UL 745-3-2007 UL Standard for Safety Portable Battery-Operated Tools (Second Edition)《蓄电池供电的便携工具》.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 745-3Portable Battery-OperatedToolsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER R

2、EPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUnderwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbrook, IL 60062-2096UL Standard for Safety for Portable Battery-Operated Tools, UL 745-3Second Edition, Dated October 8, 2007Summary of TopicsThis new Second edition of UL 745-3 was issued

3、to clarify the UL effective date statement shownon the Preface page and to make other administrative changes. The technical content of theFirst edition has reproduced verbatim in this edition; the text of the standard has not beenchanged.As noted in the Commitment for Amendments statement located on

4、 the back side of the titlepage, UL and CSA are committed to updating this IEC-based binational standard jointly.However, this Second edition dated October 8, 2007 will not be issued by CSA since itaddresses UL only administrative changes.The UL Foreword is no longer located within the UL Standard.

5、For information concerning the use andapplication of the requirements contained in this Standard, the current version of the UL Foreword islocated on ULStandardsInfoNet at: http:/ master for this Standard at ULs Northbrook Office is the official document insofar as it relates to aUL service and the

6、compliance of a product with respect to the requirements for that product and service,or if there are questions regarding the accuracy of this Standard.ULs Standards for Safety are copyrighted by UL. Neither a printed copy of a Standard, nor the distributiondiskette for a Standard-on-Diskette and th

7、e file for the Standard on the distribution diskette should bealtered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding thoseStandards shall remain the sole and exclusive property of UL.All rights reserved. No part of this publication may be reproduced, stored in

8、a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.Revisions of UL Standards for Safety are issued from time to time. A UL Standard for Safety is currentonly if it incorporates the most recently adopt

9、ed revisions.UL provides this Standard as is without warranty of any kind, either expressed or implied, including butnot limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar dama

10、ges,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or theinability to use this Standard, even if UL or an authorized UL representative has been advised of thepossibility of such damage. In no event shall ULs liability for any damage ever exceed

11、the price paid forthis Standard, regardless of the form of the claim.OCTOBER 8, 2007 UL 745-3 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL will attempt to answer support requests concerning electronic versions of its Standards. Howeve

12、r, thissupport service is offered on a reasonable efforts basis only, and UL may not be able to resolve everysupport request. UL supports the electronic versions of its Standards only if they are used under theconditions and operating systems for which it is intended. ULs support policies may change

13、 fromtime-to-time without notification.UL reserves the right to change the format, presentation, file types and formats, delivery methods andformats, and the like of both its printed and electronic Standards without prior notice.Purchasers of the electronic versions of ULs Standards for Safety agree

14、 to defend, indemnify, and holdUL harmless from and against any loss, expense, liability, damage, claim, or judgement (includingreasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing anelectronic Standard on the purchasers computer system.If a single-u

15、ser version electronic Standard was purchased, one copy of this Standard may be stored onthe hard disk of a single personal computer, or on a single LAN file-server or the permanent storagedevice of a multiple-user computer in such a manner that this Standard may only be accessed by one userat a tim

16、e and for which there is no possibility of multiple concurrent access.If a multiple-user version electronic Standard was purchased, one copy of the Standard may be stored ona single LAN file-server, or on the permanent storage device of a multiple-user computer, or on an Intranetserver. The number o

17、f concurrent users shall not exceed the number of users authorized.Electronic Standards are intended for on-line use, such as for viewing the requirements of a Standard,conducting a word search, and the like. Only one copy of the Standard may be printed from eachsingle-user version of an electronic

18、Standard. Only one copy of the Standard may be printed for eachauthorized user of a multiple-user version of an electronic Standard. Because of differences in thecomputer/software/printer setup used by UL and those of electronic Standards purchasers, the printedcopy obtained by a purchaser may not l

19、ook exactly like the on-line screen view or the printed Standard.An employee of an organization purchasing a UL Standard can make a copy of the page or pages beingviewed for their own fair and/or practical internal use.The requirements in this Standard are now in effect, except for those paragraphs,

20、 sections, tables, figures,and/or other elements of the Standard having future effective dates as indicated in the preface. The priortext for requirements that have been revised and that have a future effective date are located after theStandard, and are preceded by a SUPERSEDED REQUIREMENTS notice.

21、New product submittals made prior to a specified future effective date will be judged under all of therequirements in this Standard including those requirements with a specified future effective date, unlessthe applicant specifically requests that the product be judged under the current requirements

22、. However, ifthe applicant elects this option, it should be noted that compliance with all the requirements in thisStandard will be required as a condition of continued Listing, Recognized and Follow-Up Services afterthe effective date, and understanding of this should be signified in writing.Copyri

23、ght 2007 Underwriters Laboratories Inc.This Standard consists of pages dated as shown in the following checklist:Page Date1-42 October 8, 2007OCTOBER 8, 2007 UL 745-3tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCanadian Standards Associa

24、tionCAN/CSA-C22.2 No. 745-3First EditionUnderwriters Laboratories Inc.UL 745-3Second EditionPortable Battery-Operated ToolsOctober 8, 2007UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCommitment for AmendmentsThis Standard is issued jointly

25、by Canadian Standards Association and Underwriters LaboratoriesIncorporated. Amendments to this Standard will be made only after processing according to theStandards writing procedures by both Canadian Standards Association and Underwriters LaboratoriesIncorporated.ISBN 0317-5669 1995Canadian Standa

26、rds AssociationAll rights reserved. No part of this publication may be reproduced in any form whatsoever without theprior permission of the publisher.Copyright 1995, 2007 Underwriters Laboratories Inc.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION F

27、ROM ULCONTENTSPreface .51 Scope .62 Definitions 63 General requirement 74 General notes on tests 75 Rating .86 Reserved 87 Marking 88 Protection against electric shock .129 Reserved .1210 Reserved 1211 Heating 1212 Reserved 1313 Reserved 1314 Reserved 1315 Electric strength 1316 Reserved 1317 Abnorm

28、al operation .1318 Mechanical hazards .1519 Mechanical strength .1520 Construction .1721 Internal wiring 1822 Components .1823 Supply connection and external flexible cables and cords 1924 Reserved 1925 Reserved 1926 Reserved 1927 Clearances .1928 Resistance to heat, fire and tracking 2029 Resistanc

29、e to rusting 2330 Reserved 2331 Instructions 2331.3 GENERAL SAFETY RULES - FOR ALL BATTERY OPERATED TOOLS .25OCTOBER 8, 2007 CAN/CSA-C22.2 NO. 745-3 UL 745-3 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAppendix A Thermal cut-outs and over

30、load releasesAppendix B ReservedAppendix C ReservedAppendix D ReservedAppendix E Reference standardsAppendix F Attachments and accessoriesF1 Scope .32F2 Definitions .33F3 General requirements .33F4 General notes on test .33F7 Marking .33F19 Mechanical strength .35F20 Construction 35F31 Instructions

31、.36Appendix G Sequence of testsAppendix H TranslationsH1 Translations .38H1.1 Markings 38FiguresOCTOBER 8, 2007CAN/CSA-C22.2 NO. 745-3 UL 745-34UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis is the common CSA and UL Standard for p

32、ortable battery-operated tools. It is the first edition of CSAStandard C22.2 No. 745-3 Safety of portable battery-operated tools Part 3: General requirements and thesecond edition of UL 745-3, Safety of portable battery-operated tools Part 3: General requirements. It iswritten in SI (metric) units.T

33、his Standard was prepared by Canadian Standards Association and Underwriters Laboratories Inc. andis based on IEC Publication 745-1(1982) Safety of hand-held motor-operated electric tools Part 1: Generalrequirements. Since no corresponding IEC document exists for battery-operated tools, these requir

34、ementsare new and do not show deviations to IEC text.This Standard contains general requirements and is intended to be used in conjunction with theappropriate particular requirements Standard (if available), which contains Clauses to supplement ormodify the corresponding Clauses in the general requi

