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Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BRITISH STANDARD Safety of hand-held electric motor operated tools Part 2-11 Particular requirements for sabre saws and double blade reciprocating saws The European Standard EN 50144-2-11 : 1996 has the status of a British Standard ICS 25.100.40; 25.140.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BS EN 50144-2-11 : 1997 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 50144-2-11 : 1997 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee CPL/61, Safety of electrical appliances, to Subcommittee 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 Manufacturers 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 Electric Tool Manufacturers' Association Rotating Electrical Machines Association (BEAMA Ltd.) Co-opted members 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 January 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference CPL/61/6 Draft for comment 94/206318 DC ISBN 580 26844 Amendments issued since publication Amd No Date Text affected Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 50144-2-11 : 1997 Contents Committees responsible National foreword Foreword Text of EN 50144-2-11 BSI 1997 Page Inside front cover ii i Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 50144-2-11 : 1997 National foreword This British Standard has been prepared by subcommittee CPL/61/6 and is the English language version of EN 50144-2-11 : 1996 Safety of hand-held electric motor operated tools Part 2-11: Particular requirements for sabre saws and double blade reciprocating saws, published by the European Committee for Electrotechnical Standardization (CENELEC) It is to be read in conjunction with BS EN 50144-1 : 1996 General requirements which it supplements or modifies The many references to Part 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 50144-2-11 makes reference to the `Date of withdrawal', dow, of the relevant national standard In this case there is no conflicting British Standard Reference is also made to the application of CENELEC Memorandum No with regard to certification Attention is drawn to Note to Memorandum No 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 after 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 additional 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 Standard 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 mark are given on the inside back cover.) Compliance with a British Standard does not of itself confer immunity from legal obligations ii BSI 1997 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 50144-2-11 EUROPEAN STANDARD NORME EUROPÊENNE EUROPẰISCHE NORM August 1996 ICS 25.140.20; 25.080.60 Descriptors: Hand-held electric motor-operated tools, sabre saws, reciprocating saws, safety requirements, protection against electric shocks, fire protection, protection against mechanical hazards English version Safety of hand-held electric motor operated tools Part 2-11: Particular requirements for sabre saws and double blade reciprocating saws SeÂcurite des outils eÂlectroportatifs aÁ moteur Partie 2-11: ReÁgles particulieÁres pour les scies sabres et les scies alternatives aÁ lame double Sicherheit handgefuÈhrter Elektrowerkzeuge Teil 2-11: Besondere Anforderungen an SaÈbelsaÈgen und SaÈgen mit hin- und hergehendem doppelten SaÈgeblatt ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This European Standard was approved by CENELEC on 1995-03-06 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-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 other 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 standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CENELEC European Committee for Electrotechnical Standardization Comite EuropeÂen de Normalisation Electrotechnique EuropaÈisches Komitee fuÈr Electrotechnishe Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright reserved to CENELEC members Ref No EN 50144-2-11 : 1996 E Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Page EN 50144-2-11 : 1996 Foreword This European Standard has been prepared 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 April 1994 and was approved by CENELEC as EN 50144-2-11 on 1995-03-06 The following dates were fixed: ± ± latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1997-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1997-06-01 As far as certification is concerned, CENELEC Memorandum applies This standard is divided into two parts Part 1: General Requirements, comprising clauses of a general character Part 2: Particular Requirements, dealing with particular types of appliances The clauses of these particular requirements supplement or modify the corresponding clauses in Part Where the text of Part indicates 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 is applicable' are used in Part NOTE In this standard the following print types are used: ± Requirements proper: in roman type; ± Test specifications: in italic type; ± Explanatory matter: in smaller roman type Contents 10 11 12 13 14 15 Scope Definitions General requirements General conditions for the tests Rating Classification Marking Protection against electric shock Starting Input and current Heating Leakage current Environmental requirements Moisture resistance Insulation resistance and electric strength 16 Endurance 17 Abnormal