Electricity: conductors and insulators – Lightning protection – Rods
Patent
1984-03-28
1985-09-10
Askin, Laramie E.
Electricity: conductors and insulators
Lightning protection
Rods
174 4R, H02G 1300
Patent
active
045408440
ABSTRACT:
In this device a point (100) is brought to a high tension potential by a generator (300). The grounding in case of lightning is effected by a rod (210) brought to the potential of the earth. A spark-gap device is constituted by the base (120) of the point and a crown (240) connected to the rod (210). According to the invention, to protect the dielectric interval of this spark gap, the base of the point is extended downwardly by a flared skirt (130) that covers the crown (240), at least partially, the visible portion (231) of the insulating sheath (230) is hollowed so as to remove its surface (232) from the armatures of the spark gap and there is given to the interior of the skirt (130) a surface condition that makes it possible to avoid any punctual deformation of the electric field.
REFERENCES:
patent: 4480146 (1984-10-01), Invernizzi
Langlois Pierre
Nicod Roger
Sautereau Michel
Askin Laramie E.
Societe Francaise Helita
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