1、Low-Voltage Fuses Part 6: Class H Non-RenewableFusesAugust 1, 2000(Title Page Reprinted: August 11, 2005)Canadian StandardsAssociationCAN/CSA-C22.2 No. 248.6-00Second EditionUnderwriters LaboratoriesInc.UL 248-6Second EditionANSI/UL 248-6-2005National Association ofStandardization andCertification o
2、f the ElectricalSectorNMX-J-009/248/6-2000-ANCEFirst EditionCommitment for AmendmentsThis Standard is issued jointly by the National Association of Standardization andCertification of the Electrical Sector (ANCE), CSA International, and UnderwritersLaboratories Incorporated (UL). Amendments to this
3、Standard will be made onlyafter processing according to the Standards writing procedures by ANCE, CSA,and UL.Revisions of this Standard will be made by issuing revised or additional pagesbearing their date of issue. A UL Standard is current only if it incorporates themost recently adopted revisions,
4、 all of which are itemized on the transmittal noticethat accompanies the latest set of revised requirements.Copyright 2000ANCERights reserved in favorof ANCEISBN 1-55324-236-XCopyright 2000CSA InternationalAll rights reserved. Nopart of this publicationmay be reproduced inany form whatsoeverwithout
5、the priorpermission of thepublisher.ISBN 0-7629-0556-5Copyright 1996,2000UnderwritersLaboratories Inc.Update No. 3CAN/CSA-C22.2 No. 248.6-00August 2005Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for inform
6、ation about the CSA Standards Update Service.Title: Low-Voltage Fuses Part 6: Class H Non-Renewable Fuses originally published August 2000Revisions issued: Update No. 2 November 2004If you are missing any updates, please contact CSA Information Products Sales or visit www.ShopCSA.ca.The following re
7、visions have been formally approved and are marked by a vertical line in the margin on the attached replacement pages:Revised Title page, copyright page, Contents, Preface, and Clauses 1 and 8.2.4New Clause 8.1Deleted Foreword (ANCE) and Foreword (UL)CAN/CSA-C22.2 No. 248.6-00 originally consisted o
8、f 14 pages, each dated August 2000. It now consists of the following pages:August 2000 1012November 2004 CoverAugust 2005 19 and 1316Update your copy by inserting these revised pages.Keep the pages you remove for reference.Commitment for AmendmentsThis Standard is issued jointly by the National Asso
9、ciation of Standardization andCertification of the Electrical Sector (ANCE), CSA International, and UnderwritersLaboratories Incorporated (UL). Amendments to this Standard will be made onlyafter processing according to the Standards writing procedures by ANCE, CSA,and UL.Revisions of this Standard w
10、ill be made by issuing revised or additional pagesbearing their date of issue. A UL Standard is current only if it incorporates themost recently adopted revisions, all of which are itemized on the transmittal noticethat accompanies the latest set of revised requirements.Copyright 2000,2005 ANCERight
11、s reserved in favorof ANCEISBN 1-55324-236-XCopyright 2000Canadian StandardsAssociationAll rights reserved. Nopart of this publicationmay be reproduced inany form whatsoeverwithout the priorpermission of thepublisher.ISBN 0-7629-0556-5Copyright 1996,2005UnderwritersLaboratories Inc.Update No. 2 C22.
