Railway applications. Track. Switches and crossings - Requirements for wheel/rail interaction Ingestion-build-86103 5 % (m/m) of lead

5 % (m/m) of lead and 0

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and extending qualification

BS EN 658-4 applies to all-ceramic matrix composites with a continuous fibre reinforcement unidirectional (1D) and bidirectional (2D) and tri-directional (xD

Railway applications. Track. Switches and crossings - Requirements for wheel/rail interaction Ingestion-build-86103 5 % (m/m) of lead1 Scope This part of this European Standard specifies: characterisation of wheel and track dimensions; geometric design principles for wheel guidance; design principles for wheel load transfer; deciding whether movable crossings are needed. These are illustrated by their application to turnout components: switches; crossings; check rails. but the principles apply equally to more complex layouts.