Risks assessment for lightnings strokes in wind farm installation

Lightning protection of wind turbines — A comparison of lightning data & IEC 61400-24

“…The blades are shown to capture lightning strokes with lower peak currents in comparison to the windvane. This is something contradictory to the typical downward lightning attachment models such as the electro geometric model [23]. However, in both the cases, the median value of the peak currents lies between 6-10 kA, much less than the median values of the first return and the subsequent strokes defined in the literature for downward strokes (30kA and 12kA respectively) [9].…”

Lightning protection of wind turbines – a comparison of measured data with required protection levels

“…As would be expected, the blades are shown to capture lightning strokes with the higher peak currents. This is something predicted by the typical downward lightning attachment models such as the electro geometric model [27]. However, in all cases, the mean value of the peak currents lies between 6-8 kA, much less than the mean values of the first return and the subsequent strokes defined in the literature for downward strokes [28].…”