Electrical cable insulated with a tree-resistant ethylene polyme

Details Electrical cable insulated with a tree-resistant ethylene polyme Electrical cable insulated with a tree-resistant ethylene polyme

1982-09-28

1984-06-26

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

174110PM:120SC, 428372, B32B 1500, B32B 2700

Patent

active

044566557

ABSTRACT:
Propagation of electrical trees and water trees in electrical insulation made of ethylene homopolymers or copolymers with an unsaturated monomer is inhibited by the addition to the insulating composition of an organic carboxylic ester having at least one aromatic ring and at least three carboxylic ester groups, the ester being liquid at the operating temperature of the electrical equipment in which the insulation is used. The main utility of the inhibitors of this invention is in the primary insulation for power transmission cables, especially those used in high voltage applications.

REFERENCES:
patent: Re29099 (1977-01-01), Kietzman et al.
patent: 2964497 (1960-12-01), Kibler et al.
patent: 3223752 (1965-12-01), Tate et al.
patent: 3542684 (1970-11-01), Hunt
patent: 3639376 (1972-02-01), De Pierri, Jr. et al.
patent: 4206260 (1980-06-01), McMahon
patent: 4239803 (1980-12-01), Ohzeki et al.
patent: 4282333 (1981-08-01), Irie et al.
J. Nanu, M. Tolam, C. Coseriu (Rumanian Title and Text, English Abstract), Materiale Plastice 12, No. 3, 1975, pp. 138-142.

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