BS ISO 24042:2020 pdf free.Liquid cargo handling equipment一Crude oil offloading system一-Tandem mooring winches.
BS ISO 24042 This document specifies requirements for the design, operation, performance, and acceptance tests of tandem mooring winches.It is applicable to the design, manufacture and acceptance of tandem mooring winches for crude oil offloading systems of liquid cargo handling equipment. The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3828, Shipbuilding and marine structures一Deck machinery一Vocabulary and symbols ISO 7825, Shipbuilding一Deck machinery一General requirements ISO 3730:2012, Shipbuilding and marine structures一Mooring winches ISO 7365:2012, Shipbuilding and marine structures一Deck machinery一Towing winches for deep sea use.For the purposes of this document, the terms and definitions given in ISO 3828 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:ISO Online browsing platform: available at https://www.iso.org/obp IEC Electropedia: available at http://www.electropedia.org/ 3.1 mooring pull pulling force from the receiving tanker to the tandem mooring winch during crude oil offloading 3.2 hawser deployment and recovery load maximum pull of the rope measured at the drum exit as the tandem mooring winch starts to haul or veer at the nominal speed (3.3) with a hawser wound on the drum in a single layer 3.3 nominal speed maximum rope speed that the tandem mooring winch can maintain when withstanding the hawser deployment and recovery load (3.2) 3.4 hawser quick release action of a quick release device to release the mooring hawser quickly with conventional or standby power, aiming to release the excessive mooring pull between the hawser winch and lifting vessel under special conditions, such as extreme sea conditions, so as to disconnect the lifting vessel and guarantee the safety of crude oil offloading.The hawser is generally composed of a main rope, chafe chains, thimbles, shackles, a messenger rope and buoys. The chafe chains, main rope, thimbles and shackles withstand the mooring pull. The messenger ropes and buoys are mainly used to connect the lifting vessel before the mooring operation.
BS ISO 24042 pdf download.