HIGH-VOLTAGE CABLE Russian patent published in 2016 - IPC H01B9/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, namely to transmission of electric energy via high-voltage cables with gas, liquid or vacuum insulation. High-voltage cable containing metal shell, insulation and inner conductor (1), pivotable relative to shell by means of insulation tie-rods (3) of rod-type with tips (4) fixed on intermediate metal bushings (2), installed on inner conductor have fastener braces (3) located in cavity of intermediate sleeves (2), in radial holes conjugated with nozzles (6), made in the form of a truncated cone with curvilinear generatrix, with its top positioned to the axis of intermediate sleeve, wherein the depth of attachment point is not less than the least radius of radial hole and not more than the radius of intermediate sleeve; on the surface of the inner conductor and intermediate sleeves there is a coating from a semiconductor or dielectric material, and cable insulation is gas, liquid or vacuum insulation.

EFFECT: invention ensures reduction of maximum electric field intensity at the location of insulation braces and higher electrical strength of insulation and reliability of high-voltage cable.

1 cl, 1 dwg