SANS 11660-3-2009 Cranes - Access guards and restraints Part 3 Tower cranes《起重机 出入口 防护装置和限制器 第3部分：塔式起重机》.pdf

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

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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 978-0-626-23412-6 SANS 11660-3:2009Edition 2ISO 11660-3:2008Edition 2SOUTH AFRICAN NATIONAL STANDARD Cranes Access, guards and restraints Part 3: To

4、wer cranes This national standard is the identical implementation of ISO 11660-3:2008 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 7911 Fax: +2

5、7 12 344 1568 www.sabs.co.za SABS SANS 11660-3:2009 Edition 2 ISO 11660-3:2008 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 96, Cranes, in accordance with procedures of the SABS Standards Division, in compli

6、ance with annex 3 of the WTO/TBT agreement. This SANS document was published in October 2009. This SANS document supersedes SANS 11660-3:2007 (edition 1). Reference numberISO 11660-3:2008(E)ISO 2008INTERNATIONAL STANDARD ISO11660-3Second edition2008-02-15Cranes Access, guards and restraints Part 3:

7、Tower cranes Appareils de levage charge suspendue Moyens daccs, dispositifs de protection et de retenue Partie 3: Grues tour SANS 11660-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 11660-3:2008(E) PDF disclaimer This PDF file may

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12、y 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 11660-3:2009This s tandard may only be used and printed by approved subscriptio

13、n and freemailing clients of the SABS .ISO 11660-3:2008(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 carried o

14、ut 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. ISO c

15、ollaborates 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 International

16、 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 elemen

17、ts 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 11660-3 was prepared by Technical Committee ISO/TC 96, Cranes, Subcommittee SC 7, Tower cranes. This second edition cancels and replaces the first edition (IS

18、O 11660-3:1999), which has been technically revised. ISO 11660 consists of the following parts, under the general title Cranes Access, guards and restraints: Part 1: General Part 2: Mobile cranes Part 3: Tower cranes Part 5: Bridge and gantry cranes SANS 11660-3:2009This s tandard may only be used a

19、nd printed by approved subscription and freemailing clients of the SABS .SANS 11660-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 11660-3:2008(E) ISO 2008 All rights reserved 1Cranes Access, guards and restr

20、aints Part 3: Tower cranes 1 Scope This part of ISO 11660 establishes the particular requirements relating to access, guards and restraints for tower cranes as defined in ISO 4306-3. ISO 11660-1 establishes the general requirements for access to control stations and other areas of cranes as defined

21、in ISO 4306-1, during normal operations, maintenance, inspection, erection and dismantling. It also deals with guards and restraints in general, concerning the protection of persons on or near the crane with regard to moving parts, falling objects or live parts. 2 Normative references The following

22、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 11660-1:2008, Cranes Access, guards and restraints Part 1:

23、General ISO 13852, Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 11660-1 apply. 4 Access 4.1 General All control stations and all other parts of the crane

24、 requiring inspection or regular maintenance shall be accessible by means of stairs, ladders, gangways and landings. In order to carry out erection or dismantling operations, inspection, routine maintenance or replacement of parts located above the ground, the tower crane, including the jib, shall b

25、e provided with support equipment such as hand rails, hand grips, platforms, safety equipment, etc. to ensure the safety of personnel and to allow them access to places of work. SANS 11660-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS

26、.ISO 11660-3:2008(E) 2 ISO 2008 All rights reserved4.2 Requirements 4.2.1 General design requirements for access 4.2.1.1 Compliance with ISO 11660-1 The design requirements for access shall comply with the clauses/subclauses of ISO 11660-1:2008 specified in Table 1, as completed by the corresponding

27、 subclauses of this part of ISO 11660 specified in the same table. Table 1 Design requirements for access Applicable clause/subclause in ISO 11660-1:2008 Topic As completed by applicable clause in this part of ISO 11660 5.8 Crushing hazard between moving parts 4.2.1.2 6 Stairs 4.2.1.3 7 Rung ladders

28、 4.2.1.4 9 Manholes and hatched apertures 4.2.1.5 4.2.1.2 Crushing hazard between moving parts Where persons could be present between moving parts, a safety distance of at least 0,5 m shall be observed. Where such a distance cannot be obtained, guards (when possible) and warning notices shall be fit

29、ted. 4.2.1.3 Stairs In addition to the dimensions given in ISO 11660-1, the recommended dimensions for steps are as follows: rise: 200 mm; clear width: 500 mm. 4.2.1.4 Rung ladders For all types of tower cranes, the first flight of ladder may be no greater than 10 m. In addition, for self-erecting c

