1、UL 498ISBN 0-7629-0028-8Attachment Plugs andReceptaclesJanuary 21, 1999 UL 498 tr1Underwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbrook, IL 60062-2096UL Standard for SafetyforAttachment Plugs and Receptacles, UL 498Thirteenth Edition, Dated April 26, 1996Revisions: This Standard contains r
2、evisions through and including January 21, 1999.A change is indicated by a note following the affected item. The note is preceded and followed by an asterisk.The new and revised requirements are substantially in accordance with ULs Bulletins on this subject dated July30, 1998 and August 18, 1998 and
3、 Adoption Bulletin dated November 30, 1998. These bulletins are nowobsolete and may be discarded.The revisions dated January 21, 1999 include a reprinted title page (page 1) for this Standard.As indicated on the title page (page 1), this UL Standard for Safety is an American National Standard. Atten
4、tionis directed to the note on the title page of this Standard outlining the procedures to be followed to retain theapproved text of this ANSI/UL Standard.As indicated on the title page (page 1), this UL Standard for Safety has been adopted by the Department ofDefense.The master for this Standard at
5、 ULs Northbrook Office is the official document insofar as it relates to a ULservice and the compliance of a product with respect to the requirements for that product and service, or if thereare questions regarding the accuracy of this Standard.ULs Standards for Safety are copyrighted by UL. Neither
6、 a printed copy of a Standard, nor the distributiondiskette for a Standard-on-Diskette and the file for the Standard on the distribution diskette should be alteredin any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shallremain the sole and exclusive
7、property of UL.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmittedin any form by any means, electronic, mechanical photocopying, recording, or otherwise without priorpermission of UL.Revisions of UL Standards for Safety are issued from tim
8、e to time. A UL Standard for Safety is current only ifit incorporates the most recently adopted revisions.UL provides this Standard as is without warranty of any kind, either expressed or implied, including but notlimited to, the implied warranties of merchantability or fitness for any purpose.In no
9、 event will UL be liable for any special, incidental, consequential, indirect or similar damages, includingloss of profits, lost savings, loss of data, or any other damages arising out of the use of or the inability to usethis Standard, even if UL or an authorized UL representative has been advised
10、of the possibility of suchdamage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardlessof the form of the claim.tr2 January 21, 1999 UL 498UL will attempt to answer support requests concerning WordPerfect, Envoy, and Standards-on-Diskette.However, th
11、is support service is offered on a reasonable efforts basis only, and UL may not be able to resolveevery support request. UL supports a Standards-on-Diskette only if it is used under the conditions and operatingsystems for which it is intended. ULs support policies may change from time-to-time witho
12、ut notification.UL reserves the right to change the format, presentation, file types and formats, delivery methods and formats,and the like of both its printed and electronic Standards without prior notice.Standards-on-Diskette purchasers agree to defend, indemnify, and hold UL harmless from and aga
13、inst anyloss, expense, liability, damage, claim, or judgement (including reasonable attorneys fees) resulting from anyerror or deviation introduced while purchaser is storing a Standard-on-Diskette on the purchasers computersystem.If a single-user version Standards-on-Diskette was purchased, one cop
14、y of this Standard may be stored on thehard disk of a single personal computer, or on a single LAN file-server or the permanent storage device of amultiple-user computer in such a manner that this Standard may only be accessed by one user at a time andfor which there is no possibility of multiple co
15、ncurrent access. The original distribution diskette should be storedin a safe place.If a multiple-user version Standards-on-Diskette was purchased, one copy of the Standard may be stored ona single LAN file-server, or on the permanent storage device of a multiple-user computer. The number ofconcurre
