A dual-purpose submarine double-three-core cable for communication and electric power and its manufacturing method

A three-core cable and manufacturing method technology, applied in communication cables, submarine cables, cable/conductor manufacturing, etc., can solve the problems of high manufacturing cost, many riverbed roads, long production cycle, etc., to improve comprehensive mechanical properties and enhance buffering. The effect of performance and high toughness

Active Publication Date: 2021-10-22
金泰电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current submarine cables in the prior art are power transmission or communication cables with independent functions, which have relatively long production cycle, high manufacturing cost, more river bed and road surface occupied during laying, and waste of space. Therefore, on the basis of 220kV single-core submarine cables, It is of great technical significance to develop multi-core cables and dual-purpose cables for communication and power

Method used

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  • A dual-purpose submarine double-three-core cable for communication and electric power and its manufacturing method
  • A dual-purpose submarine double-three-core cable for communication and electric power and its manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A dual-purpose submarine double-three-core cable for communication and power. The overall structure is a three-core cable. Each core 1 is made of 30 pure copper cores and compressed into a cylindrical core 1 with a diameter of φ38.2mm by using a polycrystalline mold at a density of 91%. The outer surface of each core 1 is covered with PVC material. Electrostatic coating film 2; each core tube is provided with a core body 1, an electrostatic coating film 2, an insulating layer 3, a single-core self-fixing water-blocking belt 4 and a single-core coating layer 5 from the inside and the outside; the outer protective sleeve From the inside and outside, there are inner lining self-fixing water blocking tape 7, inner lining layer 8, steel wire armor layer 9, outer lining self-fixing water blocking tape 10, and outer lining layer 11; The gaps between the solid strips 6 are filled with solid strips 6, which are sealing strips made of epoxy resin in a shape that matches the core ...

Embodiment 2

[0073] The whole is consistent with Example 1, the difference is:

[0074] The outer diameter of the submarine cable is 270mm, and each core 1 in it is made of 30 pure copper cores and compressed into a cylindrical core 1 with a diameter of φ38.8mm by a polycrystalline mold at a density of 89%. The solid-blocking water belt 4, the inner lining self-fixing water belt 7 and the outer lining self-fixing water belt 10 are all made of indium oxide: tin oxide: calcium oxide: magnesium oxide: iron oxide in a mass ratio of 45:6:1.8:1 : 0.6 ratio of the mixed mixture is raw material, after evaporation on the surface of the plane pure copper plate, the conductive self-curing film that adopts the NaOH aqueous solution of 1.5% mass concentration to be initially solidified and then demolded to take off;

[0075] The manufacturing method of above-mentioned cable, comprises the following steps:

[0076] 1) Raw material preparation

[0077] ① Raw material preparation: prepare indium oxide 4...

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Abstract

The invention discloses a dual-purpose submarine double-three-core cable for communication and electric power and a manufacturing method thereof. The submarine cable has a three-core cable structure as a whole and is composed of three core tubes that are individually wrapped and an outer protective sheath that covers the core tube. The outer diameter of the submarine cable is 265mm-270mm, and it has a cylindrical core with a diameter of φ38.2mm-φ38.8mm. The outer surface of the core is covered with an electrostatic coating film made of PVC; each core tube is provided with Core body, electrostatic coating film, insulating layer, single-core self-consolidating water-blocking tape and single-core cladding layer; the outer protective cover is provided with inner-lined self-consolidating water-blocking tape, inner liner, steel wire armor layer, outer lining, self-fixing water-blocking tape, and outer lining; solid strips are filled in the gap between each core tube and the outer protective sheath. The submarine cable of the present invention is dual-purpose for communication and electric power, self-reinforced in seawater, high in strength, good in toughness, resistant to breakdown, good in self-shielding, good in water resistance, not easy to bend, long in service life, and resistant to impact and vibration.

Description

technical field [0001] The invention relates to the field of manufacturing special cables, in particular to a dual-purpose submarine double-three-core cable for communication and electric power and a manufacturing method thereof. Background technique [0002] Submarine cables are divided into submarine communication cables and submarine power cables. Submarine communication cables are mainly used for communication services, which are expensive, but have a high degree of confidentiality. Submarine power cables are mainly used to transmit high-power electric energy underwater, which has the same function as underground power cables, but the application occasions and laying methods are different. Submarine cables are wires or optical fibers wrapped with insulating materials, laid on the seabed and underwater in rivers for power or signal transmission. [0003] However, the current submarine cables in the prior art are power transmission or communication cables with independen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/00H01B7/14H01B7/18H01B7/22H01B7/282H01B11/10H01B11/22H01B13/00H01B13/012H01B13/22
CPCH01B7/0009H01B7/14H01B7/1895H01B7/22H01B7/2825H01B11/10H01B11/22H01B13/0016H01B13/0026H01B13/012H01B13/22
Inventor 张素兰杨桂莲
Owner 金泰电缆有限公司
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