ANSI UL 4248-8-2018 UL Standard for Safety Fuseholders C Part 8 Class J (Second Edition).pdf
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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 4248-8 Fuseholders Part 8: Class J STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AU
2、THORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Fuseholders Part 8: Class J, UL 4248-8 Second Edition, Dated April 30, 2018 Summary of Topics The Second Edition of the Standard for Safety for Fuseholders Part 8: Class J, UL 4248-8, has been iss
3、ued to reect the latest ANSI approval date, and to incorporate the following proposals: Corrections to Tables found in Figures 7A, 7B and 7C and revision to Figure 7C. Correction to Table 8.4A. The revised requirements are substantially in accordance with Proposal(s) on this subject dated August 25,
4、 2017. All 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,
5、 either expressed 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 dam
6、ages 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 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. Us
7、ers of the 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 e
8、lectronic Standard on the purchasers computer system. APRIL 30, 2018 UL 4248-8 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 30, 2018 UL 4248-8 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO
9、N OR DISTRIBUTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-009/4248/8-ANCE Second Edition CSA Group CAN/CSAC22.2 No. 4248.8-18 Second Edition Underwriters Laboratories Inc. UL 4248-8 Second Edition Fuseholders Part 8: Class J April 30, 2018 ANSI/UL 4248-8-2018U
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 ANCE Rights reser
13、ved in favor of ANCE. ISBN 978-1-4883-1160-4 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, a
14、nd 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, and/or gure num
15、ber; 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 copyr
16、ighted 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 Second Editio
17、n. The most recent designation of ANSI/UL 4248-8 as an American National Standard (ANSI) occurred on April 30, 2018. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. Comments or proposals for revisions on any part of the St
18、andard 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 Standards, visit ULs Standards Sales Site at http:/ HowToOrder.aspx or call toll-free 1-888-853-3503.UL COPYRIGH
19、TED 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 Characteristics 6 5.1 Summary of characteristics 6 6 Marking 6 6.1 Marking of fuseholder .6 7 Construction 6 7.6 Contacts of a cartridge fus
20、eholder 6 8 Tests .10 8.1 General 10 8.4 Verication of temperature rise 10 APRIL 30, 2018 NMX-J-009/4248/8-ANCE CAN/CSAC22.2 NO. 4248.8-18 UL 4248-8 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized ANCE, CSA Gr
21、oup, and UL standard for Fuseholders Part 8: Class J. It is the second edition of NMX-J-009/4248/8-ANCE, the second edition of CSA C22.2 No. 4248-8, and the second edition of UL 4248-8. This edition of NMX-J-009/4248/8-ANCE supersedes the previous edition published on February 28, 2007. This edition
22、 of CSA C22.2 No. 4248-8 supersedes the previous edition published on February 28, 2007. This edition of UL 4248-8 supersedes the previous edition published on February 28, 2007. This harmonized standard was prepared by the Association of Standardization and Certication, (ANCE), CSA Group and Underw
23、riters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Subcommittee, THSC 32B, Low Voltage Fuses on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefully acknowledged. This standard is considered suitable for use for co
24、nformity assessment within the stated scope of the standard. This standard was reviewed by the CSA Subcommittee on Fuses and Fuseholders, under the jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and h
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