1、 ISO 2017 Earth-moving machinery Safety Part 10: Requirements for trenchers Engins de terrassement Scurit Partie 10: Exigences applicables aux trancheuses INTERNATIONAL STANDARD ISO 20474-10 Second edition 2017-07 Reference number ISO 20474-10:2017(E) ISO 20474-10:2017(E)ii ISO 2017 All rights reser
2、ved COPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Switzerland All 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 photocopying, or posting on the internet or an int
3、ranet, 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 office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.
4、org www.iso.org ISO 20474-10:2017(E)Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 1 4 Safety requirements and protective measures . 2 4.1 General . 2 4.2 Restraint bar . 2 4.3 Ride-on operated trenchers . 2 4.3.1 Operators seat . 2 4.3.2 Operators control
5、s 3 4.4 Non-riding trenchers . 3 4.4.1 Controls 3 4.4.2 Lighting 3 4.4.3 Warning devices and safety signs . 3 4.5 Noise 3 4.5.1 Sound power level 3 4.5.2 Sound pressure level at operators station 3 5 Information for use 3 Annex A (informative) Illustrations. 5 Bibliography 8 ISO 2017 All rights rese
6、rved iii Contents Page ISO 20474-10:2017(E) Foreword ISO (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 committees. Each membe
7、r 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 the International Elec
8、trotechnical 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 for the different types
9、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 rights. ISO shall not be
10、 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 this document is inf
11、ormation 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 Trade Organization
12、 (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: w w w . i s o .org/ iso/ foreword .html This document was prepared by Technical Committee ISO/TC 127, Earth-moving machinery, Subcommittee SC 2, Safety, ergonomics and general requirements. This second edition cancels
13、and replaces the first edition (ISO 20474-10:2008), which has been technically revised with the following changes: normative references have been updated; references to national and regional provisions in the withdrawn ISO/TS 20474-14 have been deleted; new safety requirements and protective measure
14、s have been added, and the illustrations of Annex A 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 title, Earth-moving machinery Safety, can be found on the ISO website.iv ISO 2017 All rights reserved ISO 2
15、0474-10:2017(E) Introduction This document is a type-C standard as stated in ISO 12100. The machinery concerned and the extent to which 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 f
16、rom those which are stated in type-A or B standards, the requirements of this type-C standard take precedence over the requirements of the other standards for machines that have been designed and built according to the requirements of this type-C standard. ISO 20474 provides acceptable safety requir
17、ements for earth-moving machinery. This standard does not necessarily provide requirements to meet all national and regional regulatory provisions, e.g. Japan does not allow object handling with earth-moving machinery. ISO 2017 All rights reserved v Earth-moving machinery Safety Part 10: Requirement
18、s for trenchers 1 Scope This document gives the safety requirements specific to trenchers 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 give
19、n in this document take precedence over the general 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 mis
20、use reasonably foreseeable by the manufacturer. It specifies 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 be
21、fore the date of its publication. 2 Normative references The 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
22、the referenced document (including any amendments) applies. ISO 6165, Earth-moving machinery Basic types Identification and terms and definitions ISO 6682, Earth-moving machinery Zones of comfort and reach for controls ISO 6393, Earth-moving machinery Determination of sound power level Stationary te
23、st conditions ISO 6394, Earth-moving machinery Determination of emission sound pressure level at operators position Stationary test conditions ISO 12509, Earth-moving machinery Lighting, signalling and marking lights, and reflex-reflector devices ISO 13539:1998, Earth-moving machinery Trenchers Defi
24、nitions and commercial specifications ISO 20474-1:2017, Earth-moving machinery Safety Part 1: General requirements 3 T erms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO 20474-1, ISO 13539, and the following apply. ISO and IEC maintain terminological dat
25、abases for use in standardization at the following addresses: ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp IEC Electropedia: available at h t t p :/ www .electropedia .org/ INTERNATIONAL ST ANDARD ISO 20474-10:2017(E) ISO 2017 All rights reserved 1 ISO 20474-10:2017(E) 3.
26、1 trencher self-propelled crawler or wheeled machine, having rear- and front-mounted equipment or attachment, primarily designed to produce a trench in a continuous operation, through motion of the machine Note 1 to entry: The attachment can be a digging chain, wheel, disk, plough blade or similar.
