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1、BRITISH STANDARD BS EN 50144-2-9:1996 Safety of hand-held electric motor operated tools Part 2-9: Particular requirements for tappers The European Standard EN 50144-2-9:1996 has the status of a British Standard ICS 25.100.50; 25.140.20 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08
2、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50144-2-9:1996 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 October 1996 BSI 11-1998 The following BSI refere
3、nces relate to the work on this standard: Committee reference CPL/61/6 Draft for comment 92/05033 DC ISBN 0 580 25893 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee CPL/61, Safety of electrical appliances, to Subcommit
4、tee CPL/61/6, Portable motor-operated tools, upon which the following bodies were represented: Agricultural Engineers Association Association of Control Manufacturers (TACMA (BEAMA Ltd.) Association of Manufacturers Allied to the Electrical and Electronic Industry (BEAMA Ltd.) Association of Manufac
5、turers of Domestic Electrical Appliances Consumer Policy Committee of BSI Consumers Association Department of Trade and Industry (Consumer Safety Unit, CA Division) Electricity Association Health and Safety Executive Hire Association Europe Institution of Incorporated Executive Engineers Portable El
6、ectric Tool Manufacturers Association Rotating Electrical Machines Association (BEAMA Ltd.) Co-opted members Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50144-2-9:1996 BSI 11
7、-1998i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 50144-2-93 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50144-2-9:1996 ii BSI 11-1998 National foreword This British Standard has
8、 been prepared by Subcommittee CPL/61/6 and is the English language version of EN 50144-2-9:1996 Safety of hand-held electric motor operated tools Part 2-9: Particular requirements for tappers, published by the European Committee for Electrotechnical Standardization (CENELEC). It is to be read in co
9、njunction with BS EN 50144-1:1996 General requirements, which it supplements or modifies. The many references to Part 1 should be read as references to BS EN 50144-1:1996, which is the English language version of EN 50144-1:1995. The foreword of EN 50144-2-9 makes reference to the “date of withdrawa
10、l”, dow, of the relevant national standard. In this case the relevant national standard is BS 2769-2.9:1984 which will be withdrawn on 1 December 1996 in accordance with the CENELEC Internal Regulations. Reference is also made to the application of CENELEC Memorandum No. 6 with regard to certificati
11、on. Attention is drawn to Note 7 to Memorandum No. 6 which states: “The use of the certificate or mark licence in the running production may not go on for more than 60 months after dow. This should allow necessary changes in the production line and to use up supplies. Within the established period a
12、fter dow the certificates and mark licences will have to be reconsidered and cancelled or reissued”. For tools intended to be used in locations where special conditions prevail, as in ships and vehicles, and in hazardous locations, for example, where explosions are liable to occur, requirements addi
13、tional to those specified in the standard may be necessary. This standard calls for test procedures that may be injurious to safety or health if adequate precautions are not taken when conducting tests. Product certification Attention is drawn to the fact that products conforming to this British Sta
14、ndard may be approved by BSI Product Certification, and that such certification may be used for the purposes of participation in the CENELEC Certification Agreement. (Details of the BSI certification marks are given on the inside back cover.) A British Standard does not purport to include all the ne
15、cessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the
16、 EN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08
17、GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50144-2-9 February 1996 ICS 25.140.20; 25.100.50Supersedes IID 400.31 S1:1981 Descriptors: Hand-held electric motor operated tools, safety requirements, protection against electric shocks, fire protection
18、, protection against mechanical hazards English version Safety of hand-held electric motor operated tools Part 2-9: Particular requirements for tappers Scurit des outils lectroportatifs moteur Partie 2-9: Rgles particulires pour les taraudeuses Sicherheit von handgefhrten motorbetriebenen Elektrower
19、kzeugen Teil 2-9: Besondere Anforderungen fr Gewindebohrmaschinen This European Standard was approved by CENELEC on 1994-10-04. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national stan
20、dard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any oth
21、er language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany
22、, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secret
23、ariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright reserved to CENELEC members Ref. No. EN 50144-2-9:1996 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50144-2-9:1996 BSI 11-1998 2 Foreword This European Standard has been prepa
24、red by the Technical Committee 61F, Hand-held and transportable electric motor operated tools. The text of the draft was submitted to the Unique Acceptance Procedure (UAP) in December 1993 and was approved by CENELEC as EN 50144-2-9 on 1994-10-04. A draft for an amendment was submitted to the Unique
25、 Acceptance Procedure in April 1994 and was approved by CENELEC on 1994-10-04 for inclusion into the European Standard. This European Standard replaces HD 400.3I S1:1981. The following dates were fixed: As far as certification is concerned, CENELEC Memorandum 6 applies. This standard is divided into
26、 two Parts: Part 1: General Requirements, comprising clauses of a general character. Part 2: Particular Requirements, dealing with particular types of appliance. The clauses of these particular requirements supplement or modify the corresponding clauses in Part 1. Where the text of Part 2 indicates
