1、BSI Standards PublicationBS EN 50632-2-22:2015Electric motor-operatedtools Dust measurementprocedurePart 2-22: Particular requirements for cut-off machines and wall chasersBS EN 50632-2-22:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN50632-2-22:2015.The U
2、K participation in its preparation was entrusted to TechnicalCommittee CPL/116, Safety of motor-operated electric tools.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contr
3、act. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 87169 6ICS 25.140.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the author
4、ity of theStandards Policy and Strategy Committee on 30 September 2015.Amendments issued since publicationDate Text affectedBS EN 50632-2-22:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50632-2-22 August 2015 ICS 25.140.20 English Version Electric motor-operated tools - Dust measurement
5、procedure - Part 2-22: Particular requirements for cut-off machines and wall chasers Outils lectriques moteur - Procdure de mesure de la poussire - Partie 2-22: Exigences particulires pour les trononneuses Motorbetriebene Elektrowerkzeuge - Staubmessverfahren -Teil 2-22: Besondere Anforderungen fr T
6、rennschleifmaschinen und Wandschlitzfrsen This European Standard was approved by CENELEC on 2015-08-03. 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 alterat
7、ion.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 CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language mad
8、e 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 versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech R
9、epublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdo
10、m. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved w
11、orldwide for CENELEC Members. Ref. No. EN 50632-2-22:2015 EBS EN 50632-2-22:2015EN 50632-2-22:2015 (E) 2 Contents European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions 4 4 Test procedure . 4 5 Instrumentation 7 6 Information to be reported 7 Figures Figure 101 Test set
12、-up for cut-off machines. 7 Figure 102 Test set-up for wall chasers . 7 Figure 103 A-support 8 Tables Table 101 Operating conditions for cut-off machines . 5 Table 102 Operating conditions for wall chasers 6 BS EN 50632-2-22:2015EN 50632-2-22:2015 (E) 3 European foreword This document (EN 50632-2-22
13、:2015) has been prepared by CLC/TC 116 “Safety of motor-operated electric tools”. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-08-03 latest date by which the nat
14、ional standards conflicting with this document have to be withdrawn (dow) 2017-08-03 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 all such patent rights. T
15、his European Standard is divided into three parts: Part 1: General requirements for the dust measurement which are common to electric motor-operated 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,
16、 which either supplement or modify the requirements given in Part 1 to account for the particular characteristics of these specific tools. This 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
17、developed to set out requirements for the measurement of the concentration for inhalable and respirable dust emitted by cut-off machines and wall chasers. Where a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies as far as reasonable. When this standard states “a
18、ddition”, “modification” or “replacement”, the relevant text in Part 1 is to be adapted accordingly. Subclauses, tables and figures which are additional to those in Part 1 are numbered starting from 101. The following print types are used: - requirements; in roman type - test specifications: in ital
19、ic type; - notes: in smaller roman type. The terms defined in Clause 3 are printed in bold typeface. BS EN 50632-2-22:2015EN 50632-2-22:2015 (E) 4 1 Scope This clause of Part 1 is applicable except as follows: Addition: This part of EN 50632 applies to cut-off machines and wall chasers. 2 Normative
20、references This clause of Part 1 is applicable except as follows: Addition: EN 1339:2003, Concrete paving flags - Requirements and test methods 3 Terms and definitions This clause of Part 1 is applicable except as follows: 3.101 cut-off machine tool driving a rotating spindle, with a guide plate or
21、guide roller or similar means, on which a bonded reinforced wheel or diamond wheel is mounted and used for peripheral grinding 3.102 wall chaser tool driving a rotating spindle, with a guide plate or guide roller or similar means, on which one or more diamond wheels are mounted and used for non-thro
22、ugh cutting operations by peripheral grinding 4 Test procedure This clause of Part 1 is applicable except as follows: 4.3 Operating conditions Addition: Cut-off machines intended to cut materials such as concrete, brick and masonry are tested under load observing the conditions shown in Table 101. B
23、S EN 50632-2-22:2015EN 50632-2-22:2015 (E) 5 Table 101 Operating conditions for cut-off machines Material and set-up Concrete slabs with minimum dimensions of 400 mm x 400 mm, maximum dimensions of 600 mm x 600 mm and a thickness of (50 5) mm according to EN 1339:2003. The concrete slabs shall be st
24、ored for at least six weeks with the last three weeks under dry conditions. During storing, the distance between the slabs shall be at least one slab thickness. The slabs shall have the following specifications in accordance with the following clauses of EN 1339:2003: Class 3 (5.3.3.2), Class 4 (5.3
