ANSI C78.81-2003 For Electric Lamps Double-capped fluorescent lamps Dimensional and Electrical Characteristics.pdf

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1、ANSI C78.812003 Revision of ANSI C78.81-2001 Copyright 2003 by American National Standard Lighting Group-NEMA American National Standard Approved: October 07, 2003 Secretariat: ANSLG- National Electrical Manufacturers Association For Electric Lamps Double-capped fluorescent lamps- Dimensional and El

2、ectrical Characteristics An American National Standard implies a consensus of those substantially concerned with its scope and provisions. It is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect p

3、reclude anyone, whether he has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. Users are cautioned to obtain the latest editions. The American National Standards Institute does not develop standards

4、 and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. CAUTION NOTICE: This American National S

5、tandard may be revised or withdrawn at any time.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

6、 or writing the American National Standards Institute. ANSI C78.81-2003 Copyright 2003 by American National Standards Lighting Group-NEMA iiAmerican National Standard Approval of an American National Standard requires verification by ANSI that the requirements for due process, consensus, and other c

7、riteria for approval have been met by the standards developer. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reache

8、d by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The existence of an American Nati

9、onal Standard does not in any respect preclude anyone, whether s/he has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. It is intended as a guide to aid the manufacturer, the consumer, and the gener

10、al 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 authority to issue an interpretation of an American National Standard in the name of the

11、American National Standards Institute. Requests for interpretations should be addressed to the Committee Secretariat referred to on the title page. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute req

12、uire 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 writing the American National Standards Institute. Printed and distributed by: Information Handling Services

13、/Global Engineering Documents 15 Inverness Way East, Englewood, CO 80112-5776 Under Contract with National Electrical Manufacturers Association Copyright 2003 by American National Standard Lighting Group In Affiliation with National Electrical Manufacturers Association All rights reserved. No part o

14、f this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of the publisher. Printed in the United States of America ANSI C78.81-2003 Copyright 2003 by American National Standards Lighting Group - NEMA iii FOREWORD (This Forewor

15、d is not part of ANS C78.81-2003) Suggestions for improvement of this standard will be welcome. They should be sent to the Secretariat, C78 Committee, National Electrical Manufacturers Association, 1300 North 17 thStreet, Suite 1847, Rosslyn, VA 22209. This standard was processed and approved for su

16、bmittal to ANSI by Accredited Standards Committee on Electric lamps, C78, and its subcommittee, C78-2. Approval of the standard does not necessarily imply that all committee members voted for its approval. This standard is a consolidation and revision of ANSI C78.1-1991, ANSI C78.2-1991, ANSI C78.3-

17、1991, and ANSI C78.4-1995 and supercedes all of the aforementioned standards and their supplements. Information concerning the approval of this standard is based on the documents listed in the table below: Amendment / Change CDV RV Second Edition 78(2)/4018 78(2)/ 4070 78(2)/4072v2 78(2)/4098 78(2)/

18、4115 78(2)/4019 78(2)/4071 78(2)/4073 78(2)/4099 78(2)/4116 At the time of publication the committee consisted of the following members: Al Rousseau, Chair C78 Al Rousseau, Technical Coordinator Randolph N. Roy, Secretariat Randolph Roy, Senior Editor ANSI C78.81-2003 Copyright 2003 by American Nati

19、onal Standards Lighting Group-NEMA ivTable of Contents Foreword iii PART I General Information and Requirements.1 1 Scope1 2 General1 3 Normative references 2 4 Definitions .3 5 Lamp abbreviations .5 6 Methods of measurement5 7 Reference ballasts .5 8 Product drawings .5 9 Application of lamps on mo

20、re than one type of circuit5 10 Lamp physical and dimensional requirements .6 11 Lamp electrical characteristics.8 12 Requirements for ballast design.9 13 Requirements for luminaire design11 PART II - Lamp Drawings and Dimensioning Principles .13 PART III Annexes.15 Guide for Establishing Fluorescen

