DIN 27205-1:2024-08

This document has been prepared by Subcommittee NA 087-00-15-05 UA "Bremse" ("Brake") of Working Committee NA 087-00-15 AA "Zustand der Eisenbahnfahrzeuge" ("State of railway vehicles") at DIN Standards Committee Railway (FSF), in coordination with other FSF working committees the German Commission for Electrical, Electronic and Information Technologies (DKE). DIN 27205-1 applies to tread brakes on railway vehicles and deals with the mechanical part of single- and double-acting tread brakes and describes the technical target condition of the following assemblies: a) brake linkage including brake slack adjusters and friction elements; b) hand brake/parking brake; c) operating and changeover devices; d) brake cylinders (without functional testing). Recommendations for compact brake units are listed in the informative Annex A. The documents of the complete work "State of railway vehicles" contain technical specifications for safety-relevant and monitoring-requiring systems and components of standard gauge railway vehicles (standard gauge vehicles according to DIN 25003). This document specifies the limit state for the safe operation of standard gauge railway vehicles and their components. It shall be applied if the vehicles are operated on a public railway infrastructure. The minimum requirements for the processes for maintaining the target condition of railway vehicles specified in the standards shall also be applied. In addition, this document shall also be observed in new designs if design measures are to be taken to ensure compliance with the operating limit criteria. With the introduction of DIN EN 17018 and the publication of the revised DIN 27200:2021-03, an amendment to DIN 27205-1 is necessary.