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 Revisions.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 SawsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WI

2、THOUT 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 Edition, Dated March 20

3、, 2012 Summary of Topics Adoption of the Fifth Edition of IEC 60745-2-5, Hand-Held Motor-Operated Electric Tools Safety Part 25: Particular Requirements for Circular Saws as the Fifth Edition of UL 60745-2-5. The adopted standard incorporates the IEC Fifth Edition published July 2010. Please note th

4、at the national difference document incorporates all of the U.S. national differences for UL 60745-2-5 including the new national differences itemized below. 1. Clause 8.1DV Added To Require Cautionary Markings Intended To Reduce The Risk Of Injury To Users During Operation Of A Circular Saw 2. Clau

5、se MDV Added To Specify That The Requirements In Annex M Of UL 60745-1 And this Part 2 Regarding Working Stands Do Not Apply The new requirements are substantially in accordance with Proposal(s) on this subject dated October 21, 2011. All rights reserved. No part of this publication may be reproduce

6、d, 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 expressed or implied, including but not limited to, the implied

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8、en 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 electronic versions of ULs Standards for Safety agree to defe

9、nd, 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 Standard on the purchasers computer system. The requirements i

10、n this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the preface. The prior text for requirements that have been revised and that have a future effective date are located after the

11、 Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. MARCH 20, 2012 UL 60745-2-5 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Eff

12、ective Dates References March 31, 2014 Entire Standard MARCH 20, 2012 UL 60745-2-5 tr2UL COPYRIGHTED MATERIAL 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) Under

13、writers Laboratories Inc. UL 60745-2-5 Fifth Edition Hand-Held Motor-Operated Electric Tools Safety Part 2-5: Particular Requirements for Circular Saws March 20, 2012 This national standard is based on publication IEC 60745-2-5, Fifth Edition (2010). ANSI/UL 60745-2-5-2012UL COPYRIGHTED MATERIAL NOT

14、 AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION 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 submit

15、ted to CSA or UL at anytime. Revisions to this standard 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-

16、1-55491-875-1 2012 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. CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appro

17、priate committee. To submit a proposal for change to CSA Standards, please send the following information to inquirescsa.ca and include Proposal for change in the subject line: Standard designation (number); relevant clause, table, and/or gure number; wording of the proposed change; and rationale fo

18、r the change. To purchase CSA Standards and related publications, visit CSAs Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2012 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard

19、 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. The most recent designation of ANSI/UL 60745-2-5 as an American National Standard (ANSI) occurred on March 20, 2012. ANSI appro

20、val 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 from the ANSI approval of IEC-based standards. Comments or proposals for revisions on any part of the Standard may be su

21、bmitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. To purchase UL Standards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPROD

22、UCTION OR DISTRIBUTION 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

23、.1 Safety instructions 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

24、 with riving 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 .

25、20 19 Mechanical 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

26、 and external 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 sim

27、ilar hazards .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 prov

28、ided with 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.

29、19.1.302 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 streng

30、th .63 Annex 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 PERMISSI

31、ON FROM UL 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,

32、fth edition. 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 (C

33、SA) and Underwriters 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 Tech

34、nical Committee 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)

35、. This standard 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 sta

36、ndard is stated 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

37、 standard 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 exam

38、ple because 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 i

39、n the CSA 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 a

40、nd Canada. 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 bas

41、ed on the 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 organiz

42、ations to 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

43、 product submittals 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 da

44、te is one 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

45、 are used 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 p

46、art of the 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 Electrotechnic

47、al Commission 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 requirement

48、s of this 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

49、International 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 as noted below. The difference type is noted on the rst line of the National Difference in the standard. The standard may no