CN202473379U - Crosslinked polyethylene insulated steel wire armored polyethylene sheath power cable - Google Patents
Crosslinked polyethylene insulated steel wire armored polyethylene sheath power cable Download PDFInfo
- Publication number
- CN202473379U CN202473379U CN201220072087XU CN201220072087U CN202473379U CN 202473379 U CN202473379 U CN 202473379U CN 201220072087X U CN201220072087X U CN 201220072087XU CN 201220072087 U CN201220072087 U CN 201220072087U CN 202473379 U CN202473379 U CN 202473379U
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- CN
- China
- Prior art keywords
- polyethylene
- layer
- power cable
- crosslinked polyetylene
- polyetylene insulated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a crosslinked polyethylene insulated steel wire armored polyethylene sheath power cable which comprises at least two metal conductors, each metal conductor is covered by a crosslinked polyethylene insulated layer, and the crosslinked polyethylene insulated layer is covered by a polyethylene outer sheath layer. A polyethylene inner sheath layer is arranged between the crosslinked polyethylene insulated layer and the polyethylene outer sheath layer, and a steel wire armoring is arranged between the polyethylene inner sheath layer and the polyethylene outer sheath layer. The crosslinked polyethylene insulated steel wire armored polyethylene sheath power cable has the advantages of great insulation reliability, large carrying capacity and good flame retardant effect. In addition, the power cable can prevent damage caused by animals and plants and strengthen wear-resisting performance, is used in indoor areas, tunnels, cable trenches, vertical shafts or buried laying and the like, and can bear machinery external forces and certain pulling forces.
Description
Technical field
The utility model relates to the technical field of power cable, especially a kind of crosslinked polyetylene insulated wire armoring pe sheath 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.
Even if cable has good heat resistance simultaneously, in the higher occasion of fail safe, but can not prevent vegeto-animal destruction, also possibly bring big indirect loss to power supply.The cable occasions such as monitoring loop and protection circuit that are laid in, in indoor, tunnel, cable trough, but present cable generally can not bear pulling force and mechanical external force effect, makes cable laying after these occasions, can have certain potential safety hazard more.
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 wire armoring pe sheath power cable, and its insulating reliability is big, and ampacity is big; Good flame retardation effect; Can prevent vegeto-animal destruction and strengthen anti-wear performance, can bear mechanical external force and certain pulling force, enlarge its scope of application.
The utility model solves the technical scheme that its technical problem adopted: a kind of crosslinked polyetylene insulated wire armoring pe sheath power cable; It comprises at least two metallic conductors; Each metallic conductor is coated with crosslinked polyetylene insulated layer; Crosslinked polyetylene insulated layer is coated with the polyethylene external sheath layer, is provided with the polyethylene inner restrictive coating between crosslinked polyetylene insulated layer and the polyethylene external sheath layer, is provided with wire armoring between polyethylene inner restrictive coating and the polyethylene external sheath layer.
Further: the cross section of each metallic conductor is circle or fan-like pattern.
Further: each metallic conductor is copper core or aluminium core.
Further: metallic conductor is 2 or 3 or 4 or 3+1 or 5 or 4+1 or 3+2.
Further: be equipped with packed layer between the outer crosslinked polyetylene insulated layer that coats of polyethylene inner restrictive coating and each metallic conductor and between the outer crosslinked polyetylene insulated layer that coats of each metallic conductor.
The beneficial effect of the utility model: each metallic conductor is coated with crosslinked polyetylene insulated layer in the cable of the utility model; The insulating reliability of crosslinked polyetylene insulated layer is big; Have favorable mechanical physical property, environmental stress cracking resistance and resistance to wear, can bear concentrated mechanical stress; Under rated voltage 0.6/1kV condition of power supply, the maximum amount fixed temperature can reach 90 ℃ during crosslinked polyetylene insulated layer of long-term work, and ampacity is bigger.Crosslinked polyetylene insulated layer is coated with the polyethylene external sheath layer, is provided with the polyethylene inner restrictive coating, the good flame retardation effect of polyethylene external sheath layer and polyethylene inner restrictive coating between crosslinked polyetylene insulated layer and the polyethylene external sheath layer; Be provided with wire armoring between polyethylene inner restrictive coating and the polyethylene external sheath layer; Wire armoring can prevent vegeto-animal destruction and strengthen anti-wear performance; Prolonged the useful life of cable; Be used for indoor, tunnel, cable trough, vertical shaft or buried-pipe laying etc., can bear mechanical external force and certain pulling force, the scope of application is extensive.
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;
Fig. 9 is the cross section structure sketch map of the utility model embodiment nine;
Figure 10 is the cross section structure sketch map of the utility model embodiment ten;
Figure 11 is the cross section structure sketch map of the utility model embodiment 11.
Among the figure 1, metallic conductor, 2, crosslinked polyetylene insulated layer, 4, the polyethylene external sheath layer, 5, packed layer, 7, the polyethylene inner restrictive coating, 8, wire armoring.
