ANSI UL 60745-2-5-2012 UL Standard for Safety Hand-Held Motor-Operated Electric Tools C Safety C Part 2-5 Particular Requirements for Circular Saws (Fifth Edition Reprint with Revi.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60745-2-5 Hand-Held Motor-Operated Electric Tools Safety Part 2-5: Particular Requirements for Circular Saws STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO

2、N OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Hand-Held Motor-Operated Electric Tools Safety Part 2-5: Particular Requirements for Circular Saws, UL 60745-2-5 Fifth Edi

3、tion, Dated March 20, 2012 Summary of Topics This revision of ANSI/UL 60745-2-5 is being issued to reaffirm approval as an American National Standard. No changes in requirements are involved. As noted in the Commitment for Amendments statement located on the back side of the title page, UL and CSA a

4、re committed to updating this harmonized standard jointly. However, the revision pages dated May 24, 2017 will not be jointly issued by UL and CSA as these revision pages only address UL ANSI approval dates. Text that has been changed in any manner or impacted by ULs electronic publishing system is

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9、uced while purchaser is storing an electronic Standard on the purchasers computer system. MAY 24, 2017 UL 60745-2-5 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 24, 2017 UL 60745-2-5 tr2 No Text on This PageUL COPYRIGHTED MATERIAL

10、NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Canadian Standards Association CAN/CSA-C22.2 No. 60745-2-5-12 Fourth Edition (IEC 60745-2-5:2010 MOD) Underwriters Laboratories Inc. UL 60745-2-5 Fifth Edition Hand-Held Motor-Operated Electric Tools Safety Part 2-5:

11、Particular Requirements for Circular Saws March 20, 2012 (Title Page Reprinted: May 24, 2017) This national standard is based on publication IEC 60745-2-5, Fifth Edition (2010). ANSI/UL 60745-2-5-2012 (R2017) Approved byUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION

12、WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Canadian Standards Association (CSA) and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to CSA or UL at anytime. Revisions to this standa

13、rd will be made only after processing according to the standards development procedures of CSA and UL. CSA and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. ISBN 978-1-55491-875-1 2012 CSA Group All rights reserved. No

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17、and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. The most recent designation of ANSI/UL 60745-2-5 as a Reaffirmed American National Standard (ANS) occurred on May 24, 2017. ANSI approval for a standard does not include the Cover

18、 Page, Transmittal Pages, Title Page (front and back), or the Preface. The National Difference Page and IEC Foreword are also excluded 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 b

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20、IBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface . 5 NATIONAL DIFFERENCES . 7 FOREWORD 8 1 Scope 11 2 Normative references 11 3 Terms and denitions 11 4 General requirements 12 5 General conditions for the tests .12 6 Void 12 7 Classication 12 8 Marking and instructions 12 8.12.1.101.1 Safety ins

21、tructions for all saws 13 8.12.1.101.2 Further safety instructions for all saws .14 8.12.1.101.3 Safety instructions for saws shown in Figures 101, 102, and 103 .15 8.12.1.101.4 Safety instructions for saws shown in Figure 104 .15 8.12.1.101.5 Additional safety instructions for all saws with riving

22、knife 16 9 Protection against access to live parts .17 10 Starting 17 11 Input and current 17 12 Heating 17 13 Leakage current .17 14 Moisture resistance 17 15 Electric strength .17 16 Overload protection of transformers and associated circuits 17 17 Endurance 17 18 Abnormal operation 20 19 Mechanic

23、al hazards .20 19.101 Guarding above the base plate 21 19.102 Guarding below the base plate .24 19.103 Base plate .25 19.104 Flanges 26 19.105 Handles .26 19.106 Blade changing .26 20 Mechanical strength .26 21 Construction 27 22 Internal wiring .27 23 Components 27 24 Supply connection and external

24、 exible cords .28 25 Terminals for external conductors .28 26 Provision for earthing 28 27 Screws and connections .28 28 Creepage distances, clearances and distances through insulation .28 29 Resistance to heat, re and tracking .28 30 Resistance to rusting 28 31 Radiation, toxicity and similar hazar

25、ds .28 MARCH 20, 2012 CAN/CSA-C22.2 NO. 60745-2-5-12 UL 60745-2-5 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annexes Annex K (normative) Battery tools and battery packs Annex L (normative) Battery tools and battery packs provided with

26、mains connection or non-isolated sources Annex M (normative) Safety of working stands for operation with hand-held motor-operated electric tools M.1 Scope 45 M.3 Terms and denitions 45 M.8 Marking and instructions .45 M.19 Mechanical hazards 47 M.19.1.301 Guarding below the table top .47 M.19.1.302

27、Guarding above the table top .47 M.19.1.303 Riving knife 49 M.19.1.304 Table top 50 M.19.1.305 Workpiece guiding 51 M.20 Mechanical strength 53 M.21 Construction 54 Annex AA (normative) Additional requirements for saws with a riving knife AA.19 Mechanical hazards .62 AA.20 Mechanical strength 63 Ann

