ISO INTERNATIONAL STANDARD 10245-5 First edition 1995-12-15 Cranes -- Limiting and indicating devices - Part 5: Overhead travelling and portal bridge cranes Appareils de levage a charge suspendue -- Dispositifs limiteurs et indicateurs- Partie5:Pontsroulants etpontsportiques ISO Reference number ISO10245-5:1995(E) IS010245-5:1995(E) Foreword IsO (the International Organization for Standardization) is a worldwide fed- eration of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO resented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO col- laborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are cir- a vote. International Standard 1SO 10245-5 was prepared by Technical Committee ISO/TC 96, Cranes, Subcommittee SC 9, Bridge and gantry cranes. Limiting and indicating devices: Part 1: General Part 2: Mobile cranes Part 3: Tower cranes Part 4: Jib cranes Part 5: Overhead travelling and portalbridge cranes @ISO1995 reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing fromthepublisher. International OrganizationforStandardization CasePostale56·CH-1211Geneve20·Switzerland Printed in Switzerland ii INTERNATIONAL STANDARD ISO ISO10245-5:1995(E) Cranes - Limiting and indicating devices - Part 5: Overhead travelling and portal bridge cranes 1 Scope 4 Rated capacity limiter This part of ISO 10245 specifies the requirements for 4.1 Cranes shall be fitted with a rated capacity lim- devices which limit and/or indicate the loads, motions, iter, if performance and environment of bridge and gantry cranes. The general requirements for limiting and there is a hazard of overturning: indicating devices for cranes are given in ISO 10245-1. the crane is likely to handle unpredictable loads, which can result in overloading of the mechan- isms and structures. 2 Normative references 4.2 The rated capacity limiter shall allow the rated load and lifting devices to be accelerated upwards The following standards contain provisions which with the design mean acceleration a. Normally the through reference in this text, constitute provisions of limiter can be adjusted and blocked to the appropriate this part of ISO 10245. At the time of publication, the value during tests with the rated load. For serially editions indicated were valid. All standards are subject manufactured hoisting winches, it may be adequate to revision, and parties to agreements based on this to set the rated capacity limiter during workshop part of Is0 10245 are encouraged to investigate the tests, taking into account provisions for elasticity of possibility of applying the most recent editions of the the bridges on which the winches are being used. standards indicated below. Members of IEC and ISO maintain registers of currently valid International Stan- dards. 4.3 It may be necessary to fit a system to the limiter ISO 4306-1:1990, Cranes to prevent it from sensing dynamic loads during oper Vocabulary Part 1: General. ation. IsO 8686-1:1989, Cranes Design principles for loads and load combinations Part 1: General. 4.4 The rated capacity limit setting Q, shall meet the following ratios: ISO 10245-1:1994, Cranes Limiting and indicating devices - Part 1: General. QGL where is the design mean acceleration for hoisting: 3 Definitions g is the acceleration due to gravity: For the purposes of this part of ISO 10245, the defi- is the rated capacity limit setting for the hoist nitions given in ISO 10245-1 apply. medium (rope, chain, etc.); 1