EP4163933A1 - Dynamisches und statisches unterwasserkabel mit durchgehender drahtseele und herstellungsverfahren dafür - Google Patents

Dynamisches und statisches unterwasserkabel mit durchgehender drahtseele und herstellungsverfahren dafür Download PDF

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Publication number
EP4163933A1
EP4163933A1 EP20945294.5A EP20945294A EP4163933A1 EP 4163933 A1 EP4163933 A1 EP 4163933A1 EP 20945294 A EP20945294 A EP 20945294A EP 4163933 A1 EP4163933 A1 EP 4163933A1
Authority
EP
European Patent Office
Prior art keywords
dynamic
section
static
layer
armor layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20945294.5A
Other languages
English (en)
French (fr)
Other versions
EP4163933A4 (de
Inventor
Pan Pan
Xuechao NIU
Busheng CHEN
Ming Hu
Shuhong XIE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongtian Technology Submarine Cable Co Ltd
Original Assignee
Zhongtian Technology Submarine Cable Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongtian Technology Submarine Cable Co Ltd filed Critical Zhongtian Technology Submarine Cable Co Ltd
Publication of EP4163933A1 publication Critical patent/EP4163933A1/de
Publication of EP4163933A4 publication Critical patent/EP4163933A4/de
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • 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
    • 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
    • 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
    • H01B7/226—Helicoidally wound metal wires or tapes
    • 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
    • H01B7/24—Devices affording localised protection against mechanical force or pressure
    • 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable

