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1、BRITISH STANDARD BS EN 50144-2-6:2001 Incorporating Amendment No. 1 Safety of hand-held electric motor operated tools Part 2-6: Particular requirements for hammers The European Standard EN 50144-2-6:2000, with the incorporation of Amendment A1:2001, has the status of a British Standard ICS 25.140.20
2、 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 50144-2-6:2001 This British Standard, having been prepared under the direction of the
3、 Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 March 2001 BSI 25 April 2002 ISBN 0 580 37201 4 National foreword This British Standard is the official English language version of EN 50144-2-6:2000 including amendment A1:20
4、01. It supersedes BS EN 50144-2-6:1997 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee CPL/61, Safety of household and similar electrical appliances, to Subcommittee CPL/61/6, Portable motor operated tools, which has the responsibility to: A list of o
5、rganizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “ International
6、 Standards Correspondence Index” , or by using the “ Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Britis
7、h Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European devel
8、opments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Sidelining in this document indicate
9、s the most recent changes by amendment. Amendments issued since publication Amd. No. DateComments 1354025 April 2002Indicated by a sideline Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARDEN 501
10、44-2-6 NORME EUROPENNEDecember 2000 EUROPISCHE NORM+ A1 August 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2000 CENELEC
11、 -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50144-2-6:2000 + A1:2001 E ICS 25.140.20; 25.120.10Supersedes EN 50144-2-6:1996 English version Safety of hand-held electric motor operated tools Part 2-6: Particular requirements for hammer
12、s (includes amendment A1:2001) Scurit des outils lectroportatifs moteur Partie 2-6: Rgles particulires pour les marteaux (inclut l?amendement A1:2001) Sicherheit handgefhrter motorbetriebener Elektrowerkzeuge Teil 2-6: Besondere Anforderungen an Hmmer (enthlt nderung A1:2001) This European Standard
13、was approved by CENELEC on 1998-10-01. Amendment A1 was approved by CENELEC on 2001-05-01. 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 standard without any alteration. Up-to-da
14、te 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 other language made by translation under
15、 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ir
16、eland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Page 2 EN 50144-2-6:2000 BSI 25 April 2002 Foreword This Eu
17、ropean Standard has been prepared by the Technical Committee CENELEC TC 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 50144-2-6 on 1994-10-04. A draft for
18、 an amendment was submitted to UAP in April 1994 and was approved by CENELEC on 1994-10-04 for inclusion into the European Standard. A further amendment was submitted to UAP in May 1996 and was approved by CENELEC as amendment A1 to EN 50144-2-6 on 1996-12-09. Amendments to fulfil the essential requ
19、irements of the Machinery Directive were submitted to the formal vote in June 1998 and were approved by CENELEC on 1998-10-01 for inclusion, together with the earlier amendment, into a second edition of EN 50144-2-6. This European Standard supersedes EN 50144-2-6:1996. The following dates were fixed
20、: -latest date by which the EN has to be implemented at a national level by publication of an identical national standard or by endorsement(dop)2001-07-01 -latest date by which the national standards conflicting with the EN have to be withdrawn(dow)2001-12-01 This standard is divided into two parts:
21、 Part 1: General requirements which are common to most hand-held electric motor operated tools (for the purpose of this standard referred to simply as tools). Part 2: Requirements for particular types of tool which either supplement or modify the requirements given in Part 1 to account for the parti
22、cular hazards and characteristics of these specific tools. This European Standard has been prepared under a mandate given to CEN/CENELEC by the European Commission and the European Free Trade Association and supports the essential health and safety requirements of the Machinery Directive. Compliance
23、 with the clauses of Part 1 together with this Part 2 provides one means of conforming with the essential health and safety requirements of the Directive. For noise and vibration this standard covers the requirements for their measurement, the provision of information arising from these measurements
24、 and the provision of information about the personal protective equipment required. Specific requirements for the reduction of the risk arising from noise and vibration through the design of the tool are not given as this reflects the current state of the art. As with any standard, technical progres
25、s will be kept under review so that any developments can be taken into account. CEN TC/255 is producing standards for non-electrically powered tools. Warning:Other requirements and other EC Directives can be applicable to the products falling within the scope of this standard. This standard follows
26、the overall requirements of EN 292-1 and EN 292-2. Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101. NOTE:In this European Standard the following print types are used: - Requirements proper; - Test specifications; - Explanatory matter. Licensed Co
27、py: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? Page 3 EN 50144-2-6:2000 BSI 25 April 2002 Foreword to amendment A1 This amendment to the European Standard EN 50144-2-6 was prepared by the Technical Committee CENELEC TC
28、61F, Hand-held and transportable electric motor-operated tools. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as amendment A1 to EN 50144-2-6:2000 on 2001-05-01. The following dates were fixed: latest date by which the amendment has to be implemen
29、ted at national level by publication of an identical national standard or by endorsement(dop)2002-08-01 latest date by which the national standards conflicting with the amendment have to be withdrawn(dow)2004-08-01 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08
30、12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? Page 4 EN 50144-2-6:2000 BSI 25 April 2002 Contents Page 1Scope.5 2Definitions.5 3General requirements5 4General conditions for the tests.5 5Rating 5 6Classification5 7Marking and information for use 5 8Protection against electric shock.6 9Starti
31、ng .6 10Input and current6 11Heating 6 12Leakage current6 13Environmental requirements.6 14Moisture resistance9 15Insulation resistance and electric strength.9 16Endurance.9 17Abnormal operation .9 18Mechanical hazards .9 19Mechanical strength.11 20Construction.11 21Components12 22Internal wiring.12
32、 23Supply connection and external flexible cables and cords.12 24Terminals for external conductors.12 25Provision for earthing12 26Screws and connections.12 27Creepage distances, clearances and distances through insulation.12 28Resistance to heat, fire and tracking .12 29Resistance to rusting.12 30R
33、adiation.12 Annexes 17 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? Page 5 EN 50144-2-6:2000 BSI 25 April 2002 1Scope This clause of Part 1 is applicable except as follows: Addition: This European Standard
34、applies to hammers including rotary hammers. This standard does not give requirements for the design of the tool for the reduction of the risk arising from noise and vibration. 2Definitions This clause of Part 1 is applicable except as follows: 2.2.18Replacement: 2.2.18normal load: load obtained whe
35、n the hammer, mounted in an apparatus as shown in Figure 101, is operated intermittently, each cycle comprising a period of operation of 30 s and a rest period of 90 s with the hammer switched off, an axial force just sufficient to ensure steady operation of the hammer mechanism being applied to the
36、 hammer through a resilient medium 3General requirements This clause of Part 1 is applicable. 4General conditions for the tests This clause of Part 1 is applicable. 5Rating This clause of Part 1 is applicable. 6Classification This clause of Part 1 is applicable. 7Marking and information for use This
37、 clause of Part 1 is applicable except as follows: 7.13.1Addition: information on the correct use of dust collection equipment, if fitted; Additional subclause: 7.13.101 The instruction sheet shall also include the following: “Hearing protection should be worn”. Licensed Copy: Institute Of Technolog
38、y Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? Page 6 EN 50144-2-6:2000 BSI 25 April 2002 8Protection against electric shock This clause of Part 1 is applicable. 9Starting This clause of Part 1 is applicable. 10Input and current This clause of P
39、art 1 is applicable. 11Heating This clause of Part 1 is applicable except as follows: 11.2Addition: If it is not possible to attain rated input when operating the hammer as specified for normal load, the hammer is loaded by means of a brake adjusted so as to attain rated input, the hammer mechanism
40、being not engaged or removed. 11.6Addition: The temperature rise limit specified for the external enclosure does not apply to the hammer mechanism. 12Leakage current This clause of Part 1 is applicable. 13Environmental requirements This clause of Part 1 is applicable except as follows: 13.1.2Replace
41、ment: The tests under working conditions, orientation within the cabin and material to be worked shall be in accordance with the following: MaterialConcrete block 800 mm ? 500 mm ? 200 mm, formulation in accordance with Table 101. Table 101 Concrete formulation (per cubic metre) CementWaterAggregate
42、 1844 kg Particle sizeFraction (%) 330 kg99 kg 0 to 2 mm38 3 0 to 8 mm50 5 0 to 16 mm80 5 0 to 32 mm100 Compressive strength after 28 days to be 40 N/mm2. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? Page 7
43、 EN 50144-2-6:2000 BSI 25 April 2002 Feed-speedJust sufficient force to ensure steady working. Depth of cut80 % of drill bit length but not more than 190 mm. Width of cut-offNot applicable. Tool bit/cutter/Type as specified by the manufacturer which is as close as possible to Table 102. abrasive Tab
44、le 102 Drill bit size Tool mass kg ? 3,5 3,5 ? 5 5 ? 7 7 ? 10 10 ? 18 18 Diameter of drill bit mm 101620253240 Usable length of drill bit mm 100200250 New or sharpened drill to be used at the start of the test period. Integral collection Emptied as required during a pause in the test. (if any) Orien
45、tationHammers having a tool mass of up to 10 kg: drilling in a horizontal direction across the cabin with the airflow from left to right of the operator (see Figure 102). Holes drilled to be within 90 cm to 120 cm of the floor. This is achievable by placing the test block on a bench 80 cm high, the
46、800 mm side of the test block being horizontal. Hammers having a tool mass of over 10 kg: drilling down in a vertical direction, with the airflow from left to right of the operator. The upper surface of the test block should be between 200 mm and 400 mm above the floor surface. This allows the block
47、 to be supported on e.g. wood blocks for ease of transportation. Test cycleOne hole every 4 minutes. Test period60 minutes total. 13.2Addition: Test requirements for hammers without rotary action are not covered by this standard. 13.2.2Replacement of paragraph 2: For hammers with rotary action the s
48、peed setting shall be that recommended by the manufacturer for the drill bit size defined for the test for drilling in concrete. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:33:19 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? Page 8 EN 50144-2-6:2000 BSI 25
49、April 2002 13.2.3Replacement: Rotary hammers are tested under load as shown in Figure 103 and in accordance with the conditions shown in Tables 101, 102 and 103. Care shall be taken that the location of the work piece on its support does not adversely affect the result of the test. If necessary, the work piece shall be supported on a resilient material 20 mm thick which compresses to 10 mm under the weight of the work piece. The result to be used shall be the arithmeti