PROJECT TITLE :
On the Effects of Channel Tortuosity in Lightning-Induced Voltages Assessment
We have a tendency to present a study on lightning-induced voltages on overhead lines produced by tortuous lightning channels, by employing a recently developed tool referred to as CiLIV (Andreotti et al. 2015). CiLIV, initially developed for straight and vertical channels, is here extended to account for tortuosity. High-resolution stereoscopic images of six triggered lightning channels have been 3-D digitized and used as input information for CiLIV. The result is that tortuosity, usually ignored in lightning-induced voltage assessment, will instead play a vital role: an attempt is created in characterizing and quantifying these effects. It's shown that, in distinction to different lightning parameters, like channel-base peak current, that are log-normally distributed and generate log-normally distributed induced voltages too, tortuosity generates normally distributed induced voltages. It's additionally shown that these voltages will deviate up to 23% (relative standard deviation) from the mean price.
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