Definitions

  • the present application relates to the technical field of submarine cables, particularly, relates to dynamic and static submarine cable with continuous wire core and production method therefor.
  • the dynamic submarine cable in the prior art usually consists of a cable core for current transmission and an optical core for optical signal transmission, which are twisted to form the submarine wire core, and several sheath layers, armor layers, etc. are set outside. Dynamic submarine cables are gradually developing towards direction of large water depth, high voltage and large capacity signal transmission, and the corresponding protection requirements for dynamic submarine cables are also gradually improved.
  • the dynamic submarine cable will bear a direct load caused by floating body shaking and wave current, which will increase the risk of damage to the dynamic submarine cable and supporting accessories.
  • the distance from the floating body operating in deep water environment to the seabed or shore access equipment usually reaches hundreds of kilometers.
  • the laying distance of the whole submarine cable is long.
  • section of cable conductor is usually designed to be large, and the cost increases sharply.
  • a dynamic section and a static section of the submarine cable are usually produced separately.
  • the static section applies a single layer of armor without extruding the outer sheath.
  • the static section and the dynamic section are connected through a joint box.
  • the electrical cables in the joint box are connected through soft connectors or prefabricated hard connectors, and the optical cables are connected through a splice box.
  • the dynamic section and the static section are considered to adopt a whole piece method.
  • the whole piece method will lead to a significant increase in the cost.
  • the static section submarine cable is very easy to be broken during a sheath damage accident.
  • seawater Under high water pressure, seawater rapidly penetrates into the whole cable along the armor layer, and may be pressed into the electrical equipment cabin, causing a short circuit accident.
  • a main purpose of the present application is to provide a dynamic and static submarine cable with a continuous wire core, which includes a static section and a dynamic section with uninterrupted wire core.
  • a transition section is positioned between the static section and the dynamic section.
  • a sealing assembly is installed on the transition section. Power and communication transmission systems can be connected without manual connectors to ensure stability and safety of long-distance transmission, while meeting requirements of submarine cable protection.
  • Another purpose of the present application is to provide a production method of dynamic and static submarine cable with continuous wire core.
  • the wire core is continuously produced, an armor layer and a jacket layer are formed outside the wire core.
  • the armor steel wires of the armor layer are cut off at the transition section, and the sealing assembly is installed in a matching manner to improve the manufacturing efficiency and reduce the manufacturing cost.
  • the present application provides a dynamic and static submarine cable with a continuous wire core, including the continuous wire core, a static section, a dynamic section, and a transition section positioned between the static section and the dynamic section, an inner jacket is formed on the exterior of the wire core through extrusion, and a part of the inner jacket positioned at the transition section is selected and marked as a transition point; armored steel wires are twisted on the inner jacket to form at least one inner armored layer, and the position on the inner armored layer corresponding to the transition point is marked; armored steel wires are twisted from the dynamic section to the transition section to form at least one outer armored layer, and the outer armor layer extends to the transition section, the inner armored layer and the outer armored layer are cut off at the transition point, and the parts of the inner armored layer and the outer armored layer at the transition section are combined to install a sealing assembly.
  • the static section includes a static inner armor layer and an outer covering layer, the static inner armor layer is wrapped on the exterior of the inner jacket, the outer covering layer is wrapped on the exterior of the static inner armor layer; the static inner armor layer extends to the transition point, the outer covering layer extends to the junction of the static section and the transition section, the static inner armor layer in the transition section is bent at 90 °.
  • the dynamic section includes a dynamic inner armor layer, a dynamic outer armor layer, and an outer sheath, the dynamic inner armor layer is wrapped on the exterior of the inner jacket, the dynamic outer armor layer is wrapped on the exterior the dynamic inner armor layer, and the outer sheath is wrapped on the exterior of the dynamic outer armor layer; the dynamic inner armor layer extends to the transition point, the dynamic inner armor layer and the dynamic outer armor layer in the transition section expand into an umbrella shape.
  • the sealing assembly comprises a static section anchor, a dynamic section anchor, and a sealing ring
  • the dynamic inner armor layer and the dynamic outer armor layer of the transition section are positioned in a cavity of the dynamic section anchor
  • the sealing ring is positioned in the cavity of the dynamic section anchor
  • the sealing ring is installed on the inner jacket
  • an inner portion of the dynamic section anchor is filled with steel wire fastening glue
  • the static section anchor and the dynamic section anchor are matched to clamp the static inner armor layer in the transition section, and the static section anchor is locked with the dynamic section anchor through bolts, an inner portion the static section anchor is filled with resin glue.
  • the armor steel wires of the inner armor layer and the outer armor layer are in medium carbon galvanized steel wires.
  • the armor steel wires are twisted on the inner jacket to form two layers of inner armor layers, and the armor steel wires are twisted from the dynamic section to the transition section to form two layers of outer armor layers.
  • the present application further provides a production method of dynamic and static submarine cables with continuous wire core, which is configured to produce the dynamic and static submarine cables with the continuous wire core, the producing method includes following steps:
  • the dynamic section anchor is fixed at a position where the dynamic section enters a take-up reel in step (E).
  • step (F) the sealing ring is pre tensioned and deformed through stainless steel clips and bolts.
  • the present application discloses a dynamic and static submarine cable with continuous wire core and its production method, which has the advantages of: the dynamic and static submarine cable with continuous wire core has no manual joint connection, low transmission loss, high stability and safety; the dynamic and static submarine cable with the continuous wire core has good protection performance and can effectively avoid operation accidents; the production method of the dynamic and static submarine cable with continuous wire core has high efficiency, can be achieved without modifying the existing production equipment, and has low cost.
  • a dynamic and static submarine cable with continuous wire core includes a continuous wire core 10, a static section 11, a dynamic section 12 and a transition section 13.
  • the transition section 13 is positioned between the static section 11 and the dynamic section 12, and the transition section 13 is combined with a sealing assembly 20.
  • the wire core 10 includes cable cores and optical cable cores. The cable cores and the optical cable cores are produced continuously and twisted into bundles by vertical cabling machine.
  • An inner jacket 101 is formed on the exterior of the wire core 10 through extrusion, and a part of the inner jacket 101 positioned at the transition section 13 is selected and marked as a transition point 131.
  • Armor steel wires are twisted on the inner jacket 101 to form at least one inner armored layer, and the position on the inner armored layer corresponding to the transition point 131 is marked. Armor steel wires are twisted from the dynamic section 12 to the transition section 13 to form at least one outer armored layer, and the outer armor layer extends to the transition section 13. The inner armored layer and the outer armored layer are cut off at the transition point 131, and the parts of the inner armored layer and the outer armored layer at the transition section are combined to install the sealing assembly 20.
  • the sealing assembly 20 can be used as a fixing pin to butt and fix with a seabed fixing device, so as to prevent large underwater offset of the dynamic submarine cable due to external loads.
  • the armor steel wires are twisted on the inner jacket 101 to form two layers of inner armor layers, and the armor steel wires are twisted from the dynamic section 12 to the transition section 13 to form two layers of outer armor layers, increasing the unit weight and strength of the submarine cable, improving service environment adaptability of the submarine cable, so as to meet the requirements of large water depth and severe environmental loads.
  • the static section 11 includes a static inner armor layer 111 and an outer covering layer 112.
  • the static inner armor layer 111 is wrapped on the exterior of the inner jacket 101, and the outer covering layer 112 is wrapped on the exterior of the static inner armor layer 111.
  • the static inner armor layer 111 extends to the transition point 131, and the outer covering layer 112 extends to the junction of the static section 11 and the transition section 13.
  • the static inner armor layer 111 in the transition section 13 is bent at 90 °, perpendicular to the axis of the wire core 10, and the armor steel wires of the static inner armor layer 111 is paved all around.
  • the outer covering layer 112 is formed by stranding PP rope, and the armor steel wires are medium carbon galvanized steel wire.
  • the dynamic section 12 includes a dynamic inner armor layer 121, a dynamic outer armor layer 122, and an outer sheath 123.
  • the dynamic inner armor layer 121 is wrapped on the exterior of the inner jacket 101
  • the dynamic outer armor layer 122 is wrapped on the exterior the dynamic inner armor layer 121
  • the outer sheath 123 is wrapped on the exterior of the dynamic outer armor layer 122.
  • the dynamic inner armor layer 121 extends to the transition point 131
  • the outer sheath 123 extends to the junction of the dynamic section 12 and the transition section 13.
  • the dynamic inner armor layer 121 and the dynamic outer armor layer 122 in the transition section 13 expand into an umbrella shape.
  • the outer sheath 123 is formed through extrusion.
  • the seal assembly 20 includes a static section anchor 21, a dynamic section anchor 22, and a seal ring 23.
  • the static section anchor 21 is installed from one side of the static section 11 to the transition section 13, and the dynamic section anchor 22 is installed from one side of the dynamic section 12 to the transition section 13.
  • the dynamic inner armor layer 121 and the dynamic outer armor layer 122 of the transition section 13 are positioned in a cavity of the dynamic section anchor 22.
  • the sealing ring 23 is positioned in the cavity of the dynamic section anchor 22, and the sealing ring 23 is installed on the inner jacket 101, which is located inside the dynamic inner armor layer 121 and the dynamic outer armor layer 122 of the transition section 13.
  • An inner portion of the dynamic section anchor 22 is filled with steel wire fastening glue.
  • the sealing ring 23 is a Harvard-typed sealing ring, including two symmetrical parts 231 and 232.
  • the sealing ring 23 adopts high elastic modulus to meet the requirements of large deformation and undamaged rubber materials.
  • the sealing ring 23 is pre tensioned by stainless steel clips and bolts to meet the sealing requirements.
  • the static section anchor 21 is matched with the dynamic section anchor 22 to clamp the armor steel wires of the static inner armor layer 111 in the transition section 13, and the static section anchor 21 is locked with the dynamic cable anchor 22 through bolts. After locking, the static section anchor 21 is filled with resin glue, and a cavity of the static section anchor 21 is filled.
  • the static section anchor 21 is in Harvard-typed structure, including two parts 211 and 212. In other embodiments, the static section anchor 21 can also be an integral structure.
  • the present application further discloses a production method of dynamic and static submarine cables with continuous wire core, which is configured to produce the dynamic and static submarine cables with continuous wire core, including the following steps:
  • step (E) the dynamic section anchor is fixed at the position where the dynamic section enters a take-up reel, so that the dynamic section can pass through an anchor hole smoothly.
  • step (F) the sealing ring is pre tensioned and deformed through stainless steel clips and bolts to improve the sealing performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
EP20945294.5A 2020-07-16 2020-11-05 Dynamisches und statisches unterwasserkabel mit durchgehender drahtseele und herstellungsverfahren dafür Pending EP4163933A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010685624.7A CN111899927B (zh) 2020-07-16 2020-07-16 一种线芯连续的动静态海缆及其生产方法
PCT/CN2020/126783 WO2022011897A1 (zh) 2020-07-16 2020-11-05 一种线芯连续的动静态海缆及其生产方法

