1、 NEMA SSL 1 ELECTRONIC DRIVERS FOR LED DEVICES, ARRAYS, OR SYSTEMSNEMA Standards Publication SSL 1-2010 Electronic Drivers for LED Devices, Arrays, or Systems Published by: National Electrical Manufacturers Association 1300 North 17thStreet, Suite 1752 Rosslyn, Virginia 22209 Approved January 7, 201
2、1 www.nema.org Copyright 2010 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 Pan American
3、 Copyright Conventions. 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 does not necessarily mean that there is unanimous agreement a
4、mong every person participating in the development of this document. NEMA standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the views
5、 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 does not write the document and it does not independently test, evaluate, or verify the accuracy or completeness
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7、ing 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 information published herein, and disclaims and makes no warranty that the information in this document will
8、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 standard or guide. In publishing and making this document available, NEMA is not undertaking to render professional
9、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 his or her own independent judgment or, as appropriate, seek the advice of a competent professional in deter
10、mining 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 may wish to consult for additional views or information not covered by this publication. NEMA has no power,
11、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 purposes. Any certification or other statement of compliance with any health or safety-related information in thi
12、s document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. SSL 1-2010 Page i CONTENTS Forewordii Section 1 GENERAL . 1 1.1 Scope. 1 1.2 References 1 1.2.1 Normative References. 1 1.2.2 Informative References . 2 1.3 Definitions 2 Section
13、 2 LED DRIVER RATINGS 3 2.1 Common Voltage Ratings (Nominal System Voltage) 3 2.2 Supply (Input) Voltage Rating .3 2.3 LED Load (Array, Module, or Package) 3 2.4 LED Driver Operating Temperatures. 4 Section 3 DRIVER PERFORMANCE 5 3.1 General 5 3.1.1 Operating Conditions. 5 3.2 LED Driver Input 5 3.2
14、.1 Operating Supply Voltages 5 3.2.2 Input Current Harmonic Distortion. 5 3.2.3 Input Inrush Current. 5 3.2.4 Input Current 5 3.2.5 Input Power . 5 3.2.6 Power Factor . 6 3.3 Driver Output . 6 3.3.1 Constant Voltage Regulated Output 6 3.3.2 Constant Current Regulated Output 6 3.4 Dimming Regulated O
15、utput . 7 3.4.1 Constant Voltage or Current Regulated Output 7 Section 4 EMC EMISSION AND IMMUNITY REQUIREMENTS 8 4.1 Electromagnetic Interference Suppression . 8 4.2 Line Transient (Surges). 8 4.2.1 Non-Roadway Applications . 8 4.2.2 Roadway Applications . 8 Section 5 DRIVER SAFETY 9 5.1 Remote Dri
16、ver . 9 Section 6 APPLICATION REQUIREMENTS 10 6.1 Audible Sound Level 10 6.2 Power-Temperature Cycle (PTC) 10 6.3 Supply Voltage Switching11 6.4 Driver Efficiency. 11 6.5 Driver Standby Loss 11 6.6 Dimming. 11 6.7 Reliability . 12 Section 7 LED DRIVER MARKING. 13 7.1 Permanent Marking . 13 7.2 Rated
17、 Supply Voltage Designation 13 7.3 Output Regulation 13 Copyright 2010 by the National Electrical Manufacturers Association. SSL 1-2010 Page ii Foreword The NEMA Solid State Lighting Section has developed this standards publication. In its preparation, input of users and other interested parties was
18、 sought and evaluated. Inquiries, comments, and proposed or recommended revisions should be submitted to the concerned NEMA product subdivision by contacting: Vice President, Technical Services National Electrical Manufacturers Association 1300 North 17thStreet, Suite 1752 Rosslyn, Virginia 22209 Se
19、ction 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 Solid State Lighting Section was composed of the following members: Amerlux Global Lighting Solutions Atlas Lightin
20、g Products, Inc. Cooper Industries plc Cree, Inc. Dialight Corporation EiKO, Ltd. EYE Lighting International of N.A., Inc.GE Hatch Transformers, Inc. Hubbell Incorporated LEDnovation, Inc. Leviton Manufacturing Co., Inc. Luminus Devices, Inc. Lutron Electronics Company, Inc. MaxLite Nichia America C
21、orporation Osram Sylvania Inc. Philips Lighting Company Ruud Lighting Inc. Schneider Electric Soraa Inc. Technical Consumer Products, Inc. TerraLUX Inc. Toshiba International Corporation Universal Lighting Technologies Copyright 2010 by the National Electrical Manufacturers Association. SSL 1-2010 P
