1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI C78.1381-1998Electric lamps: 70-Watt,M85 Double-EndedMetal-Halide LampsANSI C78.1381-I 998 Revision of ANSI C78.1381-1989 (R1996) American National Standard Approved August 18, 1998 Secretariat: National Electrical Manufactu
2、rers Association I for electric lamps: irO-Watt, M85 Dou ble-Ended Metal-Halide Lamps 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 existen
3、ce of an American National Standard does not in any respect preclude 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 Ame
4、rican 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 authonty to issue an interpretation of an American National Standard in the name of the American National S
5、tandards Institute. CAUTION NOTICE: This Amencan National Standard may be revised or withdrawn at any time.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
6、may receive current information on all standards by calling or writing the American National I Standards Instaute. Copyright Q1998 by National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 First Edition August 1999 STDmNEMA C78.338L-ENGL 1998 b470247 0527
7、483 7b3 D ANSI C78.1381-1998 Revision of ANSI C78.1381-1989 (R1996) 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 implie
8、s 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 reached by directly and materially affected interests. Substantial agreement means much more than a simpl
9、e 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 National Standard does not in any respect preclude anyone, whether he has approved the standard or not,
10、 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 Standards Institute does not develop standards and will in no circum
11、stances 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. Requests for interpretations should be addressed to the Commit
12、tee 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 require that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of
13、American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. American Standard National Pubished by Information Handling Services/Global Engineering Documents 15 Inverness Way East, Englewood, CO 801 12-5776 Under Contr
14、act with National Electrical Manufacturers Association Copyright Q 1998 by American National Lighting Group In Affiliation with 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
15、, without prior written permission ofthe publisher. Printed in the United States of America i Copyright QI998 by National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 First Edition August 1999 STD=NEMA C78-1381-ENGL 1998 = 6470247 0527484 bTT ANSI C78.13
16、81-1998 Revision of ANSI C78.1381-1989 (R1996) CONTENTS Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v 1 Lamp designation and description . I 2 Nom at ive refe re n ces . . . . . . -. . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I 3 Physical characteristics . . 2 4 Typical lamp outline drawing 3 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 6 Lamp starting
18、voltage and warm-up requirements . 4 7 Reference ballast characteristics . 5 8 Data for ballast and starter design . 6 9 Information for luminaire design 9 Annex A: Informative References . A-I Copyright O 1998 by National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Ross
19、lyn, VA 22209 . 111 First Edition August 1999 STD*NEMA C78-1381-ENGL L978 W 6470247 0527485 53b 9 ANSI C78.1381-1998 Revision of ANSI C78.1381-1989 (R1996) Foreword (This Foreword is not part of ANSI C78.1381-1998.) Suggestions for improvement of this standard should be submitted to the Secretariat
20、C78, National Electrical Manufacturers Association, 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209. This standard was processed and approved by Accredited Standards Committee on Electric Lamps, C78, and its Sub-Committee, C78-4 for High-Intensity Discharge Lamps. Committee approval of the sta
21、ndard does not necessarily imply that all committee members voted for that approval. At the time this standard was published, the C78 Committee had the following members: AI Rousseau, Chair, C78 Richard Parrott, Technical Coordinator Randolph N. Roy, Secretariat Jeanne S. Evans, Coordinating Editor
22、Organization Represented: Name of Representative: Advance Transformer Company ENTERGY Services, Inc GE Lighting Co. Illuminating Engineering Society Intertek Testing Services, Inc. Mag neTek National Electrical Manufacturers Association OSRAM SYLVANIA INC. Philips Lighting Company Undewriters Labora
