Tiered convoluted shielded insulators

Details Tiered convoluted shielded insulators Tiered convoluted shielded insulators

1977-06-02

1978-11-14

Askin, Laramie E.

Electricity: conductors and insulators

Insulators

With moisture or dirt removing or shedding

174212, H01B 1750

Patent

active

041257421

ABSTRACT:
Optimized shielding configurations for longitudinally extended tiered insulators for electric power equipment is described. An insulator comprises a central core with a plurality of annular shields and radial partitions defining convoluted paths between the environment and the surface of the central core. An optimizing relationship of core diameter, tier separation, free path length and total path length between the outer surface and the inner core is disclosed for constructing insulators with maximum lifetime in contaminated environments. Selected generalized insulator configurations are disclosed which embody the invention. Also embodied in the invention is the addition of molecular sieve, insulating grease, or adhesives on the outer edges or lips to sorb out contaminants before they can reach the inner insulating surfaces.

REFERENCES:
patent: 1750318 (1930-03-01), Kaiser
patent: 1854459 (1932-04-01), Dienner
patent: 1994282 (1935-03-01), Lusignan, Jr.
patent: 3115543 (1963-12-01), Morrison
patent: 3207840 (1965-09-01), Sharp
patent: 3281525 (1966-10-01), Sonnenberg et al.

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