ISO INTERNATIONAL STANDARD 8431 First edition 1988-03-15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXKAYHAPOAHAAOPIAHM3ALMAO CTAHAAPTM3ALMM Shipbuilding - Fixed jib cranes -- Ship-mounted type for general cargo handling Construction navale - Grues a fleche fixe - Type de bord pour manutention de marchandisesdiverses Reference number ISO 8431 : 1988 (E) No reproduction or networking permitted without license from IHS Not for Resale 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 mental and non-governmental, in liaison with isO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with Iso procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 8431 was prepared by Technical Committee ISO/TC 8, Shipbuilding and marine structures. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. International Organization for Standardization, 1988 Printed in Switzerland No reproduction or networking permitted without license from IHS Not fr Resale ISO8431:1988 (E) INTERNATIONAL STANDARD Shipbuilding - Fixed jib cranes - Ship-mounted type for general cargo handling 1 Scope and field of application ISo 7824, Shipbuilding and marine structures - Lubrication nipples - Cone and flat types. This International Standard specifies the requirements for per- manently mounted fixed single jib cranes powered by electric or ISO 7825,Shipbuilding Deck machinery General hydraulic systems, or reciprocating internal combustion (RIC) requirements. engines. Iso 8686-1, Cranes and lifting appliances - Design principles Jib cranes are capable of hoisting, lowering, level luffing or forloadsandloadcombinations-Part1:General.1) slewing general cargo. All functions may be performed separately or simultaneously, as agreed between the manufac- lECPublication92,Electricalinstallationsinships. turer and purchaser. IEC Publication 529, Classification of degrees of protection pro- This International Standard does not include magnet and grab- videdbyenclosures. bing types, nor requirements for multicrane operation, nor details for the type of permanent mounting, e.g. on a strengthened deck, or pedestal or rotating pedestal; nor are 3 Definitions requirements for multicrane, twin jib crane, telescopic and/or articulated jib crane or offshore operation included. For the purposes of this International Standard, the definitions given in iso 3828 and ISo 4306-1 apply, with the following References additions. ISo 2374, Lifting appliances - Range of maximum capacities 3.1 luffing: Angular motion of the jib in a vertical plane. for basic models. (Definition repeated from IS0 4306-1.) ISO2408, Steel wire rope for general purposes 3.2 nominal size: Figure corresponding to the safe working Characteristics. load (SWL) which a jib crane is rated to lift at the maximum operating radius at the hook, expressed in tonnes. ISo 3828, Shipbuilding and marine structures Deck machinery -- Vocabulary. NOTE-It is commonforthistype ofcranetohavea constant SWLat ISo 4301-1, Cranes and lifting appliances Classification all operating radi. Part 1: General. 3.3 nominal hoisting speed: Average speed at which the ISo 4306-1, Lifting appliances - Vocabulary Part 1 : safe working load (SWL) can be lifted using the hoist winch General. only. Iso 4308-1, Cranes and lifting appliances - Selection of wire 3.4 nominal luffing time: Time taken to raise the jib with rop