Lightning arrester

Details Lightning arrester Lightning arrester

1988-10-26

1990-03-20

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361117, H02H 324

Patent

active

049106325

ABSTRACT:
A lightning arrester having an insulating cylinder which contains resistance elements made of zinc oxide which have a nonlinear voltage-current characteristic are stored. The insulating cylinder is fixed at least one sealing member having passages which connect the inside space of the insulating cylinder with the outside space thereof. These passages are covered with a material adapted to be softened or melted by a heat and are therefore closed in an air-tight manner. The arrester also includes an arc guide for producing arc type spark short-circuit externally of the insulating cylinder due to gas jetted from the passages upon an arc accident in the insulatng cylinder.

REFERENCES:
patent: 4001651 (1977-01-01), Kershaw, Jr.
patent: 4262318 (1981-04-01), Shirakawa et al.
patent: 4298900 (1981-11-01), Aydeenko et al.
patent: 4587592 (1986-05-01), Nakano et al.
patent: 4686603 (1987-08-01), Mosele

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