12、2 No. 248.6-00 November 2004 Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service. Title: Low-Voltage Fuses Part 6: Class H Non-Renewable Fuses originally publ
13、ished August 2000 The following revisions have been formally approved: Revised Outside front cover, inside front cover, and title page New None Deleted None CSA C22.2 No. 248.6-00 originally consisted of 16 pages each dated August 2000. It now consists of the following pages: August 2000 316 Novembe
14、r 2004 Cover, title page, and copyright page Update your copy by inserting these revised pages. Keep the pages you remove for reference. CAN/CSA-C22.2 No. 248.6-00A National Standard of Canada(approved November 2004)Low-Voltage Fuses Part 6: Class H Non-Renewable Fuses The Canadian Standards Associa
15、tion (CSA), under whose auspices this National Standard has been produced, was chartered in 1919 and accredited by the Standards Council of Canada to the National Standards system in 1973. It is a not-for-profit, nonstatutory, voluntary membership association engaged in standards development and cer
16、tification activities. CSA standards reflect a national consensus of producers and users including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The standards are used widely by industry and commerce and often adopted by municipal, provincial,
17、 and federal governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. Individuals, companies, and associations across Canada indicate their support for CSAs standards development by volunteering their time and skills to CSA Commi
18、ttee work and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are chosen. Sustaining memberships represent a major source of income for CSAs
19、 standards development activities. The Association offers certification and testing services in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Association regularly and continually audits and inspects products that be
20、ar the CSA Mark. In addition to its head office and laboratory complex in Toronto, CSA has regional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 1919, the Association has developed the necessary expertise to meet its corporate mission: C
21、SA is an independent service organization whose mission is to provide an open and effective forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to meet national and international needs. For further information on CSA s
22、ervices, write to Canadian Standards Association 5060 Spectrum Way, Suite 100 Mississauga, Ontario, L4W 5N6 Canada The Standards Council of Canada is the coordinating body of the National Standards system, a federation of independent, autonomous organizations working towards the further development
23、and improvement of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of advancing the national economy, benefiting the health, safety, and welfare of the public, assisting and protecting the consume
24、r, facilitating domestic and international trade, and furthering international cooperation in the field of standards. A National Standard of Canada is a standard which has been approved by the Standards Council of Canada and one which reflects a reasonable agreement among the views of a number of ca
25、pable individuals whose collective interests provide to the greatest practicable extent a balance of representation of producers, users, consumers, and others with relevant interests, as may be appropriate to the subject in hand. It normally is a standard which is capable of making a significant and
26、 timely contribution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not refer to the technical content of the standard; this remains the
27、continuing responsibility of the accredited standards-development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic review; therefore, users are cautioned to obtain the latest editio
28、n from the organization preparing the standard. The responsibility for approving National Standards of Canada rests with the Standards Council of Canada 270 Albert Street, Suite 200 Ottawa, Ontario, K1P 6N7 Canada Cette Norme nationale du Canada est offerte en anglais et en franais. Although the int
29、ended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users to judge its suitability for their particular purpose. Registered trade-mark of Canadian Standards Association National Association of Standardization and Certif
30、ication of the Electrical Sector NMX-J-009/248/6-2000-ANCE First Edition Canadian Standards Association CAN/CSA-C22.2 No. 248.6-00 Second Edition Underwriters Laboratories Inc. UL 248-6 Second Edition Low-Voltage Fuses Part 6: Class H Non-Renewable Fuses August 1, 2000 (Title page reprinted: Novembe
31、r 2004) (approved November 2004) Commitment for Amendments This Standard is issued jointly by the National Association of Standardization and Certification of the Electrical Sector (ANCE), CSA International, and Underwriters Laboratories Incorporated (UL). Amendments to this Standard will be made on
32、ly after processing according to the Standards writing procedures by ANCE, CSA, and UL. Revisions of this Standard will be made by issuing revised or additional pages bearing their date of issue. A UL Standard is current only if it incorporates the most recently adopted revisions, all of which are i
