DIN 27202-2:2014-09

Wear, failures and other damages affect the operational safety of railway vehicles. Depending on the tribological behaviour, the operational parameters and the current state of the railway vehicles and depending on the economic efficiency, a maintenance system has to be specified which ensures that the required technical target state is satisfied. DIN 27202 "State of railway vehicles - Superstructure and special equipment of vehicles" consists of: - Part 1: Vehicle superstructure; - Part 2: Buffing and draw gear; - Part 3: Steps, handles, hand rails, ladders, railings; - Part 4: Gangways; - Part 5: Moveable components of vehicle superstructure and doors (except doors of passenger areas); - Part 6: Safety equipment for load and transport protection; - Part 7: Rancher; - Part 8: Freight containers/Tanks; - Part 9: Installations which contain substances dangerous to water as well as tanks and pipe systems for flammable substances; - Part 10: Measurement of superstructures. These documents have been prepared by Subcommittee NA 087-00-15-02 UA "Fahrzeugaufbau und Sondereinrichtungen" ("Superstructure and special equipment of vehicles") of Working Committee NA 087-00-15 AA "Zustand der Eisenbahnfahrzeuge" ("State of railway vehicles") of the Railway Standardization Committee (FSF), in coordination with other working committees of the FSF and the German Commission for Electrical, Electronic and Information Technologies (DKE) and contains safety specifications. The standards of the complete works "State of railway vehicles" represent a uniform and system-compatible normative document which specifies rules for the operation and maintenance of standard gauge railway vehicles. The general scope of this document is specified in DIN 27200:2011-11, Clause 1 and 3.1.DIN 27202-2 "State of railway vehicles - Superstructure and special equipment of vehicles -Part 2: Buffing and draw gear" specifies the general provisions for the technical target state of buffers, buffing gear, conventional automatic couplings, close couplings and special designs. This standard shall be used by analogy for railway vehicles with deviating types of construction. The illustrations in this standard are of exemplary nature. The following modifications have been made with respect to DIN 27202-2:2004-05: a) foreword has been adopted; b) scope has been re-specified according to DIN 27200; c) normative references have been updated; d) Figure 1 "Buffer components" has been introduced; e) revision and restructuring of tables; f) Annex A for buffer markings according to UIC has been introduced; g) Annex B regarding the designation of buffing and draw gear has been introduced; h) Annex C regarding examples of coupling types has been introduced; i) Annex D regarding draw gear with draw-bar sleeve joint has been introduced; j) editorial revision.