CN204991243U - Fire -retardant fire -resistant strenghthened type composite cable of multicore - Google Patents
Fire -retardant fire -resistant strenghthened type composite cable of multicore Download PDFInfo
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- CN204991243U CN204991243U CN201520568372.4U CN201520568372U CN204991243U CN 204991243 U CN204991243 U CN 204991243U CN 201520568372 U CN201520568372 U CN 201520568372U CN 204991243 U CN204991243 U CN 204991243U
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Abstract
The utility model discloses a fire -retardant fire -resistant strenghthened type composite cable of multicore, including circular cable core, this cable core is formed by a fan -shaped control core and two fan -shaped insulation core transposition, be provided with outside the cable core and tighten the layer, around package mica tape, outmost crowded packet of oversheath outside tightening the layer, fan -shaped control core by circular control conductor, crowded package at the outer circular control insulating layer of circular control conductor and the fan -shaped phlogopite area that crowded package is circular outside controlling the insulating layer constitute, fan -shaped insulation core constitute by circular conductor and the fan -shaped insulating layer of crowded package outside circular conductor, be equipped with the enhancement core in circular conductor. The utility model has the characteristics of but compact structure, the technology degree of difficulty are low, the good simultaneous transmission electric power of fire -retardant fire resistance and control signal etc.
Description
Technical field
The utility model relates to cable conductor field, specifically the reinforced composite cable of a kind of multicore flame-retardant.
Background technology
Along with taking place frequently of fire incident, people constantly deepen electric wire fire risk understanding, and the requirement of relevant department to performances such as electric wire fire protection flame retardings is also more and more higher.Features such as spreading fast, difficulty of putting out a fire to save life and property because cable fire has, produce secondary harm, recovery time is long can bring huge loss to the lives and properties of national economy and the people.Therefore fire-retardant, fire performance, the security reliability of people to electric wire proposes harsher service conditions.As strong in fire prevention, explosion-proof, overload capacity, long service life, the particular/special requirements such as under Fire Conditions, Fire lift, fire pump need keep the normal operation in certain hour, and cable is low-smoke low-halogen low toxicity after combustion, and even smokeless halogen-free is nontoxic.Cable-flame retardant, fire prevention measure reduce the important means that ignition of cable prolongs combustion, and key is being relied mainly on prevention, and all kinds of flame retardant cable, fire-resisting cable, fireproof cable are used widely.
Burning occurs any material all must possess following three conditions: combustible, oxidant and temperature (ignition source).The oxygen contained in air is a kind of oxidant, therefore, in Cable Construction Design, reducing gap between cable is a kind of conventional method with the existence that this reduces air, therefore, prior art often adopts the method arranging the fire-retardant or refractory material such as glass cord, glass fiber tape, mica tape, asbestos cord between each structure of cable, can improve fire-retardant, the fire resistance of cable.This method one is that use that is fire-retardant or refractory material can increase production cost in a large number, and two is fire-retardant or the performance of refractory material own is unreliable or have injury to human body.In order to reduce the gap between core, also usually use sector conductor in prior art, extruded insulation forms stranding after segment conductor-core, and gap between core can be made to drop to minimum, but and gap between sheath still exist.Especially there is an a lot of difficult problem and drawback in process of production in the processing of sector conductor: one is that technology difficulty is large, in order to meet the enough flexibilities of sector conductor and stability, all higher to the characteristic requirements of the design of conductor structure, moulds of industrial equipment, equipment; Two is want conductor to adopt compact conductor for preventing moisture from infiltrating, and to improve the activity coefficient of wire, reduced outside diameter, reduce gap between conductor, and sector conductor is fan-shaped pressing, the shape of every layer is different, and the difficulty of pressing increases; Three is easily cause electric field to concentrate in each angle course of processing of sector conductor and damage cable insulation; Four is that conductor is easily out of shape in towing or in bending and fractures.
Along with the universal of computer technology and the develop rapidly of information industry, Intellectual district has become the development trend of modern architecture, by the comprehensive wiring system that is made up of composite cable etc. the communication in intelligent construction, computer and various equipment and facility, include comprehensive wiring system under certain conditions, be interconnected to form complete supporting entirety, to realize highly intelligentized requirement.Therefore power cable and control cables is often required to carry out compound.
Utility model content
The utility model, in order to solve problems of the prior art, provides a kind of compact conformation, technology difficulty is low, flame-retardant performance is good, can the reinforced composite cable of multicore flame-retardant of simultaneously transferring electric power and control signal.
