Lightning rod for e.g. house, has pulse and power units that are switched on for respectively discharging ascending leader stroke, and maintaining propagation of leader stroke when value of ambient electric field in between two set values

摘要

Rod has power unit (P) for collecting and converting wind and solar energy (3a, 15, 16) into electric energy stored in capacitor (6), and pulse unit (I) for capturing and storing static electric energy near thunderstorm clouds in capacitor (7). When value of ambient electric field is between 2 set values, pulse unit and power unit are switched on for respectively discharging ascending leader stroke, and maintaining propagation of leader stroke.