21、t Lamp Abbreviations 15 Guidelines for the Establishment of Wattage Ratings on Lamp Data Sheets.19 Bibliography22 PART IVLamp Specification Data Sheets24 1 General Principals for Numbering of Data Sheets.24 2 Data Sheet List and Sequence 24 ANSI C78.81-2003 Copyright 2003 by American National Standa

22、rds Lighting Group - NEMA vTHIS PAGE INTENTIONALLY LEFT BLANK ANSI C78.81-2003 Copyright 2003 by American National Standards Lighting Group - NEMA 1 AMERICAN NATIONAL STANDARD For Electric Lamps - Double-Based Fluorescent Lamps Dimensional and Electrical Characteristics PART I General Information an

23、d Requirements 1 Scope This standard sets forth the physical and electrical characteristics of the principal types of fluorescent lamps intended for application on conventional line frequency circuits, and electronic high frequency circuits. Some data sheets may specify more than one circuit applica

24、tion. Specifications for both the lamp itself and the interactive features of the lamp and ballast are given. Only double-based lamps of the regular linear shape are included. Single-based lamps including compact, circular, square shaped and U-shaped are found in ANSI C78.901. Lamps for conventional

25、 systems relying on auxiliary support from external ballasts are described. These lamps are those designed for 60-Hz and/or high frequency operation. Lamp color is not specified herein. Certain lamp types covered in this standard may be similar to those in IEC 60081. However, additional types are in

26、cluded that are used only in North America and are not specified in the IEC standard. 2 General There are four parts to this standard: Part I Contains requirements and general information. Detailed descriptions, references, and explanations of the terms used in the lamp data sheets are given in this

27、 part. It also defines the principles of dimensioning lamps, both as finished lamps and for maximum outline purposes. Part II Contains dimensioning principles and lamp outline drawings. Part III Contains the annexes. Part IV Contains all of the lamp data sheets for the lamp classes covered in this s

28、tandard. ANSI C78.81-2003 Copyright 2003 by American National Standards Lighting Group-NEMA 2 3 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this American National Standard. At the time of publication, the editions in

29、dicated 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 standards indicated below. ANSI C78.180-1972 (R2003), Specifications for fluorescent

30、 lamp starters ANSI C78.375-1997, Fluorescent lamps - Guide for electrical measurements ANSI C78.376-2001, Specifications for the chromaticity of fluorescent lamps ANSI C78.901-2001, Electric lamps Fluorescent Single-based types - Dimensional and electrical characteristics ANSI/IEC C78.1195-2001, Do

31、uble-capped fluorescent lamps safety specifications ANSI C79.1-1994, Nomenclature for glass bulbs intended for use with electric lamps ANSI C81.61-1990 (R1996), Electric lamp bases ANSI C81.63-1991 (R1996), Gauges for electric lamp bases and lampholders ANSI C82.1-1997, Lamp Ballast - Line frequency

32、 fluorescent lamp ballast ANSI C82.3-1983 (R1995), Reference ballasts for fluorescent lamps ANSI C82.11-2001, High frequency fluorescent lamp ballasts IEEE 100-2000, Dictionary of electrical and electronics terms ANSI C78.812003 Copyright 2003 by American National Standards Lighting GroupNEMA 3 4 De

33、finitions The definitions in this section relate to specific terms used in this standard. For additional definitions, see the ballast standard (ANSI C82.1) and the electrical dictionary (IEEE 100) 4.1 Lamps Fluorescent lamp: A low-pressure mercury electric discharge lamp in which a fluorescing coati

34、ng (phosphor) transforms some of the ultraviolet energy, generated by the discharge, into light. Rapid-start (RS) fluorescent lamp: A fluorescent lamp designed to operate in a rapid- start circuit. Preheat-start (PS) fluorescent lamp: A fluorescent lamp designed to operate in a preheat-start circuit

