ISO INTERNATIONAL STANDARD 6115 Second edition 1988-11-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEKAYHAPOAHAAOPIAHM3ALMROCTAHAAPTW3ALWM Shipbuilding -Trawl winches Construction navale - Treuils de peche Reference number ISO 6115: 1988 (E) Copyright inteinational Organizatin for Standardizatin No reproduction or networking permitted without license from IHS Not for Resale ISO6115:1988 (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 established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with Iso, also take part in the work. Iso 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 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 6115 was prepared by Technical Committee ISO/TC 8, Shipbuilding and marine structures. This second edition cancels and replaces the first edition (IS0 6115 : 1981) of which it constitutes a minor revision. Annex A forms an integral part of this International Standard; annexes B and C are given for information only. International Organization for Standardization, 1988 Printed in Switzerland No reproduction or networking permitted without license from IHS Not fr Resale ISO6115:1988(E) INTERNATIONAL STANDARD Shipbuilding - Trawl winches 1 Scope 3 Definitions This International Standard specifies requirements pue For the purposes of this International Standard, the definitions characteristics of single-drum and double-drum trawl winches given in ISO 3828 and the following definitions apply. with electric, electro-hydraulic, hydraulic diesel or externally powered drive. 3.1 nominal size:Drum load on the trawl rope drum, in tonnes,as stated intable 1,for a single-drum trawl winch. The winches are used for hauling-in, paying-out and holding the trawi rope while fishing by means of trawling fishing gear. NOTE -For a double-drum trawl winch, the nominal size corresponds to twice the drum load stated in table 1. When equipped with additional auxiliary drums, they may also be used for auxiliary operations when hauling-in, paying-out 3.2 drum load: Maximum trawl rope tension, measured at and emptying the trawl net. the drum exit with a trawl rope being hauled-in at the nominal speed and being wound onto the appropriate nominal trawl rope winding diameter of the drum. 2 Normativereferences 3.3 design torque: Driving torque available at the drum, resulting from the drum load applied to the half-length rope The following standards contain provisions which, through nominal trawl rope winding diameter,for a single-drum winch. reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated NOTE - For a double-drum winch, the design torque is twice the were valid. All standards are subject to revision, and parties to design torque of a single-drum winch. agreements basedon this International Standard are encouraged to investigate the possibility of applying the most recent 3.4 Nominal trawl rope winding diameter editions of the standards listed below.Members of IEC and ISO maintain registers of currently valid International Standards. 3.4.1 winding diameter full-length rope: Diameter when the whole design length of the rope has been wound onto the Iso 2408 : 1985, Steel wire ropes for general pur