1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-23562-8 SANS 20474-10:2010Edition 1ISO 20474-10:2008Edition 1SOUTH AFRICAN NATIONAL STANDARD Earth-moving machinery Safety Part 10: Requir
4、ements for trenchers This national standard is the identical implementation of ISO 20474-10:2008, and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428
5、7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 20474-10:2010 Edition 1 ISO 20474-10:2008 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 1034, Agricultural, earth-moving, forestry and construction equipment
6、 and machinery, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in February 2010. Reference numberISO 20474-10:2008(E)ISO 2008INTERNATIONAL STANDARD ISO20474-10First edition2008-12-15Earth-moving mach
7、inery Safety Part 10: Requirements for trenchers Engins de terrassement Scurit Partie 10: Exigences applicables aux trancheuses SANS 20474-10:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-10:2008(E) PDF disclaimer This PDF fil
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9、responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-cr
10、eation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO
11、2008 All rights reserved. Unless otherwise specified, no Part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the c
12、ountry of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights reservedSANS 20474-10:2010This s tandard may only be used and printed by approved subsc
13、ription and freemailing clients of the SABS .ISO 20474-10:2008(E) ISO 2008 All rights reserved iiiForeword 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 ca
14、rried 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 with ISO, also take Part in the work
15、. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare Intern
16、ational Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the
17、 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. ISO 20474-10 was prepared by Technical Committee ISO/TC 127, Earth-moving machinery, Subcommittee SC 2, Safety, ergonomics and general requirements. ISO 20
18、474 consists of the following parts, under the general title Earth-moving machinery Safety: Part 1: General requirements Part 2: Requirements for tractor-dozers Part 3: Requirements for loaders Part 4: Requirements for backhoe loaders Part 5: Requirements for hydraulic excavators Part 6: Requirement
19、s for dumpers Part 7: Requirements for scrapers Part 8: Requirements for graders Part 9: Requirements for pipelayers Part 10: Requirements for trenchers Part 11: Requirements for earth and landfill compactors Part 12: Requirements for cable excavators Part 13: Requirements for rollers Part 14: Infor
20、mation on national and regional provisions Technical Specification SANS 20474-10:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-10:2008(E) iv ISO 2008 All rights reservedIntroduction This document is a type-C standard as stated
21、 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 from those which are stated in type-A or B standards, the requirements of
22、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. Provisions that are applicable for Australia, EU, Japan or the USA, and which are mandatory for compliance with spec
23、ific governmental laws, directives or regulations in force in the particular country or region, are given in ISO/TS 20474-14. NOTE Other countries or regions may also have regional requirements. SANS 20474-10:2010This s tandard may only be used and printed by approved subscription and freemailing cl
24、ients of the SABS .INTERNATIONAL STANDARD ISO 20474-10:2008(E) ISO 2008 All rights reserved 1Earth-moving machinery Safety Part 10: Requirements for trenchers 1 Scope This part of ISO 20474 gives the safety requirements specific to trenchers as defined in ISO 6165. It is intended to be used in conju
25、nction with ISO 20474-1, which specifies general safety requirements common to earth-moving machine families, and with ISO/TS 20474-14, which gives information on provisions that are mandatory in particular countries or regions. The specific requirements given in this part of ISO 20474 take preceden
26、ce over the general requirements of ISO 20474-1. This part of ISO 20474 deals with all significant hazards, hazardous situations and events relevant to the earth-moving machinery within its Scope when used as intended or under conditions of misuse reasonably foreseeable by the manufacturer (see also
27、 ISO/TS 20474-14). It specifies the appropriate technical measures for eliminating or reducing risks arising from significant hazards, hazardous situations or events during commissioning, operation and maintenance. It is not applicable to machines manufactured before the date of its publication. 2 N
28、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 3411:2007, Earth-moving m
29、achinery Physical dimensions of operators and minimum operator space envelope ISO 3471, Earth-moving machinery Roll-over protective structures Laboratory tests and performance requirements ISO 6165:2006, Earth-moving machinery Basic types Identification and terms and definitions ISO 6682, Earth-movi
30、ng machinery Zones of comfort and reach for controls ISO 6016, Earth-moving machinery Methods of measuring the masses of whole machines, their equipment and components ISO 6393, Earth-moving machinery Determination of sound power level Stationary test conditions ISO 6394, Earth-moving machinery Dete
