NEMA C78 380-2016 Electric Lamps - High-Intensity Discharge Lamps - Method of Designation.pdf

1、ANSI C78.380-2016 American National Standard for Electric Lamps High-Intensity Discharge Lamps Method of Designation Secretariat: National Electrical Manufacturers Association Approved: July 7, 2016 American National Standards Institute, Inc. 2016 National Electrical Manufacturers Association NOTICE

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18、ational Standards Institute, Inc. Published by National Electrical Manufacturers Association 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 Conv

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20、Printed in the United States of AmericaANSI C78.380-2016 Page ii 2016 National Electrical Manufacturers Association Foreword (This foreword is not part of American National Standard C78.380-2016)Suggestions for improvement of this standard should be submitted to the Secretariat C78, NEMA, 1300 North

21、 17thStreet, Suite 900, Rosslyn, VA 22209. This standard was processed and approved 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 C78.380-2016 Page iii 2016 National Ele

22、ctrical Manufacturers Association CONTENTS Foreword . ii 1 Scope 1 2 Purpose . 1 3 Normative References 1 4 Definitions 2 5 Description of a Designation . 2 5.1 General 2 5.2 Lamp type classification letter . 3 5.4 Luminaire characteristic letter . 4 5.5 Physical characteristics . 4 5.7 Other inform

23、ation . 5 5.8 Metal halide lamps, illustration of typical designations 5 5.9 Lamp wattage 5 6 Criteria for Assignment of Designations 5 7 Administration of the lamp designation program (LCD) 5 7.1 Administrator . 5 7.2 Participants in high-intensity discharge LCD . 5 7.3 Maintenance 5 7.4 Procedure

24、for assigning and recording lamp designations . 6 7.5 Procedure for a change in the characteristics of an existing lamp designation 6 7.6 Resolution procedure 6 7.7 High-intensity discharge lamp designation request form 7 8 The Practice of Lamp Code Designations becoming American National Standards

25、7 Annex A Luminaire Characteristic Letters 8 Annex B Guidelines for Assigning Lamp Designation Codes . 9 ANSI C78.380-2016 Page iv 2016 National Electrical Manufacturers Association ANSI C78.380-2016 Page 1 2016 National Electrical Manufacturers Association 1 Scope This standard describes a system f

26、or the designation of high-intensity discharge lamps, including compact, enclosed-arc discharge light sources such as mercury, metal halide, high-pressure sodium, and similar types of lamps. For convenience, low-pressure sodium lamps, although technically not high-intensity discharge lamps, are incl

27、uded with the group. 2 Purpose The purpose of the designation system covered by this standard is to provide an identification code for use in ANSI standards. Some lamp marking requirements are also identified. Guidance is given as to which characteristics are important (key) to assure interchangeabi

28、lity. The lamp characteristic data given by a manufacturer on a high-intensity discharge lamp code designation (LCD) request form becomes the basis for the assignment of a designation. They have not been approved by the American National Standards Institute (ANSI) and do not constitute an American N

29、ational Standard. Similarly, any consolidated listing of assigned designations with associated characteristics does not constitute an American National Standard. 3 Normative References The following standards contain provisions, which through reference in this text; constitute provisions of this Ame

30、rican 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 standards indica

31、ted below. ANSI C78.40 American National Standard for Electric LampsSpecifications for Mercury Lamps ANSI C78.41 American National Standard for Electric LampsHigh-Intensity Discharge LampsLow Pressure Sodium Lamps ANSI C78.42 American National Standard for Electric LampsHigh Pressure Sodium Lamps AN

32、SI C78.43 American National Standard for Electric LampsSingle-Ended Metal Halide Lamps ANSI C78.44 American National Standard for Electric LampsDouble-Ended Metal Halide Lamps ANSI C78.45 American National Standard for Electric LampsSelf-Ballasted Mercury Lamps ANSI C78.379 American National Standar

33、d for Electric LampsIncandescent and High-Intensity Discharge Reflector LampsClassification of Beam Patterns ANSI C78.389 American National Standard for Electric Lamps: Metal Halide Lamps Method of Measuring Characteristics ANSI/IEC C78.62035 American National Standard for Electric LampsDischarge La

