Three-core optical fiber composite submarine cable

A technology of submarine cable and three-core optical fiber, applied in the direction of submarine cable, power cable, cable, etc., can solve the problems of energy loss, mechanical damage of submarine cable, occupation of route width, etc., and reduce the probability of mechanical damage and mechanical loss. , the effect of reducing the occupied routes

Inactive Publication Date: 2012-09-26
HENGTONG SUBMARINE POWER CABLE CO LTD
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AI Technical Summary

Problems solved by technology

[0005] 2. Coastal resources are limited and valuable, because the laying distance of single-core submarine cables is generally about 50m, and a loop requires three single-core cables, which not only occupies the width of the route, but also increases the maintenance cost of the route and the probability of mechanical damage to the submarine cable also greatly improved
[0006] 3. Interference with the surrounding environment, because the single-core submarine cable is laid in parallel, and the electromagnetic induction gene

Method used

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  • Three-core optical fiber composite submarine cable
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Embodiment Construction

[0026] As shown in the accompanying drawings, it provides three cable cores 1 and one optical cable unit 2 for forming a power transmission circuit. Each cable core 1 includes a water-blocking conductor 11 and an insulating layer positioned outside the water-blocking conductor 11 in turn. 13. Shielding layer 14, water blocking layer 15, lead layer 16 and sheath layer 17.

[0027] The water-blocking conductor 11 is a conductor in which gaps between wires constituting the water-blocking conductor 1 are filled with water-blocking materials. Because the water-blocking conductor 11 is also called a cable core conductor, and the cable core conductor is composed of a plurality of wires arranged in a cylindrical shape, the gaps between the wires are filled with a filler preferably water-blocking powder.

[0028] A semi-conductive layer 12 is arranged between the water-blocking conductor 11 and the insulating layer 13. The semi-conductive layer 12 is also called a semi-conductive resis...

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Abstract

The invention discloses a three-core optical fiber composite submarine cable, which includes cable cores and at least one optical fiber unit, wherein the cable cores and the optical fiber unit are wrapped by an adhesive cloth layer; fillers are arranged between the cable cores and between the cable cores and the optical fiber unit; a lining layer, a steel wire armoured layer and an outer covering layer are sequentially arranged on the adhesive layer; the three parallel cable cores form a circuit; and each cable core includes a water resistant conductor and an insulation layer, a shielding layer, a water resistant layer, a lead layer and a shield sleeve layer that are sequentially arranged on the water resistant conductor. The three-core optical fiber composite submarine cable facilitates avoiding severe heating at the landing end and the pole climbing part of the submarine cable after landing, reducing route occupation, enhancing shielding effect and avoiding vortex in the armoured layer.

Description

technical field [0001] The invention relates to a submarine cable, in particular to a three-core optical fiber composite submarine cable, which belongs to the technical field of submarine cables. Background technique [0002] With the development of my country's coastal wind power and new energy technologies, especially the development and utilization of marine resources, the demand for large-capacity power transmission is becoming more and more important. [0003] At present, single-core submarine cables are generally used to transmit electric energy, and there are the following disadvantages in the actual operation process: [0004] 1. Seawater is used as the cooling medium during the operation of the submarine cable. Although it does not generate heat, when the submarine cable lands, the submarine cable system is a grounding system at both ends, which will generate a large amount of heat in the metal sheath and armor layer of the submarine cable. The circulation of the l...

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Application Information

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IPC IPC(8): H01B7/14H01B9/00H01B9/02
Inventor 周厚强冯华强潘文林许勇君张超张磊乔新霞
Owner HENGTONG SUBMARINE POWER CABLE CO LTD
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