INFLUENCE OF GLAZED FROST AND HOAR FROST ON OVERHEAD CONTACT SYSTEMS AND THE PANTOGRAPHS OF ELECTRIC MOTIVE POWER UNITS
Although all known feasible methods of combating hoar frost or glazed frost on overhead contact systems were investigated, the selection of one single method valid in all circumstances and for the most severe meteorological conditions, was impossible. Immobilization of the pantograph was never caused by icing of the joints but always by the weight of the deposited ice. One method used to remove light hoar frost is to heat the contact wire with the traction current. For severe icing thawing is accomplished by passing a high current, about 2500A, through the contact wires.
- Question A-59. Restrictions on the use of this document are contained in the explanatory material.
International Union of RailwaysOffice of Research and Experiments
- Publication Date: 1968-1
- Features: Figures;
- Pagination: p. 20-22
- TRT Terms: Deicing; Frost; Ice; Pantographs; Railroad electrification; Technology
- Geographic Terms: Netherlands
- Old TRIS Terms: Question a59
- Subject Areas: Hydraulics and Hydrology; Railroads; Vehicles and Equipment;
- Accession Number: 00037473
- Record Type: Publication
- Report/Paper Numbers: ORE No. 26 Comm Rpt
- Files: TRIS
- Created Date: Nov 24 1975 12:00AM