1、April 2012 Translation by DIN-Sprachendienst.English price group 15No part of this translation 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
2、53.100!$R5“1884718www.din.deDDIN EN ISO 3450Earth-moving machinery Wheeled or high-speed rubber-tracked machines Performance requirements and test procedures for brake systems(ISO 3450:2011)English translation of DIN EN ISO 3450:2012-04Erdbaumaschinen Maschinen auf Rdern oder schnelllaufende gummigl
3、eiskettenbereifte Maschinen Anforderungen und Prfungen fr Bremssysteme (ISO 3450:2011)Englische bersetzung von DIN EN ISO 3450:2012-04Engins de terrassement Engins sur pneumatiques ou sur chenilles caoutchouc grande vitesse Exigences de performance et modes opratoires dessai des systmes de freinage(
4、ISO 3450:2011)Traduction anglaise de DIN EN ISO 3450:2012-04SupersedesDIN EN ISO 3450:2009-06www.beuth.deDocument comprises 30 pagesIn case of doubt, the German-language original shall be considered authoritative.03.12 DIN EN ISO 3450:2012-04 2 A comma is used as the decimal marker. National forewor
5、d This standard includes safety requirements. This standard has been prepared 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 Ge
6、rman body involved in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Working Committee NA 060-13-01 AA Erdbau-/ Straenbaumaschinen of Section Bau- und Baustoffmaschinen. Representatives of manufacturers and users of earth-moving machinery, and of t
7、he employers liability insurance associations contributed to this standard. This standard contains specifications meeting the essential requirements set out in Annex I of the “Machinery Directive”, Directive 2006/42/EC, and which apply to machines that are either first placed on the market or commis
8、sioned within the EEA. This standard serves to facilitate proof of compliance with the essential requirements of that Directive. 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
9、compliance with the requirements of the Machinery Directive (“presumption of conformity”). The International Standards adopted as European Standards and referred to in Clause 2 and in the bibliography have been published as DIN EN ISO Standards with the same number. For the International Standards a
10、nd documents referred to in this standard there are no national standards available unless they have been published as DIN ISO Standards with the same number Amendments This standard differs from DIN EN ISO 3450:2009-06 as follows: a) Clause 2 “Normative references” has been updated; b) Clause 3 “Te
11、rms and definitions” has been revised and new definitions have been added; c) an informative Annex A “Braking for purpose-built underground mining machines” has been included; d) Clauses 4, 5 and 6 have been completely revised in respect of the requirements for and the testing of brake systems for e
12、arth-moving machinery; e) an informative Annex B “Brake slope capability calculation method” has been included; f) an informative Annex ZA “Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC” has been included. Previous editions DIN EN ISO 3450: 199
13、6-07, 2009-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3450 November 2011 ICS 53.100 Supersedes EN ISO 3450:2008English Version Earth-moving machinery - Wheeled or high-speed rubber-tracked machines - Performance requirements and test procedures for brake systems (ISO 3450:2011) Engi
14、ns de terrassement - Engins sur pneumatiques ou sur chenilles caoutchouc grande vitesse - Exigences de performance et modes opratoires dessai des systmes de freinage (ISO 3450:2011) Erdbaumaschinen - Maschinen auf Rdern oder schnelllaufende gummigleiskettenbereifte Maschinen - Anforderungen und Prfu
15、ngen fr Bremssysteme (ISO 3450:2011) This European Standard was approved by CEN on 15 October 2011. CEN 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-
16、to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by transl
17、ation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland
18、, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMI
19、TEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3450:2011: EAnnex ZA (informative) Relationship between this European Standard and the Essential Requireme
20、nts of EU Directive 2006/42/EC . Contents PageForeword .1 Scope 2 Normative references .3 Terms and definitions .4 General requirements .4.1 Required brake systems 4.2 Common components 4.3 Brake control systems .4.4 Service brake systems .4.5 Secondary brake systems .4.6 Parking brake systems 4.7 H
21、ydrostatic brake systems .4.8 Systems with combined brake and steer function .4.9 Performance and warning devices for stored energy sources .4.10 Braking systems with electronic MCS .4.11 Machines designed to tow trailers 4.12 Machine instructions and labels .4.13 Estimating brake slope capability .
