CN206003546U - 35kV medium voltage DC cable - Google Patents
35kV medium voltage DC cable Download PDFInfo
- Publication number
- CN206003546U CN206003546U CN201620973379.9U CN201620973379U CN206003546U CN 206003546 U CN206003546 U CN 206003546U CN 201620973379 U CN201620973379 U CN 201620973379U CN 206003546 U CN206003546 U CN 206003546U
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- Prior art keywords
- cable
- conductor
- core
- utility
- medium voltage
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Abstract
A kind of 35kV medium voltage DC cable, conductor shield are extruded in outside conductor and form core；Core arranges two strands, and two strand cores are mutually wound in the shape of a spiral；Crosslinked polyetylene insulated layer, insulation screen, semiconductor nylon tape, screen layer, inner sheath, armouring, oversheath are extruded in outside spiral two strands core from inside to outside successively.The utility model passes through the spirally-wound method of conductor first, solves the problems, such as that the heart yearn in current cable is easily exposed after long-time use.The utility model is provided with zinc-plated steel band or steel wire or is armouring, and one is the overall mechanical strength that improve cable, while improving shield effectiveness.Additionally, copper wire and/or copper mesh screen layer serve good shield effectiveness.The utility model employs cross-linking polyethylene materials as insulating barrier, improves the heat resistance of cable.
Description
Technical field
The utility model belongs to cable, specifically provides a kind of 35kV medium voltage DC cable.
Background technology
In severe operating environment, cable easily because occur after bending fracture, aging, the problems such as come off, when leading
After body is exposed, it will potential safety hazard occur.
Utility model content
The utility model specifically provides a kind of 35kV medium voltage DC cable, and conductor shield 2 is extruded in the outer formation of conductor 1
Core；Core arranges two strands, and two strand cores are mutually wound in the shape of a spiral；
Crosslinked polyetylene insulated layer 3, insulation screen 4, semiconductor nylon tape 5, screen layer 6, inner sheath 7, armouring 8, outer
Sheath 9 is extruded in outside spiral two strands core from inside to outside successively.
Armouring 8 is specially galvanized steel strip and/or zinc-coated wire.
Screen layer 6 is copper wire and/or copper mesh.
The utility model passes through the spirally-wound method of conductor first, and the heart yearn solved in current cable is made in long-time
With problem easily exposed afterwards.Therefore, this is provided with double shielding layer using new conductor, serves the work of double shielding
With, and as two strands of heart yearn curls wind, therefore cable is difficult to be bent over, and protective layer is not susceptible to artificial fracture.
Conductor must assure that smooth, rounding, field intensity uniformity.
As the utility model is provided with zinc-plated steel band or steel wire or for armouring, one is the entirety that improve cable
Mechanical strength, while improve shield effectiveness.Additionally, copper wire and/or copper mesh screen layer serve good shield effectiveness.This reality
With the new cross-linking polyethylene materials that employ as insulating barrier, the heat resistance of cable is improved.The utility model is compared with traditional cable
Service life more than 50% can be improved, is that enterprise reduces relevant cost expenditure nearly 40%.
Description of the drawings
The present embodiment is described in further details with reference to Figure of description：
Fig. 1 is 35kV medium voltage DC cable cross-sectional view.
Specific embodiment
Reference numeral explanation：
1 conductor, 2 conductor shields, 3 crosslinked polyetylene insulated layers, 4 insulation screens, 5 semiconductor nylon tapes, 6 shieldings
Layer, 7 inner sheaths, 8 armourings, 9 oversheaths.
Embodiment 1
The present embodiment specifically provides a kind of 35kV medium voltage DC cable, and conductor shield 2 is extruded in the outer formation line of conductor 1
Core；Core arranges two strands, and two strand cores are mutually wound in the shape of a spiral；
Crosslinked polyetylene insulated layer 3, insulation screen 4, semiconductor nylon tape 5, screen layer 6, inner sheath 7, armouring 8, outer
Sheath 9 is extruded in outside spiral two strands core from inside to outside successively.
Armouring 8 is specially galvanized steel strip and/or zinc-coated wire.
Screen layer 6 is copper wire and/or copper mesh.
The present embodiment passes through the spirally-wound method of conductor first, and the heart yearn solved in current cable is used in long-time
Easily exposed problem afterwards.Therefore, this is provided with double shielding layer using new conductor, serves the work of double shielding
With, and as two strands of heart yearn curls wind, therefore cable is difficult to be bent over, and protective layer is not susceptible to artificial fracture.
Conductor must assure that smooth, rounding, field intensity uniformity.
As the present embodiment is provided with zinc-plated steel band or steel wire or for armouring, one is the integrated machine that improve cable
Tool intensity, while improve shield effectiveness.Additionally, copper wire and/or copper mesh screen layer serve good shield effectiveness.This enforcement
Example employs cross-linking polyethylene materials as insulating barrier, improves the heat resistance of cable.The present embodiment can be improved compared with traditional cable
Service life more than 50%, is that enterprise reduces relevant cost expenditure nearly 40%.
Embodiment 2
The present embodiment uses shielding layer of copper wires, and remaining structure, embodiment and Expected Results are same as Example 1.
Embodiment 3
The present embodiment uses copper mesh screen layer, and remaining structure, embodiment and Expected Results are same as Example 1.
Embodiment 4
The present embodiment uses copper mesh to cover copper wire as screen layer, remaining structure, embodiment and Expected Results and reality
Apply example 1 identical.
Embodiment 5
The present embodiment uses galvanized steel strip as armouring, remaining structure, embodiment and Expected Results and 1 phase of embodiment
With.
Above-described embodiment its object is to allow and be familiar with technique only for technology design of the present utility model and feature are described
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalence changes that is made according to the utility model Spirit Essence or modification, should all cover protection domain of the present utility model it
Interior.
Claims (3)
1. a kind of 35kV medium voltage DC cable, it is characterised in that：Conductor shield (2) is extruded in conductor (1) and forms outward core；Line
Core arranges two strands, and two strand cores are mutually wound in the shape of a spiral；
Crosslinked polyetylene insulated layer (3), insulation screen (4), semiconductor nylon tape (5), screen layer (6), inner sheath (7), armour
Dress (8), oversheath (9) are extruded in outside spiral two strands core from inside to outside successively.
2. according to the 35kV medium voltage DC cable described in claim 1, it is characterised in that described armouring (8) is specially galvanized steel
Band and/or zinc-coated wire.
3. according to the 35kV medium voltage DC cable described in claim 1, it is characterised in that described screen layer (6) be copper wire and/
Or copper mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973379.9U CN206003546U (en) | 2016-08-30 | 2016-08-30 | 35kV medium voltage DC cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973379.9U CN206003546U (en) | 2016-08-30 | 2016-08-30 | 35kV medium voltage DC cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206003546U true CN206003546U (en) | 2017-03-08 |
Family
ID=58195630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620973379.9U Expired - Fee Related CN206003546U (en) | 2016-08-30 | 2016-08-30 | 35kV medium voltage DC cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206003546U (en) |
-
2016
- 2016-08-30 CN CN201620973379.9U patent/CN206003546U/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: 20170308 Termination date: 20210830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |