1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22166-9 SANS 60745-2-2:2008 Edition 2.1 IEC 60745-2-2:2008 Edition 2.1 SOUTH AFRICAN NATIONAL STANDARD Hand-held motor-operated electric t
4、ools Safety Part 2-2: Particular requirements for screwdrivers and impact wrenches This national standard is the identical implementation of IEC 60745-2-2:2008 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can only be used in conjunction with SANS 60745
5、-1. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 60745-2-2:2008 Edition 2.1 I
6、EC 60745-2-2:2008 Edition 2.1 Table of changes Change No. Date Scope IEC amdt 1 2008 Amended to include a marking requirement for the gripping surfaces of tools, to exclude impact wrenches from the mechanical strength and construction requirements, to add a requirement for overload protection of com
7、ponents, and to do editorial corrections. National foreword This South African standard was approved by National Committee SABS TC 72, Safety of electrical appliances and electronic equipment, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agr
8、eement. This SANS document was published in December 2008. This SANS document supersedes SANS 60745-2-2:2003 (edition 2). This standard may only be used and printed by approved subscription and freemailing clients of the SABS. IEC 60745-2-2 Edition 2.1 2008-07 INTERNATIONAL STANDARD NORME INTERNATIO
9、NALE Hand-held motor-operated electric tools Safety Part 2-2: Particular requirements for screwdrivers and impact wrenches Outils lectroportatifs moteur Scurit Partie 2-2: Rgles particulires pour les visseuses et les cls chocs INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INT
10、ERNATIONALE CB ICS 25.140.20; 25.140.30 PRICE CODE CODE PRIX ISBN 2-8318-9866-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale SANS 60745-2-2:2008This standard may only be used and printed by approved subscription a
11、nd freemailing clients of the SABS. 2 60745-2-2 IEC:2003+A1:2008 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SAFETY Part 2-2: Particular requirements for screwdrivers and impact wrenches FOREWORD 1) The International Electrotechnical Commission (IEC) is a worl
12、dwide 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 fields. To this end and in addition to other a
13、ctivities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subj
14、ect dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions de
15、termined 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 interested IEC National Com
16、mittees. 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 whi
17、ch they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publica
18、tion and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure th
19、at they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any na
20、ture whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenc
21、ed publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. Internati
22、onal Standard IEC 60745-2-2 has been prepared by subcommittee 61F: Safety of hand-held motor-operated electric tools, of IEC technical committee 61: Safety of household and similar electrical appliances. Main changes include Clause 12: Heating, introducing slightly different test cycles, Clause 17:
23、Endurance, introducing both a no-load test and a practical test, and Clause 14: Supply connection and external flexible cords, in respect to minimum cable specifications. Subclause 2.2.23 has been removed, as the definitions of “normal load” are now generally covered by Part 1. This consolidated ver
24、sion of IEC 60745-2-2 consists of the second edition (2003) documents 61F/461/FDIS and 61F/485/RVD and its amendment 1 (2008) documents 61F/732/FDIS and 61F/752/RVD. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. SANS 60
25、745-2-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60745-2-2 IEC:2003+A1:2008 3 It bears the edition number 2.1. A vertical line in the margin shows where the base publication has been modified by amendment 1. The French version of thi
26、s standard has not been voted upon. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. This Part 2-2 is to be used in conjunction with the third edition of IEC 60745-1: Safety of hand-held motor-operated electric tools Part 1: General requirements. When this standar
27、d states “addition”, “modification” or “replacement”, the relevant text in Part 1 is to be adapted accordingly. With amendment 1, this Part 2 is established on the basis of the fourth edition (2006) of IEC 60745-1, Hand-held motor-operated electric tools Safety Part 1: General requirements. Main cha
28、nges include editorial modifications to match with the fourth edition of IEC 60745-1 and the addition of a new safety warning to Clause 8: Marking and instructions. NOTE In this standard, the following print types are used: requirements: in roman type; test specifications: in italic type; notes: in
29、smaller roman type. Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101; additional annexes are lettered AA, BB, etc. IEC 60745 consists of the following parts, under the general title Hand-held motor-operated electric tools Safety: Part 1: General r
30、equirements Part 2-1: Particular requirements for drills and impact drills Part 2-2: Particular requirements for screwdrivers and impact wrenches Part 2-3: Particular requirements for grinders, polishers and disk-type sanders Part 2-4: Particular requirements for sanders and polishers other than dis
