FIELD: electricity.
SUBSTANCE: invention relates to high-voltage electric cables for transportation of electric power of increased frequency. Technical result is achieved by the fact that the high-voltage cable consists of four conductors for three-phase current of increased frequency, three of which are insulated with fluoroplastic. First conductor is single-core or multi-core and is located in the centre of a high-voltage three-phase coaxial cable. Subsequent conductors are made in the form of braiding or single-core. Each conductor is superimposed concentrically on insulation of the previous conductor. Cable additionally comprises two aramid bearing cables longitudinally laid on fourth conductor, wherein the fourth conductor and two longitudinally laid aramid bearing cables are covered with an outer insulating shell of light-stabilized cross-linked polyethylene.
EFFECT: higher reliability and safety of electric power transmission via high-voltage three-phase coaxial cable by elimination of sagging and stretching.
1 cl, 2 dwg
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