1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationHand-held motor-operated electric tools Safety Part 2-8: Particular requirements for shears and nibblersBS EN 60745-2-8:2009National forewordThis British Standard is the UK imple
2、mentation of EN 60745-2-8:2009. It was derived by CENELEC from IEC 60745-2-8:20038:2003+A1:2009, which will be withdrawn on 1 May 2012.The CENELEC common modifications have been implemented at the appropriate places in the text and are indicated by tags (e.g. ).The UK participation in its preparatio
3、n was entrusted to Technical Committee CPL/116, Portable motor-operated tools.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its corre
4、ct application. BSI 2010ISBN 978 0 580 64796 3ICS 25.120.10; 25.140.20; 25.140.30Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2010Amd. No. Date Text
5、affectedBRITISH STANDARDBS EN 60745-2-8:2009, incorporating amendment1:200 .The start and finish of text introduced or altered by amendment is indicated in the text by tags. Text indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is ind
6、icated by .!“Amendments/corrigenda issued since publication8 It supersedes BS EN 60745-2-EUROPEAN STANDARD EN 60745-2-8 NORME EUROPENNE EUROPISCHE NORM September 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee f
7、r Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60745-2-8:2009 E English version Hand-held motor-operated electric tools - Safety - Part 2-8
8、: Particular requirements for shears and nibblers (IEC 60745-2-8:2003, modified + A1:2008) Outils lectroportatifs moteur - Scurit - Partie 2-8: Rgles particulires pour les cisailles mtaux et les grignoteuses (CEI 60745-2-8:2003, modifie + A1:2008)Handgefhrte motorbetriebene Elektrowerkzeuge - Sicher
9、heit - Teil 2-8: Besondere Anforderungen fr Blechscheren und Nibbler (IEC 60745-2-8:2003, modifiziert + A1:2008) This European Standard was approved by CENELEC on 2009-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
10、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
11、(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 electrotechnical committees of Aust
12、ria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. I
13、CS 25.140.20; 25.140.30; 25.140.10 Supersedes EN 60745-2-8:2003 + A1:2009 + A11:2007Foreword The text of the International Standard IEC 60745-2-8:2003, prepared by SC 61F (transformed into IEC TC 116, Safety of hand-held motor-operated electric tools), together with the common modifications prepared
14、 by the Technical Committee CENELEC TC 61F (transformed into TC 116) was submitted to the formal vote and was approved by CENELEC as EN 60745-2-8 on 2003-02-01. A draft amendment (prAB) was prepared to align Subclause 6.2 with the new Subclause 6.2 in EN 60745-1. Moreover, vibration values determine
15、d with the new 6.2 are complying with the requirements of the Physical Agents Directive Vibration 2002/44/EC. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as amendment A11 to EN 60745-2-8:2003 on 2007-06-01. The text of document 61F/735/FDIS, fut
16、ure amendment 1 to IEC 60745-2-8:2003, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 60745-2-8:2003 on 2009-04-22. A further draft amendment (prAC), extending Annex ZZ to include the new MD 2006/42/EC, was submitted to the formal vote. The combined
17、texts were approved by CENELEC as a new edition of EN 60745-2-8 on 2009-07-01. This European Standard supersedes EN 60745-2-8:2003 + A11:2007 + A1:2009. The following dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identical national stand
18、ard or by endorsement (dop) 2010-02-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-05-01 This standard is divided into two parts: Part 1: General requirements which are common to most hand-held electric motor-operated tools (for the purpose o
19、f this standard referred to simply as tools) which could come within the scope of this standard; Part 2: Requirements for particular types of tools which either supplement or modify the requirements given in Part 1 to account for the particular hazards and characteristics of these specific tools. Th
20、is European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and supports the essential requirements of EC Directive 98/37/EC (Machinery Directive), amended by EC Directive 98/79/EC, and of EC Directive 2006/42/EC. See Ann
