CN208335847U - A kind of resistance to tension shielding polyethylene power cable - Google Patents
A kind of resistance to tension shielding polyethylene power cable Download PDFInfo
- Publication number
- CN208335847U CN208335847U CN201820995601.4U CN201820995601U CN208335847U CN 208335847 U CN208335847 U CN 208335847U CN 201820995601 U CN201820995601 U CN 201820995601U CN 208335847 U CN208335847 U CN 208335847U
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- Prior art keywords
- sheath
- wall
- periphery
- layer
- core
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 15
- -1 polyethylene Polymers 0.000 title claims abstract description 15
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims abstract description 22
- 238000005728 strengthening Methods 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 9
- 241000209140 Triticum Species 0.000 claims description 9
- 235000021307 Triticum Nutrition 0.000 claims description 9
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000005030 aluminium foil Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model provides a kind of polyethylene power cable of resistance to tension shielding, it is related to field of cable technology, including oversheath, inner sheath, four core wires, each core wire includes conductor insulation set, metallic conductor, metallic conductor is twisted by strand copper wire, the periphery of each core wire is equipped with first screen layer, the periphery of first screen layer is equipped with flexible sheath, the inner peripheral of flexible sheath is equipped with multiple arcuation protrusions, the convex surface of each arcuation protrusion is towards the center line of core wire, conjunction is mutually supported in every two adjacent flexible sheath periphery, strengthening core is equipped between the adjacent spring sheath outer wall of every two and inner sheath inner wall, the center of inner sheath is again provided with strengthening core；Anti-rot plastic layer, secondary shielding layer are equipped between oversheath and inner sheath, anti-rot plastic layer is located at the inside of secondary shielding layer；According to a kind of polyethylene power cable of resistance to tension shielding of the utility model embodiment, have the advantages that advantages of good shielding performance, tensile strength are high, anti-extrusion ability is strong.
Description
Technical field
The utility model relates to field of cable technology, more particularly to a kind of polyethylene power cable of resistance to tension shielding.
Background technique
Power cable is the cable for being used for transmission and distributing electric energy, and power cable is usually used in Urban Underground power grid, power station
Lead line, industrial and mining enterprises' in-line power and mistake river sea submarine transmission line.With the arrival of electric era, every family is every for convenience
Family electricity consumption, required power cable is also more and more, and the requirement to power cable also more come it is also high.And existing electric power electricity
Cable haves the shortcomings that shielding properties is poor, tensile resistance is poor, anti-extrusion ability is poor.
Utility model content
In order to overcome the drawbacks of the prior art, the technical problem to be solved by the utility model is to propose a kind of resistance to tension
Polyethylene power cable is shielded, has the advantages that advantages of good shielding performance, tensile strength are high, anti-extrusion ability is strong.
For this purpose, the following technical solution is employed for the utility model:
The utility model provides a kind of polyethylene power cable of resistance to tension shielding, including oversheath, is located at the outer shield
Cover internal inner sheath and four core wires inside the inner sheath, core wire described in each item include conductor insulation cover and
Metallic conductor in conductor insulation set, the metallic conductor are twisted by strand copper wire, core wire described in each item
Periphery be equipped with first screen layer, the periphery of the first screen layer is equipped with flexible sheath, the inner peripheral of the flexible sheath
Equipped with multiple arcuation protrusions, the convex surface of each arcuation protrusion is towards the center line of the core wire and each arcuation
The convex surface of protrusion is held in the periphery of the first screen layer, and the every two adjacent flexible sheath outer wall mutually supports conjunction,
Strengthening core is equipped between the adjacent flexible sheath outer wall of every two and the inner sheath inner wall, the center of the inner sheath is same
Equipped with the strengthening core；Anti-rot plastic layer, secondary shielding layer, the anti-rot plastic layer are equipped between the oversheath and inner sheath
Positioned at the inside of the secondary shielding layer, the anti-rot plastic layer coats the periphery of the inner sheath, the secondary shielding layer packet
Cover the periphery of the anti-rot plastic layer.
In the preferable technical solution of the utility model, the oversheath and the inner sheath are by crosslinked polyethylene system
At.
It is equipped with cotton paper wheat in the preferable technical solution of the utility model, in the oversheath to draw, the cotton paper wheat is drawn and twines
It is wound on the periphery of the secondary shielding layer.
In the preferable technical solution of the utility model, the outer wall of the inner sheath is set there are two symmetrically arranged groove,
The inner wall of the anti-rot plastic layer is equipped with toothed projections compatible with the groove.
