NEMA BL 3-2013 Dimming Ballast Energy Performance.pdf

1、NEMA Standards PublicationNational Electrical Manufacturers AssociationNEMA BL 3-2013Dimming Ballast Energy PerformanceNEMA BL-3-2013 Dimming Ballast Energy Performance Published by National Electrical Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn, Virginia 22209 Approved Octob

2、er 15, 2013 www.nema.org Copyright 2013 by the National Electrical Manufacturers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pa

3、n American Copyright Conventions. 2013 National Electrical Manufacturers Association NOTICE AND DISCLAIMER The information in this publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus

4、does not necessarily mean that there is unanimous agreement among every person participating in the development of this document. National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document contained herein is one, are developed through a voluntar

5、y consensus standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. While NEMA administers the process and establishes rules to promote fairness in the development of consensus, it doe

6、s not write the document and it does not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of an

7、y nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, expressed or implied, as to the accuracy or completeness of any

8、information published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standar

9、d or guide. In publishing and making this document available, NEMA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on

10、 his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user

11、 may wish to consult for additional views or information not covered by this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purp

12、oses. Any certification or other statement of compliance with any health or safetyrelated information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. 2013 National Electrical Manufacturers Association TABLE OF CONTENTS S

13、ection 1 General 5 1.1 Scope 5 1.2 Normative References 5 1.3 Definitions 5 Section 2 Background. 6 Section 3 On-State Power Consumption. 7 Section 4 Off-State Power Consumption. 8 Appendix A (Informative) 9 2013 National Electrical Manufacturers Association Foreword The NEMA Ballast Section has pre

14、pared this standard, Dimming Ballast Energy Performance. This standard provides a methodology for applying existing test methods for program start ballasts to fluorescent dimming ballasts and provides a way to calculate BLE for fluorescent dimming ballasts. In the preparation of this standard, input

15、 of users and other interested parties has been sought and evaluated. Inquiries, comments, and proposed or recommended revisions should be submitted to the concerned NEMA product subdivision by contacting: Senior Technical Director, Operations National Electrical Manufacturers Association 1300 North

16、 17th Street, Suite 900 Rosslyn, Virginia 22209 Section approval of the standard does not necessarily imply that all section members voted for its approval or participated in its development. At the time the standard was approved, the Ballast Section was composed of the following members: Acuity Bra

17、nds Lighting Atlas Lighting Products, Inc. Crestron DALI & LED Drivers Eatons Cooper Lighting ELB Electronics, Inc. GE Lighting Halco Lighting Technologies Hubbell Lighting, Inc. Leviton Lighting & Energy Solutions Lutron Electronics Company, Inc. MaxLite OSRAM SYLVANIA Inc. Philips Lighting Electro

18、nics North America Sunpark Electronics Corp. Technical Consumer Products, Inc. Ultrasave Lighting Ltd. Universal Lighting Technologies Venture Lighting International 2013 National Electrical Manufacturers Association Section 1 GENERAL 1.1 SCOPE This standard provides a methodology for applying exist

19、ing test methods for program start ballasts to fluorescent dimming ballasts and provides a way to calculate BLE for fluorescent dimming ballasts. NEMA offers this standard to augment and harmonize with the 2014 Department of Energy (DOE) fluorescent ballast regulations. By design, dimming ballasts a

20、re already energy saving, but this standard would provide the methodology to also calculate new BLE limits for fluorescent dimming ballasts. This standard offers BLE limits for ballasts of common four foot bi-pin lamps, such as T8 and T5 lamps that are not covered by the most recent Federal rulemaki

21、ng. 1.2 NORMATIVE REFERENCES The following normative documents contain provisions which, through reference in this text, constitute provisions of this standards publication. By reference herein these publications are adopted in whole or in part as indicated in this standards publication. Federal Reg

22、ister, Vol 76, No 219, November 14 2011, Table I.1, p. 70549 Federal Register, Vol 76, No 86, May 4, 2011, 10 CFR Part 430, P 25211, Energy Conservation Program: Test Procedures for Fluorescent Lamp Ballasts Federal Register, Vol 76, No 86, May 4, 2011, p. 25244, Total Test Ballast Lamp Arc Power di

23、vided by Ballast Input Power NEMA LL 9-2011, Dimming of T8 Fluorescent Lighting Systems IEC 60081 Ed 5 A5, Sheet 6840-5, Double-capped fluorescent lamps - Performance specifications, July 19, 2013 IEC 60081 Ed 5 A5, Sheet 6640-6, Double-capped fluorescent lamps - Performance specifications, July 19,

24、 2013 1.3 DEFINITIONS Ballast Luminous Efficiency (BLE) the ratio of lamp arc power to ballast input power Standby Power1 the conditions in which an energy using product is connected to main power source and offers one or more of the following user oriented or protected functions: to facilitate the

25、activation or deactivation of other functions (including active mode) by remote switching (including remote control), internal sensor, or timer. continuous functions, including information or status displays (including clocks) or sensor-based functions. 1 Adopted from Federal Register 10 CFR Part 43

26、0.2. 2013 National Electrical Manufacturers Association Section 2 BACKGROUND This standard fills a gap in Federal standards for Ballast Luminous Efficiency. Today ballast luminous efficiency standards exist for dimming ballasts intended to operate with T12 fluorescent lamps only (Federal Register, V

27、ol 76 No 219, p. 70629), but dimming ballasts for other lamp types do not have BLE standards. The topic of ballast luminous efficiency is of interest to many parties, and a NEMA standard can be adopted for regulatory use. NEMA LL9 Fluorescent System Dimming Standard provides significant information

