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Fire-resistant data cable

A data cable and fire-resistant technology, which is applied in the direction of insulated cables, communication cables, cables, etc., can solve problems such as fire resistance, poor mechanical properties, shock absorption effect, poor twisting fire resistance, etc., to achieve easy adhesion, excellent fire resistance, and improved Refractory effect

Active Publication Date: 2016-11-09
HANGZHOU FUTONG ELECTRIC WIRE & CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a fire-resistant data cable, which solves the defects of existing data cables in shock absorption effect, distortion and poor fire resistance
The invention improves the fire-resistant and shock-absorbing performance of the fire-resistant data cable by setting the cable inner core, oil-resistant layer, fire-resistant fiber layer, and water-resistant layer, and solves the problem that the existing fire-resistant data cable depends on the performance of the resin material itself, and its fire-resistant and mechanical properties are relatively low. poor defect

Method used

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Embodiment 1

[0022] Embodiment 1: In order to solve the above problems, the present invention discloses a fire-resistant data cable, comprising: a cable inner core 1, an oil-resistant layer 2, a fire-resistant fiber layer 3, and a water-resistant layer 4, the cable inner core 1, the oil-resistant layer 2, The refractory fiber layer 3 and the water-resistant layer 4 are arranged in sequence from the inside to the outside. The cable inner core 1 includes a foamed skeleton 11 and a conductor core group 12. The foamed skeleton 11 includes four symmetrically arranged ridges 21; the The end of the protruding strip 21 is provided with a groove 22 that is recessed inward, and the conductor core group 12 is placed in the groove 22. The conductor core group 12 includes a pair of wires 31 arranged in parallel, and the pair of wires 31 is covered There is an insulating layer 32, and an oil ointment is filled between the cable inner core 1 and the oil-resistant layer 2, and the oil ointment includes dim...

Embodiment 2

[0026] Embodiment 2: The present invention also discloses a fire-resistant data cable, and the length of the protruding strip 21 is 12 mm. The length of the protruding strips 21 is in the range of 8 mm-12 mm, and under the condition of using the foam material, the working strength of the protruding strips 21 is effectively guaranteed.

[0027] In the implementation of the embodiment of the present invention, a foamed skeleton made by foaming a mold is used, a pre-packaged conductor core group is pressed into the foamed skeleton, grease is applied by an oil injection device, and the oil-resistant layer is coated on the inner core of the cable The outer surface of the outer oil-resistant layer is woven and sheathed with a refractory fiber layer, and the outer surface of the refractory fiber layer is injection-molded and covered with a water-resistant layer.

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Abstract

The invention discloses a fire-resistant data cable, which comprises a cable inner core, an oil-resistant layer, a refractory fiber layer and a water-resistant layer, wherein the cable inner core, the oil-resistant layer, the refractory fiber layer and the water-resistant layer are sequentially arranged from the inside to the outside; the cable inner core comprises a foam skeleton and conductor core groups; the foam skeleton comprises four raised lines which are symmetrically arranged; the tail end of each raised line is provided with a groove which is sunk inwards; each conductor core group is arranged in the corresponding groove; each conductor core group comprises a pair of wires which is arranged in parallel; an isolation layer coats the outer sides of each pair of wires; factice is filled between the cable inner core and the oil-resistant layer; and the factice comprises dimethicone, copolymerized silicone oil and fumed silica with the ratio in parts of 54 to 38 to 8. Through the arrangement of cable inner core, oil-resistant layer, refractory fiber layer and water-resistant layer, the fire resistance and the vibration reducing performance of the fire-resistant data are improved; and the problem that the fire resistance and the mechanical property are relatively poor since an existing fire-resistant data cable is dependent on the performance of a resin material itself is solved.

Description

technical field [0001] The invention relates to the field of cable production, in particular to a fire-resistant data cable. Background technique [0002] With the rapid development of optical communication technology, optical cables have been widely used in the backbone network and inter-office trunk lines of wired communication networks, and it has become an inevitable trend for optical fibers to enter the access network. However, the cost of laying optical cables is too high, and the cost of joints and terminal optical-to-electrical conversion is expensive. Therefore, for a long time before the popularization of optical fibers, the subscriber lines of the access network will still be dominated by metal cables. As a kind of metal cable, data cable is an ideal transmission medium for broadband access network. It has the advantages of low manufacturing cost, simple structure, good scalability and easy network upgrade. It is mainly used for building integrated wiring, residen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/18H01B7/28H01B7/282H01B7/29H01B11/00
CPCH01B7/17H01B7/1815H01B7/28H01B7/2825H01B7/29H01B11/005
Inventor 张立永史烨婷闫瑞郝小龙
Owner HANGZHOU FUTONG ELECTRIC WIRE & CABLE
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