21、exes ZZA and ZZB. Compliance 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 concerned. CEN/TC 255 is producing standards for non-electric shears and nibblers (EN 792-11). Warning: Other requirem
22、ents and other EC Directives can be applicable to the products falling within the scope of this standard. This standard follows the overall requirements of EN ISO 12100-1 and EN ISO 12100-2. BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 2 -This Part 2-8 is to be used in conjunction with EN 60745-1:2009
23、. When this standard states “addition“, “modification“ or “replacement“, the relevant text in Part 1 is to be adapted accordingly Subclauses and figures which are additional to those in Part 1 are numbered starting from 101. Subclauses, tables and figures which are additional to those in IEC 60745-2
24、-8 are prefixed “Z”. NOTE In this standard, the following print types are used: - Requirements: in roman type; - Test specification: in italic type; - Notes: in smaller roman type. _BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 3 -Endorsement notice The text of the International Standard IEC 60745-2-8:
25、2003 + A1:2008 was approved by CENELEC as a European Standard with agreed common modifications. BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 4 -Annex ZZ (informative) Coverage of Essential Requirements of EC Directives Annex ZZA (informative) Coverage of Essential Requirements of Directive 98/37/EC Th
26、is European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and within its scope the standard covers all relevant Essential Requirements as given in EC Directive 98/37/EC (Machinery Directive), amended by Directive 98/79/
27、EC. Compliance with this standard provides one means of conformity with the specified essential requirements of the Directives concerned. WARNING: Other requirements and other EC Directives may be applicable to the products falling within the scope of this standard. Annex ZZB (informative) Coverage
28、of Essential Requirements of Directive 2006/42/EC This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and within its scope the standard covers all relevant Essential Requirements as given in EC Directive 2006/42
29、/EC (Machinery Directive). Compliance with this standard provides one means of conformity with the specified essential requirements of the Directive concerned. WARNING: Other requirements and other EC Directives may be applicable to the products falling within the scope of this standard. _ BS EN 607
30、45-2-8:2009EN 60745-2-8:2009 (E)- 5 -HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SAFETY Part 2-8: Particular requirements for shears and nibblers1 Scope2 Normative referencesThis clause of Part 1 is applicable.3This clause of Part 1 is applicable except as follows:Additional definitions:3.101sheartool i
31、ntended for shearing of metal sheets, plates and strips3.102nibblertool intended for punching of metal sheets, plates and strips4 General requirementsThis clause of Part 1 is applicable.5 General conditions for the testsThis clause of Part 1 is applicable.This clause of Part 1 is applicable except a
32、s follows: Addition: This standard applies to shears and nibblers. !“Terms and Definitions! “6 Environmental requirements This clause of Part 1 is applicable except as follows: 6.1.2.4 Modification: Shears and nibblers are suspended, the orientation of the tool to be as for cutting a horizontal shee
33、t of metal. 6.1.2.5 Modification: Shears and nibblers are tested at no-load. 6.2.4.2 Location of the measurement Addition: Figure Z101 shows the measurement positions for different shears and nibblers. 6.2 Vibration 6.2.4.2 Location of the measurement Addition: Figure Z101 shows the measurement posi
34、tions for different shears and nibblers. BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 6 -6.2.6.3 Operating conditions Modification: Table Z101 Operating conditions for shears and nibblers Orientation Cutting a horizontal strip of sheet metal with a minimum length of 400 mm and a minimum width of 400 m
35、m. The metal sheet shall have the maximum thickness specified in 8.1 (tensile strength = 390 N/mm). The metal sheet used in the test shall be firmly secured to the test rig using resilient material. It shall be mounted so that it does not have any significant resonance in the frequency range that ca
36、n influence the test result. A typical test rig is shown in Figure Z102. Each cut strip of 50 mm wide for the width of 400 mm shall be as near as possible to the support. During the test, the tool shall be arranged so that the operator can have an upright or almost upright posture and work the nibbl
37、er or shear cutting horizontally. The operator shall be able to hold the tool comfortably during the test. Tool bit Nibblers are operated with a punch and die of the size specified for the sheet metal used in the test. Shears are operated with shear blades of the size specified for the sheet metal u
38、sed in the test. They shall be sharp and in good condition. Feed force Suitable feed force shall be applied to ensure a stable and smooth operation. Test cycle Cutting off one 50 mm wide strip across the 400 mm width of the sheet metal. The measurement starts when the blade enters the sheet metal an
39、d finishes when the blade leaves the sheet metal. 6.2.7.2 Declaration of the vibration total value Addition: The vibration total value ahof the handle with the highest emission and the uncertainty K shall be declared. BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 7 -8 Marking and instructionsThis claus
40、e of Part 1 is applicable, except as follows:8.1 Addition:In addition the tool shall have the following marking: maximum thickness, in millimetres, of sheet metal which can be cut.The marking for the maximum thickness shall be related to steel having a tensile strength of390 N/mm, unless otherwise i
41、ndicated on the tool.9 Protection against access to live partsThis clause of Part 1 is applicable.10 StartingThis clause of Part 1 is applicable.11 Input and currentThis clause of Part 1 is applicable.12 HeatingThis clause of Part 1 is applicable, except as follows:12.4 Replacement:The tool is opera
42、ted at rated input or rated current for 30 min. The temperature rises aremeasured at the end of the 30 min.13 Leakage currentThis clause of Part 1 is applicable.14 Moisture resistanceThis clause of Part 1 is applicable.15 Electric strengthThis clause of Part 1 is applicable.16 Overload protection of
43、 transformers and associated circuitsThis clause of Part 1 is applicable.7 ClassificationThis clause of Part 1 is applicable.BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 8 -17 EnduranceThis clause of Part 1 is applicable.18 Abnormal operationThis clause of Part 1 is applicable.19 Mechanical hazardsThi
44、s clause of Part 1 is applicable.20 Mechanical strength21 Construction22 Internal wiringThis clause of Part 1 is applicable.23 ComponentsThis clause of Part 1 is applicable.24 Supply connection and external flexible cordsThis clause of Part 1 is applicable, except as follows:24.4 Replacement of the
45、first paragraph:Supply cords shall be not lighter than heavy polychloroprene sheathed flexible cable(60245 IEC 66).25 Terminals for external conductorsThis clause of Part 1 is applicable.26 Provision for earthingThis clause of Part 1 is applicable.27 Screws and connectionsThis clause of Part 1 is ap
46、plicable.This clause of Part 1 is applicable, except as follows: 20.5 This subclause is not applicable. !“This clause of Part 1 is applicable, except as follows: 21.32 This subclause is not applicable. !“21.Z1 This subclause of Part 1 is not applicable. BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 9 -
47、28 Creepage distances, clearances and distances through insulationThis clause of Part 1 is applicable.29 Resistance to heat, fire and trackingThis clause of Part 1 is applicable.30 Resistance to rustingThis clause of Part 1 is applicable.31 Radiation, toxicity and similar hazardsThis clause of Part
48、1 is applicable.BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 10 -Figure Z101 - Positions of transducers for shears and nibblers BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 11 -Figure Z102 - Test rig with workpiece BS EN 60745-2-8:2009EN 60745-2-8:2009 (E)- 12 -AnnexesThe annexes of Part 1 are applicabl
49、e except as follows.BibliographyThe bibliography of Part 1 is applicable._Annex K (normative) Battery tools and battery packs K.1 Addition: All clauses of this Part 2 apply unless otherwise specified in this annex. K.12.4 This subclause of Part 2 is not applicable. K.24.4 This subclause of Part 2 is not applicable. Annex L (normative) Battery tools and battery packs provided with mains connection or non-isolated sources L.1 Addition: All clauses of this Part 2 apply unless otherwise specified in t
