IEC 60745-2-22-2011 Hand-held motor-operated electric tools - Safety - Part 2-22 Particular requirements for cut-off machines《手持式电动工具.安全性.第2-22部分 切割机的详细要求》.pdf

1、 IEC 60745-2-22 Edition 1.0 2011-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Hand-held motor-operated electric tools Safety Part 2-22: Particular requirements for cut-off machines Outils lectroportatifs moteur Scurit Partie 2-22: Rgles particulires pour les trononneuses disques IEC 60745-2-22:201

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16、ients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60745-2-22 Edition 1.0 2011-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Hand-held motor-operated electric tools Safety Part 2-22: Particular requirements for cut-off machines Outils lectroportatifs moteur Sc

17、urit Partie 2-22: Rgles particulires pour les trononneuses disques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE T ICS 25.140.20 PRICE CODE CODE PRIX ISBN 978-2-88912-394-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la

18、 Commission Electrotechnique Internationale 2 60745-2-22 IEC:2011 CONTENTS FOREWORD . 4 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 General requirements . 7 5 General conditions for the tests 8 6 Void 8 7 Classification 8 8 Marking and instructions . 8 9 Protection against a

19、ccess to live parts 11 10 Starting 11 11 Input and current 11 12 Heating 11 13 Leakage current . 12 14 Moisture resistance 12 15 Electric strength . 12 16 Overload protection of transformers and associated circuits . 12 17 Endurance 12 18 Abnormal operation 12 19 Mechanical hazards 12 20 Mechanical

20、strength . 16 21 Construction . 18 22 Internal wiring . 18 23 Components . 19 24 Supply connection and external flexible cords 19 25 Terminals for external conductors . 19 26 Provision for earthing . 19 27 Screws and connections . 19 28 Creepage distances, clearances and distances through insulation

21、 19 29 Resistance to heat, fire and tracking . 19 30 Resistance to rusting 19 31 Radiation, toxicity and similar hazards 19 Annexes . 24 Annex K (normative) Battery tools and battery packs . 24 Annex L (normative) Battery tools and battery packs provided with mains connection or non-isolated sources

22、. 24 Bibliography 25 Figure 101 Examples of gaps and rake angles . 20 Figure 102 Typical guard designs 21 Figure 103 Principal dimensions of flanges 22 Figure 104 Guard strength test: explanation of guard positions 22 60745-2-22 IEC:2011 3 Figure 105 Guard strength test: preparation of the cut-off m

23、achine 23 Figure 106 Guard strength test box 23 Table 101 Torques for testing flanges 15 Table 102 Guard thickness for diamond wheels . 16 4 60745-2-22 IEC:2011 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SAFETY Part 2-22: Particular requirements for cut-off m

24、achines FOREWORD 1) The International Electrotechnical 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 standardizatio

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26、rusted to technical committees; any IEC National Committee interested in the subject 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 Inte

27、rnational Organization for Standardization (ISO) in accordance 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

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30、 their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity ass

31、essment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, emp

32、loyees, 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 nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of t

33、he 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 referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the

34、 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. This part of International Standard IEC 60745 has been prepared by IEC technical committee 116: Safety of motor-operate

35、d electric tools. The text of this standard is based on the following documents: FDIS Report on voting 116/57/FDIS 116/62/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accor

36、dance with the ISO/IEC Directives, Part 2. This Part 2 is to be used in conjunction with the fourth edition of IEC 60745-1 (2006): Hand- held motor-operated electric tools Safety Part 1: General requirements, and its amendments. 60745-2-22 IEC:2011 5 NOTE 1 When “Part 1” is mentioned in this standar

37、d, it refers to IEC 60745-1. This part 2 supplements or modifies the corresponding clauses of IEC 60745-1, so as to convert that publication into the IEC standard: Safety requirements for electric cut-off machines. When a particular subclause of Part 1 is not mentioned in this part 2, that subclause

38、 applies as far as is reasonable. When this standard states “addition”, “modification” or “replacement”, the relevant text in Part 1 is to be adapted accordingly. NOTE 2 The following numbering system is used: subclauses, tables and figures that are numbered starting from 101 are additional to those

39、 in Part 1; additional annexes are lettered AA, BB, etc. NOTE 3 in this standard, the following print types are used: requirements: in roman type; test specifications: in italic type; notes: in smaller roman type. Words in bold in the text are defined in Clause 3. When a definition concerns an adjec

40、tive, the adjective and the associated noun are also in bold. Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101; additional annexes are lettered AA, BB, etc. A list of all the parts in the IEC 60745 series, published under the general title Hand-he

41、ld motor-operated electric tools Safety, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At thi

42、s date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 60745-2-22 IEC:2011 HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SAFETY Part 2-22: Particular requirements for cut-off machines 1 Scope This clause of Part 1 is applicable as follows: Addition: This stand

43、ard applies to cut-off machines fitted with one bonded reinforced wheel of Type 41 or Type 42, or one or more diamond cut-off wheels with the peripheral gaps, if any, not exceeding 10 mm and with a rated speed not exceeding a peripheral speed of the wheel of 100 m/s at rated capacity and a rated whe

44、el capacity range of 55 mm to 410 mm. These machines are intended to cut materials such as metals, concrete, masonry, glass and tile. This standard does not apply to: grinders, sanders, or polishers, even if they can be converted to a cut-off machine, which are covered by IEC 60745-2-3; circular saw

45、s which are covered by IEC 60745-2-5. 2 Normative references This clause of Part 1 is applicable except as follows: Addition: ISO 603-15:1999, Bonded abrasive products Dimensions Part 15: Grinding wheels for cutting-off on stationary or mobile cutting-off machines ISO 603-16:1999, Bonded abrasive pr

46、oducts Dimensions Part 16: Grinding wheels for cutting-off on hand-held power tools 3 Terms and definitions This clause of Part 1 is applicable, except as follows: 3.101 blotter thin piece of an easily compressible material, between the abrasive product and flange 60745-2-22 IEC:2011 7 3.102 flange

47、collar, disc, or plate between or against which wheels are mounted 3.102.1 flange outside diameter outside diameter of the contact surface of a flange 3.102.2 backing flange part that contacts and provides support to the back side of the wheel and is located on the spindle between wheel and tool 3.1

48、02.3 locking flange part that supports the front side of the wheel and secures and clamps the wheel to the spindle and the backing flange 3.103 cut-off machine tool driving a rotating spindle, with a guide plate or guide roller or similar means, on which a bonded reinforced wheel or diamond wheel is

49、 mounted and used for peripheral grinding 3.104 rated capacity maximum intended diameter of the rotating accessory to be fitted on the tool as recommended by the manufacturers instruction 3.105 rated speed maximum attainable speed as designated by the manufacturer, with any recommended accessory installed, at rated voltage or at the upper limit of the rat