HIGH-VOLTAGE DYNAMIC SUBMARINE CABLE

• Main Authors: ZHU, Qingbin, XIE, Shuhong, PAN, Airong, PAN, Pan, WANG, Haitao, HU, Ming
• Format: Patent
• Language: Chinese; English; French
• Published: 10.02.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

A high-voltage dynamic submarine cable, comprising an electric unit, an optical unit (8), a filling strip, an inner sheath (9), an armor layer (10) and an outer sheath (11). The electric unit, the optical unit (8) and the filling strip are intertwisted to form a submarine cable core, and the submarine cable core is wrapped with the inner sheath (9) and the outer sheath (11); the armor layer (10) is arranged between the inner sheath (9) and the outer sheath (11); the electric unit comprises a conductor (1); a co-extrusion structure layer (2), a water-blocking buffer layer (3), a corrugated copper sleeve (4) and a split-phase sheath (5) are sequentially wrapped outside the conductor (1); a plurality of annular or threaded relief structures are rolled on the outer side face of the corrugated copper sleeve (4) in the axial direction; and the water-blocking buffer layer (3) and the split-phase sheath (5) are in contact with and fill the relief structures on the corrugated copper sleeve (4). The submarine cable has