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 978-0-626-23564-2 SANS 20474-12:2010Edition 1ISO 20474-12:2008Edition 1SOUTH AFRICAN NATIONAL STANDARD Earth-moving machinery Safety Part 12: Requir
4、ements for cable excavators This national standard is the identical implementation of ISO 20474-12:2008, 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
5、12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 20474-12:2010 Edition 1 ISO 20474-12:2008 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 eq
6、uipment 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 20474-12:2008(E)ISO 2008INTERNATIONAL STANDARD ISO20474-12First edition2008-12-15Earth-movi
7、ng machinery Safety Part 12: Requirements for cable excavators Engins de terrassement Scurit Partie 12: Exigences applicables aux pelles cble SANS 20474-12:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-12:2008(E) PDF disclaime
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11、 DOCUMENT ISO 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
12、 body in the country 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 20474-12:2010This s tandard may only be used and printed by
13、approved subscription and freemailing clients of the SABS .ISO 20474-12:2008(E) ISO 2008 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Safety requirements and/or protective measures . 2 4.1 General. 2 4.2 Access .
14、2 4.3 Operators station . 2 4.4 Operators controls and indicators. 3 4.5 Steering 3 4.6 Swing brakes. 3 4.7 Lift system . 3 4.8 Limiting devices 5 4.9 Calculation of the lift capacity. 5 4.10 Safety-related parts of the control system. 6 4.11 Stability 6 4.12 Cable excavator with electrical power so
15、urce. 7 5 Verification of safety requirements and/or protective measures 7 6 Information for use . 7 Annex A (normative) Requirements for cable excavator swing brakes . 8 Annex B (informative) Illustrations. 11 Bibliography . 15 SANS 20474-12:2010This s tandard may only be used and printed by approv
16、ed subscription and freemailing clients of the SABS .ISO 20474-12:2008(E) iv ISO 2008 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is norm
17、ally 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 with ISO, also take Part in t
18、he work. 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
19、 International 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
20、 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. ISO 20474-12 was prepared by Technical Committee ISO/TC 127, Earth-moving machinery, Subcommittee SC 2, Safety, ergonomics and general requirements.
21、 ISO 20474 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: Requ
22、irements 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
23、: Information on national and regional provisions Technical Specification SANS 20474-12:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-12:2008(E) ISO 2008 All rights reserved vIntroduction This document is a type-C standard as
24、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 from those which are stated in type-A or B standards, the requiremen
25、ts 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. Provisions that are applicable for Australia, EU, Japan or the USA, and which are mandatory for compliance wit
26、h specific 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 20474-12:2010This s tandard may only be used and printed by approved subscription and freemail
27、ing clients of the SABS .SANS 20474-12:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 20474-12:2008(E) ISO 2008 All rights reserved 1Earth-moving machinery Safety Part 12: Requirements for cable excavators 1 Sc
28、ope This part of ISO 20474 gives the safety requirements specific to cable excavators as defined in ISO 6165. It is intended to be used in conjunction with ISO 20474-1, which specifies general safety requirements common to earth-moving machine families, and with ISO/TS 20474-14, which gives informat
29、ion on provisions that are mandatory in particular countries or regions. The specific requirements given in this part of ISO 20474 take precedence 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
30、earth-moving machinery within its Scope when used as intended or under conditions of misuse reasonably foreseeable by the manufacturer (see also ISO/TS 20474-14). It specifies the appropriate technical measures for eliminating or reducing risks arising from significant hazards, hazardous situations
31、or events during commissioning, operation and maintenance. It is not applicable to machines manufactured before the date of its publication. It can also be applied to cable excavators, their undercarriages and upper-structures, if intended for use in combination with other equipment or attachments s
32、uch as drill rigs, pile-driving, extracting and moving (e.g. rail-track, walking legs, pontoon, ship) equipment or stationary undercarriages. It does not deal with the specific hazards relevant to such additional equipment or attachments. 2 Normative references The following referenced documents are