34、mps (excluding fluorescent lamps)Safety Specifications ANSI C79.1 American National Standard Nomenclature for Glass Bulbs Intended for Use with Electric Lamps ANSI C81.61 American National Standard for Electrical Lamp Bases ANSI C82.9 American National Standard Definitions for High-Intensity Dischar

35、ge and Low Pressure Sodium Lamps, Ballasts and Transformers ANSI/IESNA RP-27.1 Recommended Practice for Photobiological Safety for Lamps and Lamp Systems ANSI/UL1598 Standard for Luminaires ANSI C78.380-2016 Page 2 2016 National Electrical Manufacturers Association 4 Definitions In addition to the g

36、eneral definitions given in this section, the administrator will provide a glossary of terms used in conjunction with a request form. See section 7. alternative design: A lamp with key characteristics that are the same but utilize different features that do not affect interchangeability. designation

37、 program: The procedures and requirements of this standard formulated to provide designations for lamps. electrical interchangeability: The ability to properly install a replacement lamp in a particular installation where electrical characteristics of lamps and luminaires are compatible with regard

38、to characteristics such as voltage, current, power, and open circuit voltage. key characteristic: A characteristic identified as having a critical effect on the interchangeability of lamps. lamp manufacturer: A manufacturer who produces finished lamps and offers them for sale physical interchangeabi

39、lity: The ability to properly install a replacement lamp in a particular installation, based on physical characteristics such as base type, bulb size, and lamp length. reflector lamp: A discharge lamp in which part of the bulb, of suitable shape, is coated with a reflecting material so as to control

40、 the light. Note: HID reflector lamps typically employ R or PAR-shaped bulbs. sponsor: The originator of a lamp designation request form. 5 Description of a Designation 5.1 General A lamp designation code shall consist of a combination of letters and numbers in the following sequence: a) Lamp Type C

41、lassification Letterb) Electrical Characteristic Numberc) Luminaire Characteristic LetterQuartz and ceramic metal halide lamps shall be marked with all three items. Other HID lamp types shall be marked with the first two items. Other lamp types may also be marked with the luminaire characteristic le

42、tter. Consult the lamp manufacturer before use on ballasts with any code that is not listed on the lamp. ANSI C78.380-2016 Page 3 2016 National Electrical Manufacturers Association The code layout is as follows. Other than the use of virgules, as defined in this standard, there shall be no spaces or

43、 other undefined symbols or separators used in a designation1.5.2 Lamp type classification letter The first letter of a designation represents the high-intensity discharge lamp classification. Classification letters are capital letters from the following list of authorized letters. B Self-ballasted

44、mercury lamps C Ceramic metal halide lamps H Mercury lamps L Low-pressure sodium lamps M Quartz metal halide lamps S High-pressure sodium lamps Note: When designations of other types of high-intensity discharge lamps are requested, other letters shall be chosen to represent the new classifications.

45、A single letter, other than those already assigned, shall be assigned by the consulting body to represent each additional class of high-intensity discharge lamp. 1 Lamps that do not conform to an existing electrical characteristic number shall be marked as described in paragraph 5.1 with an undersco

46、re in place of the electrical number, e.g. M_/E or M _ /S or M_/O. Lamp Marking CodeLamp Type ClassificationLetterElectrical CharacteristicNumberLuminaireCharacteristicLetterANSI C78.380-2016 Page 4 2016 National Electrical Manufacturers Association 5.3 Electrical characteristic number A number shal

47、l follow directly after the lamp type classification, and it represents the set of all key electrical characteristics of the lamp in question, so as to ensure electrical interchangeability. One set of numbers is the source for all assignments of characteristic numbers, and characteristic numbers can

48、 be used for more than one lamp classification type as long as the additional type conforms to the key electrical characteristics for an additional type in Annex B. For example, a 150 W ceramic metal halide lamp that is intended to operate on a ballast intended for M102 quartz metal halide lamps wou

49、ld have the designation C102. Key electrical characteristics are: a) Lamp wattage, ratedb) Lamp voltage, ratedc) Lamp operating currentd) Lamp starting currente) Minimum open circuit voltage, rmsf) Minimum open circuit voltage, peakg) Pulse height, where applicableh) Minimum pulse width, where applicablei) Pulse repetition rate (per half cycle), where applicablej) Pulse position, where applicablek) Maximum operating and starting current crest factorl) Minimum sustaining voltage, where applicablem) Maximum current off-time, where applicablen) Require