Electrical power cable with stranded insulated wires

Details Electrical power cable with stranded insulated wires Electrical power cable with stranded insulated wires

1978-03-15

1980-06-10

Kucia, Richard R.

Electricity: conductors and insulators

With fluids or vacuum

Conduits, cables and conductors

174 25R, 174110SR, 174128R, H01B 730

Patent

active

042074274

ABSTRACT:
An electric power cable having a Milliken-type conductor comprising at least four sectors, the conductor being paper-insulated and oil filled and each sector comprising metal wires stranded together. Each wire is covered with a layer of a cross-linked synthetic resin having a thermal classification of 120.degree. C., a CEI resistance to abrasion of at least 50 cycles, a CEI thermal pressure value higher than 170.degree. C. and an insulating oil contaminating effect of substantially zero, such resin also being substantially completely volatizable by the heat used for joining cables by welding. Preferred resins are a polyvinyl-acetal resin, such as a polyvinyl-formal resin, cross-linked with a phenol resin and, optionally, a melamine resin and such with the addition of a blocked isocyanate.

REFERENCES:
patent: 1904162 (1933-04-01), Milliken
patent: 2085995 (1937-07-01), Patnode
patent: 2286759 (1942-06-01), Patnode
patent: 2307588 (1943-01-01), Jackson
patent: 2308638 (1943-01-01), Balthis
patent: 2314694 (1943-03-01), Dodds
patent: 2972658 (1961-02-01), Lapsley
patent: 3069379 (1962-12-01), Lavin
patent: 3077462 (1963-02-01), Fitzhugh
patent: 3164670 (1965-01-01), Ege
Sykes, J. H. Discuss EHV Underground Cable System, Electrical World, vol. 163, No. 20, May 17, 1965, p. 114.

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