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1、UL 745-2-5Particular Requirements for Circular Saws and Circular KnivesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from JULY 23, 2007 UL 745-2-5tr3Underwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbroo
2、k, IL 60062-2096UL Standard for Safety for Particular Requirements for Circular Saws and Circular Knives, UL 745-2-5Second Edition, Dated July 16, 2007Revisions: This Standard contains revisions through and including July 23, 2007.Summary of TopicsThe Second edition was issued to clarify the UL effe
3、ctive date statement shown on the Preface page and to make other administrative changes. The technical content of the First edition has been reproduced verbatim in this edition; the text of the standard has not been changed. The revisions dated July 23, 2007 were issued to correct a typo in the effe
4、ctive date.As noted in the Commitment for Amendments statement located on the back side of the title page, UL and CSA are committed to updating this IEC-based binational standard jointly. However, this Second edition dated July 16, 2007 and revisions dated July 23, 2007 will not be issued by CSA sin
5、ce it addresses UL only administrative changes.Text that has been changed in any manner is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on whi
6、ch the changed requirement becomes effective.The UL Foreword is no longer located within the UL Standard. For information concerning the use and application of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfoNet at: The master for this
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19、andard, conducting a word search, and the like. Only one copy of the Standard may be printed from each single-user version of an electronic Standard. Only one copy of the Standard may be printed for each authorized user of a multiple-user version of an electronic Standard. Because of differences in
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21、 being viewed for their own fair and/or practical internal use.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 preface. The prior text for requirements
22、 that have been revised and that have a future effective date are located 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 the requirements in this Standard including those requ
23、irements with a specified future effective date, unless the applicant specifically requests that the product be judged under the current requirements. However, if the applicant elects this option, it should be noted that compliance with all the requirements in this Standard will be required as a con
24、dition of continued Listing, Recognized and Follow-Up Services after the effective date, and understanding of this should be signified in writing.Copyright 2007 Underwriters Laboratories Inc.This Standard consists of pages dated as shown in the following checklist:PageDate1-4 . July 16, 20075 . July
25、 23, 20076-20 . July 16, 2007This PDF Standard downloaded from No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULCanadian Standards AssociationCAN/CSA-C22.2 No. 745-2-5First EditionUnderwriters Laboratories Inc. UL 745-2-5Se
26、cond EditionParticular Requirements for Particular Requirements for CircularSaws and Circular KnivesJuly 16, 2007UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from Commitment for AmendmentsThis Standard is issue
27、d jointly by Canadian Standards Association and Underwriters Laboratories Incorporated. Amendments to this Standard will be made only after processing according to the Standards writing procedures by both Canadian Standards Association and Underwriters Laboratories Incorporated.ISBN 0317-5669 1995Ca
28、nadian Standards AssociationAll rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.Copyright 1995, 2007 Underwriters Laboratories Inc.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHO
29、UT PERMISSION FROM ULJULY 16, 2007CAN/CSA-C22.2 NO. 745-2-5UL 745-2-53CONTENTSPreface . .51 Scope . .72 Definitions . .73 General requirement . .74 General notes on tests . .75 Rating . .76 Classification . .77 Marking . .88 Protection against electric shock . .89 Starting . .810 Input and current .
30、 .811 Heating . .812 Leakage current . .813 Radio and television interference suppression . .914 Moisture resistance . .915 Insulation resistance and electric strength . .916 Endurance . .917 Abnormal operation . .918 Mechanical hazards . .919 Mechanical strength . .1120 Construction . .1121 Interna
31、l wiring . .1122 Components . .1123 Supply connection and external flexible cables and cords . .1124 Terminals for external conductors . .1125 Provision for earthing . .1126 Screws and connections . .1227 Creepage distances, clearances and distances through insulation . .1228 Resistance to heat, fir
32、e and tracking . .1229 Resistance to rusting . .1230 Tests by manufacturers . .1231 Instructions . .12This PDF Standard downloaded from Appendix A Thermal cut-outs and overload releasesAppendix B Electronic CircuitsAppendix C Construction of safety isolating transformers Appendix D Measurement of cr
33、eepage distances and clearances Appendix E Reference standardsAppendix F Attachments and accessoriesAppendix G Sequence of testsAppendix H TranslationsH1 Translations . .15H1.1 Markings . .15H1.2 Instructions . .16JULY 23, 2007CAN/CSA-C22.2 NO. 745-2-5UL 745-2-55PrefaceThis is the common CSA and UL
34、Standard for portable electric planers. It is the first edition of CSA Standard C22.2 No. 745-2-5 Safety of portable electric tools Part 2: Particular requirements for circular saws and circular knifes and the second edition of UL 745-2-5 , Safety of portable electric tools Part 2: Particular requir
35、ements for circular saws and circular knifes. It is written in SI (metric) units.This Standard was prepared by Canadian Standards Association and Underwriters Laboratories Inc. This common CSA and UL Standard is based on IEC Publication 745-2-5 (1983) Part 2: Particular requirements for Safety of po
36、rtable electric tools Part 2: Particular requirements for circular saws and circular knifes. Where Canadian and US deviations have necessitated the deletion of IEC Publication745-2-5 text, the IEC text has been retained but has been over-stricken to indicate it as nonmandatory. Text added to IEC Pub
37、lication 745-2-5 as mandatory has been underlined including, where feasible, Tables and Figures.Where a particular clause of the general requirements Standard is not mentioned in this Standard, the clause applies as far as is reasonable. Where this edition states addition, modification, or replaceme
38、nt, the relevant requirement, test specification, or explanatory matter in the general requirements Standard should be adapted accordingly.If the functions of a tool are covered by different particular Standards, the relevant particular requirements Standard is applied to each function separately, s
39、o far as is reasonable. If applicable, the influence of one function on the other is taken into account.This Standard was reviewed by the CSA Subcommittee on Portable Electric Tools of the Technical Committee on Consumer and Commercial Products under the jurisdiction of the Standards Steering Committee on the Canadian Electrical Code, Part II, and was formally approved by these Committe
