Lightning protector with ignition device with sliding electrical discharge along a dielectric

摘要

Lightening protector (100) with an arcing device comprising a central electrode (110) having a free end (111) and an end (112) connected to earth, an insulating piece (121) surrounding the central electrode and having an outer surface (121a) which is connected in a continuous manner to the free end, and an electrically conducting outer electrode (122) partially covering the said outer surface of the insulating piece in such a way that a non-covered part (121'a), connected to the free end of the central electrode, of the outer surface of the insulating piece defines an insulating bridge between the said outer electrode and the free end of the central electrode, the said outer-surface part forming the bridge making it possible to guide a spark between the outer electrode, electrically charged under suitable atmospheric conditions, and the free end of the central electrode during the discharging of the said outer electrode. IMAGE