1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI C78.50-2014Assigned LED Lamp CodesAmerican National Standard Approved : 06/19/2014 Secretariat: National Electrical Manufacturers Association for Electric Lamps Assigned LED Lamp Codes ANSI C78.50-2014 An American National S
2、tandard 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 preclude anyone, whether he has approved the sta
3、ndard 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 and will in no circumstances give an interpret
4、ation 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. GUIDE and DISCLAIMER: Information contained herein is informative and shall not be deem
5、ed an industry standard. The reader should explore other methods that might be suitable to their needs. This standard contains information and reference to industry standards; through reference in the text, by consent constitutes provisions of this standard. All standards are subject to revision, an
6、d parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated herein. This standard may be revised or withdrawn at any time. C78.50-2014 Page ii 2014 National Electrical Manufacturers Association American
7、National Standard Approval 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 wit
8、h its scope and provisions. 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. Consens
9、us requires that all 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, whether s/he has approved the standard or not, from manufacturing, marketing, purchasing, or u
10、sing 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 Standards Institute does not develop standards and will in no circumstances give an interpretation of any American N
11、ational 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. Requests for interpretations should be addressed to the Committee Secretary referred to in the foreword. CAUTI
12、ON NOTICE: This American National Standard 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 info
13、rmation on all standards by calling or writing the American National Standards Institute. 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 America. C78.50-2014
14、 Page iii 2014 National Electrical Manufacturers Association FOREWORD (This foreword is not part of ANSI C78.50.-2014.) This is a new standard and not a revision of a previous standard. Suggestions for improvement of this standard should be submitted to: Senior Technical Director, Operations Nationa
15、l Electrical Manufacturers Association 1300 North 17th Street, Suite 900 Rosslyn VA 22209 This standard was processed and approved by Accredited Standards Committee on Electric Lamps, C78 and its Working Group, C78 WG-09 for Solid State Lighting Sources. Committee approval of the standard does not n
16、ecessarily imply that all committee members voted for that approval. C78.50-2014 Page iv 2014 National Electrical Manufacturers Association TABLE OF CONTENTS Foreword iii Part I General Information 1 1 Scope 1 2 Normative References 1 3 Definitions and abbreviations. 2 4 Lamp designations 2 5 Lamp s
17、hape designations . 2 6 Beam photometry and classification 2 7 Lamp drawings. 2 8 Electrical characteristics 3 9 Requirements 3 10 Information on luminaire design. 3 Part II Lamp Classes 5 Table 1 Lamp Data Sheet. 6 Table 2 Manufacturer Data Sheet Content Requirements (if necessary) 6 Table 3 Common
18、 SSL Replacement Lamp Voltage Ratings. 7 Part III Lamp Space Drawings 8 Part IV Product Drawings 9 Figure 78.50-1. 10 Figure 78.50-2. 11 Annexes Annex A Informative References 12 C78.50-2014 Page 1 2014 National Electrical Manufacturers Association American National Standard PART I General Informati
19、on 1 Scope This standard provides physical and electrical characteristics of the group of integrally ballasted Solid State Lighting (SSL) lamps that have standardized characteristics. Lamps with clear, frosted, opaque, and lens end windows and with various reflector and/or emitting coatings are cove
20、red. Lamps covered in this standard contain LED based light sources. 2 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 indicated were valid. All st
21、andards 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 C78.30-1997 Procedure for Use in Preparation of Incandescent Lamp Space Drawin
22、gs ANSI C78.379-2006 Method for the Classification of the Beam Patterns of Reflector Lamps ANSI C78.60432-2007, Parts 1 American National Standard for Electric LampsIncandescent LampsSafety Specifications ANSI C78.60432-2007, Parts 2 American National Standard for Electric LampsIncandescent LampsSaf
23、ety Specifications ANSI C81.61-2009 Electrical Lamp Bases ANSI C81.63-2007 Gauges for Electrical Bases and Lampholders Revision of ANSI C79.1: ANSI C78.79-21XX Nomenclature for Envelope Shapes Intended for Use with Electric Lamps ANSI/IEC C78.60360-2002 Standard Method of Measurement of Lamp Cap Tem
24、perature Rise ANSI/IESNA RP-27.1-05 Photobiological Safety for Lamps and Lamp Systems-General Requirements ANSI/IESNA RP-27.2-00 Photobiological Safety for Lamps and Lamp Systems-Measurement Systems ANSI/IESNA RP-27.3-96 Photobiological Safety for Lamps and Lamp Systems-Risk Group Classification IES
25、 LM-79-08 Electrical and Photometric Measurements of Solid-State Lighting Products UL 1993 Standards for Safety Self-Ballasted Lamps and Lamp Adapters UL 8750 Standards for Safety Light Emitting Diode (LED) Equipment for Use in Lighting Products C78.50-2014 Page 2 2014 National Electrical Manufactur
26、ers Association 3 Definitions and Abbreviations In addition to lamp shape and base codes that are defined in the referenced standards, some terms common to the industry are utilized in this standard and used in Table 1. 3.1 MOL (Maximum Overall Length): Distance along the lamp axis from furthest bas
27、e extension (eyelet solder for screw bases) to the top or face of the lamp. Dimensions are included in this document. 3.2 LCL (Light Center Length): Distance from the reference plane (eyelet solder for screw bases) to the center of the light-emitting element of the lamp. 3.3 Class: A grouping of lik
28、e lamps having the same lamp shape, base, MOL, and lamp finish, including two or more voltage ratings within a voltage range. Each line item in Table 1 is a class. 3.4 Voltage range: A series of rated voltages related to commonly available supply lines. Table 3 lists several common voltage ranges th
29、at apply to classes of lamps in this standard. 3.5 Rated lamp power (wattage): Lamp power marked on the lamp. 3.6 Rated voltage: The voltage marked on the lamp. If lamps are marked with a range voltage, it shall be interpreted that they are appropriate for use on any line voltage within that range.
