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Flame-retardant cable

A flame retardant cable and flame retardant layer technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of short cable life, difficult maintenance work, poor water resistance and flame retardant performance of cables, etc., and achieve good waterproof and moisture-proof effect. Good fire retardant effect

Inactive Publication Date: 2018-03-20
成都君华睿道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The application of cables is very wide, and the common ones are mainly used in power systems, information transmission systems, etc. Cables for power information include local telephone cables, TV cables, optical cables, etc. Mice are rodents, and their teeth grow for life. They must be gnawed every day. Bite objects to wear fast-growing teeth to maintain their physiological habits, and the unique smell of plastics makes plastics a long-term gnawing target for rodents. Mice live in dark corners of underground river buildings, cable tunnels, trenches, cable shafts, etc. They have become the best places for rats to inhabit, so these cables are often bitten by rats. Rat bites are one of the main hazards to cables at present. The main damage to cables caused by rat bites is that the outer sheath is worn and the cable enters water. , causing power outages, communication interruptions, etc., it is difficult to eliminate the damage caused by rat bites, and it also brings difficulties to maintenance work. At present, some cables have poor water resistance and flame resistance, and the cable life is not long.

Method used

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  • Flame-retardant cable

Examples

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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the present embodiment provides a flame-retardant cable, including a plurality of cables 2, each cable 2 includes a conductor 2-1 and a loose sleeve layer 2-2 arranged outside the conductor 2-1, and a plurality of cable cores Aramid yarn layer 4, inner sheath 5, plastic-coated steel belt layer 6, flame retardant layer 7, capsaicin layer 8, outer sheath 9 and anti-corrosion layer 10 are arranged in sequence outside the line 2, and the inner gap of aramid yarn layer 4 is It is filled with ceramic refractory silicone rubber 3, the center of multiple cables 2 is provided with a metal reinforcing core 1, and the material of the outer sheath 9 is low-smoke halogen-free polyolefin.

[0018] In this embodiment, when the young mouse bites through the outer sheath, it will bite the capsaicin layer, and the capsaicin will strongly stimulate the mouse, driving the mouse to give up biting. Even if the capsaicin layer is worn, the armor inside The layer fu...

Embodiment 2

[0020] This embodiment is further optimized on the basis of embodiment 1, specifically:

[0021] The conductor 2-1 is a copper conductor, and the conductor 2-1 is a copper wire with a diameter of 0.3mm and 0.1mm evenly arranged in a ratio of 1:2.

[0022] The plastic-coated steel strip layer 6 is formed by winding a galvanized steel strip with a thickness of 1.2-3.6mm, and small cooling holes with a diameter of 320-560um are uniformly arranged on the galvanized steel strip.

[0023] The reinforced cable core 1 is formed by re-twisting galvanized steel wires with a diameter of 0.15-0.2 mm.

[0024] The flame retardant layer 7 includes a copper wire mesh, an expanded particle layer, and a mica layer arranged sequentially from the inside to the outside, the thickness of the mica layer is 0.25-0.63mm, and the single wire diameter of the copper wire mesh is 0.21-0.98mm .

[0025] The anticorrosion layer 10 is an asphalt layer with a thickness of 0.12-0.35mm.

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Abstract

The invention discloses a flame-retardant cable, which relates to the technical field of cables, and solves the problems of ordinary cables such as weak moisture resistance and poor flame retardancy, and the cable is easily bitten by mice. It includes a plurality of cables, and each cable includes a conductor and the loose sheath layer arranged outside the conductor, and aramid yarn layer, inner sheath, plastic-coated steel strip layer, flame retardant layer, capsaicin layer, outer sheath and anti-corrosion layer are arranged in sequence outside the multiple cable core wires. The inner gap of the fiber yarn layer is filled with ceramic refractory silicone rubber, the center of multiple cables is provided with a metal reinforcing core, and the material of the outer sheath is low-smoke halogen-free polyolefin; compared with ordinary cables, the tensile strength of the cable of the present invention is Strength, water resistance, flame retardant and rodent resistance at the same time, further 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 flame-retardant 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. Cables for power information include local telephone cables, TV cables, optical cables, etc. Mice are rodents, and their teeth grow for life. They must be gnawed every day. Bite objects to wear fast-growing teeth to maintain their physiological habits, and the unique smell of plastics makes plastics a long-term gnawing target for rodents. Mice live in dark corners of underground river buildings, cable tunnels, trenches, cable shafts, etc. They have become the best places for rats to inhabit, so these cables are often bitten by rats. Rat bites are one of the main hazards to cables at present. The main damage to cables caused by rat bites is that the outer sheath is worn and the cable enters ...

Claims

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Application Information

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IPC IPC(8): H01B7/17H01B7/22H01B7/295H01B7/288
CPCH01B7/17H01B7/22H01B7/288H01B7/295
Inventor 曹月琴
Owner 成都君华睿道科技有限公司
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