operation 18 Mechanical hazards 19 Mechanical strength 20 Construction 21 Components 22 Internal wiring 23 Supply connection and external flexible cables and cords 24 Terminals for external conductors 25 Provision for earthing 26 Screws and connections 27 Creepage distances, clearances and distance through insulation 28 Resistance to heat, fire and tracking 29 Resistance to rusting 30 Radiation Annexes Page 3 3 3 3 3 3 4 4 4 4 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ 4 4 4 4 BSI 1997 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Page EN 50144-2-11 : 1996 Scope Protection against electric shock This clause of Part is applicable except as follows: This clause of Part is applicable 1.1 Addition: This standard applies to sabre saws and double blade reciprocating saws intended to cut wood and similar materials Starting This clause of Part is applicable 10 Input and current Definitions This clause of Part is applicable except as follows: This clause of Part is applicable except as follows: 2.2 Replacement: 18 normal load For sabre saws and double blade reciprocating saws intended to cut wood, the load obtained when the saw is operated continuously the load being such that the input, in watts, is equal to rated input 10.1 Modification: This test is not made 10.2 Addition: The measurement is made after the saw has been operated for 10 NOTE The normal load is based on the rated voltage or on the upper limit of the rated voltage range 11 Heating General requirements 11.5 The saw is operated for 30 This clause of Part is applicable General conditions for the tests This clause of Part is applicable except as follows: 12 Leakage current ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This clause of Part is applicable except as follows: 4.10 Addition: For tests carried out at normal load, the reciprocating mechanism may be replaced by a rotating gear, so that the saw can be loaded by means of a brake This clause of Part is applicable 13 Environmental requirements This clause of Part is applicable except as follows: This clause of Part is applicable 13.1 Addition: If saws are fitted with integral dust collection devices or devices which allow the connection of external dust collection equipment, the test under working conditions, orientation within the cabin and material to be worked shall be in accordance with the following: Classification Material Rating This clause of Part is applicable Marking This clause of Part is applicable except as follows: 7.1 Addition: Sabre saws and double blade reciprocating saws intended to cut wood shall be marked with: ± maximum cutting length in millimetres; ± number of reciprocations per minute under no-load conditions NOTE The number of reciprocations under no-load conditions determined after the saw has been running idle for 10 at rated voltage or at the upper limit of the rated voltage range 7.13 Addition: If the saw is fitted with a device which allows the connection of external dust collection equipment, in the instruction sheet instructions shall be given how to connect such a device BSI 1997 Feed-speed Depth of cut Width of cut-off Tool bit/cutter/abrasive Integral collection (if any) Orientation Test cycle Test period Chipboard 19 mm 800 mm 400 mm At a brisk place without overloading the tool Blade to be extended beyond thickness of material at all times 10 mm New blade, at the start of the test period, as recommended by the manufacturer Emptied during minute rest time Across the cabin with the airflow from left to the right of the tool 10 cuts in minutes, with a minute rest time (Total 12 minutes) complete cycles (total hour) Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Page EN 50144-2-11 : 1996 14 Moisture resistance This clause of Part is applicable 23 Supply connection and external flexible cables and cords This clause of Part is applicable 15 Insulation resistance and electric strength 24 Terminals and external conductors This clause of Part is applicable This clause of Part is applicable 16 Endurance 25 Provision for earthing This clause of Part is applicable This clause of Part is applicable 17 Abnormal operation 26 Screws and connections This clause of Part is applicable This clause of Part is applicable 18 Mechanical hazards 27 Creepage distances, clearances and distance through insulation This clause of Part is applicable This clause of Part is applicable 19 Mechanical strength This clause of Part is applicable 28 Resistance to heat, fire and tracking This clause of Part is applicable 20 Construction This clause of Part is applicable 29 Resistance to rusting ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This clause of Part is applicable 21 Components This clause of Part is applicable 30 Radiation This clause of Part is applicable 22 Internal wiring This clause of Part is applicable Annexes The annexes of Part are applicable BSI 1997 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 50144-2-11 : 1997 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ BSI Certification marking The BSI Kitemark shown below may be used under licence on products 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 P.O Box 375, Milton Keynes MK14 6LL BSI 1997 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Tue May 08 12:23:54 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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