NEMA C82 5-2010 Reference Ballasts - High-Intensity-Discharge and Low-Pressure Sodium Lamps.pdf

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1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI C82.5-2010Reference Ballasts High-Intensity-Discharge and Low-Pressure Sodium LampsANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 1 of 26 ANSI C82.5-2010 American National Standard for Reference Ball

2、asts High-Intensity-Discharge and Low-Pressure Sodium Lamps Secretariat: National Electrical Manufacturers Association Approved: November 2, 2010 American National Standards Institute, Inc. ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 2 of 26 American National Standard App

3、roval of an American National Standard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. An American National Standard implies a consensus of those substantially concerned with its scope and provi

4、sions. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all

5、views and objections be considered, and that a concerted effort be made toward their resolution. The existence of an American National Standard does not in any respect preclude anyone from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standar

6、d. It is intended as a guide to aid the manufacturer, the consumer, and the general public. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authorit

7、y to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standar

8、d may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or wr

9、iting the American National Standards Institute. Copyright 2010 by National Electrical Manufacturers Association All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher. Printed

10、in the United States of America ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 3 of 26 Contents Foreword.5 1.0 Scope7 2.0 Normative references7 3.0 Definitions .8 4.0 Types of reference ballasts .8 5.0 Ballast marking .8 6.0 Design characteristics .9 7.0 Operating characteri

11、stics 10 8.0 Methods of measurement and calibration .11 Figure 1 Circuit for impedance measurement .13 Figure 2 Circuit for power-factor measurement.13 Annex A Inclusion of Instrument current coil impedances in the impedance of the reference ballast .16 Figure A1 Circuit for impedance measurement .1

12、7 Figure A2 Circuit for power-factor measurementpreferred method17 Figure A3 Circuit for power-factor measurement - Alternate method (Normal-power-factor wattmeter and ammeter included in reference ballast impedance) 18 Figure A4 Circuit for power-factor measurement - Alternate method (Normal-power-

13、factor wattmeter included in reference ballast impedance) 18 Figure A5 Circuit for power-factor measurement - Alternate method (Ammeter included in reference ballast impedance) .19 Annex B Measurement and adjustment of the impedance and power-factor characteristics of a reference ballast guide for t

14、he use of the preferred method 20 ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 4 of 26 Annex C Measurement and adjustment of the impedance and power-factor characteristics of a reference ballast description of and guide for an alternate method 22 Figure C1 Circuit for impe

15、dance and power-factor measurement 23 Annex D (informative) Bibliography.26 ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 5 of 26 Foreword (This Foreword is not part of American National Standard C82.5-2010.) In order to obtain satisfactory performance of high-intensity-dis

16、charge lamps and their associated ballasts, certain features of their designs must be properly coordinated. Specifications for the operation of either the lamps or the ballasts must naturally be written in terms of measurements made against some common reference. Because of the inherent instability

17、of gaseous discharge lamps, experience has shown them to be unsuited as a reference. A ballast, however, can be specially designed to provide a reasonably permanent and reproducible reference for measurements. Such ballasts are designated as “reference ballasts.“ This standard describes those ballas

18、t characteristics needed to ensure permanence and reproducibility. American National Standards are constantly being reviewed and brought up to date. This standard is a revision of American National Standard Specifications for High-intensity Discharge Lamp Reference Ballasts, ANSI C82.5-1990. There a

19、re four annexes in this standard. They are informative and are not considered part of this standard. Suggestions for improvement of this standard will be welcome. They should be sent to the American National Standard Lighting Group, 1300 N. 17th Street, Suite 1752, Rosslyn, VA 22209. This standard w

20、as processed and approved for submittal to ANSI by American National Standards Committee on Lamp Ballasts, C82. Committee approval of the standard does not necessarily imply that all committee members voted for its approval. This standard updates the 1990 version. The revisions for ANSI C82.5-2010 a

