1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI C78.44-2016Electric Lamps Double-Ended Metal Halide LampsANSI C78.44-2016 Page 1 2016 National Electrical Manufacturers Association ANSI C78.44-2016 American National Standard for Electric Lamps Double-Ended Metal Halide Lam
2、ps Secretariat: National Electrical Manufacturers Association Approved: July 1, 2016 American National Standards Institute, Inc. ANSI C78.44-2016 Page 2 2016 National Electrical Manufacturers Association NOTICE AND DISCLAIMER The information in this publication was considered technically sound by th
3、e 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 among every person participating in the development of this document. ANSI standards and guideline publications, of which
4、 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 of persons who have an interest in the topic covered by this publication. While NEMA administers the process to promote
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9、e 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 determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication ma
10、y 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, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, de
11、signs, 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 the responsibility of the certifier or maker of the statement. ANSI C78.44-2016 Pa
12、ge i 2016 National Electrical Manufacturers Association AMERICAN NATIONAL STANDARD Approval of an American National Standard requires verification by The American National Standards Institute, Inc. (ANSI) that the requirements for due process, consensus, and other criteria for approval have been met
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15、pect 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 general public. The American National
16、Standards Institute, Inc., 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 American National Standard
17、s Institute, Inc. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on this title page. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute, Inc., require
18、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, Inc. Published by National Electrical Manufacturers Associatio
19、n 1300 North 17thStreet, Suite 900 Rosslyn, Virginia 22209 2016 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 Int
20、ernational and Pan American copyright conventions. 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 in the United States of AmericaANSI C78.44-2016 Page ii 2016 National Electrical Ma
21、nufacturers Association Foreword (This foreword is not part of ANSI C78.44) Suggestions for improvement of this standard should be submitted to: Secretariat C78 National Electrical Manufacturers Association 1300 North 17thStreet, Suite 900 Rosslyn, Virginia 22209 This standard was processed and appr
22、oved for adoption by Accredited Standards Committee on Electric Lamps, C78. Committee approval of the standard does not necessarily imply that all committee members voted for that approval. ANSI C78.44-2016 Page iii 2016 National Electrical Manufacturers Association CONTENTS Organization of this sta
23、ndard . iv Part I General Requirements and Information 1 Scope 2 1.1 Important Patent Disclaimer 2 2 Normative References . 2 3 Definitions . 3 4 Methods of Measurement 3 5 Lamp Specifications . 3 5.1 Lamp Designations and Description 3 5.2 Lamp Physical Characteristics 3 5.3 Operating Characteristi
24、cs at 100 Hours 4 5.4 Lamp Reignition Voltage Spike (Vrs) 4 5.5 Lamp Reignition Voltage (Vr) 4 5.6 Lamp Starting Voltage and Warm-up Requirements. 4 5.7 Reference Ballast Requirements . 5 6 Information for Ballast Design 5 6.1 Requirements for Lag Ballast 5 6.2 Requirements for Peak-Lead Ballasts .
25、5 6.3 Ignitor Requirements 6 6.4 Starting Current Requirements . 6 6.5 Current Crest Factor 6 6.6 Maximum Peak Voltage (across lamp terminals) . 6 6.7 Lamp Operating Wattage 6 7 Information for Luminaire Design 7 7.1 Lamp Voltage Rise Limits . 7 7.2 UV Attenuation . 7 7.3 Lamp Temperatures 7 7.4 Lam
26、p Operating Position 7 7.5 Instant Hot Restrike 7 Part II Lamp Drawings Figure 1 Double-Ended with R7s Base 10 Figure 2 Double-Ended with Fc2 Base . 11 Figure 3 Double-Ended with RX7s Base 11 Figure 4 Double-Ended with Cable Base . 12 Part III Double-Ended Lamp Data Sheets 75 Watt M85 Double-Ended M
27、etal Halide Lamp 14 100 Watt M91 Double-Ended Metal Halide Lamp 18 150 Watt M81 Double-Ended Metal Halide Lamp 22 250 Watt M80 Double-Ended Metal Halide Lamp 26 1500 Watt M133 Double-Ended Metal Halide Lamp . 30 2000 Watt M134 Double-Ended Metal Halide Lamp . 34 ANNEX A Luminaire Simulator 38 ANSI C
28、78.44-2016 Page iv 2016 National Electrical Manufacturers Association Organization of This Standard This standard comprises three parts and an annex: Part I covers general requirements and information. It provides normative references and offers brief explanations of the meaning or the application o
29、f some of the numerical data given on the individual lamp data sheets in Part III of this standard. It also provides requirements that are common to all metal halide lamp types. Part II contains the lamp drawings of each lamp size. Part III contains the individual lamp double-end data sheets that pr
