Standards Development
This document establishes requirements for the electrical aspects to achieve technical compatibility between rolling stock and electric traction systems, limited to: — co-ordination of protection principles between power supply and traction units, i.e. separation sections, train set current or power limitation, short circuit current discrimination, breaker coordination and use of regenerative braking. — co-ordination of installed power on the line and the power demand of trains, i.e. traction unit power factor, train set current or power limitation, electric system performance, type and characterization. — compatibility assessment relating to harmonics and dynamic effects. Informative values are given for some parts of the existing European railway networks, in annexes. NOTE For those railways within the scope of EU Interoperability Directive, definitive values are set out in the register of infrastructure published in accordance with Article 49 of Directive (EU) 2016/797, and the list of items included in the register is described in the commission decision (EU) 2019/777. The following electric traction systems are within the scope of this document: — railways; — guided mass transport systems that are integrated with railways; — material transport systems that are integrated with railways. Information is given on electrification parameters to enable train operating companies to confirm, after consultation with the rolling stock manufacturers, that risks of non-compatibility are minimized and that there will be no consequential disturbance on the electrification system. The interaction between pantograph and overhead contact line is dealt with in EN 50367:2020. The interaction with the control-command and signalling subsystem is not dealt with in this document. Basic considerations have been included concerning the use of traction units with onboard electric traction energy storage in the electric traction power system. Note: Details are dealt with in TS 50729:2025.”
Main justifications: • Part 2 exists since this year 2025 and this EN 50388-1 should refer to it • The return of experience on this document for 3 years (version 2022) gives the opportunity to improve the text, without fundamental changes • Comments rejected by CCMC in 2022 are worked, including those from HAS consultant • Errors detected by users are corrected, • Comments received on part 2 which have an influence on part 1 are included, • The title is adapted to a 3-level title, • Need for coherence among documents from SG19 proposal on protections (EN 50633) and WGC01 on thermal design while short circuit (EN 50122), • Input from TS 50729 for on-board electric traction energy storage systems All these comments and items worked are included in the compilation of comments attached. Attached: • the compilation of comments with the proposed changes • the new version of the standard These documents are the result of the work of the SC9XC/WGC11 work with a complete level of approval
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