1、BSI Standards PublicationBS EN 50434:2014Safety of household and similar appliancesParticular requirements for mains operated shredders and chippersBS EN 50434:2014National forewordThis British Standard is the UK implementation of EN 50434:2014. BSI, as a member of CENELEC, is obliged to publish BS
2、EN 50434 as a British Standard. However, attention is drawn to the fact that the UK committee voted against its approval as a European standard.The principal reason is that parts of EN 50434 differ from EN 13683 (the equivalent standard for integrally powered shedders/chippers created by CEN/TC144/W
3、G7). In particular, EN 50434 does not include require-ments where protection is provided by means of a tortuous path. These requirements are included in EN 13683, clauses 5.2.1.1 and 5.2.1.4.In addition, users should be aware in some instances the terminology used in EN 50434 differs from that used
4、in EN 13683.The UK participation in its preparation 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 p
5、rovisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 54323 4 ICS 65.060.70 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was pu
6、blished under the authority of the Standards Policy and Strategy Committee on 30 September 2014.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 50434 June 2014 ICS 65.060.70 English Version Safety of household and simi
7、lar appliances - Particularrequirements for mains operated shredders and chippers Scurit des appareils lectrodomestiques et analogues - Rgles particulires pour les broyeurs et dchiqueteurs fonctionnant sur le rseau Sicherheit elektrischer Gerte fr den Hausgebrauch undhnliche Zwecke - Besondere Anfor
8、derungen fr netzbetriebene Schredder, Hcksler und Zerkleinerer This European Standard was approved by CENELEC on 2014-03-31. 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 standar
9、d 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 CENELEC member. This European Standard exists in three official versions (English, French, German). A version in
10、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 versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia
11、, Cyprus, the Czech Republic, 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
12、and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by
13、any means reserved worldwide for CENELEC Members. Ref. No. EN 50434:2014 E - 2 - Contents Introduction . 6 1 Scope . 7 2 Normative references. 7 3 Terms and Definitions 8 4 General requirements 11 5 General conditions for the tests .11 6 Classification 11 7 Marking and instructions 11 8 Protection a
14、gainst access to live parts14 9 Starting of motor-operated appliances 14 10 Power input and current 15 11 Heating 15 12 Void 15 13 Leakage current and electric strength at operating temperature .15 14 Transient overvoltages 15 15 Moisture resistance15 16 Leakage current and electric strength .16 17
15、Overload protection of transformers and associated circuits 16 18 Endurance .16 19 Abnormal operations .16 20 Stability and mechanical hazards .16 21 Mechanical strength.32 22 Construction .32 23 Internal wiring .33 24 Components .33 25 Supply connection and external flexible cables and cords .33 26
16、 Terminals for external conductors .33 27 Provision for earthing 34 28 Screws and connections .34 29 Creepage distances, clearances and distances through insulation .34 30 Resistance to heat, fire and tracking .34 31 Resistance to rusting .34 32 Radiation, toxicity and similar hazards34 Annexes .35
17、Annex AA (normative) Safety signs 35 Annex BB (informative) Methods of combining round, square and slot shapes 50 mm complying with safety distance 20 mm .39 Annex CC (normative) Test enclosure 42 Annex DD (normative) Target panels - Specification for corrugated fibreboard .45 BS EN 50434:2014 EN 50
18、434:2014 (E)- 3 - Annex EE (informative) Safety instructions for shredders/chippers .47 Annex FF (normative) Noise test code Engineering method (Grade 2) .50 Annex GG (informative) Example of a material and construction fulfilling the requirements for an artificial surface .58 Annex ZZ (informative)
19、 Coverage of Essential Requirements of EU Directives 60 Bibliography 60 Figures Figure 1 - Examples of typical shredders/chippers . 10 Figure 2 - Distance from feed safety opening to shredding means . 22 Figure 3 - Examples of discharge chute distance requirements 25 Figure 4 - Thrown object test fi
20、xture - General layout . 28 Figure 5 - Kraft paper target panel placement 29 Figure AA.1 - “Read operators manual“ . 35 Figure AA.2 - “Danger - Rotating blades. Keep hands and feet out of openings while machine is running“ 35 Figure AA.3 - “Keep bystanders away“ . 36 Figure AA.4 - “Wear hearing prot
21、ection“ 36 Figure AA.5 - “Wear eye protection“ . 36 Figure AA.6 - “Wear eye and hearing protection“ 36 Figure AA.7 - “Switch off and remove plug from mains before adjusting, cleaning or if the cord is entangled or damaged“ 37 Figure AA.8 - “Wait until all machine components have completely stopped b
22、efore touching them“ 37 Figure AA.9 - “Do not use as a step“ . 38 Figures BB.1 - BB.3 - Opening sizes 45 mm 39 Figures BB.4 - BB.7 - Opening sizes 45 50 mm 40 Figure BB.8 - Opening sizes 50 mm, pinch point 26 mm 41 Figure CC.1 - Test enclosure walls and base (not to scale) 43 Figure CC.2 - Nail plan
23、 of test fixture base if 500 mm squares are used 44 Figure DD.1 - Test fixture for corrugated fibreboard penetration test . 46 Figure FF.1 - Microphone positions on the hemisphere (see Table FF.1) . 52 Figure FF.2 - Microphone position for measurement of emission sound pressure level and location of
24、 machine with respect to the microphone co-ordinate system 54 Figure GG.1 - Sketch of the measurement surface covered with an artificial surface (not to scale) 589 Tables Table 1 - Safety distances of shredding means from feed safety openings . 16 Table FF.1 - Co-ordinates of microphone positions 52
25、 Table FF.2 - Absorption coefficients . 54 BS EN 50434:2014 EN 50434:2014 (E)- 4 - Foreword This document (EN 50434:2014) has been prepared by WG 5, “Gardening appliances“, of the Technical Committee CENELEC TC 116, “Safety of motor-operated electric tools“. The following dates are fixed: latest dat
26、e by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-03-31 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2017-03-31 EN 50434:2014 includes the following significant tec
