High voltage, electric submarine cable with insulation of longit

Details High voltage, electric submarine cable with insulation of longit High voltage, electric submarine cable with insulation of longit

1979-03-08

1980-09-23

Askin, Laramie E.

Electricity: conductors and insulators

Underground

174 25R, 174 25G, 174 68R, H02G 902, H01B 714, H01B 906

Patent

active

042244625

ABSTRACT:
A submarine cable and an electric power line using such cable for transmitting electric power at high voltge from a first point adjacent the surface of a water body to a second point adjacent the surface of a water body, a portion of the cable lying in great water depths where the hydrostatic pressure is high. The cable comprises at least three sections, each section having its insulation dimensioned or selected for operation at the high voltage when subjected to the ambient pressures. The section, or sections, lying at great depths has insulation with a voltage breakdown strength which varies with pressure, the strength increasing with pressure, so that the insulation thereof may be less than would be required if the such sections were to be used under pressures less than those at the great depths.

REFERENCES:
patent: 4118593 (1978-10-01), Borroni
patent: 4132084 (1979-01-01), Francisco-Arnold
"Vancouver Island Tie Cable Ordered", Electrical World, Mar. 1, 1954, p. 52.
Gazzana-Priaroggia, R, et al., "The Long Island Sound Submarine Cable Interconnection", IEEE Spectrum, vol. 8, No. 10, Oct. 1971, pp. 63-71.
Bowers, W. E., "High Strength-to-Weight Cable for Deep Ocean Projects", Electrical Communication, vol. 49, No. 2, 1974, pp. 177-182.

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