BS EN 1502:2020 pdf free.Inland navigation vessels – Boarding stairs.
BS EN 1502 1 Scope This document applies to boarding stairs for inland navigation vessels. Boarding stairs are used on inland navigation vessels for a safe transition into ship’s boats, safe disembarking to the shore or a safe crossing over onto vessels with lower decks. This document specifies safety requirements on the design, dimensions and strength and test methods
for outboard stairs. Boarding stairs are designed for vessels having a boarding height greater than 1,5 m above the light water-line. They can be used up to a height of around 3,0 m above the light water-line. Boarding stairs are not intended for use by passengers.
2 Normative references 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. EN 22768-1, General tolerances . Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. IS0 and IEC maintain terminological databases for use in standardization at the fllowing addresses: 一IEC Electropedia: available at ht:/www.electropedia.org/ 一IS0 Online browsing platform: available at http://www.iso.org/obp 3. boarding stair movable device with steps to be attached to the vessel’s side for comfortable boarding and
disembarking 3.2 string -sinland navigation> lateral limitation of a boarding stair supporting the steps 3.3 step <inland navigation> tread of the boarding stair inclination angle cinland navigation> angle between the pitch line connecting the front edge of the steps and the horizontal line.4.2.4.2 The handrails shall be ftted on both sides. The handrail on the left hand side, as one
ascends, shall only be extended to the top of the string. 4.2.4.3 The handrails shall run parallel to the string up to the third step from the bottom and attached to the string between the second and third step from the bottom. 4.2.4.4 It shall be possible to grip the handrall on the right hand side horizontally at its upper end. 4.2.4.5 The beam is placed on the upper end of the right string and connects both parts of the handrail with the string on the right hand side.BS EN 1502 pdf download.