Voorbeeld. Preview IS I INTERNATIONAL STANDARD. Cranes - Condition monitoring - Part 1: General

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1 INTERNATIONAL STANDARD IS I First edition Dit document mag slechts op een stand-alone PC worden geinstalleerd. Gebruik op een netwerk is alleen. toestaan als een aanvullende licentieovereenkomst voor netwerkgebruik met NEN is afgesloten. This document may only be used on a stand-alone PC. Use in a network is only permitted when a supplementary license agreement for us in a network with NEN has been concluded. Cranes - Condition monitoring - Part 1: General Apparels de levage 2 charge suspendue - Surveillance - Par-tie 1: GBn&aMs Reference number IS :1995(E)

2 IS =1:1995(E) Contents Page 1 Scope Normative references Definitions Special assessment Responsibility for special assessment Responsibility of the user/owner Criteria for special assessment User/owner records Special assessment report... 3 Annex A Provisions for assessing serial hoists IS 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 the publisher. International Organization for Standardization Case Postale 56 l CH-121 I Geneve 20 l Switzerland Printed in Switzerland ii

3 0 IS0 IS =1:1995(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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. International Standard IS was prepared by Technical Committee lso/tc 96, Cranes, Subcommittee SC 5, Use, operation and maintenance. IS consists of the following parts, under the general title Cranes - Condition monitoring: - Part I: General The following parts are planned for future publication: - Part 2: Mobile cranes - Part 3: Tower cranes - Part 4: Jib cranes - Part 5: Overhead traveling and portal bridge cranes Annex A forms an integral part of this part of IS III

4 IS =1:1995(E) 0 IS0 Introduction The attention of users of IS is drawn to the fact that no crane can be designed and built for infinite usage. All cranes have to work within the constraints of their intended use, and thus should undergo condition monitoring.

5 INTERNATIONAL STANDARD 0 IS0 IS =1:1995(E) Cranes - Condition monitoring - Part 1: General 1 Scope The purpose of this part of IS is to: - ensure that the design constraints of the intended use of a crane are clearly identified; - define actions to be taken when the crane has been used over a period of time and has approached these constraints, to ensure a new safe working period. A description is given of the special assessment required to monitor the condition of a crane. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS I :I 986, Cranes and lifting appliances - Classification - Part 7: General. IS I :I 990, Cranes - Vocabulary - Part 7: General. IS :1994, Cranes - Vocabulary - Part 2: Mobile cranes. IS :1991, Cranes - Vocabulary - Part 3. Tower cranes. IS l :I 994, Cranes - Inspections - Part 7.* General. 3 Definitions For the purposes of this part of IS , the definitions of crane types given in IS , IS and IS , together with the following definitions, apply. 3.1 constraint: Boundary parameter used for assessment and identified in accordance with IS for the usage intended. 3.2 special assessment (SA): Thorough examination and evaluation of the crane, to be made when the crane approaches the design constraints. 3.3 general overhaul (GO): All actions required after a special assessment, according to the assessment report recommendations, before further use of the crane. 3.4 safe working period (SWP): Period of time between two successive general overhauls. 3.5 serial hoist: Hoist, in accordance with IS I :I 990, subclause 4.7, which is designed and produced independently of a specific crane or application. 4 Special Assessment Cranes are inspected at intervals in accordance with IS l. However when the crane approaches the 1

6 IS =1:1995(E) 0 IS0 design constraints, a special assessment made to monitor the condition of the crane. shall be b) the special assessment is carried out at the appropriate time; The supplier of the crane shall ensure that criteria for when and how such an assessment shall be carried out (e.g. number of crane cycles, load spectrum, etc.) are provided to the user/owner. The special assessment shall cover all parts of the crane in which deterioration may affect safe use, and should include the following main groups of parts: - load-carrying structures; - mechanical systems; - hydraulic systems; - pneumatic systems; - electrical systems; - safety systems. The user/owner shall ensure that adequate records are maintained (see clause 8) to enable determination of the approach to the design constraints. During the regular inspections (see IS l) these records shall be inspected to ensure that the special assessment is carried out at the appropriate time. c) any general overhaul requirements given in the special assessment report are carried out before further use of the crane. 6.2 If criteria are not available Where the user/owner does not have assessment criteria for a crane, the following shall be used to indicate when a special assessment shall be carried out: a) any increase in the frequency of reported defects; b) when the regular inspection (see IS l) reveals a significant deterioration in the condition of the crane. In no circumstances shall the special assessment be carried out later than the following number of years after manufacture for: - tower cranes, loader cranes, mobile cranes: IO years; - all other cranes: 20 years. NOTE 1 It should be recognized that different parts of the crane may approach the design constraints at different times (e.g. the hoist mechanism before the travel motion system). 5 Responsibility for special assessment 7 Criteria for special assessment The supplier shall ensure that, when providing criteria for special assessment of the crane, the following are included: The special assessment procedure, based upon the information provided by the supplier (see clause 7), shall be carried out under the supervision of the expert engineer (see IS l). The expert engineer may seek the assistance of specialists in particular types of examination whenever necessary. a) number of load cycles hours, as appropriate; b) distance travelled; c) load spectrum; or number of operating The results of the special assessment, together with any conclusions, requirements or recommendations, shall be contained in a report (see clause 9) to be given to the user/owner of the crane. 6 Responsibility of the user/owner 6.1 Duties of the user/owner The user/owner shall ensure that: a) records are kept of the crane use, inspections and maintenance; d) exceptional circumstances to which the crane has been subjected (e.g. environmental, climatic or accident); e) list of parts and areas to be critically assessed; f 1 methods of assessment (measurement, nondestructive testing, acoustic emission, etc.); g) acceptance criteria. The criteria shall take into account crane usage. Suppliers therefore should not give criteria based purely on time elapsed.

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