Process for the production of a lightning arrester and products

Details Process for the production of a lightning arrester and products Process for the production of a lightning arrester and products

1987-08-31

1989-03-14

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Electrical device making

296101, 338 21, H01C 1702

Patent

active

048114782

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, monolithic 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: 4010440 (1977-03-01), Wellard
patent: 4069465 (1978-01-01), Kouchich et al.
patent: 4335417 (1982-06-01), Sakshaug
patent: 4729053 (1988-03-01), Maier et al.

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