Influence of soil structures on corrosion performance of floating-DC transit systems

C. Charalambous, I. Cotton

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The production of stray currents by DC-transit systems leads to the corrosion of nearby buried metallic structures, such as pipelines and cable sheaths. The paper details the corrosion performance of a DC transit system with a floating return rail, for a number of different soil-resistivity structures: uniform, horizontal and vertical-layer models. This builds on previous work carried out in homogenous soils. It is shown that a variation in soil type along the route of a transit system can lead to high local leakage-current densities on buried metallic structures, increasing their vulnerability to corrosion damage. © The Institution of Engineering and Technology 2007.
    Original languageEnglish
    Pages (from-to)9-16
    Number of pages7
    JournalIET Electric Power Applications
    Volume1
    Issue number1
    DOIs
    Publication statusPublished - 2007

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