Lightning arrester including an active resistor core

Details Lightning arrester including an active resistor core Lightning arrester including an active resistor core

1987-08-31

1989-03-28

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361118, H02H 104

Patent

active

048169595

ABSTRACT:
A lightning arrester with a monolithic, active resistor core made of voltage-dependent resistance material based on ZnO is produced by mixing and grinding the base materials ZnO+metal oxides, producing pourable granules, filling into a silicone rubber tube and pressing cold-isostatically or radially into a moulding, sintering of the moulding into a self-supporting, monnolithic resistor core, converting the resistor core, with an insulator by casting around, coating or painting with an epoxy resin, silicone material or concrete polymer or by drawing over a shrink-fit tube or by glazing. The resultant lightning arrester has a simple configuration, good reproducibility, cost-effective mass production.

REFERENCES:
patent: 3806765 (1974-04-01), Matsuoka et al.
patent: 4069465 (1978-01-01), Kouchich et al.
patent: 4262318 (1981-04-01), Shirakawa et al.
patent: 4377541 (1983-03-01), Bobik
patent: 4587592 (1986-05-01), Nakano et al.

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