Waterproofing of insulated electric cables

Details Waterproofing of insulated electric cables Waterproofing of insulated electric cables

1979-11-19

1982-04-20

Mayewsky, Volodymyr Y.

Electricity: conductors and insulators

With fluids or vacuum

With fluid stops

174 22R, 174 23C, 174116, H01B 1102

Patent

active

043260942

ABSTRACT:
The invention provides for the waterproofing of a telephone cable by the incorporation of longitudinal strands within the sheath alongside the insulated conductors. The strands have deposited thereon a moisture sensitive swelling agent, such as ethyl hydrogen cellulose, and in the event of the sheath rupturing and the conductors being exposed to moisture the swelling agent on the strands reacts with the moisture rapidly forming a plug which prevents further ingress of the moisture.

REFERENCES:
patent: 437330 (1890-09-01), Brooks, Jr.
patent: 2362963 (1944-11-01), Lee
patent: 2507508 (1950-05-01), Elliott et al.
patent: 3347974 (1967-10-01), Arendt et al.
patent: 3538235 (1970-11-01), Arendt et al.
patent: 3803339 (1974-04-01), Speekman
patent: 3999003 (1976-12-01), Chevrolet et al.
patent: 4004077 (1977-01-01), Woytiuk

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