CN103295687A - Polyvinyl chloride insulating polyvinyl chloride sheath fire-resistant power cable - Google Patents
Polyvinyl chloride insulating polyvinyl chloride sheath fire-resistant power cable Download PDFInfo
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- CN103295687A CN103295687A CN 201210049812 CN201210049812A CN103295687A CN 103295687 A CN103295687 A CN 103295687A CN 201210049812 CN201210049812 CN 201210049812 CN 201210049812 A CN201210049812 A CN 201210049812A CN 103295687 A CN103295687 A CN 103295687A
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- polyvinyl chloride
- layer
- chloride insulation
- metallic conductor
- power cable
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Abstract
The invention relates to a polyvinyl chloride insulating polyvinyl chloride sheath fire-resistant power cable which comprises at least one metal conductor, wherein each metal conductor is wrapped with a fire-resistant layer, each fire-resistant layer is wrapped with a polyvinyl chloride insulating layer, each polyvinyl chloride insulating layer is wrapped with a polyvinyl chloride outer sheath layer, and a wrapping belt layer is arranged between each polyvinyl chloride insulating layer and each polyvinyl chloride outer sheath layer. The cable is large in insulating reliability and good in anti-flaming effect, and is used for indoor places, tunnels, cable ducts and other occasions which do not bear external mechanical force.
Description
Technical field
The present invention relates to the technical field of power cable, especially a kind of polyvinyl chloride insulation pvc sheath fireproof power cable.
Background technology
The current capacity of cable is relevant with the sectional area of conductor thread core usually, conductor temperature is raise, the temperature of the outer insulating barrier that coats of conductor surpasses the last change that can cause on the insulating barrier generation performance in limited time, thereby the insulating reliability of insulating barrier is reduced greatly, influence the useful life of cable.
Existing common cable exists structural stability difference and incendive problem, so the fire-retardant problem of the lsafety level of electric wiring and cable more and more causes people's attention.
The fire resistance of simultaneously present cable is relatively poor, in case breaking out of fire, cable fire can produce a large amount of dense smokes, makes rescue work be difficult to carry out, the hydracid corrosive gas that discharges during the substance combustion of Halogen also can shine into certain infringement to equipment except harmful to human.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve the problem that proposes in the above-mentioned background technology, the invention provides a kind of polyvinyl chloride insulation pvc sheath fireproof power cable, and it fire-resistant effective, insulating reliability is big, good flame retardation effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of polyvinyl chloride insulation pvc sheath fireproof power cable, comprise at least one metallic conductor, each metallic conductor is coated with flame retardant coating, flame retardant coating is provided with the polyvinyl chloride insulation layer outward, the polyvinyl chloride insulation layer is provided with the polyvinyl chloride external sheath layer outward, is provided with belting layer between polyvinyl chloride insulation layer and the polyvinyl chloride external sheath layer.
Further: the cross section of each metallic conductor is circular.
Further: each metallic conductor is copper core or aluminium core.
Further: metallic conductor is 2 or 3 or 4.
Further: be provided with packed layer between polyvinyl chloride insulation layer and the belting layer.
Further: metallic conductor is 5 or 3+1 or 3+2 or 4+1.
Further: be equipped with packed layer between the polyvinyl chloride insulation layer outside belting layer and each metallic conductor and between the polyvinyl chloride insulation layer outside each metallic conductor.
Beneficial effect of the present invention: each metallic conductor is coated with flame retardant coating in the cable of the present invention, make the fire-resistant effect of cable improve, flame retardant coating can effectively prevent hydracid corrosive gas harmful to human and the equipment that cable discharges when the breaking out of fire after-combustion produces the substance combustion of a large amount of dense smokes and Halogen; Flame retardant coating is provided with the polyvinyl chloride insulation layer outward, and under rated voltage 0.6/1kV condition of power supply, the insulating reliability of polyvinyl chloride insulation layer is big; The good flame retardation effect of the polyvinyl chloride external sheath layer that the polyvinyl chloride insulation layer is provided with outward, and then prolonged useful life of cable, the place that this cable is used for is indoor, tunnel and cable trough etc. do not bear mechanical external force.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the cross section structure schematic diagram of the embodiment of the invention one;
Fig. 2 is the cross section structure schematic diagram of the embodiment of the invention two;
Fig. 3 is the cross section structure schematic diagram of the embodiment of the invention three;
Fig. 4 is the cross section structure schematic diagram of the embodiment of the invention four;
Fig. 5 is the cross section structure schematic diagram of the embodiment of the invention five;
Fig. 6 is the cross section structure schematic diagram of the embodiment of the invention six;
Fig. 7 is the cross section structure schematic diagram of the embodiment of the invention seven;
Fig. 8 is the cross section structure schematic diagram of the embodiment of the invention eight.
Among the figure 1, metallic conductor, 2, flame retardant coating, 3, the polyvinyl chloride insulation layer, 4, belting layer, 5, the polyvinyl chloride external sheath layer, 6, packed layer.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As Fig. 1-a kind of polyvinyl chloride insulation pvc sheath fireproof power cable of the present invention shown in Figure 8, it comprises at least one metallic conductor 1, each metallic conductor 1 is coated with flame retardant coating 2, flame retardant coating 2 makes the fire-resistant effect of cable improve, can effectively prevent hydracid corrosive gas harmful to human and equipment that cable discharges when the breaking out of fire after-combustion produces the substance combustion of a large amount of dense smokes and Halogen, the flame retardant coating 2 outer polyvinyl chloride insulation layers 3 that are provided with, polyvinyl chloride insulation layer 3 makes that the insulating reliability of cable is big, the polyvinyl chloride insulation layer 3 outer polyvinyl chloride external sheath layer 5 that is provided with, polyvinyl chloride external sheath layer 5 makes the good flame retardation effect of cable, and then prolonged useful life of cable, be provided with belting layer 4 between polyvinyl chloride insulation layer 3 and the polyvinyl chloride external sheath layer 5.
The cross section of above-mentioned each metallic conductor 1 is circular; Each metallic conductor 1 is copper core or aluminium core; When metallic conductor 1 is 2 or 3 or 4, be provided with packed layer 6 between polyvinyl chloride insulation layer 3 and the belting layer 4; When metallic conductor 1 is 5 or 3+1 or 3+2 or 4+1, between the outer polyvinyl chloride insulation layer 3 of belting layer 4 and each metallic conductor 1 and be equipped with packed layer 6 between each metallic conductor 1 polyvinyl chloride insulation layer 3 outward.
Be not provided with packed layer 6 and the metallic conductor 1 of the embodiment of the invention one as shown in Figure 1 are that 1 cross section is circular structure; Be provided with packed layer 6 and the metallic conductor 1 of the embodiment of the invention two as shown in Figure 2 are that 2 cross sections are circular structure; Be provided with packed layer 6 and the metallic conductor 1 of the embodiment of the invention three as shown in Figure 3 are that 3 cross sections are circular structure; Be provided with packed layer 6 and the metallic conductor 1 of the embodiment of the invention four as shown in Figure 4 are that 4 cross sections are circular structure; Be provided with packed layer 6 and the metallic conductor 1 of the embodiment of the invention five as shown in Figure 5 are that 5 cross sections are circular structure; Packed layer 6 and the metallic conductor 1 that be provided with of the embodiment of the invention six as shown in Figure 6 is the structure of 3+1 cross section for circle; Packed layer 6 and the metallic conductor 1 that be provided with of the embodiment of the invention seven as shown in Figure 7 is the structure of 3+2 cross section for circle; Packed layer 6 and the metallic conductor 1 that be provided with of the embodiment of the invention eight as shown in Figure 8 is the structure of 4+1 cross section for circle.
Be enlightenment with above-mentioned foundation desirable embodiment of the present invention, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (7)
1. polyvinyl chloride insulation pvc sheath fireproof power cable, it is characterized in that: comprise at least one metallic conductor (1), each metallic conductor (1) is coated with flame retardant coating (2), the outer polyvinyl chloride insulation layer (3) that is provided with of flame retardant coating (2), polyvinyl chloride insulation layer (3) is outer to be provided with polyvinyl chloride external sheath layer (5), is provided with belting layer (4) between polyvinyl chloride insulation layer (3) and the polyvinyl chloride external sheath layer (5).
2. a kind of polyvinyl chloride insulation pvc sheath fireproof power cable according to claim 1 is characterized in that: the cross section of described each metallic conductor (1) is for circular.
3. a kind of polyvinyl chloride insulation pvc sheath fireproof power cable according to claim 1, it is characterized in that: described each metallic conductor (1) is copper core or aluminium core.
4. a kind of polyvinyl chloride insulation pvc sheath fireproof power cable according to claim 1, it is characterized in that: described metallic conductor (1) is 2 or 3 or 4.
5. a kind of polyvinyl chloride insulation pvc sheath fireproof power cable according to claim 4 is characterized in that: be provided with packed layer (6) between described polyvinyl chloride insulation layer (3) and the belting layer (4).
6. a kind of polyvinyl chloride insulation pvc sheath fireproof power cable according to claim 1 is characterized in that: described metallic conductor (1) is 5 or 3+1 or 3+2 or 4+1.
7. a kind of polyvinyl chloride insulation pvc sheath fireproof power cable according to claim 6 is characterized in that: be equipped with packed layer (6) between the polyvinyl chloride insulation layer (3) outside described belting layer (4) and each metallic conductor (1) and between the polyvinyl chloride insulation layer (3) outside each metallic conductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210049812 CN103295687A (en) | 2012-02-29 | 2012-02-29 | Polyvinyl chloride insulating polyvinyl chloride sheath fire-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210049812 CN103295687A (en) | 2012-02-29 | 2012-02-29 | Polyvinyl chloride insulating polyvinyl chloride sheath fire-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103295687A true CN103295687A (en) | 2013-09-11 |
Family
ID=49096408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210049812 Pending CN103295687A (en) | 2012-02-29 | 2012-02-29 | Polyvinyl chloride insulating polyvinyl chloride sheath fire-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103295687A (en) |
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2012
- 2012-02-29 CN CN 201210049812 patent/CN103295687A/en active Pending
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |