Lightning-conducting insulators

Details Lightning-conducting insulators Lightning-conducting insulators

1987-07-10

1988-08-02

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361132, 174139, H02H 904

Patent

active

047617071

ABSTRACT:
A lightning-conducting insulator is disclosed, which comprises an insulator body consisting of a shed portion, a plurality of rib portions provided inside the shed portion, and a cup-like cylindrical head portion at a central upper portion of the shed portion, and a metal cap put and fixed onto the head portion, and a metal pin inserted and fixed inside the head portion. A cylindrical fitting section with a through hole is provided in the shed portion. At least one current-limiting element having a non-linear voltage-current characteristic is inserted into the through hole of the cylindrical fitting section. The cylindrical fitting section is sealed with a glass- and ceramics-bonding metal solder such that the upper and lower end faces of the current-limiting element and the end faces of the cylindrical fitting section may be continuously sealed.

REFERENCES:
patent: 3770877 (1973-11-01), Mashikian et al.
patent: 3963858 (1976-06-01), Cheng et al.

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