27、Note 2 to entry: See Annex A for illustrations. SOURCE: ISO 6165:2012, 4.5, modified By adding Note 2. 3.2 restraint bar structure generally above and parallel to the digging chain which provides a degree of protection from contact with the digging element Note 1 to entry: See Annex A for illustrati
28、ons. 3.3 trench narrow horizontal excavation for which, in general, the depth is greater than the width 4 Safety requirements and protective measures 4.1 General Trenchers shall comply with the safety requirements and protective measures of ISO 20474-1, in as far as those are not modified by the spe
29、cific requirements of this clause. 4.2 Restraint bar ISO 20474-1:2017, 4.14.3, shall apply, with the addition that a restraint bar shall be fitted and shall extend as far as practical over the length of the digging chain. A restraint bar or trench cleaner bar as shown in ISO 13539:1998, Figure 5, sa
30、tisfies this requirement. 4.3 Ride-on operated trenchers 4.3.1 Operators seat 4.3.1.1 General ISO 20474-1:2017, 4.4.1.2, shall apply, with the exceptions given in 4.3.1.2 and 4.3.1.3 below. 4.3.1.2 Seat with transversal position Fore and aft seat adjustment is not required. 4.3.1.3 Additional or sep
31、arate operator station If a separate operator station is required for control of a special attachment, the following exceptions shall apply: a separate cab is not required (ISO 20474-1:2017, 4.3.1, does not apply); a roll-over protective structure is not required (ISO 20474-1:2017, 4.3.3, does not a
32、pply); falling object protective structures (FOPS) are not required (ISO 20474-1:2017 , 4.3.4, does not apply).2 ISO 2017 All rights reserved ISO 20474-10:2017(E) 4.3.2 Operators controls 4.3.2.1 General ISO 20474-1:2017, 4.5.1, shall apply, with the additions given in 4.3.2.2 and 4.3.2.3 below. 4.3
33、.2.2 Engine stop If a separate seat for a special attachment is provided (e.g. backhoe equipment) and if the normal stopping device is not within the zone of reach according to ISO 6682 from that separate seat, an additional engine stopping device shall be fitted. 4.3.2.3 Control deactivation ISO 20
34、474-1:2017, 4.5.3, shall apply, with the addition that the machine travel and attachment movement shall stop when the operator leaves the operators station. 4.4 Non-riding trenchers 4.4.1 Controls ISO 20474-1:2017, 4.5, shall apply, with the following additions: non-riding trenchers shall be equippe
35、d with one or more systems to stop machine travel and hazardous tool movement when the operator releases the operators controls; design of the controls shall take into account the hazards from inadvertent movement of the machine towards the operator. 4.4.2 Lighting ISO 20474-1:2017, 4.8.2, shall not
36、 apply to non-riding trenchers. If provided with lighting, the machines signalling and marking lights shall be in accordance with the appropriate clauses of ISO 12509. 4.4.3 Warning devices and safety signs ISO 20474-1:2017, 4.9 a) does not apply to pedestrian-controlled trenchers. 4.5 Noise 4.5.1 S
37、ound power level The sound power level shall be measured in accordance with ISO 6393. 4.5.2 Sound pressure level at operators station The emission sound pressure level at the operators station shall be measured in accordance with ISO 6394. See also ISO 20474-1:2017, 4.13.2.2. 5 Information for use I
38、SO 20474-1:2017, 6.2, shall apply, with the following additions: an instruction to wear hearing protection if the A-weighted sound pressure exceeds 85 dB; instructions regarding the deactivating device; ISO 2017 All rights reserved 3 ISO 20474-10:2017(E) safety rules for the use of the restraint bar
39、; instructions and safety precautions relating to the operation of pedestrian-controlled trenchers (e.g. automatic stop, speed limit, brake systems).4 ISO 2017 All rights reserved ISO 20474-10:2017(E) Annex A (informative) Illustrations See Figures A.1 to A.5. Figure A.1 Wheeled trencher Ride-on ISO
40、 2017 All rights reserved 5 ISO 20474-10:2017(E) Figure A.2 Wheeled trencher Pedestrian-controlled Figure A.3 Crawler trencher Ride-on6 ISO 2017 All rights reserved ISO 20474-10:2017(E) Figure A.4 Crawler trencher with elevating operators station Figure A.5 Wheeled trencher Rear disk attachment ISO
41、2017 All rights reserved 7 ISO 20474-10:2017(E) Bibliography 1 ISO 3411, Earth-moving machinery Physical dimensions of operators and minimum operator space envelope 2 ISO 6395-2, Earth-moving machinery Determination of sound power level Dynamic test conditions 3 ISO 7096, Earth-moving machinery Labo
42、ratory evaluation of operator seat vibration 4 ISO 12100, Safety of machinery General principles for design Risk assessment and risk reduction 5 ISO 17063, Earth-moving machinery Braking systems of pedestrian-controlled machines Performance requirements and test procedures8 ISO 2017 All rights reserved ISO 20474-10:2017(E) ISO 2017 All rights reserved IC S 53.100 Price based on 8 pages