25、.4.2), Class 70 (5.3.6.2) for 400 mm x 400 mm, Class 45 (5.3.6.2) for 400 mm x 600 mm and 600 mm x 600 mm. Concrete slabs are placed horizontally on a table with a suitable working height (approximately 900 mm). The slabs are arranged without any gaps as to achieve a plane area with a total length o
26、f approximately 2,4 m. See Figure 101. Orientation and operation Make slots in the concrete slab with a depth as follows: rated capacity 180 mm: 20 mm; rated capacity 180 mm: 40 mm. The slots are made along the approximate 2,4 m length. The distance between the slots shall be large enough so that th
27、e guard does not cover the previous cutting zone. For each slot, the tool shall enter the slabs from the side without plunging. The cut stops inside the material after 2,3 m. During cutting the entire surface of the guide plate or all guide rollers shall be in contact with the concrete slab. The too
28、l shall be switched off at the end of the cut while it is in contact with the material. Tool bit/settings New or re-sharpened diamond wheel as specified by the manufacturer for cutting concrete at the beginning of each of the three tests. Speed setting devices, if any, shall be adjusted to the setti
29、ng specified for cutting-off concrete. Feed force The forces applied to the tool shall be to achieve an average power consumption during the test of 70 % - 90 % of the rated input of the tool. Test During the entire test a minimum total length of 18,4 m of cutting (8 cuts) shall be performed for too
30、ls with a rated capacity 180 mm and a minimum total length of 13,8 m of cutting (6 cuts) shall be performed for tools with a rated capacity 180 mm. The rest time of each test cycle may be used for re-sharpening the wheel, if necessary. This shall be done outside the test room. BS EN 50632-2-22:2015E
31、N 50632-2-22:2015 (E) 6 Wall chasers are tested under load observing the conditions shown in Table 102. Table 102 Operating conditions for wall chasers Material and set-up Blocks from calcium silicate with a density between 1 800 kg/m3and 2 000 kg/m3with a thickness of at least 100 mm and a compress
32、ive strength of at least 20 N/mm2. NOTE Typical material are blocks from calcium silicate made by UNIKA Kalksandsteinwerk Nordbayern GmbH and Co. KG., Breitengbach, Germany. 1)The material shall be stored in a dry environment for at least 3 weeks prior to testing. During that time, the blocks shall
33、be stored with a distance of at least one block thickness between each of them. Blocks are placed on a A-support, see Figure 103, with 15 inclination with the lower workpiece support being (500 50) mm above the floor. The blocks are arranged without gaps to achieve an area of approximately 4 m lengt
34、h and 1,3 m height, see Figure 102. Orientation and operation Make slots in the blocks, the tool being set to 90 % of the maximum depth of cut. The distance between the two slots shall be either equal to the cutting depth of the slots or be the maximum possible distance, whichever is less. The dista
35、nce between the slots shall be large enough so that the guard does not cover the previous cutting zone. For each slot, the tool shall enter the blocks from the side/top without plunging. The cut stops inside the material. 2/3 of the total length of cuts shall be done in horizontal direction (length
36、of slot 2,4 m), 1/3 of the total length cuts in vertical direction downwards (length of channel 1,2 m), see Figure 102. During cutting the entire surface of the guide plate or all guide rollers shall be in contact with the blocks. The tool shall be switched off at the end of the cut while it is in c
37、ontact with the material. Tool bit/settings New or re-sharpened diamond wheel as specified by the manufacturer for cutting calcium silicate at the beginning of each of the three tests. Speed setting devices, if any, shall be adjusted to the setting specified for cutting calcium silicate. Feed force
38、The forces applied to the tool shall be to achieve an average power consumption during the test of 70 % - 90 % of the rated input of the tool. Test During the entire test, a total length of slots to be cut shall be 40 m for tools with a maximum depth of cut 30 mm, and a total length of slots to be c
39、ut shall be 35 m for tools with a maximum depth of cut 30 mm. The rest time of the test cycles may be used for re-sharpening the wheels, if necessary. This shall be done outside the test room. 1) This information is given for the convenience of users of this European Standard and does not constitute
40、 an endorsement by CENELEC of the product named. BS EN 50632-2-22:2015EN 50632-2-22:2015 (E) 7 5 Instrumentation 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 respi
41、rable dust is also required. Dimensions in millimetres Figure 101 Test set-up for cut-off machines Dimensions in millimetres Key A A-support B workpiece (calcium silicate blocks) Figure 102 Test set-up for wall chasers BS EN 50632-2-22:2015EN 50632-2-22:2015 (E) 8 Dimensions in millimetres Key A wor
42、kpiece Figure 103 A-support This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are publishe
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