16、nt users shall not exceed the number of users authorized for the Standards-on-Diskette version. Theoriginal distribution diskette should be stored in a safe place.Standards-on-Diskette are intended for on-line use, such as for viewing the requirements of a Standard,conducting a word search, and the
17、like. Only one copy of the Standard may be printed from each single-userversion of a Standards-on-Diskette. Only one copy of the Standard may be printed for each authorized userof a multiple-user version of a Standards-on-Diskette. An employee of an organization purchasing a Standard-on-Diskette can
18、 make a copy of the page or pages being viewed for their own fair and/or practical internal use.Because of differences in the computer/software/printer setup used by UL and those of Standards-on-Diskettepurchasers, the printed copy obtained by a purchaser may not look exactly like the on-line screen
19、 view or theprinted Standard.The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, figures,and/or other elements of the Standard having future effective dates as indicated in the note following theaffected item. The prior text for requirements that have
20、been revised and that have a future effective date arelocated after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice.New product submittals made prior to a specified future effective date will be judged under all of therequirements in this Standard including those requirements with
21、 a specified future effective date, unless theapplicant specifically requests that the product be judged under the current requirements. However, if theapplicant elects this option, it should be noted that compliance with all the requirements in this Standard willbe required as a condition of contin
22、ued Listing, Recognition, and Follow-Up Services after the effective date,and understanding of this should be signified in writing.Copyright 1999 Underwriters Laboratories Inc. January 21, 1999 UL 498 tr3This Standard consists of pages dated as shown in the following checklist:Page Datetr1 tr4 . Jan
23、uary 21, 19991 . April 26, 1996 (Reprinted January 21, 1999)2 . August 30, 19963 . January 21, 19994 . June 26, 19985, 6 . January 21, 19997 . June 26, 19988 10, 10A, 10B, 11, 12, 12A, 12B . January 21, 199913, 14 . June 26, 199815 19 . January 21, 199920 . April 26, 199621, 22, 22A, 22B . June 26,
24、199823, 24 . April 26, 199625 28, 28A, 28B . June 26, 199829, 30 . April 26, 199631 . June 26, 199832 35 . April 26, 199636, 36A, 36B, 37, 38 . June 26, 199839 48 . April 26, 199649 . June 26, 199850 . January 21, 199951 53 . April 26, 199654, 55 . November 5, 199756 . April 26, 199657, 58 . Novembe
25、r 5, 199759, 60, 60A, 60B . September 15, 199861 64 . November 5, 199765 . April 26, 199666 76 . June 26, 199877 . January 21, 199978 80 . June 26, 199881 . January 21, 199982 85 . April 26, 199686 90, 90A, 90B, 91, 92, 92A, 92B . June 26, 199893 . April 26, 199694, 94A, 94B, 95, 96, 96A, 96B . Janu
26、ary 21, 199997 . April 26, 199698 . September 22, 199799 102, 102A, 102B . June 26, 1998103 106 . April 26, 1996107, 108, 108A . June 26, 1998108B, 108C, 108D, 109 . January 21, 1999110 113 . April 26, 1996114 . September 22, 1997115 . February 28, 1997116 120, 120A, 120B . June 26, 1998121 132 . Ap
27、ril 26, 1996133, 134, 134A, 134B . June 26, 1998135 . April 26, 1996136, 137, 138, 138A, 138B . June 26, 1998tr4 January 21, 1999 UL 498Page Date139 145 . April 26, 1996146 . June 26, 1998147 150 . April 26, 1996151, 152, 152A, 152B . June 26, 1998153 155 . April 26, 1996156, 157 . January 21, 19991
28、58 160, 160A . June 26, 1998160B, 160C . September 15, 1998160D . June 26, 1998161, 162 . November 5, 1997162A, 162B . June 26, 1998163, 164, 164A, 164B, 165 168, 168A, 168B . January 21, 1999169, 170 . April 26, 1996171, 172 . June 26, 1998173, 174 . April 26, 1996175 . January 19, 1998176 . June 2
29、6, 1998177 . April 26, 1996178 . June 26, 1998179 . January 19, 1998180 . June 26, 1998181 . January 21, 1999182, 182A, 182B . November 5, 1997183 186 . April 26, 1996187 . June 26, 1998188, 189, 190, 190A . September 15, 1998190B . January 21, 1999sa1 . June 26, 1998sa2 . April 26, 1996sa3, sa4 . J
30、une 26, 1998sa5 sa7 . April 26, 1996sa8, sa9 . January 19, 1998sa10 . April 26, 1996sa11 . June 26, 1998sa12, sa12A, sa12B, sa12C, sa12D, sa13, sa14, sa14A, sa14B . February 28, 1997sa15 sa24 . April 26, 1996sa25 sa27 . June 26, 1998sa28 sa30 . April 26, 1996SB1 SB10 . January 21, 1999SC1 SC10 . June 26, 1998A1, A2 .