21、re strictly editorial. ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 6 of 26 Information concerning the approval of this standard is based on the documents listed in the table below: Amendment/Change CDV RV Revision C82_m723 C82_m724 Robert Erhardt, Chair, C82 Ernesto Mendo

22、za, Technical Coordinator Randolph N. Roy, ANSLG Secretariat Matt Clark, Senior Editor ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 7 of 26 1. Scope This standard describes the essential features and operating characteristics of reference ballasts for high-intensity discha

23、rge and low-pressure sodium lamps to operate on 60-Hz sinusoidal ballast systems. The items specified are those that have been found necessary to ensure accurate and reproducible results when either lamps or ballasts are being tested. The specific values of rated input voltage and impedance needed f

24、or each size of lamp are listed in the appropriate American National Standards for high-intensity-discharge and low pressure sodium lamps, ANSI C78.1300 series (ANSI C78.40-1992, Specifications for Mercury Lamps, ANSI C78.41-2006, Guidelines for Low- Pressure Sodium Lamps, ANSI C78.42-2007, High-Pre

25、ssure Sodium Lamps, ANSI C78.43-2007, Single-Ended Metal Halide Lamps, and ANSI C78.44-2006, Double-Ended Metal Halide Lamps). 1.1 Important patent disclaimer It is possible that some of the elements of this document may be the subject of patent rights. When this document was approved for publicatio

26、n, ANSLG did not know of any patent applications, patents pending, or existing patents. ANSLG shall not be held responsible for identifying any or all such patent rights. 2. Normative references The following standards contain provisions which, through reference in this text, constitute provisions o

27、f this American National Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this American National Standard are encouraged to investigate the possibility of applying the most recent editions of the standa

28、rds indicated below. ANSI C78.25-1991, Electric Lamps - Methods of Measuring Lamp-Base Temperature Rise ANSI C78.40-1992, Specifications for Mercury Lamps ANSI C78.41-2006, Guidelines for Low-Pressure Sodium Lamps ANSI C78.42-2007, High-Pressure Sodium Lamps ANSI C78.43-2007, Single-Ended Metal Hali

29、de Lamps, ANSI C78.44-2008, Double-Ended Metal Halide Lamps ANSI/UL496-2008, Safety Standard for Edison Base Lampholders ANSI/ISA S82.02.01-1999, Electric and Electronic Test, Measuring, Controlling, and Related Equipment: General Requirements (revision and redesignation of ANSI/ISA S82.01-1994) ANS

30、I C82.5-2010 2010 National Electrical Manufacturers Association Page 8 of 26 ANSI/ISA S82.02-1996, Safety standard for electrical and electronic test, measuring, controlling, and related equipment, part 1 - Electrical and electrical test and measuring equipment ANSI/ISA S82.02.04-1996 (IEC 1010-2-03

31、2), Safety requirements for Electrical Equipment for Measurement, Control, and Laboratory Use (Identical to IEC1010-2-032: Particular Requirements for Hand Held Current Clamps for Electrical Measurement and Test) ISA MC96.1-1982, Temperature measurement thermocouples 3.0 Definitions Definitions of t

32、erms that apply specifically to the subject treated in this standard are given in ANSI C82.9. For definitions of other less directly related terms, see the appropriate sections of ANSI/IEEE 100. 4.0 Types of reference ballasts There are two types of reference ballasts. The fixed-impedance type is ad

33、justed and calibrated at the time of manufacture and is permanently set at a particular value of impedance. It can be used only for the one type of lamp for which it was calibrated. The variable-impedance type of reference ballast consists of an adjustable reactor, usually of the moving core type, a

34、nd a separate variable resistor connected in series. 5.0 Ballast marking 5.1 Marking A reference ballast shall be provided with a durable nameplate securely attached to a permanent portion of the ballast structure. The information shown in 5.1.1 or 5.1.2 shall be legibly etched or stamped on it. 5.1

35、.1 Fixed-impedance type Information on the nameplate shall include the following: - Lamp type, watts, and current - Supply voltage and frequency - Impedance - Manufacturers catalog or model number - Manufacturers serial number - Manufacturers name 5.1.2 Variable-impedance type Information on the nam

