CN106205849A - Power transmission cable - Google Patents
Power transmission cable Download PDFInfo
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- CN106205849A CN106205849A CN201510459990.XA CN201510459990A CN106205849A CN 106205849 A CN106205849 A CN 106205849A CN 201510459990 A CN201510459990 A CN 201510459990A CN 106205849 A CN106205849 A CN 106205849A
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- periphery
- conductive layer
- semiconduction
- power transmission
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Abstract
The present invention provides a kind of power transmission cable, which inhibits the depression of external semi-conductive layer and the insulating barrier caused by the metal wire constituting screen layer.This power transmission cable (1) has: the inside semi-conductive layer (3) formed in the periphery of conductor (2), at the insulating barrier (4) that the periphery of internal semi-conductive layer (3) is formed, the external semi-conductive layer (5) formed in the periphery of insulating barrier (4), the semiconduction belt (6) being wound around semiconduction band (60) in the periphery of external semi-conductive layer (5) and formed, the screen layer (7) being wound around metal wire (70) in the periphery of semiconduction belt (6) and formed, and the restrictive coating (9) of the outer circumferential side formation at screen layer (7).
Description
Technical field
The present invention relates to the power transmission cable that high voltage is transmitted electricity.
Background technology
As the existing power transmission cable that high voltage is transmitted electricity, such as, propose following cable, its by
The periphery of the conductor that twisted wire is formed forms insulating barrier across internal semi-conductive layer, in the periphery of this insulating barrier every
External semi-conductive layer and form the screen layer of winding metal wire, in the periphery of this screen layer across compression
Carry and form restrictive coating (referring for example to patent documentation 1).
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2014-7042 publication
Summary of the invention
The problem that invention is to be solved
But, in existing power transmission cable, it is coated to by lead outside it to suppress the deformation of restrictive coating
State under time restrictive coating is carried out high-temperature cross-linking, temperature during crosslinking can make insulating barrier expand, but sometimes by
This is caused compacting, in metal wire press-in external semi-conductive layer and insulating barrier by the metal wire in screen layer.Additionally,
When external semi-conductive layer deforms due to metal wire, electrical field deformation and cause electric field at part collection
In, therefore there is material and occur with this as the starting point to deteriorate year in year out, the worry of insulation breakdown occurs.
Here, it is an object of the invention to provide a kind of power transmission cable, which inhibits by the gold constituting screen layer
Belong to external semi-conductive layer and the depression of insulating barrier that line causes.
The method of solution problem
The present invention is for the purpose of solving the problems referred to above, it is provided that a kind of power transmission cable, has: in the periphery of conductor
The inside semi-conductive layer formed, the insulating barrier formed in the periphery of aforementioned inner semi-conductive layer, in aforementioned dielectric
Layer periphery formed external semi-conductive layer, the periphery of said external semi-conductive layer be wound around semiconduction band and
The semiconduction belt formed, the shielding formed at the periphery of aforementioned semiconduction belt winding metal wire
Layer and the restrictive coating of the outer circumferential side formation at aforementioned screen layer.
Aforementioned semiconduction belt be preferably in the periphery of said external semi-conductive layer by semiconduction band along
The length direction of cable spirally overlap wrapping and formed.Additionally, the aforementioned metal line of aforementioned screen layer is excellent
Choosing is the wire rod of a diameter of 0.4～0.6mm.Aforementioned restrictive coating is suitable for when periphery is coated to by lead pipe
Cross-link.
Invention effect
In accordance with the invention it is possible to suppress external semi-conductive layer and the insulation caused by the metal wire constituting screen layer
The depression of layer.
Accompanying drawing explanation
Fig. 1 is the sectional view of the power transmission cable that embodiments of the present invention relate to.
Fig. 2 is the cross-sectional view of the power transmission cable shown in Fig. 1.
Symbol description
1 power transmission cable, 2 conductors, 3 internal semi-conductive layers, 4 insulating barriers, 5 external semi-conductive layers, 6 half
Electric conductivity belt, 7 screen layers, 8 compression belts, 9 restrictive coatings, 60 semiconduction bands, 70 metal wires,
80 holddown belts
Detailed description of the invention
Hereinafter, referring to the drawings embodiments of the present invention are illustrated.Here, in each figure, for having
The element of substantially identical function, uses identical symbol to represent and omits its repeat specification.
[embodiment]
Fig. 1 is the sectional view of the power transmission cable that embodiments of the present invention relate to.Fig. 2 is defeated shown in Fig. 1
The cross-sectional view of electrical cables.
