Encapsulated spark gap and method of manufacturing

Details Encapsulated spark gap and method of manufacturing Encapsulated spark gap and method of manufacturing

1993-10-22

1995-09-12

DeBoer, Todd

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361120, 337 29, H02H 104, H02H 322

Patent

active

054502730

ABSTRACT:
In order to guarantee that the gas atmosphere of the structure of an encapsulated spark gap (9) is reliably protected from the effect of moisture, two flat discharge surfaces of two dish-type electrodes (1,6), each designed with a collar-shaped rim (2), abut on both sides of a thin insulating layer (4) having punched holes. A tubular glass insulator (3) is sealed on the front side into the collar-shaped rims of the two electrodes. During the course of their manufacturing, the electrodes are placed with their collar-shaped rim on the front sides of the glass insulator, are inductively heated and, under the action of an axially directed pressing force, are driven toward one another and pressed against the insulating layer. A spark gap of this type can be used as a secondary discharge gap for triple-electrode arresters.

REFERENCES:
patent: 3898533 (1975-08-01), Scudner, Jr.
patent: 4366412 (1982-12-01), Lange et al.
patent: 4912592 (1990-03-01), Flindall et al.
patent: 5142434 (1992-08-01), Boy et al.
patent: 5313183 (1994-05-01), Kasahara
patent: 5388023 (1995-02-01), Boy et al.

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