27、an “addition” to, or a “replacement” of the relevant requirement, test specification or explanation of Part 1, these changes are made to the relevant text of Part 1, which then becomes part of the standard. Where no change is necessary, the words “This clause of Part 1 is applicable” are used in Par
28、t 2. NOTEIn this standard the following print types are used: Requirements proper: in roman type; Test specification: in italic type; Explanatory matter: in smaller type. Contents Page 1Scope3 2Definitions3 3General requirements3 4General conditions for the tests3 5Rating3 6Classification3 7Marking3
29、 8Protection against electric shock3 9Starting3 10Input and current3 11Heating3 12Leakage current3 13Environmental requirements3 14Moisture resistance3 15Insulation resistance and electric strength3 16Endurance3 17Abnormal operation3 18Mechanical hazards3 19Mechanical strength3 20Construction3 21Com
30、ponents4 22Internal wiring4 23Supply connection and external flexible cables and cords4 24Terminals for external conductors4 25Provision for earthing4 26Screws and connections4 27Creepage distances, clearances and distances through insulation4 28Resistance to heat, fire and tracking4 29Resistance to
31、 rusting4 30Radiation4 Annexes5 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1996-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1996-12-01 Licensed Cop
32、y: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50144-2-9:1996 BSI 11-19983 1 Scope This clause of Part 1 is applicable except as follows: 1.1 Addition: This standard applies to tappers. 2 Definitions This clause of Part 1 is applicable except as fol
33、lows: 2.2 Replacement: 18. normal load The load obtained when the tapper is operated intermittently, each cycle comprising a period of operation of 10 min and a rest period of 10 min with the tapper switched off, the load during the periods of operation being such that the input, in watts, is equal
34、to rated input. NOTEThe normal load is based on the rated voltage or on the upper limit of the rated voltage range. 3 General requirements This clause of Part 1 is applicable. 4 General conditions for the tests This clause of Part 1 is applicable except as follows: 4.10 Addition: For tests carried o
35、ut under normal load, the load may be applied by means of a brake. 5 Rating This clause of Part 1 is applicable. 6 Classification This clause of Part 1 is applicable. 7 Marking This clause of Part 1 is applicable except as follows: 7.1 Addition: Tappers shall be marked with: maximum diameter, in mil
36、limetres, of the thread which can be cut. NOTEUnless otherwise indicated on the tapper, the marking for maximum diameter of the thread which can be cut is related to cutting a unified metric ISO thread in steel having a tensile strength of 390 MPa (390 N/mm2) and a thickness of twice the thread diam
37、eter. 8 Protection against electric shock This clause of Part 1 is applicable. 9 Starting This clause of Part 1 is applicable. 10 Input and current This clause of Part 1 is applicable except as follows: 10.1 This subclause is not applicable. 10.2 Addition The measurement is made at the end of the th
38、ird period of operation. 11 Heating This clause of Part 1 is applicable except as follows: 11.5 Addition: Temperature rises are determined at the end of the sixth period of operation. 12 Leakage current This clause of Part 1 is applicable. 13 Environmental requirements This clause of Part 1 is appli
39、cable except as follows: 13.2.3 Replacement of paragraphs 1, 2 and 3: Tappers are tested at no-load. 13.2.4 Addition: The tap holder shall be horizontal. 13.3 Replacement The vibration level for hand-arm vibration in the user instructions, as required by 7.13.1, shall be quoted as being less than 2,
40、5 m/s2. 14 Moisture resistance This clause of Part 1 is applicable. 15 Insulation resistance and electric strength This clause of Part 1 is applicable. 16 Endurance This clause of Part 1 is applicable. 17 Abnormal operation This clause of Part 1 is applicable. 18 Mechanical hazards This clause of Pa
41、rt 1 is applicable. 19 Mechanical strength This clause of Part 1 is applicable. 20 Construction This clause of Part 1 is applicable. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50144-2-9:1996 4 BSI 11-1998 21 Components This clause of
42、 Part 1 is applicable. 22 Internal wiring This clause of Part 1 is applicable. 23 Supply connection and external flexible cables and cords This clause of Part 1 is applicable. 24 Terminals for external conductors This clause of Part 1 is applicable. 25 Provision for earthing This clause of Part 1 is
43、 applicable. 26 Screws and connections This clause of Part 1 is applicable. 27 Creepage distances, clearances and distances through insulation This clause of Part 1 is applicable. 28 Resistance to heat, fire and tracking This clause of Part 1 is applicable. 29 Resistance to rusting This clause of Pa
44、rt 1 is applicable. 30 Radiation This clause of Part 1 is applicable. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50144-2-9:1996 BSI 11-19985 Annexes The annexes of Part 1 are applicable. Licensed Copy: sheffieldun sheffieldun, na, Mo
45、n Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50144-2-9:1996 BSI 11-1998 BSI Certification marking The BSI Kitemark shown below may be used under licence on product
46、s which have been certified to this standard. Information on the conditions under which a licence can be granted may be obtained from BSI Product Certification, Maylands Avenue, Hemel Hempstead, Hertfordshire HP2 4sQ. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:08 GMT+00:00 2006, Un
47、controlled Copy, (c) BSI BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
48、| | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amend
49、ment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that