BEHAVIOUR OF PANTOGRAPHS AND OVERHEAD EQUIPMENT AT SPEEDS HIGHER THAN 169 KM/H. DB TESTS IN NIRM AND EILENDORF TUNNELS
This report contains details of tests carried out on the lines of the DB between Cologne and Aachen during July 1967. The primary object of the tests was to investigate, at speeds up to 200 km/h, the aerodynamic effects on the pantograph and contact system of entry into tunnels, and when passing other trains both inside and outside tunnels. The pantographs used and the overhead contact system in the test section are described. Measurements were made on the test-train of the pantograph trajectory and aerodynamic upward force on the pantograph, and a cine camera was used to record the vertical movements of the contact system at various locations. The effects of varying different parameters are discussed - speed, length of tunnel, type of pantograph. Instances of loss of contact are also examined. The general conclusion is that no detrimental effects result from the entry into a tunnel at high speed, or the passing of two trains in a tunnel, as far as current collection is concerned.
- Restrictions on the use of this document are contained in the explanatory material.
International Union of RailwaysOffice of Research and Experiments
- Publication Date: 1968-10
- Features: Appendices; Figures;
- Pagination: 22 p.
- TRT Terms: Aerodynamics; Electrical conductivity; Pantographs; Railroad electrification; Tunnels
- Identifier Terms: Deutsche Bahn; Deutsche Bundesbahn
- Old TRIS Terms: Conductor collector dynamics; High speed tests; Question a84
- Subject Areas: Bridges and other structures; Railroads;
- Accession Number: 00052714
- Record Type: Publication
- Source Agency: International Union of Railways
- Report/Paper Numbers: A84/RP 7/E
- Files: TRIS
- Created Date: May 14 1976 12:00AM