31、k type Part 2-5: Particular requirements for circular saws and circular knives Part 2-6: Particular requirements for hammers Part 2-7: Particular requirements for spray guns for non-flammable liquids Part 2-8: Particular requirements for shears and nibblers Part 2-9: Particular requirements for tapp
32、ers Part 2-11: Particular requirements for reciprocating saws (jig and sabre saws) Part 2-12: Particular requirements for concrete vibrators Part 2-13: Particular requirements for chain saws Part 2-14: Particular requirements for planers Part 2-15: Particular requirements for hedge trimmers Part 2-1
33、6: Particular requirements for tackers Part 2-17: Particular requirements for routers and trimmers Part 2-18: Particular requirements for strapping tools Part 2-19: Particular requirements for jointers Part 2-20: Particular requirements for band saws Part 2-21: Particular requirements for drain clea
34、ners SANS 60745-2-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 4 60745-2-2 IEC:2003+A1:2008 The committee has decided that the contents of the base publication and its amendments will remain unchanged until the maintenance result date
35、 indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. SANS 60745-2-2:2008This standard may only be used and printed by approved subscriptio
36、n and freemailing clients of the SABS.60745-2-2 IEC:2003+A1:2008 5 HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SAFETY Part 2-2: Particular requirements for screwdrivers and impact wrenches 1 Scope This clause of Part 1 is applicable, except as follows: Addition: This standard applies to screwdrivers and
37、 impact wrenches. 2 Normative references This clause of Part 1 is applicable. 3 Terms and definitions This clause of Part 1 is applicable, except as follows: Additional definitions: 3.101 screwdriver tool intended for tightening and loosening screws, nuts, and the like and not equipped with an impac
38、t mechanism but which may have a device for depth setting or setting the torque or means for switching off the rotation 3.102 impact wrench tool intended for tightening and loosening screws, nuts, and the like and equipped with a rotary impact mechanism. Some impact wrenches are equipped with a mean
39、s for depth setting and may have a means for setting the torque or switching off the rotation 4 General requirements This clause of Part 1 is applicable. 5 General conditions for the tests This clause of Part 1 is applicable. 6 Void 7 Classification This clause of Part 1 is applicable. SANS 60745-2-
40、2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 6 60745-2-2 IEC:2003+A1:2008 8 Marking and instructions This clause of Part 1 is applicable, except as follows: 8.12.1.1 Addition Hold power tool by insulated gripping surfaces, when perfor
41、ming an operation where the fastener may contact hidden wiring or its own cord. Fasteners contacting a “live“ wire may make exposed metal parts of the power tool “live“ and could give the operator an electric shock. 9 Protection against access to live parts This clause of Part 1 is applicable. 10 St
42、arting This clause of Part 1 is applicable. 11 Input and current This clause of Part 1 is applicable. 12 Heating This clause of Part 1 is applicable, except as follows: 12.4 Replacement: The tool is operated intermittently for 30 cycles or until temperatures stabilise, whichever is achieved first, e
43、ach cycle comprising a period of continuous operation of 30 s and a rest period of 90 s with the tool switched off, the tool loaded during the periods of operation by means of a brake adjusted so as to attain rated input or rated current. The temperature rises are measured at the end of the “on” per
44、iod. At the manufacturers option the tool may be operated continuously until thermal stabilisation. The impact mechanism may be disabled during the test to prevent damage to the brake. 13 Leakage current This clause of Part 1 is applicable. 14 Moisture resistance This clause of Part 1 is applicable.
45、 15 Electric strength This clause of Part 1 is applicable. SANS 60745-2-2:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60745-2-2 IEC:2003+A1:2008 7 16 Overload protection of transformers and associated circuits This clause of Part 1 is a
46、pplicable. 17 Endurance This clause of Part 1 is applicable, except as follows: 17.2 Replacement: For screwdrivers, the test of Part 1 is applicable. For impact wrenches, replace the test of Part 1 as follows: Impact wrenches are operated intermittently for 12 h at a supply voltage equal to 1,1 time
47、s rated voltage and then for 12 h at a supply voltage equal to 0,9 times rated voltage. The tool may be switched on and off by means of a switch other than that incorporated in the tool. Each cycle of operation comprises an “on” period of 100 s at no load and a resting period of 20 s with the tool s
48、witched “off”, the “off” periods being included in the specified operating time. During the tests above, the tool is placed in three different positions, the operating time, at each test voltage, being approximately 4 h for each position. After this, the impact wrenches are operated intermittently f
49、or 12 h at a supply voltage equal to 1,1 times rated voltage, then for 12 h at a supply voltage equal to 0,9 times rated voltage. Each cycle of operation comprises a tool impacting for a period of 1 s and a resting period of 9 s with the tool switched “off”, the “off” periods being included in the specified operating time. During this test, replacement of the carbon brushes is allowed, and the tool is oiled and greased as in normal use. If the impact mechanism fails mechanically