33、temized on the transmittal notice that accompanies the latest set of revised requirements. Copyright 2000 ANCE Rights reserved in favor of ANCE ISBN 1-55324-236-X Copyright 2000 Canadian Standards Association All rights reserved. No part of this publication may be reproduced in any form whatsoever w
34、ithout the prior permission of the publisher. ISBN 0-7629-0556-5 Copyright 1996, 2000 Underwriters Laboratories Inc. (Copyright page replaced November 2004) General Instruction No. 1C22.2 No. 248.6-00August 2000Title: Low-Voltage Fuses Part 6: Class H Non-Renewable FusesPagination: 16 pages, each da
35、ted August 2000To register for e-mail notification about any updates to this publicationgo to shop.csa.caclick on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2011329.If you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2
36、233.Visit CSA Groups policy on privacy at csagroup.org/legal to find out how we protect your personal information.Low-Voltage Fuses Part 6: Class H Non-RenewableFusesAugust 1, 2000CSA InternationalCSA C22.2 No. 248.6-00Second EditionUnderwriters LaboratoriesInc.UL 248-6Second EditionNational Associa
37、tion ofStandardization andCertification of the ElectricalSectorNMX-J-009/248/6-2000-ANCEFirst EditionCONTENTSPreface .41 General 91.1 Scope .94 Classification .95 Characteristics 95.2 Voltage rating 95.3 Current rating 95.5 Interrupting rating 106 Marking .106.1 Marking of fuses 107 Construction .10
38、7.1 Dimensions .108 Tests .138.1 Fuses for operation test 138.2 Verification of temperature rise and current-carrying capacity .138.3 Verification of overload operation 148.4 Verification of operation at rated voltage .149 Special Tests 149.1 General 149.2 Verification of low melting point P (D for
39、time delay) characteristic .15AUGUST 11, 2005 NMX-J-009/248/6-2000-ANCE CAN/CSA-C22.2 NO. 248.6-00 UL 248-6 3PrefaceThis is the common UL, CSA, and ANCE Standard for Low-Voltage Fuses Part 6: Class HNon-Renewable Fuses. This is the second edition of CAN/CSA-C22.2 No. 248.6-00 (superseding the firste
40、dition, published in 1996), the second edition of UL 248-6, and the first edition ofNMX-J-009/248/6-2000-ANCE.This Standard was prepared by a Technical Harmonization Committee comprised of members fromUnderwriters Laboratories, CSA International, the National Association of Standardization andCertif
41、ication of the Electrical Sector, the end product manufacturers, and material suppliers. The effortsand support of the members of the Technical Harmonization Committee are gratefully acknowledged.The present Mexican Standard was developed by the TC 32 Fuses from the Comite de Normalizacion dela Asoc
42、iacion de Normalizacion y Certificacion, A.C., CONANCE, with the collaboration of the fusemanufacturers and users.This Standard was reviewed by the CSA Subcommittee on Fuses and approved by the TechnicalCommittee on Industrial Products under the jurisdiction of the CSA Strategic Steering Committee o
43、n theRequirements for Electrical Safety.This Standard has been approved by the American National Standards Institute (ANSI) as an AmericanNational Standard.The most recent designation of ANSI/UL 248-6 as an American National Standard (ANSI) occurred onAugust 1, 2005.This ANSI/UL Standard for Safety,
44、 which consists of the Second edition with revisions through August 11,2005, is under continuous maintenance, whereby each revision is ANSI approved upon publication.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
45、 Proposal Request in ULs On-Line Collaborative StandardsDevelopment System (CSDS) at http:/.Note: Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains theresponsibility of the users of the Standard to judge its suitability for the
46、ir particular purpose.Level of HarmonizationThis trinational standard is published as an Identical Standard. An identical standard is a standard that isthe same in technical content except for conflicts in Codes and Governmental Regulations. Presentationis word for word except for editorial changes.
47、InterpretationsThe interpretation by the SDO (Standards Development Organization) of an identical standard shall bebased on the literal text to determine compliance with the standard in accordance with the proceduralrules of the SDO. If more than one interpretation of the literal text has been ident
48、ified, a revision shall beproposed as soon as possible to each of the SDOs to more accurately reflect the intent.ANCE Effective DateThe effective date for ANCE will be announced through the Diario Oficial de la Federation (OfficialGazette) and is indicated on the cover page.AUGUST 11, 2005NMX-J-009/
49、248/6-2000-ANCE CAN/CSA-C22.2 NO. 248.6-00 UL 248-64CSA Effective DateThe effective date for CSA will be announced through CSA Informs or CSA Certification Notice.UL Effective DateThis edition of the standard is now in effect.AUGUST 11, 2005 NMX-J-009/248/6-2000-ANCE CAN/CSA-C22.2 NO. 248.6-00 UL 248-6 5This page intentionally left blank.AUGUST 11, 2005NMX-J-009/248/6-2000-ANCE CAN/CSA-C22.2 NO. 248.6-00 UL 248-66AUGUST 11, 2005 NMX-J-009/248/6-2000-ANCE CSA C22.2 NO. 248.6-00 UL 248-6 7Foreword (CSA) T
