1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60745-2-4 Hand-Held Motor-Operated Electric Tools Safety Part 2-4: Particular Requirements for Sanders and Polishers Other Than Disk TypeUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
2、PRODUCTION 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 2-4: Particular Requirements for Sanders and Polishers Other
3、Than Disk Type, UL 60745-2-4 Second Edition, Dated March 26, 2004 Summary of Topics The revisions dated March 13, 2014 are being issued to reaffirm approval of UL 60745-2-4 as an American National Standard. No changes in requirements are involved. As noted in the Commitment for Amendments statement
4、located on the back side of the title page, UL and CSA are committed to updating this harmonized standard jointly. However, the revision pages dated March 13, 2014 will not be jointly issued by UL and CSA as these revision pages address UL ANSI approval dates only. Text that has been changed in any
5、manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. 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
6、 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 warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indi
7、rect or similar damages, including loss of prots, lost savings, loss of data, or any other damages 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 an
8、y 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 defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable at
9、torneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having
10、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 Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MARCH 13, 2014 UL 60745-2-4 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED
11、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 13, 2014 UL 60745-2-4 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Canadian Standards Association CAN/CSA-C22.2 No. 60745-2-4-04 Second Edi
12、tion (IEC 60745-2-4:2002, MOD) Underwriters Laboratories Inc. UL 60745-2-4 Second Edition Hand-Held Motor-Operated Electric Tools Safety Part 2-4: Particular Requirements for Sanders and Polishers Other Than Disk Type March 26, 2004 (Title Page Reprinted: March 13, 2014) This national standard is ba
13、sed on publication IEC 60745-2-4, Second Edition (2003). This amendment is an adoption of IEC Amendment 1(2008) to publication IEC 60745-2-4, Second Edition (2005). ANSI/UL 60745-2-4-2009 (R2014) Approved byUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMI
14、SSION 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 any time. Revisions to this standard will be m
15、ade 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 1-55397-460-3 2004 CSA Group All rights reserved. No part of this pub
16、lication may be reproduced in any form whatsoever without the prior permission of the publisher. Copyright 2014 Underwriters Laboratories Inc. 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 Proposal Request in U
17、Ls On-Line Collaborative Standards Development System (CSDS) at http:/. The most recent designation of ANSI/UL 60745-2-4 as a Reaffirmed American National Standard (ANS) occurred on March 13, 2014. The ANSI approval for this standard does not include the Cover Page, Transmittal Pages, Title Page, Pr
18、eface Page, National Difference Page or IEC Foreword. 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 Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. To purchase UL St
19、andards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .5 FOREWORD . 10 1 Scope 13 2 Normative references .13 3 Terms and Denitions 13 4 General requirements 13
20、5 General conditions for the tests 13 6 Void 14 7 Classication 14 8 Marking and instructions 14 9 Protection against access to live parts 14 10 Starting 14 11 Input and current .14 12 Heating 14 13 Leakage current 14 14 Moisture resistance .14 15 Electric strength 14 16 Overload protection of transf
21、ormers and associated circuits 15 17 Endurance .15 18 Abnormal operation .15 19 Mechanical hazards .15 20 Mechanical strength .15 21 Construction .15 22 Internal wiring 15 23 Components .15 24 Supply connection and external exible cords 16 25 Terminals for external conductors .16 26 Provision for ea
22、rthing 16 27 Screws and connections .16 28 Creepage distances, clearances and distances through insulation 16 29 Resistance to heat, re and tracking 16 30 Resistance to rusting 16 31 Radiation, toxicity and similar hazards .16 Annexes Annex K (normative) Battery Tool and Battery Packs Annex L (norma
23、tive) Battery Tools and Battery Packs Provided with Mains Connection or Non-Isolated Sources Bibliography JANUARY 23, 2009 CAN/CSA-C22.2 NO. 60745-2-4-04 UL 60745-2-4 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 23, 2009 CAN/CSA-
24、C22.2 NO. 60745-2-4-04 UL 60745-2-4 4 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the common CSA and UL standard for hand-held motor-operated electric tools. It is the second edition of CAN/CSA-C22.2 N
25、o. 60745-2-4 and the second edition of UL 60745-2-4. This standard is based on IEC 60745-2-4, second edition. The rst edition of this standard was designated CAN/CSA-C22.2 No. 745-2-4/UL 745-2-4. This Standard CAN/CSA-C22.2 No. 60745-2-4/UL 60745-2-4, second edition, supersedes: a) the rst edition C
26、AN/CSA-C22.2 No. 745-2-4/UL 745-2-4 published in 1995; and b) CAN/CSA-C22.2 No. 745-4-4/UL 745-4-4, (requirements for battery tools and battery packs are now incorporated into the requirements of CAN/CSA-C22.2 No. 60745-2-4, second edition, and UL 60745-2-4, second edition). The standard number has
27、been aligned to correspond with the equivalent IEC 60745-2-4 standard. This common standard was prepared by the Canadian Standards Association (CSA) and Underwriters Laboratories Inc. (UL). This standard was reviewed by the CSA Subcommittee on Portable Electric Tools, under the jurisdiction of the C
28、SA Technical 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 Canad
29、a and has been approved by the American National Standards Institute (ANSI) as an American National Standard. Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its
30、suitability for their particular purpose. A UL standard is current only if it incorporates the most recently adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. Where reference is made to a specic number of samples to be tes
31、ted, the specied number shall be considered a minimum quantity. Level of harmonization This standard adopts the IEC text with national differences. This standard is published as an equivalent standard for CSA and UL. An equivalent standard is a standard that is substantially the same in technical co
32、ntent, 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 because of fundamental climatic, geographical, technological, or infrastructural factors, scientic justic
33、ation, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes. MARCH 26, 2004 CAN/CSA-C22.2 NO. 60745-2-4-04 UL 60745-2-4 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
34、 Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based 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 inte
35、rpretation has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations 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 eff
36、ective date The effective date for UL 60745-2-4, second edition, is October 31, 2012. Between the present and October 31, 2012, new product submittals to UL must be evaluated under all requirements in this Standard or, if requested in writing, evaluated under presently effective requirements only. T
37、he presently effective requirements are contained in the rst edition of UL 745-2-3. As of October 31, 2012, all products Listed or Recognized by UL shall comply with the requirements in this standard. A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANS
38、I approved standard. General The previous version of CAN CSA C22.2 No. 60745-2-4-04/UL 60745-2-4 included a national difference to IEC Clause 8.12.1. The national difference was deleted in this version of CAN CSA C22.2 No. 60745-2-4-04/UL 60745-2-4. There are ve types of National Differences as note
39、d 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. National Differences from the text of the International Electrotechnical Commission (IEC) publication 60745-2-4 (Hand-Held Motor-Ope
40、rated Electric Tools Safety Part 2-4: Particular Requirements for Sanders and Polishers Other Than Disk Type) are indicated by the following notation: DR These are National Differences based on the national regulatory requirements. D1 These are National Differences which are based on basic safety pr
41、inciples 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
42、national requirement) is not available or the text has not been included in the IEC standard. DC These are National Differences based on the component standards and will not be deleted until a particular component standard is harmonized with the IEC component standard. JANUARY 23, 2009 CAN/CSA-C22.2
43、 NO. 60745-2-4-04 UL 60745-2-4 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DE These are National Differences based on editorial comments or corrections. JANUARY 23, 2009 CAN/CSA-C22.2 NO. 60745-2-4-04 UL 60745-2-4 9UL COPYRIGHTED MATERI
44、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTERNATIONAL ELECTROTECHNICAL COMMISSION HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SAFETY PART 2-4: PARTICULAR REQUIREMENTS FOR SANDERS AND POLISHERS OTHER THAN DISK TYPE FOREWORD 1) The International Electrotechnic
45、al Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic elds. To this end
46、 and in addition to other activities, IEC publishes International Standards, Technical Specications, Technical Reports, Publicly Available Specications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee
47、 interested in the subject dealt with may participate in this preparatory work. International, governmental and nongovernmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordan
48、ce with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all intere
49、sted IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international