22、135 Test conditions .135.1 Overall test parameters .135.2 General test conditions .135.3 Test course 145.4 Machine test configuration .146 Performance tests .156.1 General .156.2 Braking system controls .156.3 Stored energy sources .156.4 Holding performance 166.5 Stopping performance .176.6 Alterna
23、tive testing .197 Test report .19Annex A (informative) Braking for purpose-built underground mining machines .Annex B (informative) Brake slope capability calculation method .26Bibliography .28EN ISO 3450:2011 (E) DINEN ISO 3450:2012-042344588991010101011111112122127Foreword This document (EN ISO 34
24、50:2011) has been prepared by Technical Committee ISO/TC 127 “Earth-moving machinery“ in collaboration with Technical Committee CEN/TC 151 “Construction equipment and building material machines - Safety” the secretariat of which is held by DIN. This European Standard shall be given the status of a n
25、ational standard, either by publication of an identical text or by endorsement, at the latest by May 2012, and conflicting national standards shall be withdrawn at the latest by May 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ri
26、ghts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 3450:2008. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential req
27、uirements of EU Directive(s). For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Au
28、stria, Belgium, Bulgaria, Croatia, 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, Switzerland and the United Kingdom
29、. Endorsement notice The text of ISO 3450:2011 has been approved by CEN as a EN ISO 3450:2011 without any modification. EN ISO 3450:2011 (E) DINEN ISO 3450:2012-043 1 ScopeThis International Standard specifies minimum performance requirements and test procedures for the service, secondary and parkin
30、g brake systems of wheeled and high-speed rubber-tracked earth-moving machines, for the uniform assessment of those brake systems.It is applicable to the following earth-moving machinery, operating on work sites or in mining, or travelling on public roads: self-propelled, rubber-tyred earth-moving m
31、achines, as defined in ISO 6165; self-propelled rollers and landfill compactors, as defined in ISO 6165 and ISO 8811; self-propelled scrapers, as defined in ISO 7133; remote-control machines, as defined in ISO 6165, wheeled or rubber-tracked; derivative earth-moving machines with rubber tyres; earth
32、-moving machines with rubber tracks and a maximum machine speed 20 km/h.It is not applicable to pedestrian-controlled earth-moving machinery (see ISO 17063) or crawler earth-moving machines with steel or rubber tracks that travel at 2, X shall be 2 m. This is intended to limit the machine veering ou
33、tside the required public road traffic lane width.KeyW width of machine over wheels or tracks, mX width of boundary lane, mFigure 1 Boundary conditions for secondary braking4.9 Performance and warning devices for stored energy sourcesIf stored energy (e.g. reservoirs, accumulators) is used for the s
34、ervice brake system, the stored energy system shall be equipped with a low-energy warning device. The remaining pressure on the third service brake application after the warning signal shall have sufficient energy to provide secondary brake performance in accordance with Table 3, as applicable to th
35、e machine.The warning device shall readily attract the operators attention by providing a continuous (e.g. steady or pulsating) visible and/or audible warning. Gauges indicating pressure or vacuum do not meet this requirement.4.10 Braking systems with electronic MCSThe electronic control system for
36、a braking system shall meet safe state requirements as determined by the manufacturer using a risk assessment methodology. An electronic MCS complying with ISO 15998 meets such safe state requirements.If the maximum machine speed is limited by design to less than 6 km/h, these safe state requirement
37、s are fulfilled when any of the braking systems can bring the machine to a stop within the brake stopping distances given Table 3.Braking systems on machines that meet the requirements of this International Standard also achieve the safety concept of ISO 15998 for earth-moving machinery braking syst
38、ems. A risk assessment of the brake MCS needs to be carried out to determine if functional braking after any single failure involving an electrical and/or electronic MCS meets the braking performance requirements of this International Standard.NOTE ISO 15998 also requires additional testing of the M
39、CS to verify its performance and modes of failure.EN ISO 3450:2011 (E) DINEN ISO 3450:2012-0411 4.11 Machines designed to tow trailersAll performance requirements given in this International Standard that apply to the service, secondary and parking brakes of a machine also apply to the combination o
40、f a machine and trailer(s).The trailer or trailed unit(s) do not require brakes if the towing machines brakes meet the service, secondary and parking brake requirements when tested with the combined machine and trailer mass, including the specified trailer payload.The trailer brakes should be evalua
41、ted for protection against jack-knifing, if applicable.4.12 Machine instructions and labels4.12.1 GeneralOperational limitations of the brake control system according to the manufacturers specifications, if applicable, shall be included in one or the other of the following: operators manual; instruc
42、tional sign; machine monitor displays.EXAMPLE Operating precautions for braking system default conditions where the brake or retarding operating characteristics may be automatically changed creating new brake performance characteristics such as automatic shift of the transmission to neutral or poten
43、tial damage to the parking brake due to propelling through the parking brake.If brake burnishing is recommended by the brake or machine manufacturer, the brake burnishing procedure shall be included in the operators or maintenance manual for the machine.The manufacturer of any machine equipped with
44、a retarder shall provide the following instructions:a) in the operators manual, the maximum machine speed and/or the transmission gear to be engaged when the loaded machine descends specific slopes as specified by the machine manufacturer;b) an instruction sign or machine monitor display containing
45、the information specified in a), located in the operators compartment and readily visible to the operator.Instructional signs or machine monitor displays showing the retarding ability for slopes shall not exceed the minimum brake holding performance of the service and parking brakes as a percentage
46、holding slope (see 6.4.2).4.12.2 Braking system and periodic verification instructionsInformation on brakes may be provided in manuals, labels or other means readily available to the operator while in the operators station along with precautions about the limitation of this information. If braking s
47、ystem and periodic verification instructions are provided by the machine manufacturer, they should include the following:a) daily brake check method instructions: a method for verifying the functionality of the service and parking brakes; provisions for verifying the functionality of the secondary b
48、rakes if the service and/or parking brake check method does not verify functionality of the secondary brakes;b) in-service, periodic or post-maintenance brake verification instructions: a method for verifying the functionality of the service and parking brakes including acceptance criteria; a means of verifying the functionality of the secondary brakes.E
