BS EN ISO 7236:2016 pdf download – Ships and marine technology — Inland navigation vessels — Mounting attachments for demountable signal masts for push-tows (ISO 7236:2014)

BS EN ISO 7236:2016 pdf download – Ships and marine technology — Inland navigation vessels — Mounting attachments for demountable signal masts for push-tows (ISO 7236:2014) 1 Scope This International Standard applies to mounting attachments for demountable masts with an integral mast lower part for the placing of lights on push barges. It specifies construction, dimensions,manufacture, arrangement, and means of attachment. 2 Normative references The following referenced documents are indispensable for the application 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 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual tolerance indications EN 10025-2, Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy structural steels 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 mounting attachment device comprising of a mast stand and mast clamp which are arranged on the barge in such a way that they can maintain a signal mast in the specified position 3.2 mast stand device fixed to the deck which accepts the lower part of the signal mast and secures it against rotation about the vertical mast axis 3.3 mast clamp device which secures the top of the lower portion of the signal mast 3.4 mast lower part lower part of the signal mast which is inserted into the mounting attachment 4 Technical requirements General tolerances: ISO 2768:— c. The requirements relate to construction, dimensions, design, arrangement, and means of attachment. 4.1 Dimensions The mounting attachment is not expected to conform to the design illustrated in this International Standard; compliance is only required in the case of the dimensions specified. 4.2 Mast stand 4.3 Mast clamp The clamp is shown to be attached using screws and nuts/wing nuts. Any equivalent means of attachment is permitted provided that the mast is held securely. Only captive screws, nuts, or wing nuts shall be used. 4.4 Mounting attachment The mounting attachment consists of the mast stand and a mast clamp. The mast stand shall be positioned so that the signal mast bearing pins are precisely aligned parallel to the longitudinal and transverse axes of the vessel. In addition, the mast stand and mast clamp shall be arranged in such a way that axis of the lower part of the signal mast is...