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Electrode resistance is a typical measure of whether a buried electrode meets the design criteria of the electrode. In this context, IEC 62305 promulgates a value of 10 Ω as maximum value for adequate lightning protection. In this paper it is argued that, in addition to electrode resistance, lightning ground potential rise is another important parameter to be considered by the design engineer. This,...
This paper presents a study of lightning induced surges in railway signaling systems with the FDTD method. During an indirect lightning strike, induced surges are observed in the outdoor circuits due to electric and magnetic coupling. The induced surge currents propagate along the signal cables towards the receiving equipment in railway stations. It is found that geometry of the outdoor lines, earthing...
The paper presents a methodology and example results of experimental measurements of surge currents and potentials in a radio base station. The goal of the experiment was to provide complex information on the performance of a radio base station affected by surge currents. Such information may be used in further analysis of lightning threat. The presented method is based on the idea of simulation of...
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