1、Earth-moving machinery SafetyPart 7: Requirements for scrapersBS ISO 204747:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Earth-moving machinery Safety Part 7: Requirements for scrapersEngins de terrassement Scurit Partie 7: Exigences applicables aux d
2、capeusesINTERNATIONAL STANDARDISO20474-7Second edition2017-07Reference numberISO 20474-7:2017(E)National forewordThis British Standard is the UK implementation of ISO 204747:2017.The UK participation in its preparation was entrusted to Technical Committee B/513/1, Earth moving machinery (Internation
3、al).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 for its correct application. The British Standards Institution 2017 Published by BSI St
4、andards Limited 2017ISBN 978 0 580 81826 4ICS 53.100Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2017.Amendments/corrigenda issued since publicationDa
5、te Text affectedBRITISH STANDARDBS ISO 204747:2017 ISO 2017Earth-moving machinery Safety Part 7: Requirements for scrapersEngins de terrassement Scurit Partie 7: Exigences applicables aux dcapeusesINTERNATIONAL STANDARDISO20474-7Second edition2017-07Reference numberISO 20474-7:2017(E)BS ISO 204747:2
6、017ISO 20474-7:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including ph
7、otocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22
8、749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 204747:2017ISO 20474-7:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherw
9、ise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh.
10、 de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 20474-7:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Safety requirements and protective measures . 24.1 General . 24.2
11、 Operators seat 24.3 Retarder 24.4 Articulated frame lock 24.5 Towing device 24.6 Noise 24.6.1 Sound power level 24.6.2 Emission sound pressure level at operators station . 24.7 Access to engine compartment . 35 Information for use 3Annex A (informative) Illustrations. 4Bibliography 6 ISO 2017 All r
12、ights reserved iiiContents PageBS ISO 204747:2017ISO 20474-7:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical
13、 committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with
14、 the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed fo
15、r the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rig
16、hts. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in
17、this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World
18、 Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .htmlThis document was prepared by Technical Committee ISO/TC 127, Earth-moving machinery, Subcommittee SC 2, Safety, ergonomics and general requirements.This second edit
19、ion cancels and replaces the first edition (ISO 20474-7:2008), which has been technically revised with the following changes: normative references have been updated.It is intended to be used in conjunction with ISO 20474-1.A list of all parts in the ISO 20474 series, published under the general titl
20、e, Earth-moving machinery Safety, can be found on the ISO website.iv ISO 2017 All rights reservedBS ISO 204747:2017ISO 20474-7:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Int
21、ernational Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison w
22、ith ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directive
23、s, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some
24、 of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarat
25、ions received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity as
26、sessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .htmlThis document was prepared by Technical Committee ISO/TC 127, Earth-moving machinery, Subcommittee
27、SC 2, Safety, ergonomics and general requirements.This second edition cancels and replaces the first edition (ISO 20474-7:2008), which has been technically revised with the following changes: normative references have been updated.It is intended to be used in conjunction with ISO 20474-1.A list of a
28、ll parts in the ISO 20474 series, published under the general title, Earth-moving machinery Safety, can be found on the ISO website.iv ISO 2017 All rights reserved ISO 20474-7:2017(E)IntroductionThis document is a type-C standard as stated in ISO 12100.The machinery concerned and the extent to which
29、 hazards, hazardous situations or hazardous events are covered are indicated in the Scope of this document.When requirements of this type-C standard are different from those which are stated in type-A or B standards, the requirements of this type-C standard take precedence over the requirements of t
30、he other standards for machines that have been designed and built according to the requirements of this type-C standard.ISO 20474 provides acceptable safety requirements for earth-moving machinery. This standard does not necessarily provide requirements to meet all national and regional regulatory p
31、rovisions, e.g. Japan does not allow object handling with earth-moving machinery. ISO 2017 All rights reserved vBS ISO 204747:2017BS ISO 204747:2017Earth-moving machinery Safety Part 7: Requirements for scrapers1 ScopeThis document gives the safety requirements specific to wheeled scrapers and crawl
