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Submarine cable joint of different armoured structures and online transition process therefor

A submarine cable and armoring technology is applied in the field of submarine cable joints and their online transition technology to achieve the effects of reducing installation cost and difficulty, improving reliability and simple process

Active Publication Date: 2016-03-30
JIANGSU HENGTONG MARINE CABLE SYST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is to provide a submarine cable joint with different armored structures and its online transition process, which can solve the shortcomings of existing submarine cable connection methods

Method used

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  • Submarine cable joint of different armoured structures and online transition process therefor
  • Submarine cable joint of different armoured structures and online transition process therefor
  • Submarine cable joint of different armoured structures and online transition process therefor

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Embodiment 1

[0039] The invention discloses a cable-type transition joint for a submarine cable, which sequentially includes a cable core 1, an asphalt coating 2, a cable-type transition end, an adhesive tape 3 and the outermost cladding layer from the inside to the outside; the cable core 1 is an integral root, with the same outer diameter, running through the entire submarine cable, the asphalt coating 2 is coated on the cable core at the joint of the cable-type transition end; the cable-type transition end includes the transition end of the A cable type and the B cable type The transition end of the A cable type is an unarmored submarine cable, and the B cable type is an armored submarine cable with more than one layer of armor. The steel wire end at the connection between the B cable transition end and the A cable transition end There is also a connecting pipe 4, that is, a heat-shrinkable tube; the outermost coating layer is an asphalt coating and a PP rope or PE sheath 5 coated outsid...

Embodiment 2

[0050]The invention discloses a cable-type transition joint of a submarine cable, which sequentially includes a cable core 1, an asphalt coating 2, a cable-type transition end, an adhesive tape 3 and the outermost cladding layer from the inside to the outside; the cable core 1 is an integral root, with the same outer diameter, running through the entire submarine cable, and the asphalt coating 2 is coated on the cable core at the joint of the cable-type transition end; the cable-type transition end includes the transition end of the A cable type and the B cable type The transition end of type A and type B are both armored submarine cables, and the number of armor layers is more than 1. The number and diameter of steel wires of type A and type B are different. The steel wire welded joint at the connection of the cable-type transition end is also sleeved with a connecting pipe 4, that is, a high-strength casing; the outermost cladding layer is an asphalt coating and a PP rope or ...

Embodiment 3

[0062] The invention discloses a cable-type transition joint of a submarine cable, which sequentially includes a cable core 1, an asphalt coating 2, a cable-type transition end, an adhesive tape 3 and the outermost cladding layer from the inside to the outside; the cable core 1 is an integral root, with the same outer diameter, running through the entire submarine cable, and the asphalt coating 2 is coated on the cable core at the joint of the cable-type transition end; the cable-type transition end includes the transition end of the A cable type and the B cable type Type A and Type B are armored submarine cables, the number of steel wires of Type A and Type B is different, and the number of layers of steel wires of Type B is at least 1 layer greater than that of Type A. The diameter and number of steel wires in the same part of the A-cable type and B-cable type are the same, and a connecting pipe 4 is sleeved on the welded joint of the steel wire at the junction of the transit...

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Abstract

The invention discloses a submarine cable joint of different armoured structures and an online transition process therefor. The submarine cable joint comprises a cable core, an asphalt coating layer, a cable type transmission end, an adhesive tape and an outermost coating layer from interior to exterior in sequence; the cable core passes through the overall submarine cable; the cable core in the joint of the cable type transmission end is coated with the asphalt coating layer; the cable type transmission end comprises an A cable type transmission end and a B cable type transmission end; and a steel wire end in the junction of the A cable type transmission end and the B cable type transmission end is further sleeved with a connecting pipe. According to the online transition process provided by the invention, the transition connection of different cable types are finished online by adopting the production way of a whole piece of cable core; the process is simple and convenient, and the production efficiency is high; the produced transition submarine cable has no joint in the cable core, so that the fault rate is reduced, and the reliability of the submarine cable is improved; the joint is welded by steel wires, so that the submarine cables are connected firmly without expanding the size of the joint; therefore, the use and the installation of the submarine cables are convenient, and the installation cost and the installation difficulty are reduced; and meanwhile, the development for marine energy resources, and the influences on the lives of residents and the safety of the countries in coastal areas and islands are reduced.

Description

technical field [0001] The invention relates to the technical field of armored cables, in particular to submarine cable joints of different armored structures such as submarine cables, submarine optical cables, dynamic cables, and umbilical cables, and an online transition process thereof. Background technique [0002] At present, the common submarine cables include submarine cables, submarine optical cables, dynamic cables and umbilical cables, and their application depths range from shallow seas to deep seas. Under different water depths and environments, the requirements for mechanical properties such as tensile force and bending of submarine cables are different, so the number of armor layers and the number of steel wires of submarine cables are different. Since the application water depth of the same submarine cable is often repeatedly staggered between shallow sea and deep sea, the same submarine cable usually has different armored structure areas, and different armore...

Claims

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Application Information

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IPC IPC(8): H01B7/14H01B7/17H01B7/22H01B13/00G02B6/44
Inventor 张磊王雄许人东孙贵林张超郝常吉蒋寅
Owner JIANGSU HENGTONG MARINE CABLE SYST CO LTD
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