HIGH-VOLTAGE DYNAMIC SUBMARINE CABLE

• Main Authors: XIE, Shuhong, PAN, Airong, PAN, Pan, WANG, Haitao, HU, Ming
• Format: Patent
• Language: English; French; German
• Published: 05.06.2024
• 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 an excellent radial water blocking effect, guarantees normal use of an ultra-clean high-voltage insulating material in deep and far-sea, high-salinity and high-water-pressure environments, provides guarantee for reliable operation of a floating booster station of future floating wind fields, and guarantees the use function of the high-voltage dynamic submarine cable.