28、for the proper lamp and ballast compatibility for reliable long term dimming system operation. The DOE has developed uniform requirements for programmed start ballasts in the course of Ballast rulemaking. Now, NEMA proposes to combine the new 2014 DOE Standard for Programmed Start ballasts with the

29、lamp compatibility aspects of the LL9 document. The resulting proposal will suggest dimming ballasts be evaluated to BLE performance metrics similar to the Programmed Start levels but adjusted to provide for some additional losses due to the added control complexity and also for the heating power lo

30、st in the lamp cathodes. As mentioned, due to the inherent energy savings when a lamp is dimmed, it is proposed that dimming ballasts be evaluated in the same manner as programmed start ballasts, that is, measured at the highest applicable nominal line voltage, and only at the full power setting whi

31、le on a lamp load per the published test plan. Values of supplemental filament heat for T5 lamps are taken from the relevant IEC data sheets. Values of supplemental filament heat for T8 lamps are taken from NEMA LL 9. Since each manufacturer has a slightly different linearity with respect to the 0-1

32、0V or other control type and internal references will yield slightly different operating points, this could create confusion as to the correct test output level for any setting below full power. The measurement at full power effectively removes any undue complications in the test plan and measuremen

33、t setup, since not all dimming ballasts provide identical dimming response to a given control input. Testing at dimmed levels also introduces additional uncertainty due to the higher frequencies and instrumentation limitations. The measurement is also more subject to wiring and test setup difference

34、s. Parasitic losses in the fixture and test equipment will increase variability between tests and test sites. For these reason, it is strongly recommended that measurements be limited to full power and where applicable, standby conditions only. Consistent with DOEs Final Rule for Program Start balla

35、sts, T8 dimming ballasts with a maximum arc current not exceeding 140mA are considered automatically compliant with this standard. 2013 National Electrical Manufacturers Association Section 3 ON-STATE POWER CONSUMPTION Procedure: 1) Attach a single dimming ballast to lamps, turn on to full light lev

36、el, and let temperatures stabilize. 2) Measure the input power (Pin) 3) Measure the power dissipated in each lamp (Lamp arc power = Lamp arc voltage * Lamp arc current) and add to get the total output power (Parc), using procedure described in Federal Register Federal Register, Vol 76, No 86, pp. 25

37、225-25228, Figure 1 for rapid start and programmed start ballasts 4) Calculate BLE = Parc/Pin 5) Adjust the dimming ballast to the minimum light level setting 6) Measure the input power (Pin,dim) Compliance Requirements: 1) BLE must be larger than the value provided in Table 1. 2) Pin,dim must be le

38、ss than maximum power Pin TABLE 3-1 BLE LIMITS FOR DIMMING BALLASTS Lamp Type Number of Lamps Dimming Ballast BLE Minimum F32T8 1 0.741 F32T8 2 0.760 F32T8 3 0.769 F32T8 4 0.775 F28T5 1 0.785 F28T5 2 0.807 F54T5 1 0.816 F54T5 2 0.834 2013 National Electrical Manufacturers Association Section 4 OFF-S

39、TATE POWER CONSUMPTION Procedure: 1) Measure the standby power consumption for a single dimming ballast (Pstandby), using procedure described in Federal Register Vol 76, No 86, pp. 25228-25229 Compliance Requirements: 2) Pstandby must be less than 2.5 watts per ballast 2013 National Electrical Manuf

40、acturers Association APPENDIX A (INFORMATIVE) MODEL FOR DIMMING BALLAST BLE LIMITS 2013 National Electrical Manufacturers Association TABLE A-1 NUMERICAL EXAMPLE Lamp Type F32T8 F32T8 F32T8 F32T8 F28T5 F28T5 F54T5 F54T5 Non-Dim P.S. Coefficient A A 0.993 0.993 0.993 0.993 0.993 0.993 0.993 0.993 Non

41、-Dim P.S. Coefficient B B 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 Non-Dim P.S. Coefficient C C 0.37 0.37 0.37 0.37 0.37 0.37 0.37 0.37 Number of Lamps 1 2 3 4 1 2 1 2 Single Lamp Arc Power (W) 29 29 29 29 28 28 54 54 Total Lamp Arc Power (W) Parc 29 58 87 116 28 56 54 108 Existing Non-Dim BLE Limit

42、BLE 0.866 0.892 0.905 0.913 0.865 0.891 0.889 0.911 Dimming Reference (1) (1) (1) (1) (2) (2) (3) (3) Minimum Filament Resistance (ohm) 10 10 10 10 36.6 36.6 7.0 7.0 Maximum Filament Voltage 5.3 5.3 5.3 5.3 7.7 7.7 4.35 4.35 Single Filament Power (W) 2.81 2.81 2.81 2.81 1.6 1.6 2.7 2.7 Total Filamen

43、t Power (W) Pfil 5.6 11.2 16.9 22.5 3.2 6.5 5.4 10.8 Ratio of filament to arc power Pfil/Parc 0.194 0.194 0.194 0.194 0.116 0.116 0.100 0.100 Dimming BLE Limit BLE 0.741 0.760 0.769 0.775 0.785 0.807 0.816 0.834 References (1) NEMA LL9-2011 (2) IEC 60081 Ed 5 A5, Sheet 6640-6 (3) IEC 60081 Ed 5 A5, Sheet 6840-5 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