ISO INTERNATIONAL STANDARD 11660-1 Second edition 2008-02-15 Cranes Access, guards and restraints - Part 1: General Appareilsde levagea charge suspendue-Moyensd'acces,dispositifs de protection et de retenue- Partie 1: Généralites Reference number ISO 11660-1:2008(E) @ ISO 2008 ISO 11660-1:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In 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-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In COPYRIGHTPROTECTEDDOCUMENT ISO2008 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 IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISo 2008 - All rights reserved ISO 11660-1:2008(E) Contents Page Foreword. 1 Scope 2 Normative references 3 Terms, definitions and symbols.. 3.1 Terms and definitions... 3.2 Symbols .. 4 Access 4.1 Classificationofaccess 4.2 Selection of access.. 5 General requirements 6 Stairs and stepped ladders . 7 Rung ladders and footholds .. 8 7.1 Rungladders 7.2 Footholds. 12 8 Hoop guards 13 9 Walkways, inclined walkways, platforms and manholes. 15 10 Handholds, handrails, intermediate guard-rails and side protection.... 17 11 Minimum free space for walkway and inclined walkway... 18 12 Hatch.. .18 13 Guards and restraints... .20 13.1 Guards for moving parts.. 20 13.2 Prevention of objects from falling.. 20 14 Electrical guarding.. .20 Annex A (informative) Examples of surface considered to be slip-resistant. 21 Bibliography @ ISO 2008 - All rights reserved ii ISO 11660-1:2008(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 member body interested in a subject for which a technical committee has been non-governmental, in liaison with sO, also take part in the 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/lEC Directives, Part 2 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. rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 11660-1 was prepared by Technical Committee ISO/TC 96, Cranes, Subcommittee SC 7, Tower cranes. This second edition cancels and replaces the first edition (isO 11660-1:1999), which has been technically revised — Part 1: General Part 2: Mobile cranes Part 3: Tower cranes Part 5:Bridgeand gantry cranes ISo 2008 - All rights reserved INTERNATIONAL STANDARD ISO 11660-1:2008(E) Cranes Access, guards and restraints Part 1: General 1 Scope This part of isO 11660 establishes the general requirements for access to control stations and other areas of and emergency. It also deals with guards and restraints in general, concerning the protection of persons on or The particular requirements relating to access, guards and restraints for