UL 248-15-2018 UL Standard for Safety Low-Voltage Fuses C Part 15 Class T Fuses (Third Edition).pdf
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 248-15 Low-Voltage Fuses - Part 15: Class T Fuses STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED
2、MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Low-Voltage Fuses - Part 15: Class T Fuses, UL 248-15 Third Edition, Dated March 9, 2018 Summary of Topics The third edition of the Standard for Safety for Low-Voltage Fuses - Part
3、15: Class T Fuses, UL 248-15, has been issued to reect the latest ANSI approval date, and to incorporate the following proposals: Corrections in the Table Included as Part of Figure B The revised requirements are substantially in accordance with Proposal(s) on this subject dated August 25, 2017. All
4、 rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by 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 ex
5、pressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event 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 arisi
6、ng out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of 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
7、 electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic
8、Standard on the purchasers computer system. MARCH 9, 2018 UL 248-15 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2018 UL 248-15 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIB
9、UTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-009/248/15-ANCE Third Edition CSA Group CAN/CSA-C22.2 No. 248.15-18 Third Edition Underwriters Laboratories Inc. UL 248-15 Third Edition Low-Voltage Fuses - Part 15: Class T Fuses March 9, 2018 ANSI/UL 248-15-2018U
10、L COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Association of Standardization and Certication (ANCE), the Canadian Standards Association (operating as “CSA Group”), and Underwr
11、iters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSA Group, or UL at anytime. Revisions to this standard will be made only after processing according to the standards development procedures of ANCE, CSA Group, and UL. CSA Group a
12、nd UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. ANCE will incorporate the same revisions into a new edition of the standard bearing the same date of issue as the CSA Group and UL pages. Copyright 2018 Rights reserved i
13、n favor of ANCE. ISBN 978-1-4883-1162-8 2018 Canadian Standards Association 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 review within ve years from the date of publication, and su
14、ggestions 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, and/or gure number;
15、wording of the proposed change; and rationale for the change. To purchase CSA Group Standards and related publications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2018 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighte
16、d 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 the Third Edition. The
17、 most recent designation of ANSI/UL 248-15 as an American National Standard (ANSI) occurred on March 9, 2018. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The National Difference Page and IEC Foreword are also excluded
18、from the ANSI approval of IEC-based standards. 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 https:/. To purchase UL Standard
19、s, visit ULs Standards Sales Site at http:/ HowToOrder.aspx or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PREFACE 4 1 General 6 1.1 Scope .6 4 Classication .6 5 Characteristics6 5.2 Voltage rating
20、6 5.3 Current rating 6 5.5 Interrupting rating.6 5.6 Peak let through current and clearing I 2 t characteristics .7 7 Construction8 7.1 Dimensions 8 8 Tests .13 8.2 Verication of temperature rise and current-carrying capacity .13 8.3 Verication of overload operation 14 8.4 Verication of operation at
21、 rated voltage .14 8.5 Verication of peak let-through current and clearing I 2 t characteristics .15 MARCH 9, 2018 NMX-J-009/248/15-ANCE CAN/CSA-C22.2 NO. 248.15-18 UL 248-15 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is t
22、he harmonized ANCE, CSA Group, and UL standard for Low-Voltage Fuses - Part 15: Class T Fuses. It is the third edition of NMX-J-009/248/15-ANCE, the third edition of CAN/CSA-C22.2 No. 248.15, and the third edition of UL 248-15. This edition of NMX-J-009/248/15-ANCE supersedes the previous edition pu
23、blished on August 1, 2000. This edition of CAN/CSA-C22.2 No. 248.15 supersedes the previous edition published on August 1, 2000. This edition of UL 248-15 supersedes the previous edition published on August 1, 2000. This harmonized standard was prepared by the Association of Standardization and Cert
24、ication, (ANCE), CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Subcommittee, CANENA THC 32, Low Voltage Fuses and Fuseholders on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefully acknow
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