28、ex BB (normative) Additional requirements for lower guards for saws without a riving knife BB.20 Mechanical strength .66 Bibliography MARCH 20, 2012 CAN/CSA-C22.2 NO. 60745-2-5-12 UL 60745-2-5 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL

29、 Preface This is the harmonized CSA and UL standard for Hand-Held Motor-Operated Electric Tools Safety Part 2-5: Particular Requirements for Circular Saws. It is the fourth edition of CAN/CSA-C22.2 No. 60745-2-5 and the fth edition of UL 60745-2-5. This standard is based on IEC 60745-2-5, fth editio

30、n. This standard (CAN/CSA-C22.2 No. 60745-2-5, fourth edition and UL 60745-2-5, fth edition) supersedes the third edition of CAN/CSA-C22.2 No. 60745-2-5 and the fourth edition of UL 60745-2-5, published in 2007. This harmonized standard was prepared by the Canadian Standards Association (CSA) and Un

31、derwriters Laboratories Inc. (UL). This standard is considered suitable for use for conformity assessment within the stated scope of the standard. This standard was reviewed by the CSA Subcommittee on Safety of Hand-Held Motor-Operated Electric Tools, under the jurisdiction of the CSA Technical Comm

32、ittee on Consumer and Commercial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been approved as a National Standard of Canada by the Standards Council of Canada (SCC). This sta

33、ndard has been approved by the American National Standards Institute (ANSI) as an American National Standard. Where reference is made to a specic number of samples to be tested, the specied number is considered a minimum quantity. Note: Although the intended primary application of this standard is s

34、tated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of Harmonization This standard adopts the IEC text with national differences. This standard is published as an equivalent standard

35、for CSA and UL. An equivalent standard is a standard that is substantially the same in technical content, except as follows: Technical national differences are allowed for codes and governmental regulations as well as those recognized as being in accordance with NAFTA Article 905, for example becaus

36、e of fundamental climatic, geographical, technological, or infrastructural factors, scientic justication, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes. All national differences from the IEC text are included in the CSA

37、and UL versions of the standard. While the technical content is the same in each organizations version, the format and presentation may differ. Reasons for Differences from IEC Differences from the IEC are being added in order to address regulatory and safety situations present in the US and Canada.

38、 MARCH 20, 2012 CAN/CSA-C22.2 NO. 60745-2-5-12 UL 60745-2-5 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on the

39、literal text to determine compliance with the standard in accordance with the procedural rules of the standards development organization. If more than one literal interpretation has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations to

40、more accurately reect the intent. CSA Effective Date The effective date for CSA International will be announced through CSA Informs or a CSA certication notice. UL Effective Date The effective date for UL 60745-2-5, fth edition, is March 31, 2014. Between the present and March 31, 2014 new product s

41、ubmittals to UL must be evaluated under all requirements in this Standard or, if requested in writing, evaluated under presently effective requirements only. As of March 31, 2014, all products Listed or Recognized by UL shall comply with the requirements in this standard. A UL effective date is one

42、established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard. IEC Copyright For UL, the text, gures and tables of IEC publication IEC 60745-2-5, Hand-Held Motor-Operated Electrical Tools Safety Part 25: Particular Requirements for circular Saws copyright 2010 are used

43、in this Standard with the consent of the IEC and the American National Standards Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. ANSI should be contacted regarding the reproduction of any portion of the IEC material. The IEC Foreword is not a part of the

44、 requirements of this Standard but is included for information purposes only. Copies of IEC Publication IEC 60745-2-5 may be purchased from ANSI, 25 West 43rd Street, 4th Floor, New York, New York, 10036, (212) 642- 4900. For CSA, the text, gures, and tables of International Electrotechnical Commiss

45、ion Publication IEC 60745-2-5, Hand-Held Motor-Operated Electrical Tools Safety Part 25: Particular Requirements for Circular Saws, copyright 2010, are used in this standard with the consent of the International Electrotechnical Commission. The IEC Foreword is not a part of the requirements of this

46、standard but is included for information purposes only. MARCH 20, 2012 CAN/CSA-C22.2 NO. 60745-2-5-12 UL 60745-2-5 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NATIONAL DIFFERENCES GENERAL National Differences from the text of Internatio

47、nal Electrotechnical Commission (IEC) Publication IEC 60745-2-5, Hand-Held Motor-Operated Electrical Tools Safety Part 2-5: Particular Requirements for Circular Saws, copyright 2010, are indicated by notations (differences) and are presented in bold text. There are ve types of National Differences a

48、s noted below. The difference type is noted on the rst line of the National Difference in the standard. The standard may not include all types of these National Differences. DR These are National Differences based on the national regulatory requirements. D1 These are National Differences which are b

49、ased on basic safety principles and requirements, elimination of which would compromise safety for consumers and users of products. D2 These are National Differences from IEC requirements based on existing safety practices. These requirements reect national safety practices, where empirical substantiation (for the IEC or national requirement) is not available or the text has not been included in the IEC standard. DC These are National Differe