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High-efficiency multiple-shielded cable

A shielded cable, multi-layer technology, applied in the field of high-efficiency multi-shielded cables, can solve the problems of poor anti-shielding ability, weak waterproof and fire resistance, etc., and achieve the effect of saving copper materials, reducing weight, and good signal transmission

Inactive Publication Date: 2018-03-23
CHENGDU ZHONGFU LIXIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its anti-shielding ability is poor, and its waterproof and fire-resistant ability is weak

Method used

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  • High-efficiency multiple-shielded cable

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Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, this embodiment provides a high-efficiency multi-shielded cable, which is characterized in that it includes four identical shielded cable core wires 1, and the shielded cable core wire 1 includes conductors 1-5 and conductor shielding arranged in sequence from inside to outside. Layer 1-4, insulation layer 1-3, insulation shielding layer 1-2 and copper tape shielding layer 1-1, four identical shielded cable core wires 1 are wrapped with loose sleeve layer 4, inner shielding layer 5, fire-resistant layer 6. The outer shielding layer 7, the armor layer 8, the inorganic mineral insulating layer 9, the loose sleeve layer 4 is provided with a reinforcing core 3, the material of the inorganic mineral insulating layer 9 is magnesium oxide, and the refractory layer 6 is 2-4 mm in thickness. Ceramic refractory silicone rubber.

[0018] The outer shielding layer 7 includes a copper foil layer with a thickness of 1.3um. The copper foil layer is plated w...

Embodiment 2

[0021] This embodiment is further optimized on the basis of embodiment 1, specifically:

[0022] Both the inner shielding layer 5 and the outer shielding layer 7 are non-metallic shielding layers made of polyolefin and carbon black conductive composite materials.

[0023] The refractory layer 6 includes a mica layer, and the two sides of the mica layer are respectively bonded with a reinforcement layer made of glass fiber mesh, and a film made of water-blocking powder is bonded on the reinforcement layer to form a water-blocking layer.

[0024] The armored layer 4 includes a copper tape shielding layer with a thickness of 2 to 3 mm and a steel wire armored layer arranged outside the copper tape shielding layer, and the steel wire armored layer is made of galvanized steel wire with a diameter of 0.2 to 0.3 mm compiled.

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Abstract

The invention discloses a high-efficiency multi-shielded cable, relates to the technical field of cables, and solves the technical problem of poor shielding performance of common cables. Conductor, conductor shielding layer, insulating layer, insulating shielding layer and copper tape shielding layer, four identical shielded cable core wires are wrapped with loose sleeve layer, inner shielding layer, refractory layer, outer shielding layer, armored layer, inorganic Mineral insulation layer, a reinforcing core is set in the loose sleeve layer, the material of the inorganic mineral insulation layer is magnesium oxide, and the refractory layer is ceramic refractory silicone rubber with a thickness of 2-4mm; compared with ordinary cables, the water-blocking cable has a better water-blocking effect , The shielding effect is good, thereby prolonging the service life of the cable and reducing the cost of use.

Description

technical field [0001] The invention relates to the field of cables, and more specifically relates to a high-efficiency multi-shielded cable. Background technique [0002] The application of cables is very wide, and the common ones are mainly used in power systems, information transmission systems, etc. Electric power information cables include local telephone cables, TV cables, optical cables, etc. [0003] When cables are laid on light rail, subway or indoors, high requirements are put forward for their waterproof, moisture-proof, flame-retardant and fire-resistant properties. In order to meet the requirements of the cable use environment, the product structure is designed according to different flame-retardant and fire-resistant requirements. Currently widely used railway signal cables, railway digital signal cables, railway inner shielded digital signal cables, rail transit signal cables, and transponder data transmission cables are divided into two categories, one is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/17H01B7/18
CPCH01B7/17H01B7/0045H01B7/1805
Inventor 彭云杰
Owner CHENGDU ZHONGFU LIXIANG TECH
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