Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B9/00—Power cables
  • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
  • H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B11/00—Communication cables or conductors
  • H01B11/02—Cables with twisted pairs or quads
  • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
  • H01B11/10—Screens specially adapted for reducing interference from external sources
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
  • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
  • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B7/00—Insulated conductors or cables characterised by their form
  • H01B7/14—Submarine cables
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B7/00—Insulated conductors or cables characterised by their form
  • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
  • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
  • H01B7/22—Metal wires or tapes, e.g. made of steel
  • H01B7/228—Metal braid

Definitions

• FIG. 1 schematically illustrates a state of a core that may be included one or more times in a conventional submarine cable.
• the metal shielding layer 36 may be formed of a plurality of metal wires 36a arranged at intervals, which is more advantageous for movement or flexure of the submarine cable than a lead metal shielding layer.
• a metal tape 36b configured to enclose and conductively connect all the metal wires 36a may be additionally provided.
• a submarine cable including a shielding layer capable of sufficiently performing the path for fault current and shielding function, while simultaneously achieving excellent durability in dynamic environments, such as a dynamic section of a submarine cable, by considering dynamic characteristics in which deformation is continuously applied due to external force in a conducting state.
• the disclosure is directed to providing a submarine cable including a shielding layer capable of sufficiently performing the path for fault current and shielding function, while simultaneously achieving excellent durability in dynamic environments, such as a dynamic section of a submarine cable, by considering dynamic characteristics in which deformation is continuously applied due to external force in a conducting state.
• the disclosure is directed to providing a submarine cable.
• the submarine cable may include: at least one core including a conductor, an inner semiconductive layer surrounding the conductor, an insulation layer surrounding the inner semiconductive layer, an outer semiconductive layer surrounding the insulation layer, and a metal shielding layer surrounding the outer semiconductive layer; and a cable protection layer surrounding an outer side of the at least one core, in which the metal shielding layer includes a plurality of braided bodies, each formed by weaving braided strands in which a plurality of metal elementary wires are twisted together, and wherein the plurality of braided bodies are each formed by circumferentially winding, without overlapping with each other.
• each of the plurality of braided bodies may be at least partially in contact, at side surfaces of both ends thereof in a width direction, with a side surface of an adjacent braided body.
• each of the plurality of braided bodies may have a thickness of 1 to 2 mm.
• a total cross-sectional area of the plurality of braided bodies may be 0.5 to 8 mm 2
• a cross-sectional area of a single braided strand forming the braided body may be 0.08 to 0.26 mm 2
• a twisting pitch length of the braided strand may be 5 to 100 mm.
• FIG. 2 is a cross-sectional view illustrating one embodiment of a submarine cable according to the disclosure
• FIG. 3 schematically illustrates one embodiment of a core included in the submarine cable illustrated in FIG. 2 .
• a submarine cable 1000 according to the disclosure may be a three-phase alternating current power cable in which three cores 300a, 300b, and 300c are disposed in a triangular shape, as illustrated in FIG. 2 .
• a cable filler 400 may be provided to form the three cores 300a, 300b, and 300c into a circular shape, the cable filler 400 including fillers 400a, 400b, and 400c made of a plastic material and disposed in regions between adjacent cores.
• At least one of the fillers 400a, 400b, and 400c of the cable filler 400 may be provided with an optical fiber accommodating portion a, which may accommodate and mount at least one optical unit 100 having a plurality of optical fibers.
• the optical unit 100 may include at least one optical fiber 110 and a tube 120 that accommodates the optical fiber 110.
• Each optical unit 100 may include a predetermined number of optical fibers 110 mounted with a filling material inside the tube 120, and the tube may be made of a material having rigidity such as stainless steel.
• the optical unit 100 may further include a sheath 130 surrounding the tube 120.
• each braided body may be at least partially in contact, at side surfaces of both ends thereof in the width direction, with the side surface of an adjacent braided body, such that, when a fault current occurs, the fault current is shared throughout the entire metal shielding layer 360, thereby enabling the fault current path function to be performed more smoothly.

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• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Insulated Conductors (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=91324426

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (5)

• 2023
  • 2023-11-30 EP EP23898330.8A patent/EP4629266A1/fr active Pending
  • 2023-11-30 WO PCT/KR2023/019526 patent/WO2024117806A1/fr not_active Ceased
  • 2023-11-30 KR KR1020230170329A patent/KR20240081426A/ko not_active Ceased

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