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Selected Issues of Safe Operation of the Railway Traffic Control System in the Event of Exposition to Damage Caused by Lightning Discharges

Author

Listed:
  • Renata Markowska

    (Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45d, 15-351 Białystok, Poland)

  • Zofia Wróbel

    (PKP Polish Railway Lines JSC, Railway Lines Establishment in Rzeszów, St. Batorego 26 Str., 35-005 Rzeszów, Poland)

Abstract

Lightning discharge becomes a serious source of interference and damage for electronic and electrical power systems. Safe and reliable operation of railway traffic control systems requires proper protection against the effects of lightning. However, the current standards on lightning protection, PN-EN/EN/IEC 62305, do not cover railway objects. Moreover, there are no other standards or recommendations dedicated to the railway. The paper is an attempt to apply the procedure of lightning risk management according to PN-EN 62305-2 to select the proper protection measures in railway objects. A case study for the signal box with installed relaying and digital stations of the railway traffic control system is analyzed. The analysis comprises calculations based on the current standard PN-EN 62305-2:2012 but including the issues specific to railway traffic control. The risks of lightning losses have been calculated for two cases: without lightning protection measures and with protection measures proposed to decrease the risks below the tolerable values. The results show that a practically effective solution to reduce the risks is applying surge protective devices with proper characteristics. Another way is replacing unshielded incoming lines with shielded ones of given shield bonding way, and supplementing it with surge protective devices when necessary.

Suggested Citation

  • Renata Markowska & Zofia Wróbel, 2021. "Selected Issues of Safe Operation of the Railway Traffic Control System in the Event of Exposition to Damage Caused by Lightning Discharges," Energies, MDPI, vol. 14(18), pages 1-27, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5808-:d:635298
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