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Self-bearing fire-resistant flame-retardant coaxial high-voltage cable and manufacturing method thereof

A fire-resistant, flame-retardant, high-voltage cable technology, applied in the direction of coaxial cables/analog cables, cable insulation structures, insulated cables, etc., can solve the problems of burning space, large gaps in cables, poor flame retardant effect, etc., and achieve increased contact Larger area, longer service life, good support effect

Inactive Publication Date: 2020-12-11
安迈森(福建)线缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a self-supporting fire-resistant and flame-retardant coaxial high-voltage cable and its manufacturing method, which can effectively solve the problem that the outer side of the inner conductor of the coaxial cable proposed in the above background technology is foamed plastic, the flame-retardant effect is poor, and there are large There is a gap in the gap, there is a burning space when the heat is on fire, and the problem of damage to the cable is caused

Method used

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  • Self-bearing fire-resistant flame-retardant coaxial high-voltage cable and manufacturing method thereof
  • Self-bearing fire-resistant flame-retardant coaxial high-voltage cable and manufacturing method thereof
  • Self-bearing fire-resistant flame-retardant coaxial high-voltage cable and manufacturing method thereof

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Embodiment 1

[0041] Embodiment 1: as Figure 1-5 As shown, the present invention provides a technical solution, including a coaxial cable substrate 1, a central assembly 2, an inner conductor 201, an insulating strip 202, a through hole 203, an air bag 204, carbon dioxide 205, a flame-retardant wire 206, and an inner heat-sealing film 207 ,

[0042] Middle layer component 3, insulating rubber pad 301, metal braiding layer 302, inlay groove 303, barrier ring 304, iron powder 305, deformation groove 306, anti-slip groove 307, outer heat sealing film 308,

[0043] Outer layer component 4, aluminum alloy ring 401, heat conducting groove 402, insulating block 403, rubber ring 404, connection hole 405, heat conducting wire 406, insulating layer 407, heat dissipation groove 408 are provided with a central component 2 inside, and the central component 2 includes inner wires 201, insulating strip 202, through hole 203, air bag 204, carbon dioxide 205, flame retardant silk 206 and inner heat sealin...

Embodiment 2

[0049] Embodiment 2: as Figure 6 Shown, a kind of manufacturing method of self-supporting refractory flame-retardant coaxial high voltage cable comprises the following steps:

[0050] S1: Central component assembly: the inner wire is used as the central axis, and several insulating strips are hinged on the outside of the inner wire, and the flame-retardant wire fills the gap between the insulating strips and then wraps the inner heat-sealing film.

[0051] S2: Assembly of the middle layer components: put the central component into the extruder, wrap the insulating rubber on the outside of the inner heat-sealing film, and then cover the outside with a metal braid layer, evenly cover the barrier rings, and sprinkle the gap between the barrier rings Iron powder, wrapped with heat-sealing film.

[0052] S3: Assembly of outer layer components: the aluminum alloy ring is sleeved on the outside of the outer heat-sealing film, and then the cable is placed in the extruder, and the me...

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Abstract

The invention discloses a self-bearing fire-resistant flame-retardant coaxial high-voltage cable and a manufacturing method thereof. A central assembly is arranged in a coaxial cable base body; the outer side of an inner wire is uniformly wrapped with insulating strips; the outer side of an inner heat-sealing film is provided with a middle-layer assembly; the outer side of an insulating rubber padis sleeved with a metal braided layer; iron powder is uniformly distributed between adjacent blocking rings; an outer layer assembly is arranged on the outer side of an outer heat-sealing film; heatconduction grooves are evenly formed in the outer side of an aluminum alloy ring; and rubber rings are bonded to the two sides of the aluminum alloy ring. According to the invention, the central assembly is used as an inner core of the cable; the cooperation between the insulating strips and flame-retardant wires improves flame-retardant effect, and the flexibility of the plurality of hinged insulating strips is better; iron powder of a middle-layer assembly absorbs oxygen and water vapor in a gap to prevent the metal braided layer from being oxidized and corroded; the aluminum alloy ring andheat conducting wires of the outer layer assembly dissipate heat; and a blocking ring and the aluminum alloy ring serve as a supporting framework and are matched with the central assembly to improve the overall strength of the cable, so the cable is more convenient to use.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a self-supporting fire-resistant and flame-retardant coaxial high-voltage cable and a manufacturing method thereof. Background technique [0002] Coaxial cable refers to a cable with two concentric conductors, and the conductor and the shielding layer share the same axis. It is composed of copper wire conductors isolated by insulating materials. Outside the inner layer of insulating material is another layer of ring conductors and their insulators. , the outside is covered by a sheath made of polyvinyl chloride or Teflon material, and is usually laid on the ground. [0003] However, the outer side of the inner conductor of the coaxial cable currently on the market is made of foamed plastic, which is easily damaged when bent, has poor flame retardancy, and there are large gaps inside the cable. Contents of the invention [0004] The present invention provides a self-supporting f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/18H01B7/295H01B7/42H01B7/18
CPCH01B7/18H01B7/295H01B7/428H01B11/18H01B11/1834H01B11/1869
Inventor 李枚宋运龙汪元陈纯纯陈云玲
Owner 安迈森(福建)线缆有限公司
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