CN202473378U - Cross-linked polyethylene insulated refractory power cable with polyvinyl chloride sheath - Google Patents
Cross-linked polyethylene insulated refractory power cable with polyvinyl chloride sheath Download PDFInfo
- Publication number
- CN202473378U CN202473378U CN2012200720865U CN201220072086U CN202473378U CN 202473378 U CN202473378 U CN 202473378U CN 2012200720865 U CN2012200720865 U CN 2012200720865U CN 201220072086 U CN201220072086 U CN 201220072086U CN 202473378 U CN202473378 U CN 202473378U
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- Prior art keywords
- layer
- crosslinked polyetylene
- polyetylene insulated
- power cable
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Abstract
The utility model relates to a cross-linked polyethylene insulated refractory power cable with a polyvinyl chloride sheath. The power cable comprises at least one metal conductor, wherein a refractory layer is coated outside each metal conductor; a cross-linked polyethylene insulated layer is arranged outside the refractory layer; a polyvinyl chloride outer sheath layer is arranged outside the cross-linked polyethylene insulated layer; and a wrapping tape layer is arranged between the cross-linked polyethylene insulated layer and the polyvinyl chloride outer sheath layer. The cross-linked polyethylene insulated refractory power cable with the polyvinyl chloride sheath, provided by the utility model, has the advantages of good refractory effect, large insulation reliability and good flame retardant effect and is used for places bearing no external mechanical force, such as indoors, tunnels, cable channels and the like.
Description
Technical field
The utility model relates to the technical field of power cable, especially a kind of crosslinked polyetylene insulated 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 equipment except harmful to human.
The utility model content
The technical problem that the utility model will solve is: in order to solve the problem that proposes in the above-mentioned background technology; The utility model provides a kind of crosslinked polyetylene insulated pvc sheath fireproof power cable; It fire-resistant effective, insulating reliability is big, good flame retardation effect.
The utility model solves the technical scheme that its technical problem adopted: a kind of crosslinked polyetylene insulated 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 crosslinked polyetylene insulated layer outward, and the outer polyvinyl chloride external sheath layer that is provided with of crosslinked polyetylene insulated layer is provided with belting layer between crosslinked polyetylene insulated 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 crosslinked polyetylene insulated 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 crosslinked polyetylene insulated layer outside belting layer and each metallic conductor and between the crosslinked polyetylene insulated layer outside each metallic conductor.
The beneficial effect of the utility model: each metallic conductor is coated with flame retardant coating in the cable of the utility model; 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 crosslinked polyetylene insulated layer outward, and under rated voltage 0.6/1kV condition of power supply, the insulating reliability of crosslinked polyetylene insulated layer is big; The good flame retardation effect of the outer polyvinyl chloride external sheath layer that is provided with of crosslinked polyetylene insulated layer, 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
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the cross section structure sketch map of the utility model embodiment one;
Fig. 2 is the cross section structure sketch map of the utility model embodiment two;
Fig. 3 is the cross section structure sketch map of the utility model embodiment three;
Fig. 4 is the cross section structure sketch map of the utility model embodiment four;
Fig. 5 is the cross section structure sketch map of the utility model embodiment five;
Fig. 6 is the cross section structure sketch map of the utility model embodiment six;
Fig. 7 is the cross section structure sketch map of the utility model embodiment seven;
Fig. 8 is the cross section structure sketch map of the utility model embodiment eight.
Among the figure 1, metallic conductor, 2, flame retardant coating, 3, crosslinked polyetylene insulated layer, 4, belting layer, 5, the polyvinyl chloride external sheath layer, 6, packed layer.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Crosslinked polyetylene insulated pvc sheath fireproof power cable like Fig. 1-the utility model shown in Figure 8; It comprises at least one metallic conductor 1; Each metallic conductor 1 is coated with flame retardant coating 2, and flame retardant coating 2 makes the fire-resistant effect of cable improve, and 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; Be provided with crosslinked polyetylene insulated layer 3 outside the flame retardant coating 2; Crosslinked polyetylene insulated layer 3 makes that the insulating reliability of cable is big, and the crosslinked polyetylene insulated layer 3 outer polyvinyl chloride external sheath layer 5 that is provided with, polyvinyl chloride external sheath layer 5 make the good flame retardation effect of cable; And then prolonged useful life of cable, be provided with belting layer 4 between crosslinked polyetylene insulated 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 crosslinked polyetylene insulated layer 3 and the belting layer 4; When metallic conductor 1 is 5 or 3+1 or 3+2 or 4+1, be equipped with packed layer 6 between crosslinked polyetylene insulated layer 3 between the outer crosslinked polyetylene insulated layer 3 of belting layer 4 and each metallic conductor 1 and outside each metallic conductor 1.
Be not provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment 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 utility model embodiment two as shown in Figure 2 are that 2 cross sections are circular structures; Be provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment three as shown in Figure 3 are that 3 cross sections are circular structures; Be provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment four as shown in Figure 4 are that 4 cross sections are circular structures; Be provided with packed layer 6 and the metallic conductor 1 of the utility model embodiment five as shown in Figure 5 are that 5 cross sections are circular structures; Packed layer 6 and the metallic conductor 1 that be provided with of the utility model embodiment 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 utility model embodiment 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 utility model embodiment eight as shown in Figure 8 is the structure of 4+1 cross section for circle.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (7)
1. crosslinked polyetylene insulated 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 crosslinked polyetylene insulated layer (3) that is provided with of flame retardant coating (2), the outer polyvinyl chloride external sheath layer (5) that is provided with of crosslinked polyetylene insulated layer (3) is provided with belting layer (4) between crosslinked polyetylene insulated layer (3) and the polyvinyl chloride external sheath layer (5).
2. crosslinked polyetylene insulated 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. crosslinked polyetylene insulated pvc sheath fireproof power cable according to claim 1 is characterized in that: described each metallic conductor (1) is copper core or aluminium core.
4. crosslinked polyetylene insulated pvc sheath fireproof power cable according to claim 1 is characterized in that: described metallic conductor (1) is 2 or 3 or 4.
5. crosslinked polyetylene insulated pvc sheath fireproof power cable according to claim 4 is characterized in that: be provided with packed layer (6) between described crosslinked polyetylene insulated layer (3) and the belting layer (4).
6. crosslinked polyetylene insulated 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. crosslinked polyetylene insulated pvc sheath fireproof power cable according to claim 6 is characterized in that: be equipped with packed layer (6) between the crosslinked polyetylene insulated layer (3) outside described belting layer (4) and each metallic conductor (1) and between the crosslinked polyetylene insulated layer (3) outside each metallic conductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200720865U CN202473378U (en) | 2012-02-29 | 2012-02-29 | Cross-linked polyethylene insulated refractory power cable with polyvinyl chloride sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200720865U CN202473378U (en) | 2012-02-29 | 2012-02-29 | Cross-linked polyethylene insulated refractory power cable with polyvinyl chloride sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473378U true CN202473378U (en) | 2012-10-03 |
Family
ID=46921522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200720865U Expired - Fee Related CN202473378U (en) | 2012-02-29 | 2012-02-29 | Cross-linked polyethylene insulated refractory power cable with polyvinyl chloride sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473378U (en) |
-
2012
- 2012-02-29 CN CN2012200720865U patent/CN202473378U/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 | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150715 Granted publication date: 20121003 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160115 Granted publication date: 20121003 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20160229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |