FIELD: electricity.
SUBSTANCE: invention deals with devices used for protecting electrical equipment and high-voltage power transmission lines against lightning overvoltage. The proposed lightning protector designed for electrical equipment units and power transmission lines consists of insulator body represented by bar, tape of cylinder of solid nonconductive material, two main electrodes mechanically connected to the insulator body and two or more intermediate electrodes. The intermediate electrodes are arranged between the main electrodes mutually shifted along the insulator body longitudinal axis or a spiral line and enable establishment of a discharge channel between adjacent electrodes. The electrodes referred to are arranged inside the insulator body with a stratum of nonconductive material isolating them from the surface. Between the adjacent electrodes couples there are dead end and open-ended discharge chambers arranged that extend to reach the insulator body surface and may be represented by rectangular or round holes in the insulator body. The power transmission line structure includes insulated supports and at least a single device of the design proposed providing for lightning protection of the power transmission line component parts.
EFFECT: improved reliability and simplified structure of lightning protectors.
25 cl, 19 dwg
