1、June 2009DEUTSCHE NORM English price group 12No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 53.100!$X(A“1530530www.di
2、n.deDDIN EN ISO 3457Earth-moving machinery Guards Definitions and requirements (ISO 3457:2003)English version of DIN EN ISO 3457:2009-06Erdbaumaschinen Schutzeinrichtungen Begriffe und Anforderungen (ISO 3457:2003)Englische Fassung DIN EN ISO 3457:2009-06SupersedesDIN EN ISO 3457:2003-12See start of
3、 validitywww.beuth.deDocument comprises 21 pagesDIN EN ISO 3457:2009-06 2 Start of validity This standard takes effect on 1 June 2009. DIN EN ISO 3457:2003-12 may be used in parallel until 28 December 2009. National foreword This standard includes safety requirements. This standard has been prepared
4、 by Technical Committee ISO/TC 127 “Earth-moving machinery” in collaboration with Technical Committee CEN/TC 151 “Construction equipment and building material machines Safety” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Maschinenbau (M
5、echanical Engineering Standards Committee), Section Bau- und Baustoffmaschinen. Representatives of manufacturers and users of earth-moving machinery, and of the employers liability insurance associations contributed to this standard. Amendment of the European Machinery Directive has made it necessar
6、y to review the previously valid standard, EN ISO 3457:2003, in terms of the essential requirements of the new European Machinery Directive, 2006/42/EC. This standard contains specifications meeting the essential requirements set out in Annex I of the “Machinery Directive”, Directive 98/37/EC (valid
7、 until 28 December 2009), and the “revised Machinery Directive”, Directive 2006/42/EC, which takes effect on 29 December 2009, and which apply to earth-moving machinery that is either first placed on the market or commissioned within the EEA. This standard serves to facilitate proof of compliance wi
8、th the essential requirements of the directives. Once this standard is cited in the Official Journal of the European Union, it is deemed a “harmonized” standard and thus, a manufacturer applying this standard may assume compliance with the requirements of the Machinery Directive (“presumption of con
9、formity”). The International Standards referred to in clause 2 and in the bibliography of this document have been published as the corresponding DIN EN ISO Standards with the same number, except for those below, which correspond as follows: ISO 9244 no national standard available ISO 12508 no nation
10、al standard available ISO 13852 similar to DIN EN ISO 13857 ISO 13854 DIN EN 349 This standard makes reference to documents which were valid as of the publication of the International Standard. Since then, the International Standards ISO 3411-1995, ISO 6165:1997 and ISO 9244:1995 have been withdrawn
11、 and replaced by ISO 3411:2007, Earth-moving machinery Physical dimensions of operators and minimum operator space envelope, ISO 6165:2006, Earth-moving machinery Basic types Identification and terms and definitions and ISO 9244:2008, Earth-moving machinery Machine safety labels General principles.
12、DIN EN ISO 3457:2009-06 3 Amendments This standard differs from DIN EN ISO 3457:2003-12 as follows: a) Annex ZA (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC” has been updated. b) Annex ZB (informative) “Relationship between this E
13、uropean Standard and the Essential Requirements of EU Directive 2006/42/EC” has been added. Previous editions DIN EN ISO 3457: 1995-04, 2003-12 DIN EN ISO 3457:2009-06 4 National Annex NA (informative) Bibliography DIN EN 349, Safety of machinery Minimum gaps to avoid crushing of parts of the human
14、body DIN EN ISO 13857, Safety of machinery Safety distances to prevent hazard zones being reached by upper and lower limbs EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3457 September 2008 ICS 53.100 Supersedes EN ISO 3457:2003English Version Earth-moving machinery Guards Definitions and
15、requirements (ISO 3457:2003) Engins de terrassement Protecteurs Dfinitions et exigences (ISO 3457:2003) Erdbaumaschinen Schutzeinrichtungen Begriffe und Anforderungen (ISO 3457:2003) This European Standard was approved by CEN on 25 August 2008. CEN members are bound to comply with the CEN/CENELEC In
16、ternal Regulations which stipulate the conditions for giving this EuropeanStandard 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 Management Centre or to any CEN me
17、mber. This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions. CEN membe
18、rs are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Swi
19、tzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref.