30、3.7 Base temperature rise: The surface temperature rise above ambient temperature of a standard test lampholder fitted to the lamp, when measured according to the standard method. Maximum base temperature rise limits apply to base-up burn position at which maximum temperature rise occurs unless lamp
31、s are restricted to other burn positions by their manufacturers. See ANSI/IEC C78.60360 for method of measurement. 3.8 Service: The field of most common application for a given lighting source. Service indicated in this standard is not necessarily the only application. “Spotlight“ and “floodlight” a
32、re examples of generic terms only used to describe either spot or flood light service. Other examples include dry, damp, wet, and rough service applications. 4 Lamp Designations This standard does not place any control over lamp designations. This standard recognizes that SSL lamp standards are not
33、fully developed. Additional codes may be applied by lamp manufacturers. See lamp manufacturers catalogs for more detailed information. 5 Lamp Shape Designations Lamp shape designations used in this standard are defined within ANSI C78.79 and used in Table 1. The traditional eighth-inch system of des
34、ignation has been used in this standard (for example, PAR16 = 2 inches in diameter). The metric equivalents are also shown. 6 Beam Photometry and Classification for Directional Sources See ANSI C78.379 for information on classification of beam patterns. For directional light sources, the guidance pr
35、ovided in C78.379 should be utilized. 7 Lamp Drawings 7.1 Lamp Space Drawings in Part III Lamp space drawings in Part III of this standard show the maximum limits of the space that may be occupied by any part of the lamp. A typical lamp shape is shown as a dashed line within that maximum space. The
36、space shown shall accommodate the longest and shortest lamps with maximum bowl and C78.50-2014 Page 3 2014 National Electrical Manufacturers Association neck diameters and maximum lamp shape eccentricity. These drawings were prepared in accordance with the lamp space drawing procedures in ANSI C78.3
37、0. The following general conditions apply to the construction of these space drawings: a. Straight lines are used as much as possible to simplify the space outlines. All compromises with the actual space are in excess of the actual space required. b. All excursions of a lamp shape are shown relative
38、 to a fixed-position base. c. Lamp eccentricity with respect to the base axis is a combination of allowances for angular tilt (skewness) and lateral displacement (true eccentricity). An eccentricity angle of 3 degrees applies generally to incandescent lamps unless special applications require tighte
39、r limits. d. The base contact-making gauge for each type of base controls the space near the rim of the base in the base-to-neck transition zone. e. All dimensions are in millimeters unless otherwise specified. 7.2 Lamp Data Sheet drawings in Part IV Physical dimensioning of specific lamp types will
40、 be found in Part IV. Drawings of such lamps are product drawings and not lamp space drawings. They define the dimensions of finished lamps. 8 Electrical Characteristics The values of supply voltage to the ANSI base (see C81.61), shown in Part II, are those nominal values for the lamp. 9 Requirement
41、s 9.1 Bases and gauges shall be as described in ANSI C81.61 and C81.63. Each lamp manufacturer must ensure that lamp weight and moment are acceptable to meet safety conditions according to UL1993. 9.2 Individual lamps shall satisfy limits for MOL that apply to their class as shown in Table 1. 9.3 Al
42、l finished lamps shall have controlled dimensions, lamp envelope size, and eccentricity such that they occupy a space within dimensions shown in the appropriate lamp space drawing in Part III. 9.4 Finished lamps of the rim-mounted type shall comply with the dimensions shown in the product drawings i
43、n Part IV. 9.5 Light Emitting Diode (LED) Equipment for Use in Lighting Products shall comply with safety requirements outlined in UL8750 or other applicable UL safety standards. 10 Information for Luminaire Design Certain lamp types listed in Table 1 may have characteristics, which restrict their a
44、pplications. In addition, lamp manufacturers may have issued caution notices or instructions that indicate restrictions in the application of reflector lamps. Observe the following information and the manufacturers notices. 10.1 Burning Position Certain SSL lamps are designed for operating only in s
45、pecific burning positions, and misapplication could cause overheating. C78.50-2014 Page 4 2014 National Electrical Manufacturers Association 10.2 Lampholder Temperature Some of the lamps specified in Table 1 can exhibit base temperatures that are high enough to cause deterioration or damage to some
46、lampholder materials. Those lamps should be used only in lampholders or connectors designed to withstand higher temperatures. 10.3 Base Temperature The lamp manufacturers may provide information that some lamps specified in Table 1, when used in certain luminaires, could generate enough heat to weak
47、en the lamps basing cement, even when the lampholders can withstand the heat. Those lamps shall be used only in luminaires designed to maintain the proper temperature of the bases. 10.4 Damp or Wet Conditions Metal parts of certain lamps may become a shock hazard when moisture is present. De-energiz
48、e the circuits before touching these lamps. Refer to UL 1993 for applicable safety requirements. 10.5 Protective Screen Use of a protective screen to protect persons may be advisable for some lamps. 10.6 Shielding Certain lamps may emit some amount of ultraviolet radiation. Therefore for these lamps, a suitable protective shield, screening technique, or both shall be used with the luminair
