Lightning conductor

Details Lightning conductor Lightning conductor

1986-12-17

1988-07-26

Askin, Laramie E.

Electricity: conductors and insulators

Lightning protection

Rods

174 4R, 361138, H02G 1300

Patent

active

047602139

ABSTRACT:
A lightning conductor having an electrically conductive surface element insulated from an earth rod. The surface element is substantially continuous, but has an aperture defining an air gap. The air gap is located near the top of the earth rod. In atmospheric conditions existing before lightning discharges, arcing occurs between the surface element and the earth rod. This creates plasma about the tip of the earth rod, leading to upward leader formation. A high impedance static drain may be connected between the surface element and the earth rod.

REFERENCES:
patent: 1477304 (1923-12-01), Allcutt
patent: 1477305 (1923-12-01), Allcutt
patent: 4480146 (1984-10-01), Invernizzi
patent: 4518816 (1985-05-01), Robert
patent: 4540844 (1985-09-01), Sautereau et al.
patent: 4565900 (1986-01-01), Arnau

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