA.orgTO ORDER ADDITIONAL NEMA STANDARDS VISITWWW.GLOBAL.IHS.COM OR CALL 1-800-854-7179/1-303-397-79565612_0514TB