Publications (2)

Publication Number Publication Date
EP4163933A1 true EP4163933A1 (de) 2023-04-12
EP4163933A4 EP4163933A4 (de) 2024-06-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20945294.5A Pending EP4163933A4 (de) 2020-07-16 2020-11-05 Dynamisches und statisches unterwasserkabel mit durchgehender drahtseele und herstellungsverfahren dafür

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Country Link
EP (1) EP4163933A4 (de)
CN (1) CN111899927B (de)
WO (1) WO2022011897A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113299431B (zh) * 2021-05-21 2022-04-15 中天科技海缆股份有限公司 动静态海缆及其制造方法
DE102021131422A1 (de) * 2021-11-30 2023-06-01 Rwe Renewables Gmbh Seekabelsystem und Verfahren zum Verlegen eines Seekabelsystems
CN116682604B (zh) * 2023-07-04 2024-04-19 宁波东方电缆股份有限公司 一种动静态转换脐带缆及其成型方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02168805A (ja) * 1988-12-19 1990-06-28 Furukawa Electric Co Ltd:The 接続部付き水底ケーブル
CN202084895U (zh) * 2011-01-26 2011-12-21 郑炳文 一种海底电缆穿越海上钢制构筑物甲板固定装置
CN205283073U (zh) * 2015-12-07 2016-06-01 江苏亨通海洋光网系统有限公司 一种海缆的缆型过渡接头
CN205595098U (zh) * 2016-04-01 2016-09-21 江苏亨通高压电缆有限公司 一种海底电缆的铠装层过渡接头
CN205837140U (zh) * 2016-07-12 2016-12-28 中天科技海缆有限公司 一种动态缆密封限位锚固结构
PT3644326T (pt) * 2018-10-26 2022-10-17 Nkt Hv Cables Ab Cabo eléctrico submarino reforçado
CN110632724A (zh) * 2019-10-31 2019-12-31 江苏亨通海洋光网系统有限公司 一种动静态海底光缆接头盒
CN111292889A (zh) * 2020-02-20 2020-06-16 中天科技海缆有限公司 动静态铠装缆及制造方法

Also Published As

Publication number Publication date
CN111899927B (zh) 2021-11-23
WO2022011897A1 (zh) 2022-01-20
EP4163933A4 (de) 2024-06-12
CN111899927A (zh) 2020-11-06

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