Extra-high-voltage power cable

Details Extra-high-voltage power cable Extra-high-voltage power cable

1989-10-13

1991-03-05

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

156 51, 174120SR, 264174, H01B 902

Patent

active

049979957

ABSTRACT:
An extra-high-voltage power cable is provided with extruded insulation 3 over a conductor 1 thereof. The insulation comprises an inner layer 5 of an unfilled high density polyethylene or polypropylene material having a higher electric strength than the material of the insulation adjacent thereto in an outer layer 6 thereof.

REFERENCES:
patent: 2717917 (1955-09-01), Isenberg
patent: 2877500 (1959-03-01), Rainer et al.
patent: 3580987 (1971-05-01), Priaroggia
patent: 3711631 (1973-01-01), Denes
patent: 4104481 (1978-08-01), Wilkenloh et al.
patent: 4132858 (1979-01-01), Anderson et al.
patent: 4310597 (1982-01-01), Checkland et al.
patent: 4604497 (1986-08-01), Bell et al.

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