32、er scrapers, excepting towed scrapers, as defined in ISO 6165. It is intended to be used in conjunction with ISO 20474-1, which specifies general safety requirements common to two or more earth-moving machine families. The specific requirements given in this document take precedence over the general
33、 requirements of ISO 20474-1.This document deals with all significant hazards, hazardous situations and events relevant to the earth-moving machinery within its scope (see ISO 20474-1:2017, Annex A) when used as intended or under conditions of misuse reasonably foreseeable by the manufacturer. It sp
34、ecifies the appropriate technical measures for eliminating or reducing risks arising from relevant hazards, hazardous situations or events during commissioning, operation and maintenance.This document is not applicable to machines manufactured before the date of its publication.2 Normative reference
35、sThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) appli
36、es.ISO 6165, Earth-moving machinery Basic types Identification and terms and definitionsISO 6393, Earth-moving machinery Determination of sound power level Stationary test conditionsISO 6394, Earth-moving machinery Determination of emission sound pressure level at operators position Stationary test
37、conditionsISO 7096, Earth-moving machinery Laboratory evaluation of operator seat vibrationISO 7133, Earth-moving machinery Scrapers Terminology and commercial specificationsISO 10268, Earth-moving machinery Retarders for dumpers and tractor-scrapers Performance testsISO 20474-1:2017, Earth-moving m
38、achinery Safety Part 1: General requirements3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 20474-1, ISO 7133, and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online brow
39、sing platform: available at h t t p :/ www .iso .org/ obp IEC Electropedia: available at h t t p :/ www .electropedia .org/ INTERNATIONAL STANDARD ISO 20474-7:2017(E) ISO 2017 All rights reserved 1BS ISO 204747:2017ISO 20474-7:2017(E)3.1scraperself-propelled or towed crawler or wheeled machine, whic
40、h has a bowl with a cutting edge positioned between the axles and which cuts, loads, transports, discharges and spreads material through a forward motionNote 1 to entry: A powered mechanism (elevator) fixed to the scraper bowl can assist the loading through a forward motion.Note 2 to entry: See Anne
41、x A for illustrations.SOURCE: ISO 6165:2012, 4.7, modified By adding Note 2.3.2towed scraperscraper (3.1) that is not self-propelled but which is propelled instead by a towing machine on which the operators station is locatedSOURCE: ISO 6165:2012, 4.7.14 Safety requirements and protective measures4.
42、1 GeneralScrapers shall comply with the safety requirements and protective measures of ISO 20474-1, in as far as those are not modified by the specific requirements of this clause.4.2 Operators seatISO 20474-1:2017, 4.4.1, shall apply, with the addition that for scrapers without axle or frame suspen
43、sion the seat shall comply with spectral class EM 2 as given in ISO 7096:2008.4.3 RetarderIf a retarder system is installed it shall meet the requirements of ISO 10268.4.4 Articulated frame lockISO 20474-1:2017, 4.14.5 is not applicable to scrapers.4.5 Towing deviceISO 20474-1:2017, 4.15.5, shall ap
44、ply, except that ISO 20474-1 does not consider to be towing devices those attachment points (push plates, arc equipment, etc.) that are present on scrapers only to allow two machines to assist one another in loading.4.6 Noise4.6.1 Sound power levelISO 20474-1:2017, 4.13.2.1, shall apply, and the sou
45、nd power level shall be measured in accordance with ISO 6393.4.6.2 Emission sound pressure level at operators stationISO 20474-1:2017, 4.13.2.2, shall apply, and the emission sound pressure level at the operators station shall be measured in accordance with ISO 6394.2 ISO 2017 All rights reservedBS
46、ISO 204747:2017ISO 20474-7:2017(E)3.1scraperself-propelled or towed crawler or wheeled machine, which has a bowl with a cutting edge positioned between the axles and which cuts, loads, transports, discharges and spreads material through a forward motionNote 1 to entry: A powered mechanism (elevator)
47、 fixed to the scraper bowl can assist the loading through a forward motion.Note 2 to entry: See Annex A for illustrations.SOURCE: ISO 6165:2012, 4.7, modified By adding Note 2.3.2towed scraperscraper (3.1) that is not self-propelled but which is propelled instead by a towing machine on which the ope
48、rators station is locatedSOURCE: ISO 6165:2012, 4.7.14 Safety requirements and protective measures4.1 GeneralScrapers shall comply with the safety requirements and protective measures of ISO 20474-1, in as far as those are not modified by the specific requirements of this clause.4.2 Operators seatIS
49、O 20474-1:2017, 4.4.1, shall apply, with the addition that for scrapers without axle or frame suspension the seat shall comply with spectral class EM 2 as given in ISO 7096:2008.4.3 RetarderIf a retarder system is installed it shall meet the requirements of ISO 10268.4.4 Articulated frame lockISO 20474-1:2017, 4.14.5 is not applicable to scrapers.4.5 Towing deviceISO 20474-1:2017, 4.15.5, shall apply, except that ISO 20474-1 does not consider to be towing dev