22、age 1 Section 1 GENERAL 1.1 SCOPE This standard provides specifications for and operating characteristics of non-integral electronic drivers (power supplies) for LED devices, arrays, or systems intended for general lighting applications. Electronic drivers are devices that use semiconductors to cont
23、rol and supply dc power for LED starting and operation. The drivers operate from multiple supply sources of 600 V maximum at a frequency of 50 or 60 hertz.1.2 REFERENCES 1.2.1 Normative References The following standards contain provisions, which through reference in this text, constitute provisions
24、 of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. American Nati
25、onal Standards Institute (ANSI) 25 West 43ndStreet New York, NY 10036 ANSI C82.13-2002 Lamp BallastsDefinitionsfor Fluorescent Lamps and BallastsANSI C82.77-2002 Harmonic Emission LimitsRelated Power Quality Requirements for Lighting Equipment ANSI C84.1-2006 Electric Power Systems and EquipmentVolt
26、age Ratings (60 Hertz) ANSI/IESNA RP-16-2010 Nomenclature and Definitions for Illuminating Engineering ANSI Z535.16 Safety Standards Institute of Electrical and Electronics Engineers (IEEE) 445 Hoes Lane Piscataway, NJ 08854-4141 IEEE 100-2000 The Authoritative Dictionary of IEEE Standards Terms IEE
27、E C62.41-1991 Recommended Practice on Surge Voltages in Low-Voltage AC Power Circuits National Electrical Manufacturers Association 1300 North 17thStreet, Suite 1752 Rosslyn, VA 22209 NEMA 410-2004 Performance Testing for Lighting Controls and Switching Devices with Electronic Fluorescent Ballasts N
28、EMA SSL 6-2010 Solid State Lighting for Incandescent ReplacementDimming Copyright 2010 by the National Electrical Manufacturers Association. SSL 1-2010 Page 2 Underwriters Laboratories Inc. 333 Pfingsten Road Northbrook, IL 60062 UL 8750-2009 Standard for Safety of Light Emitting Diode (LED) Equipme
29、nt for Use in Lighting Products UL 1993-2009 Self-Ballasted Lamps and Lamp Adapters UL 1310-2005 Class 2 Power Units UL 1012-2005 Power Units Other Than Class 2 U.S. Code of Federal Regulations Title 47 Telecommunication 1.2.2 Informative References IEEE PAR 1789 Recommended Practices of Modulating
30、Current in High Brightness LEDs for Mitigating Health Risks to Viewers 1.3 DEFINITIONS Definitions of terms that apply specifically to the subject treated in this standard are given in ANSI C82.13, ANSI/IESNA RP-16, and UL 8750. For additional definitions, see IEEE 100. Power Source, Class 2An elect
31、rical source, such as a transformer, power supply, or battery, having an open-circuit voltage that is less than 30 V rms (42.4 V peak) or 60 VDC and having limited energy available in the circuit under load conditions, including short-circuit and extremely low resistance. A Class 2 supply source can
32、 be either inherently limited or non-inherently limited. a) Inherently Limited Power SourceA transformer, power supply, or battery having no discrete protective device that is relied upon to limit the output energy available from the supply. A power supply or battery with internal current and energy
33、 limiting circuitry shown to be reliable is eligible to be identified as inherently limited. Transformers, power supplies, and batteries may be provided with protective devices as long as they are not relied upon to limit the output. b) Non-Inherently Limited Power SourceA transformer, power supply,
34、 or battery having a discrete protective device that automatically interrupts the output when the current and energy output reaches a prescribed limit. NOTEThe above is in reference to U.S. products. Products intended for use outside the U.S. should comply with the applicable standards of those coun
35、tries, particularly for input voltage range and Class 2 output voltage limits. LED Array or ModuleSee ANSI/IESNA RP-16. LED DriverSee ANSI/IESNA RP-16. LED Lamp, IntegratedSee ANSI/IESNA RP-16. LED Lamp, Non-IntegratedSee ANSI/IESNA RP-16.LED PackageSee ANSI/IESNA RP-16. Copyright 2010 by the Nation
36、al Electrical Manufacturers Association. SSL 1-2010 Page 3 Section 2 LED DRIVER RATINGS 2.1 COMMON VOLTAGE RATINGS (NOMINAL SYSTEM VOLTAGE) The preferred design center supply voltage ratings for drivers covered by this standard are: 120, 127, 208, 220, 230, 240, 277, 347, and 480 VAC at 50 or 60Hz.