In the preferable technical solution of the utility model, the centrally located strengthening core periphery and each elasticity are protected
Set is tangent, and the outer wall of remaining four strengthening core and the inner wall of the oversheath are tangent, and remaining four described reinforcement
The outer wall of core and the outer wall of the two neighboring flexible sheath are tangent.
The utility model has the following beneficial effects:
A kind of resistance to tension shielding polyethylene power cable provided by the utility model, by being arranged in the periphery of each core wire
Flexible sheath, and the inner circumferential of flexible sheath is equipped with arcuation protrusion of multiple convex surfaces towards core wire, so that when power cable is by outer
When the extruding force come, flexible sheath serves as energy absorbent block, reduces impact of the external extruding force to internal core using the deformation of itself,
To reduce influence of the external extruding force to internal core；Strengthening core is set between two neighboring flexible sheath, is greatly improved
The tensile resistance of cable；It is arranged by for the independent first screen layer of every wick arrangement, and in the external of inner sheath
Secondary shielding layer, can effectively by cable electric current by when generate it is electromagnetic-field-shielded in cable, it is therefore prevented that cable produce
Raw electromagnetic field effects are to other elements.
Detailed description of the invention
Fig. 1 is a kind of cross section for polyethylene power cable of resistance to tension shielding that specific embodiment of the present invention provides
Cross-sectional view.
In figure:
100, core wire；110, conductor insulation set；120, metallic conductor；200, first screen layer；300, flexible sheath；310,
Arcuation protrusion；400, strengthening core；500, inner sheath；510, groove；600, anti-rot plastic layer；610, toothed projections；700, second
Shielded layer；800, cotton paper wheat is drawn；900, oversheath.
Specific embodiment
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art and technical solution are briefly described, it should be apparent that, it is described below
Attached drawing be only some embodiments of the utility model, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, it can also be obtained according to these attached drawings other attached drawings.
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, including oversheath 900, the inner sheath 500 inside the oversheath 900 and being located at described
Four core wires 100 inside inner sheath 500, core wire 100 described in each item includes conductor insulation set 110 and to be located at the conductor exhausted
Metallic conductor 120 in edge set 110, the metallic conductor 120 are twisted by strand copper wire, core wire 100 described in each item
Periphery is equipped with first screen layer 200, and the periphery of the first screen layer 200 is equipped with flexible sheath 300, the flexible sheath
300 inner peripheral is equipped with multiple arcuation protrusions 310, and the convex surface of each arcuation protrusion 310 is towards in the core wire 100
The convex surface of heart line and each arcuation protrusion 310 is held in the periphery of the first screen layer 200, every two adjacent
300 outer wall of flexible sheath mutually supports conjunction, adjacent 300 outer wall of flexible sheath of every two and 500 inner wall of inner sheath
Between be equipped with strengthening core 400, the center of the inner sheath 500 is again provided with the strengthening core 400；The oversheath 900 and interior
Anti-rot plastic layer 600, secondary shielding layer 700 are equipped between sheath 500, the anti-rot plastic layer 600 is located at the secondary shielding
The inside of layer 700, the anti-rot plastic layer 600 coat the periphery of the inner sheath 500, and the secondary shielding layer 700 coats institute
The periphery of anti-rot plastic layer 600 is stated, the first screen layer 200 is using aluminium-foil paper as shielding material, the secondary shielding layer
700 using aluminium-foil papers and cover braiding copper wire band on aluminium-foil paper periphery as shielding material.
A kind of resistance to tension shielding polyethylene power cable provided by the utility model, by the periphery of each core wire 100
Flexible sheath 300 is set, and the inner circumferential of flexible sheath 300 is equipped with arcuation protrusion 310 of multiple convex surfaces towards core wire 100, so that
When power cable is by external extruding force, flexible sheath 300 serves as energy absorbent block, reduces external extruding using the deformation of itself
Impact of the power to internal core 100, to reduce influence of the external extruding force to internal core 100；In two neighboring elasticity shield
Strengthening core 400 is set between set 300, greatly improves the tensile resistance of cable；By configuring independent for every core wire 100
One shielded layer 200, and in the external secondary shielding layer 700 being arranged of inner sheath 500, can effectively lead to cable in electric current
Out-of-date generation it is electromagnetic-field-shielded in cable, it is therefore prevented that cable generate electromagnetic field effects to others elements.
Further, the oversheath 900 and the inner sheath 500 are made of crosslinked polyethylene, crosslinked polyethylene tool
There are good wearability and heat resistance, substantially increases the service life of power cable.
Further, it is equipped with cotton paper wheat in the oversheath 900 and draws 800, the cotton paper wheat draws 800 to be wrapped in described second
On the periphery of shielded layer 700, the cotton paper wheat draws 800 with high insulation resistance, proof voltage height, moisture resistant, low-shrinkage, is not easy
The anti abrasive advantage of embrittlement, the especially described cotton paper wheat draw 800 moisture resistant ability that can substantially reduce the change due to external environment
Change and the influence to electric signal normal transmission.
Further, the outer wall of the inner sheath 500 is set there are two symmetrically arranged groove 510, the anti-rot plastic layer
600 inner wall is equipped with toothed projections 610 compatible with the groove 510, the tooth on 600 inner wall of anti-rot plastic layer
Shape protrusion 610 is conducive to the anti-rot plastic layer 600 and is fastened on the inner sheath 500, reduce the anti-rot plastic layer 600 with
Opposite sliding between the inner sheath 500, to reduce the friction of 600 pairs of the anti-rot plastic layer inner sheath 500
Damage.
Further, centrally located 400 periphery of the strengthening core and each flexible sheath 300 are tangent, remaining
The outer wall of four strengthening cores 400 and the inner wall of the oversheath 900 are tangent, and remaining four strengthening cores 400
The outer wall of outer wall and the two neighboring flexible sheath 300 is tangent, and the strengthening core 400 being arranged in this way can fully ensure that electricity
Stable structure, shape rounding when cable stranding.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to
In the range of the utility model protection.
Claims (5)
1. a kind of polyethylene power cable of resistance to tension shielding, it is characterised in that:
Including oversheath (900), it is located at the oversheath (900) internal inner sheath (500) and is located at the inner sheath
(500) four internal core wires (100), core wire (100) described in each item include conductor insulation set (110) and are located at the conductor
Metallic conductor (120) in insulation sleeve (110), the metallic conductor (120) are twisted by strand copper wire, core described in each item
The periphery of line (100) is equipped with first screen layer (200), and the periphery of the first screen layer (200) is equipped with flexible sheath
(300), the inner peripheral of the flexible sheath (300) is equipped with multiple arcuations protrusions (310), each arcuation raised (310)
Convex surface is held in described first towards the convex surface of the center line of the core wire (100) and each arcuation raised (310)
The periphery of shielded layer (200), every two adjacent flexible sheath (300) outer wall mutually support conjunction, the adjacent bullet of every two
Property sheath (300) outer wall and the inner sheath (500) inner wall between be equipped with strengthening core (400), the center of the inner sheath (500)
It is again provided with the strengthening core (400)；Between the oversheath (900) and inner sheath (500) be equipped with anti-rot plastic layer (600),
Secondary shielding layer (700), the anti-rot plastic layer (600) are located at the inside of the secondary shielding layer (700), the anti-rot plastic
Layer (600) coats the periphery of the inner sheath (500), and the secondary shielding layer (700) coats the anti-rot plastic layer (600)
Periphery.
2. a kind of polyethylene power cable of resistance to tension shielding according to claim 1, it is characterised in that:
The oversheath (900) and the inner sheath (500) are made of crosslinked polyethylene.
3. a kind of polyethylene power cable of resistance to tension shielding according to claim 1, it is characterised in that:
It is equipped with cotton paper wheat in the oversheath (900) and draws (800), the cotton paper wheat draws (800) to be wrapped in the secondary shielding layer
(700) on periphery.
4. a kind of polyethylene power cable of resistance to tension shielding according to claim 1, it is characterised in that:
The outer wall of the inner sheath (500) is set there are two symmetrically arranged groove (510), the anti-rot plastic layer (600) it is interior
Wall is equipped with the groove (510) compatible toothed projections (610).
5. a kind of polyethylene power cable of resistance to tension shielding according to claim 1, it is characterised in that:
The centrally located strengthening core (400) periphery and each flexible sheath (300) are tangent, add described in remaining four
The inner wall of the outer wall and the oversheath (900) of strong core (400) is tangent, and the outer wall of remaining four strengthening cores (400)
It is tangent with the outer wall of the two neighboring flexible sheath (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820995601.4U CN208335847U (en) | 2018-06-26 | 2018-06-26 | A kind of resistance to tension shielding polyethylene power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820995601.4U CN208335847U (en) | 2018-06-26 | 2018-06-26 | A kind of resistance to tension shielding polyethylene power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208335847U true CN208335847U (en) | 2019-01-04 |
Family
ID=64785147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820995601.4U Expired - Fee Related CN208335847U (en) | 2018-06-26 | 2018-06-26 | A kind of resistance to tension shielding polyethylene power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208335847U (en) |
-
2018
- 2018-06-26 CN CN201820995601.4U patent/CN208335847U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20190104 |