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