STP1137: Improved Rail-Fastener Insulation for Stray-Current Control

    Galler, D
    managing engineersupervising electrical engineer, FaAA Electrical CorporationBay Area Rapid Transit, WestboroughOakland, MACA

    Todd, PL
    managing engineersupervising electrical engineer, FaAA Electrical CorporationBay Area Rapid Transit, WestboroughOakland, MACA

    Pages: 13    Published: Jan 1992


    Abstract

    In North America, dc powered transit systems use running rails for negative return of traction current. Insulated rail fasteners are used to electrically isolate the rails from earth and structures in order to minimize stray current and the resultant corrosion. The insulating surfaces of the rail fastener can become wet and contaminated in service so that leakage current paths develop. This paper describes the development and testing of improved rail fastener insulation.

    Keywords:

    Corrosion, dc powered, leakage current, negative return, rail fastener, running rails, stray current, traction current


    Paper ID: STP19761S

    Committee/Subcommittee: G01.14

    DOI: 10.1520/STP19761S


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