30、ovide the specific lamp, ballast, and luminaire requirements of the standardized double-ended metal halide lamp type. Annex A contains the design and dimensions of luminaire simulators needed to measure double-ended metal halide lamps. ANSI C78.44-2016 Page 1 2016 National Electrical Manufacturers A
31、ssociation I. General Requirements and Information ANSI C78.44-2016 Page 2 2016 National Electrical Manufacturers Association 1 Scope This standard sets forth the physical and electrical requirements for double-ended metal halide lamps operated on 60 Hz. ballasts to ensure interchangeability and saf
32、ety. The data given also provides the basis for the electrical requirements for ballasts and ignitors, as well as the lamp-related requirements for luminaires. This standard includes lamps whose arc tubes are made of quartz or ceramic materials. Luminous flux and lamp color is not part of this stand
33、ard. 1.1 Important Patent Disclaimer At the time of publication, it is possible that some of the elements of this document may be the subject of patent rights. When this standard was approved for publication, the National Electrical Manufacturers Association (NEMA) did not know of any patent applica
34、tions, patents pending, or existing patents. NEMA 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 of this American National Standard. At the tim
35、e 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 standards indicated below. ANSI C78.79-2014 America
36、n National Standard for Electric LampsNomenclature for Envelope Shapes Intended for Use with Electric Lamps ANSI C78.260-2002 American National Standard for Tubular Tungsten Halogen (TH) LampsPhysical Characteristics ANSI C78.380-2007 (R2010) American National Standard for Electric LampsHigh-Intensi
37、ty Discharge (HID)Method of Designation ANSI C78.389-2004 (R2009) American National Standard for Electric LampsHigh-Intensity Discharge (HID)Methods of Measuring Characteristics ANSI C81.61-2009 (R2014) Electric lamp bases ANSI C82.4-2002 (R2010) American National Standard for Lamp BallastsBallasts
38、for High-Intensity Discharge and Low-Pressure Sodium (LPS) Lamps (Multiple-Supply Type) ANSI C82.5-2010 American National Standard for Reference BallastsHigh-Intensity Discharge and Low-Pressure Sodium Lamps ANSI C82.6-2015 American National Standard for Lamp BallastsBallasts for High-Intensity Disc
39、harge (HID) LampsMethods of Measurement ANSI C82.9-2010 American National Standard for Lamp BallastsHigh-Intensity Discharge (HID) and Low-Pressure Sodium (LPS) LampsDefinitions UL 1598-2008 Luminaires ANSI C78.62035-2016 American National Standard for Electric LampsDischarge Lamps (Excluding Fluore
40、scent Lamps)Safety Specifications ANSI C78.44-2016 Page 3 2016 National Electrical Manufacturers Association 3 Definitions Definitions of double-ended metal halide lamp terms used in this standard can be found in ANSI C82.9. 4 Methods of Measurement Measurement of the electrical characteristics and
41、the bulb and base temperatures of metal halide lamps shall be made in accordance with ANSI C78.389. 5 Lamp Specifications Lamps must meet the requirements contained within ANSI C78.62035 as well as the specifications contained in this standard. 5.1 Lamp Designations and Descriptions 5.1.1 Lamp Desig
42、nations Metal halide designations are assigned in accordance with ANSI C78.380. Note that the number (two or three digits) following the first upper case letter in the designation, indicates a unique set of electrical characteristics. Following the lamp number is a slash followed by a luminaire char
43、acteristic letter. Operating position limitations are indicated on the lamp marking. 5.1.2 Bulb Designation Bulb designations are defined in ANSI C78.79. Due to the long-term use of the conventional method of designation, its use will continue in this standard with the metric designation in parenthe
44、sis. Note that the bulb sizes listed on the lamp data sheets are intended to correspond with the common sizes listed in ANSI C78.79. The “nominal bulb diameter“ shown on the lamp data sheets indicates the nominal dimension in SI units, with the metric equivalent in parentheses. The bulb designation
45、may not correspond directly with the actual nominal dimension. 5.1.3 Lamp Drawings Lamp drawings show the locations of the dimensions that appear on the lamp data sheets. 5.1.4 Base Specifications Requirements for electrical lamp bases are specified in ANSI C81.61. 5.2 Lamp Physical Characteristics
46、5.2.1 Physical and Dimensional Requirements Lamps shall satisfy the requirements on the relevant lamp data sheet. The critical lamp dimensions are given in SI units, with equivalent inches in parentheses. ANSI C78.44-2016 Page 4 2016 National Electrical Manufacturers Association 5.2.2 Luminaire and
47、Temperature Requirements The luminaire characteristic (open, enclosed), maximum permissible bulb temperature, and maximum permissible base temperature for each lamp type is listed in the individual lamp data sheets. Concerning the maximum temperature limits for the lamp bulb and base, note that luminaire design must be such that these maximum temperatures are not exceeded. 5.3 Operating Requirements at 100 Hours The lamp o