27、hnical changes: alignment to the European Machinery Directive 2006/42/EC; alignment to EN 60335-1:2012. This European Standard is to be used in conjunction with EN 60335-1:2012 “Household and similar electrical appliances Safety Part 1: General requirements”. When Part 1 is mentioned in this standar
28、d, it refers to EN 60335-1:2012. This European Standard supplements or modifies the corresponding clauses in Part 1, so as to convert that publication into the European Standard “Safety requirements for shredders/chippers”. Where a particular subclause of Part 1 is not mentioned in this standard, th
29、at subclause applies as far as is relevant. Where this standard states “addition”, “modification” or “replacement”, the relevant text in Part 1 is to be adapted accordingly. Compliance with the relevant clauses of Part 1 together with this European Standard provides one means of conforming to the sp
30、ecified essential health and safety requirements of the Directive. This European Standard follows the overall requirements of EN ISO 12100:2010. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association, and supports essential
31、 requirements of EU Directive. For the relationship with EU Directive 2006/42/EC, see informative Annex ZZ, which is an integral part of this document. Warning: Other requirements arising from other EU Directives can be applicable to the products falling within the scope of this European Standard. T
32、he following numbering system is used: subclauses that are numbered starting from 101 are additional to those in Part 1; additional annexes are lettered AA, BB, etc NOTE In this European Standard the following print types are used: - requirements proper: in roman type; - test specifications: in ital
33、ic type; - explanatory matter: in smaller roman type. Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the associated noun are also in bold. BS EN 50434:2014 EN 50434:2014 (E)- 5 - Introduction This document is a type C standard as stated
34、in EN ISO 12100:2010. The machinery concerned and the extent to which hazards, hazardous situations and events are covered is as indicated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this
35、 type C standard take precedence over the other standards, for machines which have been built and designed to the provisions of this type C standard. BS EN 50434:2014 EN 50434:2014 (E)- 6 - 1 Scope Replacement: This European Standard specifies safety requirements and their verification for the desig
36、n and construction of hand fed, shredders/chippers with integral electric motor, not exceeding 250 V single phase, with or without vacuum assisted collection which are designed to reduce organic material to smaller pieces and are used in a stationary position by an operator standing on the ground. T
37、his standard applies to shredders/chippers with feed intake openings or segments, in this standard referred to as feed safety openings that in total will fit into a square of 250 mm x 250 mm. NOTE For the requirements for the measurement of the square of 250 mm x 250 mm are given in clause 20.101.1
38、of this standard. In this European Standard shredders and chippers are referred to collectively as machine(s). This European Standard does not cover requirements for machines powered by combustion engines; NOTE 1 Combustion engine driven machines are covered by EN 13683. machines driven by an extern
39、al power source or by battery power; machines with powered discharge intended to broadcast material or load vehicles; machines with mechanically powered feed intake or attachments; wood chippers for agricultural, lawn and park and forestry use; NOTE 2 Wood chippers are covered by EN 13525. machines
40、powered from a 3 phase supply. This European Standard deals with all significant hazards presented by shredders/chippers when they are used as intended and under conditions of misuse which are reasonably foreseeable. EMC and environmental aspects, except noise, have not been considered in this Europ
41、ean Standard. This European Standard is not applicable to machines which are manufactured before the date of publication of this document by CENELEC. 2 Normative references This clause of Part 1 is applicable except as follows: Addition: EN ISO 354:2003, Acoustics Measurement of sound absorption in
42、a reverberation room (ISO 354:2003) EN ISO 3744:2010, Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010) BS EN 50434:2014 EN 50434:2014 (E)- 7 - EN ISO 4
43、871:2009, Acoustics Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 11201:2010, Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions in an essentia
44、lly free field over a reflecting plane with negligible environmental corrections (ISO 11201:2010) EN ISO 12100:2010, Safety of machinery General principles for design Risk assessment and risk reduction (ISO 12100:2010) EN ISO 13849-1:2008, Safety of machinery Safety-related parts of control systems
45、Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13857:2008, Safety of machinery Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008) 3 Terms and definitions This clause of Part 1 is applicable except as follows: 3.1.9 Replacement: 3.1.9 nor
46、mal operation any use of the machine which is specified by the manufacturer, and which is consistent with such activities as reducing organic material, starting, and stopping Addition: 3.101 discharge chute extension of the opening through which the shredded or chipped material is discharged 3.102 d
47、ischarge zone any space wherein material is intended to be ejected from the machine 3.103 feed safety opening opening through which material is passed located at the relevant safety distance from the shredding means. This may be the same as the feed intake opening in Clause 3.104 or at some point be
48、tween the feed intake opening and the shredding means 3.104 feed intake opening opening through which material is inserted to be fed to the cutting mechanism. A feed intake opening can become feed safety opening(s) if the relevant safety distance from the shredding means is met 3.105 normal use norm
49、al operation, plus routine maintenance, servicing, cleaning, transporting, attaching or removing accessories, and making adjustments as determined by the manufacturers instructions 3.106 material discharge deflector fixed or movable component designed to direct the flow of processed material discharging from the machine BS EN 50434:2014 EN 50434:2014 (E)- 8 - 3.107 maximum operating speed highest power source speed obtainable with the shredding means engaged 3.108 operator presence control control designe