33、 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 2867:2000, Earth-moving machinery Access systems ISO 4310, Cranes Test codes and pr
34、ocedures ISO 5010, Earth-moving machinery Rubber-tyred machines Steering requirements ISO 6165, Earth-moving machinery Basic types Identification and terms and definitions ISO 6014, Earth-moving machinery Determination of ground speed ISO 7546, Earth-moving machinery Loader and front loading excavat
35、or bucket Volumetric ratings ISO 15219, Earth-moving machinery Cable excavators Terminology and commercial specifications IEC 60204-32, Safety of machinery Electrical equipment of machines Part 32: Requirements for hoisting machines ISO 20474-1:2008, Earth-moving machinery Safety Part 1: General req
36、uirements SANS 20474-12:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-12:2008(E) 2 ISO 2008 All rights reservedEN 474-1:2006, Earth-moving machinery Safety Part 1: General requirements EN 791:1995, Drill rigs Safety 3 Terms an
37、d definitions For the purposes of this document, the terms and definitions given in ISO 20474-1 and ISO 15219, and the following, apply. 3.1 cable excavator excavator having a wire-rope-operated upper structure designed primarily for excavation with a dragline bucket, front shovel or grab, used for
38、compacting material with a compaction plate, for demolition work by hook or ball, and for material handling with special equipment and attachment ISO 6165:2006, definition 4.4.3 NOTE For a definition of excavator, see ISO 6165. 3.2 boom hoist system boom (lower, intermediate and head section), A-fra
39、me system and boom hoist winch system 3.3 lift system main winch system used for earth-moving, demolition, compaction and object-handling (e.g. with hook assembly) applications 4 Safety requirements and/or protective measures 4.1 General Cable excavators shall comply with the safety requirements and
40、/or protective measures of ISO 20474-1, in as far as those are not modified by the specific requirements of this clause. 4.2 Access ISO 20474-1:2008, 4.2, shall apply, with the exception that the maximum width, G, of a ladder between parallel handrails, as specified in ISO 2867:2006, Table 2, may be
41、 greater than 600 mm when the hand rails/handholds are placed in the door opening. 4.3 Operators station 4.3.1 General ISO 20474-1:2008 4.3, shall apply, together with the following (4.3.2 to 4.3.4). 4.3.2 Roll-over protective structures (ROPS) ISO 20474-1:2008, 4.3.3, is not applicable to cable exc
42、avators. 4.3.3 Operators protective guard For mandatory national and regional requirements, see ISO/TS 20474-14. SANS 20474-12:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-12:2008(E) ISO 2008 All rights reserved 34.3.4 Operat
43、ors seat vibrations For mandatory national and regional requirements, see ISO/TS 20474-14. 4.4 Operators controls and indicators 4.4.1 Controls for driving and steering ISO 20474-1:2008, 4.5.1 d) and 4.6.1, shall apply, except that the movements of the controls for driving and steering do not need t
44、o correspond to the intended direction of movement if the upper structure is not in the normal driving direction. 4.4.2 Warning indicator ISO 20474-1:2008, 4.5.1, shall apply. Additionally, warning indicators shall be provided at the operators station or other relevant location to indicate the activ
45、ation of the free-fall operations (see 4.7.2) and to indicate the deactivation of the load moment limiting devices (see 4.8.1) during dragline bucket, grab and front shovel application. 4.5 Steering ISO 20474-1:2008, 4.6, shall apply, with the following exceptions. ISO 20474-1:2008, 4.6.2 shall appl
46、y only for rubber-tyred cable excavators with a travel speed of more than 30 km/h measured according to ISO 6014. For rubber-tyred machines with a travel speed less than or equal to 30 km/h, ISO 5010 shall apply, except for the requirements for emergency steering. 4.6 Swing brakes Cable excavators s
47、hall be equipped with swing service and swing parking brake systems, which shall meet the requirements as defined in Annex A. 4.7 Lift system For mandatory national and regional provisions, see ISO/TS 20474-14. 4.7.1 Force-controlled operation (lifting, lowering) The lift system of cable excavators
48、shall be fitted with a brake that actuates immediately after the release of lever or pedal controls. The brake system shall automatically actuate in case of a loss of energy or force-controlled lowering. There shall be no effect on the stability of the excavator during this operation. The brake syst
49、em shall be capable of holding the rated load as specified in 4.9. 4.7.2 Free-fall operation The lift system of a cable excavator shall be fitted with a brake that actuates immediately after corresponding activation of the pedal control, or release of a hand-operated lever control. SANS 20474-12:2010This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 20474-12:2008(E) 4 ISO 2008 All rights reserv
