Sheet material for electrical insulation, prepreg and electrical

Details Sheet material for electrical insulation, prepreg and electrical Sheet material for electrical insulation, prepreg and electrical

1995-01-09

1997-11-25

Choi, Kathleen

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428377, 336182, 336223, B32B 1502

Patent

active

056910584

ABSTRACT:
An electrically insulated coil, characterized in that an electrical insulation layer wound around an electrical conductor is formed by laminating layers of glass flakes having a thickness of 0.2-1 .mu.m and a diameter of 40-250 .mu.m on a backing member of a sheet-like electrical insulation material and by impregnating with a semi-cured thermosetting resin. An electrically insulated coil is provided, having an excellent partial discharge resistance as well as having a high dielectric break down strength even when subjected to a large mechanical distortion.

REFERENCES:
patent: 3633140 (1972-01-01), Lake et al.
patent: 3723797 (1973-03-01), Andersson et al.
"Glass-Flake Paper--A New Electrical Insulation Material", Conklin et al, Electrical Manufacturing, Jun. 1958, pp. 87-91.

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