The reinforced composite cable of a kind of multicore flame-retardant described in the utility model, comprises circular cable core, and this cable core is by a fan-shaped control conductor and two fan-shaped insulated wire cores are stranded formed; Cable core be outside equipped with thickness be 0.1-0.3mm tighten layer, be the mica tape of 0.2-0.4mm tightening the outer wrapped thickness of layer, outermost layer extrudes the oversheath that thickness is 0.3-0.6mm; Described fan-shaped control conductor controls conductor by circle, the circle be extruded in outside circular control conductor controls insulating barrier and extrude the circular fan-shaped gold mica tape controlled outside insulating barrier is formed; Described fan-shaped insulated wire cores is made up of round conductor and the fan-shaped insulating barrier be extruded in outside round conductor, in round conductor, be provided with strengthening core.
Further improvement, described tightening outside layer is coated with flame-retardant coating.
Further improvement, described circle controls conductor for pressing circular molded line conductor.
The beneficial effects of the utility model are: compared with prior art, and the utility model, can simultaneously transferring electric power and control signal with control cable core, and core is sector structure, compact conformation, and between core, gap is little, flame-retardant dependable performance.Conductor adopts circle to press structure, and technology difficulty is little and can not Damage to insulation layer; Be provided with reinforced in conductor, add the bending of cable, not frangibility; In addition, the thickness tightening layer, mica tape and oversheath outside cable core is designed, make the whole close property between three better, also make the overall sealing performance of cable more.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The reinforced composite cable of a kind of multicore flame-retardant as shown in Figure 1, comprises circular cable core, and this cable core is by a fan-shaped control conductor and two fan-shaped insulated wire cores are stranded formed; Cable core be outside equipped with thickness be the surface of 0.1-0.3mm scribble refractory coating tighten layer 7, tightening the mica tape 8 that the outer wrapped thickness of layer 7 is 0.2-0.4mm, outermost layer extrudes the oversheath 9 that thickness is 0.3-0.6mm;
Wherein, described fan-shaped control conductor controls conductor 1 by circle, the circle be extruded in outside circular control conductor 1 controls insulating barrier 2 and extrude the circular fan-shaped gold mica tape 3 controlled outside insulating barrier 2 is formed; Described fan-shaped insulated wire cores is made up of round conductor 4 and the fan-shaped insulating barrier 5 be extruded in outside round conductor 4, in round conductor, be also provided with strengthening core 6.
The utility model embody rule approach is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (3)
1. the reinforced composite cable of multicore flame-retardant, is characterized in that: comprise circular cable core, and this cable core is by a fan-shaped control conductor and two fan-shaped insulated wire cores are stranded formed; Cable core be outside equipped with thickness be 0.1-0.3mm tighten layer (7), tightening the mica tape (8) that the outer wrapped thickness of layer is 0.2-0.4mm, outermost layer extrudes the oversheath (9) that thickness is 0.3-0.6mm; Described fan-shaped control conductor controls conductor (1) by circle, be extruded in circular conductor (1) circle outward that controls controls insulating barrier (2) and extrudes circular insulating barrier (2) the fan-shaped gold mica tape (3) outward that controls to form; Described fan-shaped insulated wire cores is by round conductor (4) and be extruded in round conductor (4) fan-shaped insulating barrier (5) outward and form, and is provided with strengthening core (6) in round conductor.
2. the reinforced composite cable of multicore flame-retardant according to claim 1, is characterized in that: described tightening outside layer (7) is coated with flame-retardant coating.
3. the reinforced composite cable of multicore flame-retardant according to claim 1, is characterized in that: described circle controls conductor (1) for pressing circular molded line conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568372.4U CN204991243U (en) | 2015-07-31 | 2015-07-31 | Fire -retardant fire -resistant strenghthened type composite cable of multicore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568372.4U CN204991243U (en) | 2015-07-31 | 2015-07-31 | Fire -retardant fire -resistant strenghthened type composite cable of multicore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991243U true CN204991243U (en) | 2016-01-20 |
Family
ID=55125586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520568372.4U Expired - Fee Related CN204991243U (en) | 2015-07-31 | 2015-07-31 | Fire -retardant fire -resistant strenghthened type composite cable of multicore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991243U (en) |
-
2015
- 2015-07-31 CN CN201520568372.4U patent/CN204991243U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |