CN202534431U - Novel shielding crosslinked cable - Google Patents
Novel shielding crosslinked cable Download PDFInfo
- Publication number
- CN202534431U CN202534431U CN2012201875971U CN201220187597U CN202534431U CN 202534431 U CN202534431 U CN 202534431U CN 2012201875971 U CN2012201875971 U CN 2012201875971U CN 201220187597 U CN201220187597 U CN 201220187597U CN 202534431 U CN202534431 U CN 202534431U
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- CN
- China
- Prior art keywords
- conductor
- shielding
- crosslinked cable
- layer
- insulating layer
- 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 discloses a novel shielding crosslinked cable, which comprises a conductor provided with an insulating layer, wherein an outer shielding layer is arranged outside the insulating layer of the conductor, and an inner shielding layer is arranged between the conductor and the insulating layer; and the novel shielding crosslinked cable further comprises an inner sheath wrapping the conductor. According to the novel shielding crosslinked cable, the structure is simple, the manufacturing cost is low, the outer shielding layer is arranged outside the insulating layer of the conductor, and the inner shielding layer is arranged between the conductor and the insulating layer, the two shielding structures make a better shielding effect, and the electric field can be effectively equilibrated; in addition, the inner shielding layer is wound on the surface of the conductor directly, and has the advantages of small inner diameter, low shielding material consumption, and reduced cost.
Description
Technical field
The utility model relates to a kind of crosslinked cable, more precisely, relates in particular to a kind of preferably crosslinked cable of a kind of shield effectiveness.
Background technology
Crosslinked cable is meant that the insulating barrier of cable adopts cross-linked material.The most frequently used material is crosslinked polyethylene (XLPE).The crosslinking process process is that the polyethylene of linearity molecular structure (PE) material is passed through specific processing mode, makes it form the crosslinked polyethylene of netted minute line structure of build.Make the long-term working temperature that allows bring up to 90 ℃ (or higher) by 70 ℃, the short circuit allowable temperature is brought up to 250 ℃ (or higher) by 140 ℃, under the prerequisite that keeps its original superior electrical performance, has improved actual serviceability widely.Crosslinked cable generally is used for the dispensing of 8.7-15 kilovolt high-tension electricity.
Crosslinked cable of the prior art, its screen operated by rotary motion is at outermost layer, and its shield effectiveness is relatively poor, twines the rising that more screen can cause cost again, is unfavorable for the development of enterprise.
The utility model content
The utility model provides a kind of novel shielding crosslinked cable in order to solve the problem that exists in the prior art, and it is simple in structure, and shield effectiveness is good, and cost is lower.
For realizing above-mentioned purpose; The technical scheme of the utility model is: a kind of novel shielding crosslinked cable; Comprise a conductor that is provided with insulating barrier; The outside of said insulating layer of conductor is provided with one deck outer shielding layer, is provided with one deck internal shield between said conductor and the insulator, also is provided with the inner sheath with said conductor parcel.
Preferably, the cross-sectional area of said conductor is 300mm
2Or 35mm
2
The crosslinked cable of the utility model, it is simple in structure, and cost of manufacture is low; The outside of insulating layer of conductor is provided with one deck outer shielding layer, is provided with one deck internal shield between said conductor and the insulator, two-layer shielding construction; Make shield effectiveness good, can balanced effectively electric field.Internal shield is directly to twine in surface of conductors, and its internal diameter is little, and the shielding material of use is few, provides cost savings.
Description of drawings
Fig. 1 shows the structural representation of the utility model crosslinked cable.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
With reference to Fig. 1, the shielding crosslinked cable of the utility model, its insulating barrier are cross-linking polyethylene materials, can certainly adopt this area other cross-linked materials commonly used, are fit to the dispensing of 8.7-15 kilovolt high-tension electricity.It comprises a conductor 1 that is provided with insulating barrier 4, and wherein, conductor can adopt copper product or aluminum.
Also be provided with the inner sheath 8 with said conductor 1 parcel, inner sheath 8 can adopt PVC material or polyethylene, nylon material etc., mainly plays the effect of a protection.
The crosslinked cable of the utility model; Between conductor 1 and insulating barrier 4, also can be provided with one deck internal shield 3; The outside of insulating barrier 4 is provided with one deck outer shielding layer 5, and said internal shield 3 can also can adopt other materials known in the art for tinned copper wire is entwined with outer shielding layer 5.Be provided with internal shield 3, outer shielding layer 5 electric field that when distribution, produces of compensating cable effectively.Two-layer shielding construction makes shield effectiveness good.Internal shield 3 is directly to twine on the surface of conductor 1, and its internal diameter is little, and the shielding material of use is few, provides cost savings.
The improved technical scheme of the crosslinked cable of the utility model can also be as follows: the outside of said inner sheath 8 is provided with armour 7, the oversheath 1 that steel wire twines successively, and the material of oversheath 1 is the same with inner sheath, can be PVC, polyethylene or nylon.Between inner sheath 8 and oversheath 1, install one deck additional by the armour 7 that steel wire twines, increased its anti-radially mechanical force, can protect cable better, prolonged its useful life.
The crosslinked cable of the utility model also can be provided with one deck steel band screen in the outside of outer shielding layer 5, can more effectively balanced electric field, the effect of earial drainage in addition simultaneously.
The crosslinked cable of the utility model, the cross-sectional area of conductor 1 is preferably 300mm
2Or 35mm
2
The utility model is through preferred embodiment having carried out detailed explanation.Yet, through to the studying carefully of preamble, to the variation of each execution mode with to increase also be that one of ordinary skill in the art institute is conspicuous.Applicant's intention is all these variations and increases the part in the scope of the utility model claim that all comprised dropping on of the utility model.
Similar numbering refers to similar element in the whole text.For the purpose of clear, has the situation that some line, layer, element, parts or characteristic are amplified in the accompanying drawings.
The term that uses among this paper is merely to be explained concrete embodiment, and it is not to be intended to the utility model is limited.Only if definition is arranged in addition, all terms that use among this paper (comprising technical term and scientific terminology) are all identical with the utility model one of ordinary skill in the art's understanding.
Claims (2)
1. novel shielding crosslinked cable; It is characterized in that: comprise a conductor that is provided with insulating barrier; The outside of said insulating layer of conductor is provided with one deck outer shielding layer, is provided with one deck internal shield between said conductor and the insulator, also is provided with the inner sheath with said conductor parcel.
2. shielding crosslinked cable according to claim 1 is characterized in that: the cross-sectional area of said conductor is 300mm
2Or 35mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201875971U CN202534431U (en) | 2012-04-27 | 2012-04-27 | Novel shielding crosslinked cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201875971U CN202534431U (en) | 2012-04-27 | 2012-04-27 | Novel shielding crosslinked cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534431U true CN202534431U (en) | 2012-11-14 |
Family
ID=47135595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201875971U Expired - Fee Related CN202534431U (en) | 2012-04-27 | 2012-04-27 | Novel shielding crosslinked cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534431U (en) |
-
2012
- 2012-04-27 CN CN2012201875971U patent/CN202534431U/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: 20121114 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |