What Is the Effect of Outer Jacket Degradation on the Communication Parameters? A Case Study of the Twisted Pair Cable Applied in the Railway Industry

Damian Grzechca, Dariusz Zieliński and Wojciech Filipowski
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Damian Grzechca: Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, 16 Akademicka Street, 44-100 Gliwice, Poland
Dariusz Zieliński: Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, 16 Akademicka Street, 44-100 Gliwice, Poland
Wojciech Filipowski: Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, 16 Akademicka Street, 44-100 Gliwice, Poland

Energies, 2021, vol. 14, issue 4, 1-17

Abstract: Among the variety of problems encountered in transmission lines, the outer jacket degradation-derived faults of communication cables in railway applications have a significant impact on the transmission line parameters, especially if the cables are exposed to extremely varying environmental conditions, such as temperature deviation and humidity changes. In this paper, an advanced model of a twisted pair communication cable is proposed, together with approximated degradation functions for distributed parameters of the model, such as the shielding inductance, resistance, and capacitance per meter of cable length. This allows for gathering the distributed parameters for the proposed model under specific environmental conditions. The degradation functions for the parameters have been identified and compared with simulation results, including the communication speed and frequency band, and it has been confirmed that the transmission reliability depends on the cable condition. The authors discuss the influence of outer jacket degradation on signal behavior in terms of time and frequency domains that should be considered while developing new signaling devices for railway transportation.

Keywords: outer jacket degradation; aging effect; wire communication; railway industry; predictive maintenance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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