35、. Instant-start (IS) fluorescent lamp: A fluorescent lamp designed to operate in an instant-start circuit. Bactericidal lamp: A low-pressure mercury vapor lamp with a bulb that transmits bactericidal ultraviolet-C radiation. Nominal overall length: A convenient number assigned to identifying a lamp

36、in relation to the size of the luminaire in which it is to be used. Nominal value: A suitable approximate quantity value used to designate or identify a component, device or equipment. Rated value: A quantity value for specified operating conditions of a component, device or equipment. The value and

37、 conditions are specified in the relevant standard or assigned by the manufacturer or responsible vendor. 4.2 Lamp Components Internal conductive coating: A coating that is made of a transparent conductive material and is applied to the inside of a fluorescent bulb, which acts as an aid to starting.

38、 Low-resistance cathode: A lamp cathode that exhibits a resistance in the range 2 to 15 ohms, when heated to nominal emission temperature. High-resistance cathode: A lamp cathode that exhibits a resistance in the range above 15 ohms, when heated to nominal emission temperature. 4.3 Ballasts and circ

39、uit characteristics Fluorescent lamp ballast: A device that, by means of resistance, inductance, capacitance, or electronic elements, singly or in combination, controls the current, voltage, and waveform to the proper values for starting and operating of fluorescent lamps.ANSI C78.81-2003 Copyright

40、2003 by American National Standards Lighting Group-NEMA 4 Rapid-start circuit: A circuit in which hot-cathode electric discharge lamps are operated under the following conditions: a) the lamps are started with the cathodes heated to a temperature sufficient for adequate electron emission and without

41、 establishing local ionization across the cathodes; b) such heating is accompanied either by means of low-voltage heater windings in the ballast itself or by separate low-voltage transformers; c) sufficient voltage is applied across the lamp and between the lamp and the starting aid (usually the fix

42、ture itself) to initiate the discharge when the cathodes reach a temperature high enough for adequate emission; and d) cathode heating voltage is maintained even after the lamp is in full operation. Two types of rapid-start circuits have evolved. a) those for lamps with nominal 3.6 volt cathodes (lo

43、w resistance); and b) those for lamps with nominal 8.0 volt cathodes (high resistance). In some cases, the lamp can be suitable for operation in either rapid-start or preheat (switch)-start circuits. Preheat (switch)-start circuit: A circuit in which hot-cathode electric discharge lamps are started

44、with the cathodes preheated through the use of a starting switch, either manual or automatic in its operation. The starting switch, when closed, connects the two cathodes, in series, in the ballast circuit so that current flows to heat the cathodes to emission temperature. When the switch is opened,

45、 a voltage surge is produced that initiates the discharge. Only the arc current flows through the cathodes after the lamp is in operation. Parallel cathode heating (preheating): A method o f supplying cathode heating voltage from one ballast cathode heating winding to two lamp cathodes that are elec

46、trically connected in parallel with that winding. Instant-start circuit: A circuit in which an electric discharge lamp is started by the application of a voltage sufficiently high to eject electrons from the electrodes by field emission, initiate electron flow through the lamp, ionize the gases, and

47、 start a discharge through the lamp without previous heating of the electrodes. Crest factor: The ratio of the peak value of lamp current (or voltage) to the root-mean square (rms) value of lamp current (or voltage). High frequency current crest factor: The high frequency current crest factor is equ

48、al to the peak current of the modulated or unmodulated envelope divided by the effective rms current. ANSI C78.812003 Copyright 2003 by American National Standards Lighting GroupNEMA 5 4.4 Miscellaneous Starting aid: A conductive ground plane reference, located parallel to a lamp. The voltage differ

49、ence between a lamps cathode and the plane aids in the initiation of the arc. 5 Lamp abbreviations Lamp abbreviations for fluorescent lamps are not officially assigned through any administered designation system. Those used on the data sheets in Part IV are assigned in accordance with the Guideline of Annex A. There is no requirement for the use of abbreviations for lamp marking. 6 Methods of measurement Electrical measurements necessary to determine the performance of lamps that are defined in this standard shall be made in accordance with