This power transmission cable 1 is configured to have following structure: the conductor 2 that formed by twisted wire, outside conductor 2
The inside semi-conductive layer 3 that week is formed, the insulating barrier 4 formed in the periphery of internal semi-conductive layer 3, in insulation
Layer 4 periphery formed external semi-conductive layer 5, the periphery of external semi-conductive layer 5 be wound around semiconduction band
60 and formed semiconduction belt 6, the periphery of semiconduction belt 6 be wound around metal wire 70 and formed
Screen layer 7, be wound around holddown belt 80 in the periphery of screen layer 7 and the compression belt 8 that formed and in pressure
The restrictive coating 9 that the periphery of taut band layer 8 is formed.
Conductor 2 is by stranded for multifilament and formed.As monofilament, such as, can use tin annealed copper wire etc.
Wire rod.The high voltage of such as more than 7000V is transmitted electricity by conductor 2.
Internal semi-conductive layer 3 and external semi-conductive layer 5 are provided for relaxing the concentration of electric field, the most permissible
By in ethylene propylene rubber, Ethylene-vinyl acetate copolymerization (EVA) rubber such as resin, butyl rubber
Disperse the electroconductive powders such as carbon thus give electric conductivity, and carried out extrusion molding and formed.
Insulating barrier 4 such as can by by ethylene propylene rubber, vinyl chloride, crosslinked polyethylene, silicone rubber,
The materials such as fluorine based material carry out extrusion molding and are formed.
Semiconduction belt 6 be in the periphery of external semi-conductive layer 5 by semiconduction band 60 along cable
Length direction is spirally formed according to the mode overlap wrapping of 1/4～1/2 overlap of such as bandwidth.Half
Electric conductivity band 60 is such as to have enrolled at the end of warp and the parallel formed by nylon or artificial silk, PET etc.
Cloth or non-weaving cloth are containing being immersed in rubber such as being dispersed with the ethylene propylene rubber of the electroconductive powders such as carbon, butyl rubber
In and formed, the semiconduction band that such as can to use thickness be 0.1～0.4mm, width is 30～70mm
60。
Screen layer 7 is by axial with spiral along cable of metal wire 70 in the periphery of semiconduction belt 6
Shape is wound around and is formed.Metal wire 70 is such as formed by conductive materials such as tin plating soft coppers, it is possible to use such as
A diameter of 0.4～the wire rod of 0.6mm.Screen layer 7 ground connection in use.By the diameter by metal wire 70
It is set to 0.4～0.6mm, with the diameter of metal wire more than compared with the situation of 0.6mm, restrictive coating 9 is being entered
The external semi-conductive layer 5 caused by metal wire during row crosslinking and the amount of recess of insulating barrier 4 diminish.
Compressing belt 8 is by holddown belt 80 axially spirally weighing along cable in the periphery of screen layer 7
Fold and be wound around and formed.Holddown belt 80 such as can use thickness to be 0.03～0.5mm, width is 50～90mm
The band formed by plastics or artificial silk.
Restrictive coating 9 such as can be by natural rubber, butyl rubber, halogenated butyl rubber, ethylene, propylene
Rubber, neoprene, styrene butadiene ribber, nitrile rubber, chlorosulfonated polyethylene, chlorinated polyethylene,
Epichlorohydrin rubber, acrylic rubber, silicone rubber, fluorubber, polyurethane rubber, non-halogen polyolefin elastic
The rubber such as body add cross-linking agent etc. and carries out extrusion molding and formed.
(manufacture method)
Then, an example of the manufacture method of handling cable 1 is illustrated.
In the periphery of conductor 2, by inside semi-conductive layer 3, insulating barrier 4, external semi-conductive layer 5 according to this
Sequentially extrusion molding.Then, in the periphery of external semi-conductive layer 5 by semiconduction band 60 along cable
Length direction is spirally wound around and forms semiconduction belt 6, in the periphery of semiconduction belt 6 by gold
Belong to line 70 and form screen layer 7 along the axial screw winding of cable, will compress in the periphery of screen layer 7
Compression belt 8 is formed along being axially spirally wound around of cable with 80.Then, belt 8 is being compressed
Periphery carry out extrusion molding and obtain restrictive coating 9.
Then, it is coated to lead in the periphery of restrictive coating 9 thus forms lead pipe, restrictive coating 9 is carried out high-temperature cross-linking.
Then, lead pipe is removed.Thus manufacture power transmission cable 1.Power transmission cable of the present embodiment can be used in
The cable of the extra-lnigh tension of such as rail truck.
