UL 496-2008 UL Standard for Safety Lampholders (Thirteenth Edition Reprint with revisions through and including November 25 2013)《灯座》.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 496 LampholdersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI

2、STRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Lampholders, UL 496 Thirteenth Edition, Dated September 30, 2008 Summary of Topics These revisions to UL 496 include the following changes in requirements: Clarify RTI temperature marking to avoid interferance with IEC T-marking Revisi

3、on to the scope of the standard to clarify that outlet-box lampholders with shades are not covered Addition of ratings for GU24 lampholders Addition of test method for Switched GU24 Lampholders Revision of mold stress-relief test method to address temperature rated uorescent lampholders Clarication

4、of Mechanical Properties Test for bipin lampholders for use with instant- start electronic ballast Clarication of the application of the “I” in a circle lampholder marking Clarify terminology in 4.2.2.1 Text that has been changed in any manner or impacted by ULs electronic publishing system is marke

5、d with a vertical line in the margin. The revised requirements are substantially in accordance with Proposal(s) on this subject dated February 24, 2012 and March 15, 2013. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by

6、any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no e

7、vent will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of

8、 the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss,

9、expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. NOVEMBER 25, 2013 UL 496 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE

10、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the preface. The prior text for requirements that have

11、been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. Future Effective Date References November 25, 2015 Paragraph 7.5.1, Tables 6

12、 and 20 NOVEMBER 25, 2013 UL 496 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CSA Group CSA C22.2 No. 43-08 Sixth Edition Underwriters Laboratories Inc. UL 496 Thirteenth Edition Lampholders September 30, 2008 (Title Page Reprinted: No

13、vember 25, 2013) ANSI/UL 496-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Canadian Standards Association (operating as “CSA Group”) and Underwriters Laboratories Inc. (U

14、L). Comments or proposals for revisions on any part of the standard may be submitted to CSA Group or UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of CSA Group and UL. CSA Group and UL will issue revisions to this stan

15、dard by means of a new edition or revised or additional pages bearing their date of issue. ISBN 978-1-55491-028-1 2008 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. This Standard is subject to period

16、ic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquirescsagroup.org and include “Proposal for change” in the subject line: Standard designation (number); relevant clause, table, a

17、nd/or gure number; wording of the proposed change; and rationale for the change. To purchase CSA Group Standards and related publications, visit CSA Groups Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2013 Underwriters Laboratories Inc. ULs Standards for

18、 Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of

19、the Thirteenth Edition including revisions through November 25, 2013 The most recent designation of ANSI/UL 496 as an American National Standard (ANSI) occurred on November 25, 2013 ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the P

20、reface. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. To purchase UL Standards, visit Comm 2000 at http:/m- or call t

21、oll-free 1-888-853-3503. NOTE The users attention is called to the possibility that compliance with this standard may require use of an invention covered by patent rights. By publication of this standard, no position is taken with respect to the validity of this claim or of any patent rights in conn

22、ection there with. The patent holder has, however, led a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license. Details may be obtained from UL.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR

23、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .5 1 Scope .7 2 Denitions 7 3 General .12 3.1 Components 12 3.2 Units of Measurement 12 3.3 Reference Publications .12 3.4 Terminology 15 4 Construction .15 4.1 Enclosures .15 4.2 Insulating Materials 15 4.3 Sealing Co

24、mpound .16A 4.4 Mounting .17 4.5 Accessibility of Live Parts 20 4.6 Corrosion Protection .21 4.7 Current-Carrying Parts .21 4.8 Supply Connections .22 4.9 Creepage Distances and Clearances 26 4.10 Screw Devices .27 4.11 Screw Lampholders for Use in Wet or Damp Locations .33 4.12 Pulse-Rated Lamphold

25、ers .34 4.13 Lamplocks .34A 4.14 Ceiling outlet-box lampholders 34A 5 Tests 34A 5.1 All Lampholders 34A 5.2 Screw Lampholders 36 6 Ratings 50A 6.1 Screw Lampholders 50A 6.2 Lampholders Other Than Screw-Type 51 7 Markings 51 7.1 General 51 7.2 Permanence 52 7.3 Lampholders for Factory Assembly 52 7.4

26、 Details .53 7.5 Temperature Rating .55 SUPPLEMENT SA LAMPHOLDER ADAPTERS AND LOAD FITTINGS SA1 Scope 74A SA2 General .74A SA3 Screwshell Size Adapters .74A SA4 Lampholder Fittings .77 SA5 Temperature Test of Lampholder Fitting .77 NOVEMBER 25, 2013 CSA C22.2 NO. 43-08 UL 496 3UL COPYRIGHTED MATERIA

27、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SB NAVAL-USE LAMPHOLDERS SB1 Scope .79 SB2 Naval-Use Screw Lampholders General 79 SB3 Naval-Use Screw Lampholders Materials .90 SB4 Naval-Use Screw Lampholders Current-Carrying Parts .91 SB5 Naval-Use Lam

28、pholders And Starter Holders For Fluorescent Lamps General 92 SB6 Naval-Use Lampholders And Starter Holders For Fluorescent Lamps Materials .97 SB7 High Temperature Test 97 SB8 Dielectric Voltage-Withstand Test .97 SB9 Screw Lampholders Security Tests of Screwshells 97 SB10 Lampholders And Starter H

29、olders For Fluorescent Lamps Pull Test-Leads 97 SB11 Markings 98 SUPPLEMENT SC DIODE LAMP-LIFE EXTENDERS SC1 Scope .99 SC2 Construction 99 SC3 Marking 99 SC4 Tests .100 SC4.1 Accelerated aging .100 SC4.2 Thermal cycling .100 SC4.3 Dielectric strength .101 SC4.4 Limited short circuit 101 SUPPLEMENT S

30、D LAMPHOLDERS FOR INSTANT-START FLUORESCENT LAMPS SD1 Scope 102 SD2 General .102 SD3 Material Properties of Lampholders 102 SD4 Mechanical Properties of Lampholders .102 SD5 Marking .102 ANNEX A (normative) Standards for Components A1 Component Standards .104 SEPTEMBER 30, 2008 CSA C22.2 NO. 43-08 U

31、L 496 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the common CSA and UL standard for lampholders. It is the sixth edition of CSA C22.2 No. 43, and the thirteenth edition of UL 496. This edition of CSA C22.2 No. 43 supers

32、edes the previous editions published in 2004, 1984, 1965, 1958, and 1937. This edition of UL 496 supersedes the previous edition published in 2004. This common standard was prepared by a task force comprising members representing the Canadian Standards Association (CSA), Underwriters Laboratories In

33、c. (UL), NEMA (National Electrical Manufacturers Association), and EFC (Electro-Federation Canada). The efforts and support of the Technical Harmonization Committee for Lampholders of the Council on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA) are gratefull

34、y acknowledged. This standard is considered suitable for use for conformity assessment within the stated scope of the standard. This standard was reviewed by the CSA Integrated Committee on Lighting Products, under the jurisdiction of the CSA Technical Committee on Consumer and Commercial Products a

35、nd the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. A UL standard is current only if it inco

36、rporates the most recently adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. Where reference is made to a specic number of samples to be tested, the specied number is to be considered a minimum quantity. Note: Although the

37、 intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of harmonization This standard uses the IEC format but is not based on, nor is i

38、t to be considered equivalent to, an IEC standard. This standard is published as an identical standard for CSA and UL. An identical standard is a standard that is exactly the same in technical content except for national differences resulting from conicts in codes and governmental regulations. Prese

39、ntation is word for word except for editorial changes. Reasons for differences from IEC This standard provides requirements for Lampholders in accordance with the codes of Canada and USA. At present there is no IEC standard for Lampholders for use in accordance with these codes. Therefore, this stan

40、dard does not employ any IEC standard for base requirements. SEPTEMBER 30, 2008 CSA C22.2 NO. 43-08 UL 496 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Interpretations The interpretation by the standards development organization of an id

41、entical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rules of the standards development organization. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as poss

42、ible to each of the standards development organizations to more accurately reect the intent. CSA effective date The effective date for CSA International will be announced through CSA Informs or a CSA Certication Notice. UL effective date As of November 25, 2013, all products Listed or Recognized by

43、UL must comply with the requirements in this standard except for the clause and tables in the following list, which are effective November 25, 2015: Clause 7.5.1, Table 6 and Table 20. Between November 25, 2013 and November 25, 2015, new product submittals to UL may be evaluated under all requiremen

44、ts in this standard, or if requested in writing, evaluated under presently effective requirements only. A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard. NOVEMBER 25, 2013 CSA C22.2 NO. 43-08 UL 496 6UL COPYRIGHTED MATERIAL NOT AU

45、THORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1 Scope 1.1 The requirements of this standard cover holders and connectors for electric lamps, including incandescent, uorescent, and other electric-discharge-type lamps, rated as indicated in Clause 6, to be used in accord

46、ance with the Canadian Electrical Code (CEC), Part I, C22.1, and the National Electrical Code (NEC), ANSI/NFPA 70. 1.2 These requirements cover screw lampholders, including those intended to be mounted directly on an outlet-box, lampholders for special uses, lampholders for electric signs, and adapt

47、ers that convert one lampholder size to another. 1.3 These requirements also cover holders for automatic starters used with uorescent lamps. 1.4 These requirements also cover GU24 and GU24-1 holders for uorescent and LED self-ballasted lamps and uorescent lamp adapters with mating pin bases. 1.5 The

48、se requirements also cover indicator lamps. 1.6 These requirements also cover lampholder inserts. 1.7 These requirements also cover naval-use lampholders. See Supplement SB. 1.8 These requirements do not cover uorescent self-ballasted lamps and uorescent lamp adapters covered in UL 1993. 1.9 These r

49、equirements do not cover seasonal-lighting lampholders, which are covered in UL 588, and CSA C22.2 No. 37. 1.10 These requirements do not cover electrode receptacles for use in gas-tube signs, which are covered in UL 879 and CSA C22.2 No. 34. 1.11 These requirements do not cover devices requiring a cross-bar, mounting strap, or other mounting means; such devices are considered to be luminaires. 1.12 These requirements do not cove