30、ranes, the following applies. Flights of type 1 ladders shall be positioned in such a way as to prevent persons from falling more than 10 m. Type 1 ladders shall have rest platforms at least every 10 m. Evacuation of an elevating control station in the event of power failure, etc. shall be possible

31、by alternative means of egress. When a ladder is used for this purpose, the dimensions defined in ISO 11660-1 are not applicable. With reference to ISO 11660-1:2008, Table 4, the step width, m, may be reduced to 0,2 m, and the distance between the centre line of the rung and vertical surface, d, may

32、 be reduced to 0,1 m, allowing the use of the rung at least by one foot. SANS 11660-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 11660-3:2008(E) ISO 2008 All rights reserved 34.2.1.5 Manholes and hatch apertures If the crane cons

33、truction does not allow larger dimensions: for type 1 access in accordance with ISO 11660-1:2008, the minimum dimensions for effective hatch apertures shall be (0,55 0,55) m for top-slewing cranes and (0,50 0,50) m for self-erecting cranes; for type 2 access in accordance with ISO 11660-1:2008, the

34、minimum dimensions for effective hatch apertures shall be (0,50 0,40) m. 4.2.2 Access provided in a horizontal jib 4.2.2.1 General If it is not possible to lower the jib to the ground to carry out a visual inspection of it, a basket fixed to the trolley shall be provided. In addition, a walkway inco

35、rporating the following shall be fixed along the jib to reach the mechanism(s): side protection, or personal protective device against the falls. When the basket cannot be used during erection/dismantling, repair or maintenance, the use of a personal protective device against the falls shall be poss

36、ible all along the jib. 4.2.2.2 Walkway The width of the walkway shall comply with ISO 11660-1:2008, Table 6, type 2. When the size of the jib is sufficient to walk inside the jib (i.e. the dimension between the walkway and the upper member is equal to or greater than 1,8 m), toe boards shall be pro

37、vided on each side of the walkway with a minimum height of 0,03 m. When the dimension between the walkway and the upper member is less than 1,8 m, a toe board is provided only on one side (see Figure 1). Dimensions in metres Figure 1 Walkway with toe board on one side SANS 11660-3:2009This s tandard

38、 may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 11660-3:2008(E) 4 ISO 2008 All rights reserved4.2.2.3 Position of the walkway, handrail and steel wire rope Manufacturers shall take into consideration the dimension of the jib when determining the positi

39、on of the walkway, hand rail and steel wire rope. 4.2.2.4 Basket The minimum dimension of the length/width of the basket shall be (0,50 0,35) m. Manufacturers shall take into consideration the mass and the number of persons when determining the basket. The side protection shall comply with ISO 11660

40、-1:2008, Table 7, type 2, walkway. Instructions and markings shall be provided for the use of the basket on the following: how to reach the basket; the admissible load and number of persons; warnings concerning residual risks, e.g. shearing, entanglement. 5 Guarding 5.1 Guards for moving parts Durin

41、g the access to the control station, moving parts shall be guarded by safety distances as defined in ISO 13852, or by provision of removable or fixed guards. The guards that may be used on walkways or work platforms shall be designed for this use (see ISO 11660-1). If the crane construction does not

42、 permit such guards, warnings shall be provided, e.g. in top slewing cranes, in limited space areas within the connection between slewing ring support, slewing ring and slewing platform; in self-erecting cranes, between undercarriage, slewing ring and machinery platform. 5.2 Prevention of crane comp

43、onents from falling Crane parts such as gears, pulleys, trolley wheels, covers and boxes shall be designed, assembled and fixed in such a way as to prevent them from falling during normal operation. Covers, guards and access closures shall be fitted with hinges or other means to prevent them from fa

44、lling. The trolleys shall be designed such that: the wheels will not slip out from the railway in case of rupture of the axis, and it shall not be possible for the trolley to fall. The output gears of the slewing gears shall be provided with covers or another device to prevent them from falling in c

45、ase of rupture. SANS 11660-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 11660-3:2008(E) ISO 2008 All rights reserved 5Bibliography 1 ISO 4306-1, Cranes Vocabulary Part 1: General 2 ISO 4306-3, Cranes Vocabulary Part 3: Tower cran

46、es SANS 11660-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .This page has been left blank intentionally SABS Standards Division The objective of the SABS Standards Division is to develop, promote and maintain South African National St

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