35、rements Standard, to provide the relevantrequirements for each type of product.If the functions of a tool are covered by different particular Standards, the relevant particular requirementsStandard is applied to each function separately, so far as is reasonable. If applicable, the influence of onefu

36、nction on the other is taken into account.This Standard was reviewed by the CSA Subcommittee on Portable Electric Tools of the TechnicalCommittee on Consumer and Commercial Products under the jurisdiction of the Standards SteeringCommittee on the Canadian Electrical Code, Part II, and was formally a

37、pproved by these Committees.This Standard was processed and reviewed in accordance with the method of development, revision andimplementation of UL Standards for safety.This Standard has been approved by the Standards Council of Canada as a National Standard of Canadaand has been approved by the Ame

38、rican National Standards Institute (ANSI) as an American NationalStandard.March 23, 1995UL Effective DateThe effective date for UL 745-3 is the date of publication.CSA Effective DateThe effective date for CSA will be announced through a CSA Certification Notice.Note: Although the intended primary ap

39、plication of this Standard is stated in its Scope, it is important to note that itremains the responsibility of the users of the Standard to judge its suitability for their particular purpose.OCTOBER 8, 2007 CAN/CSA-C22.2 NO. 745-3 UL 745-3 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODU

40、CTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL1 Scope1.1 This standard applies to portable battery operated tools rated 30 volts or less intended for indoor oroutdoor use, in non-hazardous locations, in accordance with the Canadian Electric Code, Part 1 and theNational Electrical Code (NFPA70).This

41、 Part 3 is to be used in conjunction with the appropriate Part 4, which contains clauses whichsupplement or modify the corresponding clauses in Part 3 to provide the complete requirement for eachsort of tool.It also applies, as far as is reasonable, to tools not mentioned in Part 4 and to those desi

42、gned on basicallynew principles.Battery chargers are not within the scope of this standard.This Standard applies to, but the scope is not limited to: portable battery operated tools, such as drills,screwdrivers, nut runners, hammers, impact wrenches, saws, sanders, polishers, buffers, shears,nibbler

43、s, grinders, and drain cleaners.This standard applies to accessories and mechanical attachments for use with portable battery operated tools. These requirementsare outlined in Appendix F.These requirements do not cover gardening appliances, garage equipment, soldering irons or guns,painting equipmen

44、t, floor-finishing machines, or other equipment covered by individual requirements.2 Definitions2.1 Where in this standard the expressions With the aid of a tool,Without the aid of a tool, andrequires the use of a tool occur, the word tool means a screwdriver, a coin or any other object whichmay be

45、used to operate a screw or similar fixing means.2.2 The following definitions apply for the purpose of this standard:1. Rated voltage denotes the voltage assigned to the tool by the manufacturer.2. Rated no-load speed denotes the no-load speed at rated voltage.3.Detachable flexible cable or cord den

46、otes a flexible cable or cord intended to be connected to thetool and/or separable battery by means of a suitable appliance coupler.4. Non-detachable part denotes a part which can only be removed with the aid of a tool.5. Detachable part denotes a part which can be removed without the aid of a tool.

47、6. Thermal cut-out denotes a device which, during abnormal operation, limits the temperature of a tool,or of parts of it, by automatically opening the circuit or by reducing the current, and which is soconstructed that its setting cannot be altered by the user.7. Non-self-resetting thermal cut-out d

48、enotes a thermal cut-out which requires resetting by hand, orreplacement of a part, in order to restore the current.8. Clearance denotes the shortest distance between two conductive parts, or between a conductivepart and the bounding surface of the tool, measured through air.OCTOBER 8, 2007CAN/CSA-C

49、22.2 NO. 745-3 UL 745-36UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULThe bounding surface of the tool is the outer surface of the enclosure, considered as though metal foil are pressed into contactwith accessible surfaces of insulating material.9. Accessible part or accessible surface denotes a part or surface which can be touched by meansof the standard test finger shown in Figure 1. For accessible metal parts, it includes any o