An Outline of Lightning Research Development in Poland

Loboda, Marek; Flisowski, Z.; Maslowski, Grzegorz; Wojtas, S.

doi:10.1109/iclp.2018.8503364

Cited by 1 publication

(3 citation statements)

References 15 publications

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“…Risk analysis allows for the evaluation of risks occurring in a structure or service device as a result of the cloud or ground lightning discharges [2][3][4][5][6][7][8]. As a result of the analysis, a decision can be made to apply protection measures to minimize losses in the structure or service device [9][10][11][12][13][14]. The analysis makes the rational selection of protection measures possible, which will be optimally suited to the type of structure, its equipment, and the method of use [15,16].…”

Section: Lightningmentioning

confidence: 99%

“…However, such risk assessment takes into account not only the threat to living creatures and material losses caused by direct lightning strikes but also the impact of nearby ground discharges [18,[28][29][30][31][32][33][34]. The impact on the installations in the building or the devices connected to it, in the form of conducted and induced couplings, is also significant [4][5][6]10,12]. As a result of risk analysis, it is possible to make decisions regarding the application of protection measures that allow for minimizing losses in the structure or service device.…”

Section: Lightningmentioning

confidence: 99%

“…This is the number of direct ground lightning discharges per km 2 per year. For the area where the structure is located-the signal box (St) (Figure 3), based on the lightning earth discharge density map [12], the value of Ng is 2.7 lightning flashes per km 2 per year. The environment around the object is a significant factor for the number of possible direct and indirect lightning discharges.…”

Section: Description Of the Structure And Its Environmental Parametersmentioning

confidence: 99%

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The Risk of Lightning Losses in a Structure Equipped with RTC Devices According to the Standard EN 62305-2.2008

Wróbel¹,

Jagiełło

2021

Energies

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Incorrect adjustment of railway traffic control devices (rtc) to the specificity of the area in terms of lightning density may result in their damage by lightning-caused electromagnetic pulses. An associated risk assessment, as the standard in the analyses of the strength of rtc devices, should be made. However, manufacturers of rtc devices typically do not perform tests with respect to such high overvoltage conditions. Particularly in the case of the EN 62305-2 standard, the manufacturers of new rail traffic control devices usually do not carry out such analyses. In this paper, an analysis of the damage vulnerability of rtc devices caused by lightning discharges for a selected structure, including a signal box equipped with digital rtc devices is presented. The necessity of conducting a lightning damage vulnerability analysis for rtc devices is demonstrated. A part of the railway track where lightning discharges occur was analyzed. The results of the risk analysis obtained with the use of the DEHN Risk Tool software and based on the standard EN 62305-2 (2008, Lightning protection. Part 2. Risk management) are presented. Due to the fact that railway devices are not included in the current standard, three documents were adopted for the analysis: two editions of EN/IEC 62305-2 (from 2008 and 2012) and the recommendations of the ITU-International Telecommunication Union ITU-T K.39 (10/1996). The presented analysis is performed according to the 2008 standard version and to the chosen device.

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