1、BSI Standards PublicationBS EN 50632-2-6:2015Electric motor-operatedtools Dust measurementprocedurePart 2-6: Particular requirements forhammersBS EN 50632-2-6:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation ofEN 50632-2-6:2015.The UK participation in its preparat
2、ion was entrusted to Technical Committee CPL/116, Safety of motor-operated electric 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 f
3、or its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 87471 0 ICS 25.140.20 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Pol
4、icy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 50632-2-6:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50632-2-6 September 2015 ICS 25.140.20 English Version Electric motor-operated tools - dust measurement p
5、rocedure - Part 2-6: Particular requirements for hammers To be completed Motorbetriebene Elektrowerkzeuge - Staubmessverfahren -Teil 2-6: Besondere Anforderungen fr Hmmer This European Standard was approved by CENELEC on 2015-08-17. CENELEC members are bound to comply with the CEN/CENELEC Internal R
6、egulations 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 CEN-CENELEC Management Centre or to any CENELE
7、C 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 CEN-CENELEC Management Centre has the same status as the official v
8、ersions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
9、 the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Man
10、agement Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50632-2-6:2015 EBS EN 50632-2-6:2015Contents European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions
11、 4 4 Test procedure . 4 5 Instrumentation 7 6 Information to be reported 7 Figures Figure 101 A-support 8 Figure 102 Working position with rebar in concrete block 9 Tables Table 101 Operating conditions for rotary hammers 5 Table 102 Concrete formulation (per cubic metre) . 5 Table 103 Drilling spec
12、ification . 6 Table 104 Operating conditions for hammers without rotary action . 7 EN 50632-2-6:2015 (E)BS EN 50632-2-6:2015European foreword This document (EN 50632-2-6:2015) was prepared by CLC/TC 116 “Safety of motor-operated electric tools”. The following dates are fixed: latest date by which th
13、is document hasto be implemented at national level bypublication of an identical nationalstandard or by endorsement(dop) 2016-08-17 latest date by which the nationalstandards conflicting with thisdocument have to be withdrawn(dow) 2017-08-17 Attention is drawn to the possibility that some of the ele
14、ments of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This European Standard is divided into three parts: Part 1: General requirements for the dust measurement which are common to electric motor-ope
15、rated tools (for the purpose of this standard referred to simply as tools); Part 2 or 3: Requirements for the dust measurement for particular types of tools, which either supplement or modify the requirements given in Part 1 to account for the particular characteristics of these specific tools. This
16、 Part 2 is to be used in conjunction with EN 50632-1:2015. This Part 2 supplements or modifies the corresponding clauses in EN 50632-1:2015. This Part 2 was developed to set out requirements for the measurement of the concentration for inhalable and respirable dust emitted by hammers. Where a partic
17、ular subclause of Part 1 is not mentioned in this Part 2, that subclause applies as far as reasonable. When this standard states “addition“, “modification“ or “replacement“, the relevant text in Part 1 is to be adapted accordingly. Subclauses, notes, tables and figures which are additional to those
18、in Part 1 are numbered starting from 101. The following print types are used: - requirements; in roman type - test specifications: in italic type; - notes: in smaller roman type. The terms defined in Clause 3 are printed in bold typeface.EN 50632-2-6:2015 (E)BS EN 50632-2-6:20151 Scope This clause o
19、f Part 1 is applicable except as follows: Addition: This part of EN 50632 applies to hammers. 2 Normative references This clause of Part 1 is applicable except as follows: Addition: EN 10080:2005, Steel for the reinforcement of concrete Weldable reinforcing steel General 3 Terms and definitions This
20、 clause of Part 1 is applicable except as follows: Addition: 3.101 percussion hammer tool equipped with a built-in percussion system which is not influenced by the operator 3.102 rotary hammer tool equipped with a built-in percussion system which is not influenced by the operator and has the capabil
21、ity of rotational motion 4 Test procedure This clause of Part 1 is applicable except as follows: 4.3 Operating conditions Addition: Rotary hammers are tested under load observing the conditions shown in Table 101. EN 50632-2-6:2015 (E)BS EN 50632-2-6:2015Table 101 Operating conditions for rotary ham
22、mers Material and set-up Concrete block without a reinforcement having the formulation specified in Table 102 and having the minimum dimensions 500 mm x 500 mm and 200 mm in height. After the 28 days as specified in Table 102, the concrete block shall be stored for another three weeks under dry cond
