Railway applications. Railway rolling stock. Buffers
Railway applications. Railway rolling stock. Buffers
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What is BS EN 15551 – Requirements for buffers about? BS EN 15551 discusses railway applications. BS EN 15551 is an international standard that provides for requirements for buffers in railway rolling stock. BS EN 15551 outlines the requirements for buffers with 105 mm, 110 mm, and 150 mm stroke for vehicles or units which use buffers and screw coupling. BS EN 15551 covers the functionality, interfaces, and testing procedures, including pass-fail criteria, for buffers. BS EN 15551 defines the different categories of buffers, the space envelope, static and dynamic characteristics, and energy absorption. BS EN 15551 includes a calculation method to determine the minimum size of the buffer head to avoid override between buffers. BS EN 15551 defines the static and dynamic characteristics of elastic systems. BS EN 15551 also defines the requirements for buffers with integrated crash elements (crashworthy buffers) for tank wagons for dangerous goods. The requirements of BS EN 15551 also apply to buffers of locomotives and passenger coaches which need to meet the crashworthiness requirements of EN 15227 for normal service only. Typically, buffers with a stroke of 105 mm are used on freight wagons and locomotives, buffers with a stroke of 110 mm are used on coaches ...
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