Mixed fluid impregnant for oil filled electric cables

Details Mixed fluid impregnant for oil filled electric cables Mixed fluid impregnant for oil filled electric cables

H - Electricity

01

B

337/17, 31/96

H01B 3/20 (2006.01) H01B 7/14 (2006.01) H01B 9/06 (2006.01) H01B 13/30 (2006.01)

Patent

CA 1039941

ABSTRACT OF THE DISCLOSURE: An underwater electric power cable in which the normal liquid impregnant, such as alkyl- aryl derivatives, polybutenes, polyisobutylenes, mineral oils, etc. having a specific gravity less than the specific gravity of water, is mixed with a second liquid having I specific gravity higher than that of water in proportions which will provide a mixture having a specific gravity substantially equal to that a the water in which the cable is immersed. The second liquid is miscible with the first liquid, and has low dielectric losses, ? low dielectric constant, a viscosity at least as low as that of the first liquid and a boiling point of at least 150°C. A halogenated hydrocarbon, such as hexachlorobutadiene, is a preferred second liquid.

222864

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