FIELD: electricity.
SUBSTANCE: invention relates to current-collecting devices for the protection of electrical equipment and different structures and facilities against lightning overvoltages. The device includes an insulating body (1) made from a solid dielectric, two main electrodes (2, 3) mechanically attached to the insulating body, and intermediate electrodes (5) located on the insulating body (1) between the main electrodes with mutual displacement at least along the longitudinal axis of the insulating body. In a preferable version of the device, each intermediate electrode (6) is made in the form of a ring and provided with a pair of projections located on opposite end surfaces of the ring and mutually displaced in its circumferential direction at least through 90°. The insulating body and the additional electrode can be made in the form of a piece of a protective insulation layer and a piece of a wire respectively, which are located between the main electrodes. In this version, the first main electrode is made in the form of a biting-through clamp installed on the protective insulation layer and the second main electrode is connected either directly or through a spark discharge gap to the earth.
EFFECT: improving reliability and simplifying the design of protective devices against lightning impacts.
25 cl, 10 dwg