23、itions. The block is placed on a A-support, see Figure 101, with 15 inclination with the lower workpiece support being (1 000 50) mm above the floor. Orientation and operation Drilling holes into the concrete block rectangular to its surface of the 500 mm x 500 mm area. The holes shall have a depth
24、in accordance with Table 103. The distance between the holes and the distance of the holes to the edge of the block shall be large enough so that the dust collection device of the hammer does not cover any adjacent holes or overhang the edge of the block. Tool bit/settings New drill bit as specified
25、 by the manufacturer for drilling into concrete at the beginning of each of the three tests. Speed setting devices, if any, shall be adjusted to the setting specified for the drill bit size and for drilling into concrete. Feed force The feed force applied to the tool shall be sufficient to ensure st
26、able operation with good performance. Test During each test cycle of 10 min, a number of holes as specified in Table 103 is performed equally distributed over the test cycle. If the above cannot be achieved within 10 min, the time is extended to allow the required number of holes to be drilled. Tabl
27、e 102 Concrete formulation (per cubic metre) Cement Water Aggregate b1 844 kg Particle size Fraction % 330 kg a183 l a0 to 2 mm 38 3 0 to 8 mm 50 5 0 to 16 mm 80 5 0 to 32 mm 100 Compressive strength after 28 days to be 40 N/mm2. aThe water/cement mass ratio shall be 0,55 0,02 (the mass tolerance of
28、 cement and water is + 10 % to enable the concrete manufacturer to ensure compressive strength with local cement). bVery hard aggregates as flint or granite and very soft aggregates as limestone shall not be used. EN 50632-2-6:2015 (E)BS EN 50632-2-6:2015Table 103 Drilling specification Tool mass kg
29、 Diameter of drill bit mm Number of holes per test cycle Depth of hole mm 3,5 10 24 50 3,5 5 16 24 5 7 20 12 100 7 10 25 12 10 18 32 12 18 40 12 EN 50632-2-6:2015 (E)BS EN 50632-2-6:2015Percussion hammers are tested under load observing the conditions shown in Table 104. Table 104 Operating conditio
30、ns for hammers without rotary action Material and set-up Reinforced concrete block(s) having the formulation specified in Table 102 and having the minimum dimensions 500 mm x 800 mm and 200 mm in height. The concrete block shall be reinforced with 2 layers of 6 rebars each, 12 mm, B500B regarding to
31、 EN 10080:2005 longitudinally (direction 800 mm). The distance from rebar to rebar and rebar to block edge shall be (70 30) mm. After the 28 days as specified in Table 102, the concrete block shall be stored for another three weeks under dry conditions. For percussion hammers with a mass less than o
32、r equal to 5 kg, the concrete block(s) is (are) placed on a A-support, see Figure 101, with 15 inclination, the lower workpiece support being (1 000 50) mm above the floor. To prevent damage to the A-support, additional supporting material such as plywood or fibreboard may be used between the block(
33、s) and the A-support. For percussion hammers with a mass above 5 kg, a sufficient number of concrete blocks is placed side by side on the floor. The blocks may be supported by pallets or the like. Orientation and operation Chisel on concrete blocks. For percussion hammers with a mass less than or eq
34、ual to 5 kg, the work starts on either side of the block, working from top to bottom of the block. For percussion hammers with a mass above 5 kg, chisel on concrete blocks vertically downwards. The concrete block shall be destroyed in length direction as shown in Figure 102. The work process is fini
35、shed when all rebars have been separated. Tool bit/settings New or re-sharpened pointed chisel as specified by the manufacturer for chiselling concrete. Speed setting devices, if any, shall be adjusted to the setting specified by the manufacturer for chiselling concrete. Feed force The forces applie
36、d to the tool shall be sufficient to chisel with good performance without overloading the tool. Test One test consists of four test cycles of 10 min working time and 5 min rest time each. For percussion hammers with a mass of less than or equal to 5 kg, each test cycle is started on a new half of a
37、block. For percussion hammers with a mass above 5 kg, the work is started on the first block, and after destroying one block, is continued on a new block. The mass is measured without accessories and flexible cable or cord, but including an auxiliary handle, if provided with the tool. 5 Instrumentat
38、ion This clause of Part 1 is applicable. 6 Information to be reported This clause of Part 1 is applicable except as follows: k) Modification:The mean value for the concentration of the respirable dust is also required. EN 50632-2-6:2015 (E)BS EN 50632-2-6:2015p) Modification:Information about the ex
39、tension of the cycle time in case drilling of the required number of holes could not be performed within the cycle time. Dimensions in millimetres Key A workpiece B additional supporting material Figure 101 A-support EN 50632-2-6:2015 (E)BS EN 50632-2-6:2015Figure 102 Working position with rebar in
40、concrete block EN 50632-2-6:2015 (E)This page deliberately left blankEN 50632-2-6:2015 (E)BS EN 50632-2-6:2015This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated b
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