BS EN 17397-1:2020 pdf free.Railway applications – Rail defects.Rail defect management.
BS EN 17397-1 This document specifies the defect management system the infrastructure manager uses to control the risk of severe accidents due to degradation of internal or surface defects on rails complying with EN 13674-1, EN 13674-2, EN 13674-4 and EN 15689:2009 (excluding grooved rails EN 14811一which need alternative systems).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 16729-3:2018, Railway applications – Infrastructure – Non-destructive testing on rails in track – Part 3:Requirements for identifyving internal and surface rail defects For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:一IEC Electropedia: available at http://www.electropedia.org/ 一ISO Online browsing platform: available at https://www.iso.org/obp An infrastructure manager shall put a framework in place to monitor the condition of its assets. If the
infrastructure becomes deteriorated, it needs to be renewed or repaired. This can be for economic reasons or, typically at a later state in the development and propagation of the defect, due to safety reasons.There are a wide variety of rail defects that lead to damaged or defective rail. These defects can be
grouped and categorized by a system.The classfication of the defect types along with the internationally widely used numbering scheme can be found in the Annex A of this document.The IM shall implement a testing framework (appropriate NDT methods and inspection frequencies) to inspect rail to detect the defects considered relevant by the IM. The testing frequency should be designed to mitigate the risk that a detectable defect propagates to a critical size leading to failure.The standard EN 16729-3:2018 describes how several of the most relevant defects can be detected using various methods of NDT.BS EN 17397-1 pdf download.