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 wire armoring pe sheath power cable like the utility model of Fig. 1～shown in Figure 11; It comprises at least two metallic conductors 1; Each metallic conductor 1 is coated with crosslinked polyetylene insulated layer 2; The insulating reliability of crosslinked polyetylene insulated layer 2 is big, has favorable mechanical physical property, environmental stress cracking resistance and resistance to wear, can bear concentrated mechanical stress; Under rated voltage 0.6/1kV condition of power supply, the maximum amount fixed temperature can reach 90 ℃ during crosslinked polyetylene insulated layer of 2 long-term work, and ampacity is bigger.Crosslinked polyetylene insulated layer 2 is coated with polyethylene external sheath layer 4; Be provided with polyethylene inner restrictive coating 7 between crosslinked polyetylene insulated layer 2 and the polyethylene external sheath layer 4; The good flame retardation effect of polyethylene external sheath layer 4 and polyethylene inner restrictive coating 7; Be provided with wire armoring 8 between polyethylene inner restrictive coating 7 and the polyethylene external sheath layer 4, wire armoring 8 can prevent vegeto-animal destruction and strengthen anti-wear performance, has prolonged the useful life of cable; Can bear mechanical external force and certain pulling force, make the scope of application of cable enlarge.
The cross section of above-mentioned each metallic conductor 1 is circle or fan-like pattern; Each metallic conductor 1 is copper core or aluminium core; Metallic conductor 1 is 2 or 3 or 4 or 3+1 or 5 or 4+1 or 3+2; Be equipped with packed layer 5 between polyethylene inner restrictive coating 7 and each metallic conductor 1 outer crosslinked polyetylene insulated layer 2 that coats and between each metallic conductor 1 outer crosslinked polyetylene insulated layer 2 that coats.
Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment one as shown in Figure 1 are that 2 cross sections are circular structures; The utility model embodiment two as shown in Figure 2 be provided with packed layer 5 and metallic conductor 1 is 2 structures that the cross section is a fan-like pattern; Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment three as shown in Figure 3 are that 3 cross sections are circular structures; The utility model embodiment four as shown in Figure 4 be provided with packed layer 5 and metallic conductor 1 is 3 structures that the cross section is a fan-like pattern; Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment five as shown in Figure 5 are that 4 cross sections are circular structures; The utility model embodiment six as shown in Figure 6 be provided with packed layer 5 and metallic conductor 1 is 4 structures that the cross section is a fan-like pattern; Packed layer 5 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+1 cross section for circle; Packed layer 5 and the metallic conductor 1 that be provided with of the utility model embodiment eight as shown in Figure 8 is 3+1, and wherein 3 cross sections are fan-like pattern, and 1 cross section be the structure of circle; Be provided with packed layer 5 and the metallic conductor 1 of the utility model embodiment nine as shown in Figure 9 are that 5 cross sections are circular structures; Packed layer 5 and the metallic conductor 1 that be provided with of the utility model embodiment ten shown in figure 10 is the structure of 3+2 cross section for circle; Packed layer 5 and the metallic conductor 1 that be provided with of the utility model embodiment 11 shown in figure 11 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 (5)
1. crosslinked polyetylene insulated wire armoring pe sheath power cable; It is characterized in that: comprise at least two metallic conductors (1); Each metallic conductor (1) is coated with crosslinked polyetylene insulated layer (2); Crosslinked polyetylene insulated layer (2) is coated with polyethylene external sheath layer (4), is provided with polyethylene inner restrictive coating (7) between crosslinked polyetylene insulated layer (2) and the polyethylene external sheath layer (4), is provided with wire armoring (8) between polyethylene inner restrictive coating (7) and the polyethylene external sheath layer (4).
2. crosslinked polyetylene insulated wire armoring pe sheath power cable according to claim 1, it is characterized in that: the cross section of described each metallic conductor (1) is circle or fan-like pattern.
3. crosslinked polyetylene insulated wire armoring pe sheath 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 wire armoring pe sheath power cable according to claim 1 is characterized in that: described metallic conductor (1) is 2 or 3 or 4 or 3+1 or 5 or 4+1 or 3+2.
5. crosslinked polyetylene insulated wire armoring pe sheath power cable according to claim 1 is characterized in that: be equipped with packed layer (5) between the outer crosslinked polyetylene insulated layer (2) that coats of described polyethylene inner restrictive coating (7) and each metallic conductor (1) and between the outer crosslinked polyetylene insulated layer (2) that coats of each metallic conductor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220072087XU CN202473379U (en) | 2012-02-29 | 2012-02-29 | Crosslinked polyethylene insulated steel wire armored polyethylene sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220072087XU CN202473379U (en) | 2012-02-29 | 2012-02-29 | Crosslinked polyethylene insulated steel wire armored polyethylene sheath power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473379U true CN202473379U (en) | 2012-10-03 |
Family
ID=46921523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220072087XU Expired - Fee Related CN202473379U (en) | 2012-02-29 | 2012-02-29 | Crosslinked polyethylene insulated steel wire armored polyethylene sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473379U (en) |
-
2012
- 2012-02-29 CN CN201220072087XU patent/CN202473379U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20160229 |