Extruded solid dielectric high voltage cables with multi-layer i

Details Extruded solid dielectric high voltage cables with multi-layer i Extruded solid dielectric high voltage cables with multi-layer i

1975-04-25

1977-06-28

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Making electrical conductors of indefinite length

156244, 174120R, 264174, H01B 702

Patent

active

040323811

ABSTRACT:
Electrical cables that carry higher voltage require insulation of greater thickness. This invention extrudes the insulation over a cable core and extrudes it in superimposed layers which fuse to one another to prevent formation of voids within the insulation. The insulation applied in each superimposed layer increases the impulse breakdown stress in volts per mil of insulation thickness. A high voltage cable for any given voltage can, therefore, have a thinner insulation if the insulation is applied in layers according to this invention instead of being applied in a single layer in accordance with the practice of the prior art.

REFERENCES:
patent: 3404432 (1968-10-01), White et al.
patent: 3441660 (1969-04-01), Garner
patent: 3502752 (1970-03-01), Brown
patent: 3828115 (1974-08-01), Hvizd

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