Filling compound for multi-wire conductor of an electrical cable

Details Filling compound for multi-wire conductor of an electrical cable Filling compound for multi-wire conductor of an electrical cable

1986-05-16

1987-10-27

Nimmo, Morris H.

Electricity: conductors and insulators

With fluids or vacuum

With fluid stops

174 23R, 174102SC, 174105SC, H01B 728

Patent

active

047031328

ABSTRACT:
A water migration resisting filler for filling the interstices of a stranded conductor, an electrical power transmission cable including such filler and a method of making such cable. The filler includes a polymeric compound having a 100 gram needle penetration value between 50 and 100 tenths of a millimeter at 25.degree. C. and particles of a water swellable material having a particle size of not greater than 200 microns are in contact with the polymeric compound either by admixing it with the compound or applying it to the surface thereof. In the method, the polymeric compound is flowed around the wires of the conductor as they are stranded together and the water swellable material is either admixed with the compound or applied thereto as the conductor is formed, a semi-conductive layer is extruded around the so-filled conductor and a layer of insulation is extruded around the semi-conductive layer.

REFERENCES:
patent: 3347974 (1967-10-01), Arendt et al.
patent: 3558801 (1971-01-01), Eilhardt
patent: 3943271 (1976-03-01), Bahder et al.
patent: 4095039 (1978-06-01), Thompson
patent: 4104480 (1978-08-01), Thompson
patent: 4105619 (1978-08-01), Kaufman et al.
patent: 4145567 (1979-03-01), Bahder et al.
patent: 4435613 (1984-03-01), Gaubert

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