23、tories, Inc. Norman Gnmshaw William Maguire (Delegate) Rolf Bergman Rita M. Harold Craig Davenport Michael A. Stein (vacant) (Delegate) Peter Bleasby David T. Mullen (Alt.) AI Rousseau David Belt At the time it approved this standard, the C78-4 Sub-Committee had the following members: Michael L. Tan
24、ner, Chair C784 Organization Represented: Name of Representative: Advance Transformer Co. Aromat Corp. Day-brite Lighting Deltona Lighting Products, Inc. ENTERGY Services, Inc. GE Lighting Co. GE Lighting Systems Genlyte Thomas Holophane Lighting Co. Norman Grimshaw Chacko Oommen (Alt.) Beth Jug (Al
25、t.) Dail L. Swanson Bill Busch Don Briner William Maguire Selmar Dorsey Michael M. Minarczyk (Alt.) Michael Owens Byron Collins (Alt.) Rebecca Lancaster (Alt.) Kurt Christensen Michael L. Tanner William Hitchcock (Alt.) Copyright Q 1998 by National Electrical Manufacturen Association 1300 North 17th
26、 Street, Suite 1847, Rosslyn, VA 22209 V First Edition August 1999 Previous page is blank. ANSI C78.1381-1998 Revision of ANSI C78.1381-1989 (R1996) Howard Industries, Inc. Hubbell Lighting, Inc. Industrias Sola Basic Indy Lighting, Inc. Intertek Testing Services, Inc. LithonidHi-Tek Lighting MagneT
27、ek Manufacturera de Reactores OSRAM SYLVANIA INC. Philips Lighting Company Thomas & Betts Corp. Underwriters Laboratories, Inc. Venture Lighting International Venture Power Systems WPI Electronics, Inc. Wayne Causey Jason Cook (Alt.) Isaac L. Flory, IV Emilio Catan G. Antonio Salas (Alt.) Ted Yahrau
28、s Craig Davenport Fred Carpenter Robert Boydston Ernesto Mendoza E. Pablo Garcia &cue (Alt.) Richard A. Parrott Suping Lou (Alt.) Sam Carleton Bill Simpson (Alt.) Greg Steinman David Belt John Marshall (Alt.) Thomas J. Harding Dennis S. Bradley (Alt.) Glenn D. Garbowicz Allan Brown (Alt.) Bruce Davi
29、d vi Copyright O 1998 by National Electrical Manufacturen Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 First Edition August 1999 American National Standard ANSI C78.1381-I 998 for electric lamps- 70-watt, M85 double-ended metal-halide lamps 1 Lamp designation and description Met
30、al-halide lamp designations are assigned in accordance with ANSI C78.380. Designation Bulb Base M 85 PX-70 T6(T20) R7s NOTE-Nominal wattage is 75, see section 5.1 CAUTION: For fused silica bulbs, protection against UV radiation is required. 2 Normative references The following standards contain prov
31、isions which, through reference in this text, constitute provisions of 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 investiga
32、te the possibility of applying the most recent editions of the standards indicated below. ANSI C78.260-1998, ANS for electric lamps-Tubular Tungsten Halogen Lamps- Physical Characteristics ANSI C78.380-1997, ANS for electric lamps-High-Intensity-Discharge Lamps- Method of Designation ANSI C78.387-19
33、95, ANS for electric lamps-Metal-Halide Lamps-Methods of Measurement ANSI C79.1-I 994, ANS for electric lamps-Nomenclature for Glass Bulbs and Molded Glass Flares Intended for Use with Electric Lamps ANSI C81.61-1990 (R1996), ANS forelectricallamp bases ANSI C81.63-1991 (RI 996), ANS for gauges for
34、electric lamp bases and lampholders ANSI C82.4-1992, ANS for electric lamp ballasts-Ballasts for High-Intensify- Discharge and Low Pressure Sodium Lamps (Multiple Supply Type) 1 Copyright O 1998 by National Electrical Manufacturers Association First Edition 1300 North 17th Street, Suite 1847, Rocsly
35、n, VA 22209 August 1999 ANSI C78.1381-1998 Revision of ANSI C78.1381-1989 (Ri996) ANSI C82.5-1990 (RI 995), ANS for electric lamp ballasfs-Reference Ballasts for High-Intensify-Discharge lamps ANSI C82.6-1985 (R1996), ANS for electric lamp ballasts-Ballasts for High-lntensify- Discharge Lamps-Method
36、 of Measurement ANSI/ULI 029-1 994, Standard for High-lntensdy-Discharge Lamp Ballasts ANSI/ULI 572-1 995, Standard for Safety, High-lntensify-Discharge Lighting Fixtures 3 Physical characteristics 3.1 Bulb designations Bulb designations are defined in ANSI C79.1. Due to the long term use of the cus
37、tomary method of bulb designations, their use will continue herein with the equivalent metric bulb designations shown in parentheses (.e. T8 (T25) in contrast with the use of metric primary dimensions elsewhere in this standard. 3.2 Base specifications R7s type bases are specified in ANSI C81.61. Co
38、mpliance shall be checked by the relevant gauges in ANSI C81.63. 3.3 General characteristics With T6 (T20) bulb: Dimensions (see Figure 1) B. Max. base edge to contact length 117.6 mm (4.63 in) C. Contact to contact length 114.2 mm f I .6 mm (4.50 in f 0.06 in) D. Axis to max. tip length . 15 mm (0.
39、59 in) T. Maximum major diameter length . 73 mm (2.87 in) Effective arc length . 7 mm f 3 mm (0.28 in f 0.12 in) Operating position limitation . Horizontal f 45“ Maximum permissible base temperature. .280C (536F) Maximum permissible bulb temperature .500“C (932F) NOTE-Use ANSI C78.260 and C81.61 as
40、a guide when establishing the physical dimensions to assure compatibility with the lampholder system. Pinch height and width dimensions are controlled by the base standard. 2 Copyright 0 1998 by National Electrical Manufadurers Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 First
41、Edition August 1999 STD-NEMA C78-138L-ENGL 1778 6470247 0527489 LB1 ANSI C78.1381-1998 Revision of ANSI C78.1381-1989 (R1996) 3.4 Lamp enclosure (for lamps requiring UV protection) These lamps are not intended for operation in free air, and shall be operated in suitably designed enclosed luminaires.
42、 The luminaires shall also provide protection against UV radiation. See requirements contained in ANSI/UL 1572. The lamp operating and warm-up characteristics given in Sections 5 and 6 apply to lamps operating in a luminaire simulator. Details of suitable simulators which may or may not provide UV p
43、rotection must be obtained from the lamp manufacturer. 4 Typical lamp outline drawing r . CONTACT CENTERLINE (THE LINE BETWEEN THE APEXES OF THE TWO CONTACTS) LOCATION OF EXHAUST TIP NOT SPECIFIED f c I I B / n n DETAIL “C“ Figure i Typical Lamp Outline Drawing Copyright O 1998 by National Electrica
44、l Manufacturen Association 1300 North 17th Street, Suite 1847, Rosslyn, VA 22209 3 First Edition August 1999 STD*NEMA C78-138L-ENGL 3998 = la470247 0527490 9T3 W ANSI C78.1381-1998 Revision of ANSI C78.1381-1989 (RI996) 5 Electrical characteristics See ANSI C78.387 for measurement procedures. Lamps
45、shall be measured in the horizontal position with the internal arc tube fill tip pointing vertically upwards unless otherwise designated by the lamp manufacturer. 5.1 Lamp operating characteristics at I00 hours burning Horizontal* Min Nom Max Voltage at lamp terminals (volts, rms) Lamp current (ampe
46、res, rms) Lamp wattage (Watts) 85 95 105 - 0.95 - - 75 - *Unless otherwise designated by the lamp manufacturer. The preceding lamp operating characteristics are based on operation within a luminaire simulator and in an ambient temperature of 25C f 5C (77F I: 9F) on a reference ballast as shown in Se
47、ction 7. 5.2 Lamp reignition voltage spike The reignition voltage spike during warm-up for any lamp shall not exceed 240 volts peak when operated on a linear reactor ballast having the following characteristics: Supply voltage . 220 volts Ballast short circuit current I .I7 amperes Impedance . 188 o
48、hms Power factor 0.075 f 0.005 Linearity . Requirements identical to reference ballasts (See ANSI C82.5) 5.3 Lamp reignition voltage (Vr) Maximum level through life as measured on a reference ballast in section 7: volts, peak TBD 6 Lamp starting voltage and warm-up requirements See ANSI C78.387 for
49、measurement procedures. 4 Copyright Q 1998 by National Electrical Manufacturers Association 1300 North 17th Street, Suite 1847, Rossiyn, VA 22209 First Edition August 1999 ANSI C78.1381-1998 Revision of ANSI C78.1381-1989 (R1996) Lamps shall be measured in the horizontal position with the internal arc tube fill tip pointing upwards, unless othetwise designated by the lamp manufacturer. 6.1 Lamp starting voltage requirements Lamps shall start within the time specified at the ambient temperature indicated under the following test conditions: (1) power s
