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A watertight digital communication network cable for ships and a preparation method thereof

A digital communication network and watertight technology, which is applied in the direction of communication cables, cable/conductor manufacturing, submarine cables, etc., can solve the problem that the digital communication network cables for ships cannot meet the requirements of the ship's watertight system, and achieve excellent electrical performance and Mechanical properties, high degree of protection, and high impedance consistency

Inactive Publication Date: 2017-08-11
NANJING QUANXIN CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention is a ship watertight digital communication network cable and its preparation method, and its purpose is to solve the problem that the traditional ship digital communication network cable cannot meet the requirements of the ship watertight system

Method used

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  • A watertight digital communication network cable for ships and a preparation method thereof

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preparation example Construction

[0038] The preparation method of the ship's watertight digital communication network cable comprises the following steps:

[0039] 1) A single round copper wire is used as the conductor 1;

[0040] 2) Extrusion equipment is used to extrude polyethylene material or polyolefin material outside the conductor 1 as the insulating layer 2, and the conductor 1 and the insulating layer 2 form an insulating core;

[0041] 3) The insulated wire cores are twisted into network wire cores by pair twisting; four pairs of network wire cores are twisted together by a cable forming machine, and the automatic and continuous glue injection process is adopted to fill the glue into the network wire cores through customized molds. Fill the gap between the core 3 and the shielding layer 5, and wrap the water-absorbing expansion tape around the cable core;

[0042] 4) Tinned copper wire is braided by a braiding machine as the armor layer 7, and a water-absorbing expansion tape is wrapped around the ...

Embodiment 1

[0053]Ship watertight digital communication network cable, its structure consists of four pairs of network cores, filling core 3, sealing layer 4, shielding layer 5, A wrapping layer 6, braiding layer 7, B wrapping layer 8, sheath layer 9 composition; wherein, each pair of network cores includes two conductors 1, and each conductor 1 has an insulating layer 2 outside; four pairs of network cores are surrounded by a shielding layer 5; outside the shielding layer 5 is an A wrapping layer 6; A wrapping Outside the layer 6 is the braiding layer 7; outside the braiding layer 7 is the B-wrapping layer 8; outside the B-wrapping layer 8 is the sheath layer 9; there is a filling core 3 in the middle of the four pairs of network cores; four pairs of network cores, filling The gap formed between the core 3 and the shielding layer 5 is filled with glue as the sealing layer 4 .

[0054] The conductor 1 is a TR-type single soft round copper wire that meets the requirements of the GB / T 3953-...

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Abstract

The invention provides a watertight digital communication network cable for ships and a preparation method thereof. The watertight digital communication network cable comprises four pairs of network cable cores, a filling core, a sealing layer, a shielding layer, an A wrapping layer, a braided layer, a B wrapping layer and a sheath layer. Each pair of network cable cores comprise two conductors. Each conductor is externally provided with an insulation layer; the four pairs of network cable cores are externally wrapped by the shielding layer; the shielding layer is externally wrapped by the A wrapping layer; the A wrapping layer is externally wrapped by the braided layer; the braided layer is externally wrapped by the B wrapping layer; and the B wrapping layer is externally wrapped by the sheath layer. The advantages are that 1) the watertight digital communication network cable can prevent water from leaking from the internal portion of the cable structure into other cabins or into instrument equipment; 2) the watertight digital communication network cable has the advantages of flexibility, ageing resistance, ozone resistance, oil resistance, flame retardance, cold resistance, water absorption, longitudinal water seal, and can maintain excellent electrical and mechanical properties under hostile environment; and 3) the watertight digital communication network cable has the advantages of high impedance consistency, low attenuation and high near / far-end crosstalk disturbance guard degree.

Description

technical field [0001] The invention relates to a ship watertight digital communication network cable specially used for the ship watertight system, belonging to the technical field of cable manufacturing. Background technique [0002] At present, there are no detailed specifications on watertight digital communication network cables for ships on the market, and there are no special watertight digital communication network cables for ships on the market; according to the special requirements of users, refer to YD / T 1019-2013 "Digital The related performance indicators in Polyolefin Insulated Horizontal Twisted Twisted Cables for Communications and the related test methods in GJB 1916-94 "General Specifications for Low-Smoke Cables and Cords for Ships" have improved the test indicators of the longitudinal water seal test , adding cold resistance test and water absorption test, the rationality of the product design has been verified through the test, and it can provide users w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B7/14H01B7/17H01B7/282H01B7/285H01B7/288H01B11/00H01B11/04H01B11/06H01B13/00
CPCH01B7/04H01B7/14H01B7/17H01B7/2825H01B7/285H01B7/288H01B11/005H01B11/04H01B11/06H01B13/00
Inventor 刘洋穆腾飞倪凡鲁海燕洪永飞李峰
Owner NANJING QUANXIN CABLE TECH
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