31、rmination of emission sound pressure level at operators position Stationary test conditions ISO 7096:2000, Earth-moving machinery Laboratory evaluation of operator seat vibration ISO 12509, Earth-moving machinery Lighting, signalling and marking lights, and reflex-reflector devices SANS 20474-10:201
32、0This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-10:2008(E) 2 ISO 2008 All rights reservedISO 13539:1998, Earth-moving machinery Trenchers Definitions and commercial specifications ISO 17063, Earth-moving machinery Braking systems o
33、f pedestrian-controlled machines Performance requirements and test procedures ISO 20474-1:2008, Earth-moving machinery Safety Part 1: General requirements 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 20474-1 and ISO 13539, and the following, apply
34、: 3.1 trencher self-propelled crawler or wheeled machine, having rear- and/or front-mounted equipment or attachment, primarily designed to produce a trench in a continuous operation, through motion of the machine NOTE The attachment can be a digging chain, wheel, disk, plough blade or similar. ISO 6
35、165:2006, definition 4.5 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 See Figures A.1 to A.4. 3.3 trench narrow horizontal excavation for which, in general, the depth is greater than the
36、 width 4 Safety requirements and/or protective measures 4.1 General Trenchers shall comply with the safety requirements and/or protective measures of ISO 20474-1, in as far as those are not modified by the specific requirements of this clause. 4.2 Restraint bar ISO 20474-1:2008, 4.14.3, shall apply,
37、 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, satisfies this requirement. 4.3 Ride-on operated trenchers 4.3.1 Operators station For the mi
38、nimum operator space envelope, ISO 20474-1:2008, 4.3.1, shall apply, with the exception that, for trenchers having an operating mass in accordance with ISO 6016 of less than 2 000 kg, the minimum distance from the SIP (seat index point) to a window retracted above the operator head according to ISO
39、3411:2007 (920 mm) may be reduced to 650 mm at elbow height. SANS 20474-10:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-10:2008(E) ISO 2008 All rights reserved 34.3.2 Roll-over protective structure (ROPS) A roll-over protecti
40、ve structure (ROPS) shall be fitted. Force and energy equation shall be in accordance with ISO 3471. For mandatory national and regional provisions, see ISO/TS 20474-14. 4.3.3 Operators seat 4.3.3.1 General ISO 20474-1:2008, 4.4.1.2, shall apply, with the following exceptions (4.3.3.2 and 4.3.3.3).
41、4.3.3.2 Adjustment 4.3.3.2.1 Seat with longitudinal position For compact machines with an operating mass according to ISO 6016 of 3 500 kg, the adjustment range shall comply with ISO 20474-1:2008, 4.4.1.3. 4.3.3.2.2 Seat with transversal position Fore and aft seat adjustment is not required. 4.3.3.2
42、.3 Vibration ISO 20474-1:2008, 4.4.1.4, shall apply, with the addition that the seat shall be in accordance with ISO 7096:2000, input spectral class EM 6. 4.3.3.3 Additional/separate operators station For mandatory national and regional provisions, see ISO/TS 20474-14. 4.3.4 Operators controls 4.3.4
43、.1 General ISO 20474-1:2008, 4.5.1, shall apply, with the following additions (4.3.4.2 and 4.3.4.3). 4.3.4.2 Engine stop If a separate seat for 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 se
44、parate seat, an additional engine stopping device shall be fitted. 4.3.4.3 Control deactivation ISO 20474-1:2008, 4.5.3, shall apply, with the addition that the machine travel and attachment movement shall stop when the operator leaves the operators station. 4.3.5 Stability For mandatory national an
45、d regional provisions, see ISO/TS 20474-14. SANS 20474-10:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-10:2008(E) 4 ISO 2008 All rights reserved4.4 Pedestrian-controlled trenchers 4.4.1 Operators station ISO 20474-1:2008, 4.3
46、.1.1, 4.3.1.2 and 4.3.1.6 are not applicable to pedestrian-controlled machines. 4.4.2 Controls 4.4.2.1 General ISO 20474-1:2008, 4.5, is applicable with the following additions (4.4.2.2 and 4.4.2.3). 4.4.2.2 Control deactivation Pedestrian-controlled trenchers shall be equipped with system(s) to sto
47、p 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. 4.4.2.3 Speed limit The forward speed of pedestrian-controlled machines shall not
48、exceed 6 km/h by design. The speed of travel towards the operators position shall not exceed 2,5 km/h by design. 4.4.3 Brake system The brake system shall be in accordance with ISO 17063. 4.4.4 Lighting ISO 20474-1:2008, 4.8.2, is not applicable to pedestrian-controlled trenchers. If provided with l
49、ighting, the machines signalling and marking lights shall be in accordance with the appropriate clauses of ISO 12509. 4.4.5 Warning devices and safety signs ISO 20474-1:2008, 4.9 a) is not applicable to pedestrian-controlled trenchers. 4.4.6 Retrieval, transportation, lifting and towing ISO 20474-1:2008, 4.15, shall apply, with the exception of 4.15.2 and 4.15.5. 4.5 Noise 4.5.1 Sound power level The sound power level of trenchers shall be measured in accord