(effect of present embodiment, effect)
According to present embodiment, it is achieved following effect, effect.
(1) although owing to high temperature when cross-linking restrictive coating 9 can make insulating barrier 4 expand, but this by
The swollen of insulating barrier 4 is made in the semiconduction belt 6 being present between external semi-conductive layer 5 and screen layer 7
Swollen it is compressed, therefore, it is possible to the external semi-conductive layer that suppression is caused by the metal wire 70 constituting screen layer 7
5 and the depression (deformation) of insulating barrier 4.
(2) owing to the external semi-conductive layer 5 and the deformation of insulating barrier 4 that are caused by metal wire 70 can be suppressed,
Therefore, it is possible to reduce the deformation of electric field, it is to avoid deteriorate, due to material, the insulation breakdown caused year in year out.
(3) owing to semiconduction band 60 being spirally wound around in the periphery of external semi-conductive layer 5, therefore
It is able to ensure that bendability.
[variation]
But, embodiments of the present invention are not limited to above-mentioned embodiment, at the model without departing from present subject matter
In enclosing, it can be various embodiment.Such as, semiconduction belt 6 is by half in the above-described embodiment
Electric conductivity band 60 is spirally wound around and is formed, but for less require bendability local time, also
Can be formed with longitudinally disposed semiconduction band 60.
Claims (4)
1. a power transmission cable, has:
The periphery of conductor formed inside semi-conductive layer,
The insulating barrier that formed in the periphery of described internal semi-conductive layer,
The periphery of described insulating barrier formed external semi-conductive layer,
The periphery of described external semi-conductive layer be wound around semiconduction band and formed semiconduction belt,
Be wound around metal wire in the periphery of described semiconduction belt and the screen layer that formed and
At the restrictive coating that the outer circumferential side of described screen layer is formed.
Power transmission cable the most according to claim 1, wherein, described semiconduction belt is described
The periphery of external semi-conductive layer by semiconduction band along the length direction spirally overlap wrapping of cable
Formed.
Power transmission cable the most according to claim 1 and 2, wherein, the described metal of described screen layer
Line is the wire rod of a diameter of 0.4～0.6mm.
4. according to the power transmission cable according to any one of claims 1 to 3, wherein, described restrictive coating is outside
Cross-link under the state that week is coated to by lead pipe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-235370 | 2014-11-20 | ||
| JP2014235370A JP2016100148A (en) | 2014-11-20 | 2014-11-20 | Power transmission cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106205849A true CN106205849A (en) | 2016-12-07 |
Family
ID=56077338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510459990.XA Pending CN106205849A (en) | 2014-11-20 | 2015-07-30 | Power transmission cable |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016100148A (en) |
| CN (1) | CN106205849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488247A (en) * | 2021-06-04 | 2021-10-08 | 安徽凌宇电缆科技有限公司 | Household cable with high-strength buffering function |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7092090B2 (en) * | 2019-04-15 | 2022-06-28 | 日立金属株式会社 | Power transmission cable using non-halogen flame-retardant resin composition |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147112U (en) * | 1984-03-11 | 1985-09-30 | 住友電気工業株式会社 | Power cable with wire thin layer |
| JPS6180530U (en) * | 1984-11-01 | 1986-05-29 | ||
| CN201038711Y (en) * | 2007-05-22 | 2008-03-19 | 宁波东方电缆有限公司 | Soft joint for crosslinked polyethylene cable |
| JP2014007042A (en) * | 2012-06-25 | 2014-01-16 | Viscas Corp | Power cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5772854B2 (en) * | 2013-03-26 | 2015-09-02 | 日立金属株式会社 | Special high-voltage cable for non-halogen railway vehicles |
-
2014
- 2014-11-20 JP JP2014235370A patent/JP2016100148A/en active Pending
-
2015
- 2015-07-30 CN CN201510459990.XA patent/CN106205849A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147112U (en) * | 1984-03-11 | 1985-09-30 | 住友電気工業株式会社 | Power cable with wire thin layer |
| JPS6180530U (en) * | 1984-11-01 | 1986-05-29 | ||
| CN201038711Y (en) * | 2007-05-22 | 2008-03-19 | 宁波东方电缆有限公司 | Soft joint for crosslinked polyethylene cable |
| JP2014007042A (en) * | 2012-06-25 | 2014-01-16 | Viscas Corp | Power cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488247A (en) * | 2021-06-04 | 2021-10-08 | 安徽凌宇电缆科技有限公司 | Household cable with high-strength buffering function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016100148A (en) | 2016-05-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |