1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationHand-held motor-operated electric tools SafetyPart 2-4: Particular requirements for sanders and polishers other than disk typeBS EN 60745-2-4:2009+A11:2011National forewordThis B
2、ritish Standard is the UK implementation of EN 60745-2-4:2009+A11:2011. It was derived by CENELEC from IEC 60745-2-4:2002, incorporating amendment 1:2008. It supersedes BS EN 60745-2-4:2009, which will be withdrawn on 14 November 2014.The CENELEC common modifications have been implemented at the app
3、ropriate places in the text and are indicated by tags (e.g. ).The UK participation in its preparation was entrusted by Technical CommitteeCPL/116, Safety of motor-operated electric tools, to Subcommittee CPL/116/2,A list of organizations represented on this subcommittee can be obtained on request to
4、 its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012 ISBN 978 0 580 75538 5 ICS 25.080.50; 25.140.20; 25.140.30Compliance with a British Standard cannot confer
5、 immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2010.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60745-2-4:2009+A11:201131 January 2012 Implementation of CENE
6、LEC amendment A11:2011: Tables Z101 and Z102 replacedSafety of electric motor-operated hand-held tools.EUROPEAN STANDARD EN 60745-2-4:2009+A11NORME EUROPENNE EUROPISCHE NORM December 2011CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique E
7、uropisches Komitee fr 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 60745-2-4:2009 E ICS 25.140.20; 25.140.30; 25.080.50 Supersedes EN 60745
8、-2-4:2009English version Hand-held motor-operated electric tools - Safety - Part 2-4: Particular requirements for sanders and polishers other than disk type (IEC 60745-2-4:2002 + A1:2008, modified) Outils lectroportatifs moteur - Scurit - Partie 2-4: Rgles particulires pour les ponceuses et les lust
9、reuses autres que du type disque (CEI 60745-2-4:2002 + A1:2008, modifis) Handgefhrte motorbetriebene Elektrowerkzeuge - Sicherheit - Teil 2-4: Besondere Anforderungen fr Schleifer und Polierer auer Tellerschleifern (IEC 60745-2-4:2002, + A1:2008, modifiziert) This European Standard was approved by C
10、ENELEC on 2009-09-01. 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-date lists and bibliographical references concerning such national stan
11、dards 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 not
12、ified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuan
13、ia, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of the International Standard IEC 60745-2-4:2002, prepared by SC 61F (transformed into IEC TC 116, Safety of hand-held motor-operated el
14、ectric tools), together with the common modifications prepared by the Technical Committee CENELEC TC 61F (transformed into TC 116), was submitted to the formal vote and was approved by CENELEC as EN 60745-2-4 on 2003-02-01. A draft amendment (prAB) was prepared to align Subclause 6.2 with the new Su
15、bclause 6.2 in EN 60745-1. Moreover, vibration values determined 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
16、-2-4:2003 on 2007-02-01. The text of document 61F/733/FDIS, future amendment 1 to IEC 60745-2-4:2002, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 60745-2-4:2003 on 2009-04-22. A further draft amendment (prAC), extending Annex ZZ to include the new
17、 MD 2006/42/EC, was submitted to the formal vote. The combined texts were approved by CENELEC as a new edition of EN 60745-2-4 on 2009-09-01. This European Standard supersedes EN 60745-2-4:2003 + A11:2007 + A1:2009. The following dates were fixed: - latest date by which the EN has to be implemented
18、at national level by publication of an identical national standard 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
19、most hand-held electric motor operated tools (for the purpose of 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 par
20、ticular hazards and characteristics of these specific tools. This 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
21、 EC Directive 98/79/EC, and of EC Directive 2006/42/EC. See Annexes 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-el
22、ectric sanders and polishers (EN 792-8). Warning: Other requirements 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 60745-2-4:2009+A11:2011 EN 60745-2-4:20
23、09+A11:2011 (E) 2 This Part 2-4 is to be used in conjunction with EN 60745-1:2009. 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 fro
24、m 101. Subclauses, tables and figures which are additional to those in IEC 60745-2-4 are prefixed “Z”. NOTE In this standard, the following print types are used: - requirements: in roman type; - test specifications: in italic type; - notes: in smaller roman type. Foreword to amendment A11 This docum
25、ent (EN 60745-2-4:2009/A11:2011) has been prepared by CLC/TC 116, “Safety of motor-operated electric tools“. The following dates are fixed: latest date by which the amendment has to be implementedat national level by publication of an identical national standard or by endorsement (dop) 2012-11-14 la
26、test date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2014-11-14 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or
27、 all such patent rights. _ Endorsement notice The text of the International Standard IEC 60745-2-4:2002 + A1:2008 was approved by CENELEC as a European Standard with agreed common modifications. BS EN 60745-2-4:2009+A11:2011 EN 60745-2-4:2009+A11:2011 (E) 3 HAND-HELD MOTOR-OPERATED ELECTRIC TOOLS SA
28、FETY Part 2-4: Particular requirements for sanders and polishersother than disk type1 ScopeThis clause of Part 1 is applicable, except as follows:1.1 Addition:Tools covered by this standard include but are not limited to belt sanders, reciprocatingsanders or polishers, orbital sanders or polishers,
29、and random orbit sanders or polishers.2 Normative referencesThis clause of Part 1 is applicable.3 DefinitionsThis clause of Part 1 is applicable, except as follows:Additional definitions:3.101sandertool intended to remove surface material using an abrasive medium3.102polishertool equipped with a dis
30、k or pad intended for polishing3.103belt sandersander equipped with an endless abrasive belt3.104orbital sander or polisher (oscillating sander or polisher)sander or polisher equipped with a plate, which performs an orbital oscillating motion parallelto the work surface3.105random orbit sander or po
31、lishersander or polisher equipped with a plate positioned eccentrically on the driving spindle whichcan rotate freely around its axis parallel to the work surfaceThis standard applies to sanders and polishers with the exception of all types of rotating disc-type sanders, which are covered by EN 6074
32、5-2-3. BS EN 60745-2-4:2009+A11:2011 EN 60745-2-4:2009+A11:2011 (E) 4 3.106reciprocating sander or polishersander or polisher equipped with a plate which performs a reciprocating motion parallel to thework surface4 General requirementsThis clause of Part 1 is applicable.5 General conditions for the
33、testsThis clause of Part 1 is applicable.3.Z101 mass of the tool mass of the complete tool as prepared for the test with all equipment needed for normal use, but without the cable 6 Environmental requirements This clause of Part 1 is applicable except as follows: 6.1.2.4 Modification: Sanders and po
34、lishers are suspended. The plate of the tool shall be horizontal. 6.1.2.5 Modification: Sanders and polishers are tested at no-load. 6.2 Vibration 6.2.4.2 Location of the measurement Addition: Figures Z101 and Z102 show the positions for different sanders and polishers. BS EN 60745-2-4:2009+A11:2011
35、 EN 60745-2-4:2009+A11:2011 (E) 5 6.2.6.3 Operating conditions Modification: Sanders and polishers are tested under load observing the conditions shown in Tables Z101 and Z102. 6.2.7.2 Declaration of the vibration total value Addition: The vibration total value ahof the handle with the highest emiss
36、ion and the uncertainty K shall be declared. Table Z101 - Operating conditions for sanders Orientation Sanding a horizontal steel plate of minimum 400 mm 400 mm 20 mm mounted on a bench Tool bit Recommended sanding paper for steel with a grain size of 180 Feed force Vertical force applied in additio
37、n to the weight of the tool: - 30 N 5 N, if the mass of the tool is less than 1,5 kg; - 50 N 5 N, if the mass of the tool is equal or greater than 1,5 kg; or the force necessary to obtain rated input, whichever is the lower. Pre-test requirements With a new sanding sheet carry out 1 min sanding befo
38、re starting measurementsTable Z102 - Operating conditions for polishers Orientation Polishing a horizontal steel plate of minimum 400 mm 400 mm 20 mm mounted on a bench Tool bit Polishing pad Feed force Vertical force applied in addition to the weight of the tool: - 30 N 5 N, if the mass of the tool
39、 is less than 1,5 kg; - 50 N 5 N, if the mass of the tool is equal or greater than 1,5 kg; or the force necessary to obtain rated input, whichever is the lower. BS EN 60745-2-4:2009+A11:2011 EN 60745-2-4:2009+A11:2011 (E) 6 7 ClassificationThis clause of Part 1 is applicable.8 Marking and instructio
40、nsThis clause of Part 1 is applicable, except as follows:8.1 AdditionFor belt sanders, the direction of rotation of the belt shall be indicated on the tool by an arrow,raised or sunk, or by any other means no less visible and indelible.9 Protection against access to live partsThis clause of Part 1 i
41、s 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.13 Leakage currentThis clause of Part 1 is applicable.8.12.2 Za) Addition: 101) for sanders: instructions how to deal with harmful/toxic d
42、usts arising from sanding e.g. lead painted surfaces, woods and metals. These instructions shall be proceeded by a warning that contact with or inhalation of these dusts can endanger the health of operator and bystanders. These instructions shall include the use of appropriate personal protective eq
43、uipment. BS EN 60745-2-4:2009+A11:2011 EN 60745-2-4:2009+A11:2011 (E) 7 14 Moisture resistanceThis clause of Part 1 is applicable.15 Electric strengthThis clause of Part 1 is applicable.16 Overload protection of transformers and associated circuitsThis clause of Part 1 is applicable.17 EnduranceThis
44、 clause of Part 1 is applicable, except as follows:17.2 Replacement of the fifth paragraph, except for belt sanders:Orbital sanders and polishers, random orbit sanders and polishers, and reciprocating sandersand polishers are operated while the platen, fitted with abrasive paper in reverse position
45、or apolishing bonnet as applicable, is resting under the weight of the sander on a steel plate. Theabrasive paper should be replaced as required to avoid direct contact between platen andsteel plate. These tools are only tested in the upright position where the platen is horizontal.18 Abnormal opera
46、tionThis clause of Part 1 is applicable.19 Mechanical hazardsThis clause of Part 1 is applicable.20 Mechanical strengthThis clause of Part 1 is applicable.21 Construction22 Internal wiringThis clause of Part 1 is applicable.23 ComponentsThis clause of Part 1 is applicable.This clause of Part 1 is ap
47、plicable except as follows: 21.Z1 Addition: Sanders for woodworking are considered to be tools where a considerable amount of dust is produced. BS EN 60745-2-4:2009+A11:2011 EN 60745-2-4:2009+A11:2011 (E) 8 24 Supply connection and external flexible cordsThis clause of Part 1 is applicable.25 Termin
48、als 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 applicable.28 Creepage distances, clearances and distances through insulationThis clause of Part 1 is applicable.29 Resistance
49、 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 1 is applicable.BS EN 60745-2-4:2009+A11:2011 EN 60745-2-4:2009+A11:2011 (E) 9 Figure Z101 - Position of transducers for sanders and polishers BS EN 60745-2-4:2009+A11:2011 EN 60745-2-4:2009+A11:2011 (E) 10 AnnexesThe annexes of Part 1 are applicable.BibliographyThe bibliography of Part 1 is applica