37、2.2 SUPPLY (INPUT) VOLTAGE RATING The LED driver rates and markings should include: The maximum nominal system voltage The maximum input current The maximum input power NOTEAn LED driver with a dynamic input voltage range (e.g., 120 to 347) should be marked with the input current at the minimum nomi
38、nal system voltage and at the maximum nominal input voltage NOMINAL SYSTEM VOLTAGE (VAC) MAXIMUM INPUT CURRENT (Aa.c.) 120 X,X 347 Y,YAny other input current shall be in between these two extreme values. Additional input information may be provided in the driver manufacturer catalogue and data sheet
39、s. 2.3 LED LOAD (ARRAY, MODULE, OR PACKAGE) The rated load of a driver shall be specified as noted below. a) Maximum output wattage of the driver b) For drivers that supply a constant voltage, output voltage in volts ac or dc on the product label c) In any collateral publications (instructions, spec
40、ifications, etc.), the output voltage in VDC shall include a tolerance band specified as a percentage (e.g., 24 VDC 5%) d) For drivers that supply a constant current, output current shall be specified in amps on the product label e) In any collateral publications (instructions, specifications, etc.)
41、, the output current in amps shall include a tolerance band specified as a percentage (e.g., 5 amps 5%) f) For drivers designed to operate specific modules or arrays, those modules and/or arrays shall be specified on the label and/or in the install instructions NOTEThe output rating and the maximum
42、output capability are not usually the same. Copyright 2010 by the National Electrical Manufacturers Association. SSL 1-2010 Page 4 2.4 LED DRIVER OPERATING TEMPERATURES Drivers are designed to start and operate LED loads over a range of driver ambient temperatures (range to be specified by manufactu
43、rer) and should be clearly marked on the product label (e.g., 40 to 60C). Copyright 2010 by the National Electrical Manufacturers Association. SSL 1-2010 Page 5 Section 3 DRIVER PERFORMANCE 3.1 GENERAL The LED driver shall maintain the specified performance throughout its lifetime under the operatin
44、g conditions specified. NOTEIf a driver can operate over a wider range of voltages or currents than specified, this should be identified by the manufacturer. 3.1.1 Operating Conditions For reliable operation, a driver for LEDs shall be designed to meet the operating parameters of Section 2 over a 25
45、 5C range as described in Clause 2.4. 3.2 LED DRIVER INPUT A power line circuit having a maximum impedance as specified by NEMA 410 shall be used to determine compliance with this section. 3.2.1 Operating Supply Voltages When operated at any supply voltage between 90 percent and 110 percent of its r
46、ated supply voltage and at rated input frequency, a driver shall provide current and/or voltage regulation that equals or exceeds the values specified by the manufacturer. 3.2.2 Input Current Harmonic Distortion The harmonic distribution of the input current shall comply with the requirements of ANS
47、I C82.77. 3.2.3 Input Inrush Current There is a need to control inrush current transients caused by capacitor charging. Inrush currents shall be limited as specified in NEMA 410. 3.2.4 Input Current The LED driver input current, expressed in amps, shall be measured at the nominal input voltage of 12
48、0, 208, 277, 347, or 480 VAC, be connected to a branch circuit as described above in Clause 3.2, and have connected to the output the maximum load whether it be an LED array, module(s), or package(s). The LED driver input current for a dynamic range LED driver should be measured at the minimum nomin
49、al driver input voltage and at the maximum nominal driver input voltage, e.g., at 120 and 277 V for an LED driver rated for a 120 to 277 V range. 3.2.5 Input Power The LED driver wattage, expressed in watts (W), shall be measured at the nominal driver input voltage and have connected to the output the maximum load whether it is LED array(s), module(s), or package(s). The LED driver input power for a dynamic range LED driver should be measured at the minimum nominal driver input voltage and at the maximum nominal driver input voltage, e.g., at 120