20、No. EN ISO 3457:2008: EContents Page Foreword. 3 Introduction 4 1 Scope 5 2 Normative references . 5 3 Terms and definitions. 5 4 General requirements . 6 5 Barrier guards . 7 6 Fenders 7 7 Fan guards. 7 8 Thermal guards . 8 9 Hose guards 8 10 Distance guarding10 Bibliography 15 DIN EN ISO 3457:2009
21、-06 EN ISO 3457:2008 (E) 2Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC 16 Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC .17 Foreword The text o
22、f ISO 3457:2003 has been prepared by Technical Committee ISO/TC 127 “Earth-moving machinery” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 3457:2008 by Technical Committee CEN/TC 151 “Construction equipment and building material machines Safety” the se
23、cretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. Attention is dr
24、awn to the possibility that some of the elements 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 document supersedes EN ISO 3457:2003. This document has been prepared under a mandate given to C
25、EN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document. According to the CEN/CENELEC Internal Regulations, the n
26、ational standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norwa
27、y, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 3457:2003 has been approved by CEN as a EN ISO 3457:2008 without any modification. DIN EN ISO 3457:2009-06 EN ISO 3457:2008 (E) 3Introduction This International Sta
28、ndard provides performance requirements for guards and other means of protecting personnel from unintentional contact with common mechanical, fluid or thermal hazards on earthmoving machinery during normal machine operation and routine maintenance. Relationships between the distance separating a gua
29、rd from a hazardous component and the guard opening size based on anthropometric data are included. Some factors having a significant effect upon personnel protection, such as operator and service personnel training, experience and careful practice, are outside the scope of this International Standa
30、rd. Deviations from these requirements to allow technological advances in machine systems and designs are permissible. In complying with this International Standard, the following three safety principles are to be considered, in the order given, based on feasibility: a) eliminate potential hazards b
31、y machine design; b) guard against contact with sources of potential safety hazards if elimination by design is not feasible; c) warn of potential safety hazards where neither a) nor b) is feasible. DIN EN ISO 3457:2009-06 EN ISO 3457:2008 (E) 41 Scope This International Standard defines principal t
32、erms and specifies requirements for, and characteristics of, guards and other means of protecting personnel from mechanical, fluid or thermal hazards associated with the operation and routine maintenance of earth-moving machinery as defined in ISO 6165, when used as intended by the manufacturer. 2 N
33、ormative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2867, Earth-moving machin
34、ery Access systems ISO 3411, Earth-moving machinery Human physical dimensions of operators and minimum operator space envelope ISO 6165, Earth-moving machinery Basic types Vocabulary ISO 6682, Earth-moving machinery Zones of comfort and reach for controls ISO 9244, Earth-moving machinery Safety sign
35、s and hazard pictorials General principles ISO 12508, Earth-moving machinery Operator station and maintenance areas Bluntness of edges 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 guard protective device, alone or combined with other parts
36、 of the machine, designed and fitted to minimize the possibility of contact with a potentially hazardous machine component 3.1.1 barrier guard guard that restricts the movement of a persons body or a part of it, in order to avoid its contact with a machine component or exposure to other, similar haz
37、ards EXAMPLE Rail, frame, cover or enclosure. DIN EN ISO 3457:2009-06 EN ISO 3457:2008 (E) 53.1.2 fender guard partially covering the wheels or tracks of a machine which restricts material that may be thrown by the wheels or tracks, and which can also be used to limit the operators contact with movi
38、ng parts 3.1.3 fan guard structure covering the engine cooling fan to protect against inadvertent contact with the rotating fan 3.1.4 thermal guard guard that protects persons from contact with hot parts of the machine, and which can also be used to provide a heat barrier between the hot part and fl
39、ammable materials 3.1.5 hose guard guard that provides protection from potential harmful fluid spray in the event of a hose failure 3.2 distance guarding means of providing protection by which the possibility of inadvertent contact with a hazardous component is minimized by the combination of the gu
40、ard configuration (including openings) and the distance (safety distance) between the guard and the component, and, additionally, separation distances (minimum gap) of crush points in relation to body parts 3.3 routine maintenance action recommended by the manufacturer to be performed daily to maint
41、ain proper performance of a machine EXAMPLE Lubrication, refueling, adjustments, preventive maintenance, cleaning and inspections. 4 General requirements 4.1 If a significant risk of injury exists from moving parts, hot parts or parts containing fluid, such hazards shall be addressed by design, by g
42、uarding, by locating beyond safety distances or by warning. Where it is necessary for machine components to be exposed in order for them to perform their intended function, guarding shall be provided to the extent permitted by proper operation or use. When guarding cannot eliminate the hazard associ
43、ated with operating conditions as specified by the machine manufacturer, appropriate safety warnings in accordance with ISO 9244 shall be applied. 4.2 Guards shall be attached to the machine with common fasteners or other effective means. Access doors and guards which need to be opened for routine o
44、r daily maintenance, inspection or cleaning shall be easy to open and close, shall remain attached by a hinge, tether, or other suitable means, shall include means to keep them closed and, when required, open, and, if they need to be removed and exceed 20 kg, shall be provided with hand holds or lif
45、t points or both. 4.3 Guards which need to be opened for maintenance shall be free of sharp edges and corners (see ISO 12508) and projections, and have sufficient strength under expected climatic and operational conditions for their intended use. 4.4 Each guard (excluding hose guards) shall be suffi
46、ciently rigid to avoid deflection into the hazardous component and to avoid detrimental permanent deformation under the following loads applied by means of a 125 mm diameter disc: DIN EN ISO 3457:2009-06 EN ISO 3457:2008 (E) 6a) if a person can touch the guard 250 N applied at possible points of con
47、tact; b) if a person can fall or lean against the guard 500 N applied at possible points of contact; c) if the guard also serves as a step or platform of the access system 2 000 N applied at any location on the surface (see ISO 2867). 4.5 Rotating shafts that constitute a hazard shall be guarded eit
48、her by barrier or distance guarding or by warning. 5 Barrier guards 5.1 The safety distance from a hazardous component to a barrier guard is measured from the nearest location a person can occupy in proximity to the component. See Clause 10. 5.2 Barrier guards that cause restricted operator visibili
49、ty during operation, such as side guarding on skid steer loaders, shall have opening dimensions not greater than 40 mm by 80 mm or an equivalent opening area. 6 Fenders 6.1 Fenders shall be provided on machines without a cab if there is risk of injury to the operator from inadvertent contact with moving wheels or tracks. The manufacturer shall be able to substantiate the choice of distances for determining the minimization of risk. 6.2 Fenders shall be provided if there is risk of injury to the operator or of d
