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US 4,665,460 AGranted
Device for protecting overhead electroconducting lines against lightning
OwnerJean-Paul Schaffinventor
Life of this patent
Estimating the term…
Abstract
A lightning protector for overhead electric lines comprises at least one of the following elements: a spark-arrester (111,112) a ground lead and a device for the connection of electric cables. Measures for reducing the impedance of the elements forming the circuit for the discharge to the ground of the shock wave due to atmospheric charges are proposed.
Claims12
In an overhead transmission line arrangement in which a line conveying electrical power terminates at one end of an insulator whose other end is linked to a mast anchored in the ground, a lightning protector for the line comprising:
- (A) a ground connection buried in the ground;
- (B) first and second electrodes in spaced relation mounted above the insulator by first and second supports each including a conductive transverse section having an input and an output, the first and second electrodes being respectively secured to and projecting from the inputs of the sections of the first and second supports, said electrodes and said transverse sections being formed of non-magnetic metal to provide a very low impedance path with respect to electric discharges of the type produced by lightning;
- (C) a first cable connecting the output of the first transverse section to the line at a connection point thereon displaced from the one end of the insulator;
- and
- (D) a second cable connecting the output of the second transverse section to said ground connection.
2 more elements
Dependencies are inferred from the claim text.