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Life-Cycle Assessment of a Railway Electric Power Feeding Cable for Replacement Planning: A Case Study of an Electric Railway in Korea

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Abstract

Electric railways are subjected to preventive maintenance to maintain a stable supply of electric energy to railway vehicles. The feeder cable is the main equipment of an electric railway that supplies stable electric energy to the Overhead Contact Line. The airport railway in Korea has many bridge sections and a feeder cable is used to secure the insulation distance from the messenger wire. A bridge section is a complex structure consisting of two stories, and the railway section on the lower story consists of a structure similar to the tunnel on the upper story. However, the insulation equipment on the lower story is decontaminate from natural environment such as rain, snow, tunnel and see. The lower story is closer to exposed locations such as the sea, and the degradation rate is high due to salt damage. In this paper, we propose a method for increasing the life expectancy of insulation equipment installed in a section subject to salt damage. Therefore, the insulation performance of the feeder cable installed on a sea bridge was measured. The life-cycle assessment was shown in a health index by applying a weighted average. In addition, the life expectancy was predicted by considering the health index and the remaining life.

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Acknowledgements

This research was supported by a grant from R&D Program of the Korea Railroad Research Institute, Republic of Korea

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Authors and Affiliations

  1. Department of Electrical System Engineering, Hanbat National University, Daejeon, Republic of Korea

    Young Park

  2. Department of Transportation Engineering, Korea University of Science and Technology, Daejeon, Republic of Korea

    Kyung-Min Na

  3. Smart Electrical and Signaling Division, Korea Railroad Research Institute, Uiwang, Republic of Korea

    Hosung Jung

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  1. Kyung-Min Na
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  2. Hosung Jung
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  3. Young Park
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Correspondence to Young Park.

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Na, KM., Jung, H. & Park, Y. Life-Cycle Assessment of a Railway Electric Power Feeding Cable for Replacement Planning: A Case Study of an Electric Railway in Korea. J. Electr. Eng. Technol. 16, 2275–2280 (2021). https://doi.org/10.1007/s42835-021-00726-4

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  • DOI: https://doi.org/10.1007/s42835-021-00726-4

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