36、eplate shall include the following: - Impedance range at the rated frequency(s) - Maximum voltage per coil and maximum voltage across reactor ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 9 of 26 - Maximum current per coil - Manufacturers catalog or model number - Manufactu

37、rers serial number - Manufacturers name - Frequency (s) - Connection diagram 5.2 Magnetic shielding If a reference ballast is magnetically-shielded, this information shall be indicated on the nameplate described in 5.1. 6.0 Design characteristics 6.1 General design A reference ballast is an inductiv

38、e reactor, with or without an additional series resistor, designed to give the operating characteristics listed in clause 7. 6.2 Permanence of impedance 6.2.1 Fixed-impedance-type ballasts Since the fixed-impedance type of reference ballast is intended to serve as a permanent baseline of reference,

39、it is vitally important that the ballast be so constructed as to provide permanence of impedance under normal conditions of use and abuse. A recheck of the impedance of the ballast shall give values repeatable to within 0.1% of those previously determined. 6.2.2 Variable-impedance type ballasts The

40、variable-impedance type of reference ballast, when adjusted to any given value of impedance shall be capable of holding that adjustment through normal periods of use. For this purpose, suitable means shall be provided for mechanically locking the movable core (or other movable parts) in any desired

41、position. 6.3 Enclosure A reference ballast shall be enclosed in a case for mechanical protection and protection against electrical shock. The protection against electrical shock shall be in accordance with ANSI/ISA S82.02.01-1999, and ANSI/ISA S82.02.04-1996 (IEC 1010-2-032). In the case of the var

42、iable-impedance type of ballast, the series resistor need not be in the same enclosure with the reactor. ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 10 of 26 6.4 Magnetic shielding A reference ballast, to be considered magnetically-shielded, shall be so designed and const

43、ructed that its impedance at reference current shall not be changed by more than 0.2% when a 1/2-inch-thick plate of magnetic steel is placed within 1 inch of any face of the ballast enclosure. The steel plate shall have dimensions at least 2 inches greater than the maximum dimension of the ballast

44、enclosure and shall be placed in geometric symmetry to each surface as tested. In the event that a reference ballast is not magnetically-shielded, precautions shall be taken to keep magnetic objects far enough from the leakage field that the impedance of the ballast will not be altered by more than

45、0.2% mentioned above. Table 1 - Ballast power factors Lamp type Wattage Power factor 0.005 High-pressure sodium Metal-halide Mercury Low-pressure sodium Low-pressure sodium All All All Less than 18 watts 18 watts and above 0.075 0.075 0.075 0.075 0.060 NOTE - Wattage loss includes losses due to lead

46、s. 6.5 Inclusion of Instrument current coil Impedance When a variable-impedance type of reference ballast is being used, a choice may be made as to whether the impedance of the instrument current coils (the ammeter and wattmeter) will or will not be included as part of the impedance of the reference

47、 ballast. Either choice is satisfactory, but the other aspects of the calibrating procedure and also subsequent use of the ballast shall be compatible with the particular procedure being followed. For the sake of simplicity, the procedures described in this standard are those applicable when the imp

48、edance of the current coils is not included in the impedance of the reference ballast. Annex A, however, covers the changes in procedures and circuitry that would be required if the current coils were included. 7.0 Operating characteristics 7.1 General The specifications in this section apply to mea

49、surements made at the rated frequency of the reference ballast and with the ballast parts and windings conditioned at an ambient temperature of 25C 5C. ANSI C82.5-2010 2010 National Electrical Manufacturers Association Page 11 of 26 7.2 Rated input voltage The rated input voltage of a reference ballast shall be in accordance with the value specified in the applicable standards from ANSI C78.40, ANSI C78.41, ANSI C78.42, ANSI C78.43, or ANSI C78.44. 7.3 Impedance The impedance of a reference ball