CN102969089A - Stranding method of cross-linked polyethylene insulation power cable conducting wire core - Google Patents
Stranding method of cross-linked polyethylene insulation power cable conducting wire core Download PDFInfo
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- CN102969089A CN102969089A CN2012104576552A CN201210457655A CN102969089A CN 102969089 A CN102969089 A CN 102969089A CN 2012104576552 A CN2012104576552 A CN 2012104576552A CN 201210457655 A CN201210457655 A CN 201210457655A CN 102969089 A CN102969089 A CN 102969089A
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- linked polyethylene
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Abstract
The invention relates to a stranding method of a cross-linked polyethylene insulation power cable conducting wire core. The method is characterized in that a layered compression stranding method is adopted, and in the stranding processing course, alcohol with the purity larger than or equal to 96% is used for carrying out instillation cooling treatment on a mold; in the stranding process, the mold is used for assisting in carrying out wire twisting and compressing operations; and the stranding process also meets the following requirements: back-twist stranding is not carried out, and the stranding direction of each layer is that the outmost layer is to the left, and adjacent layers are in the opposite direction. The cross-linked polyethylene insulation power cable conducting stranded wire prepared by the method has the prominent characteristics of uniform stranding, high reliability, long service life and the like. The stranding method has expectable relatively huge economic value and social value.
Description
Technical field
The present invention relates to the power cable preparing technical field, provide especially a kind of power cable with cross-linked polyethylene insulation conductor wire core strand method processed.
Background technology
In the prior art, power cable conductor wire core strand method processed is varied, but difference according to requirements also needs to develop new related manufacturing process, and people urgently wish to obtain the good power cable with cross-linked polyethylene insulation conductor wire core strand method processed of a kind of technique effect.
Summary of the invention
The purpose of this invention is to provide the good power cable with cross-linked polyethylene insulation conductor wire core strand method processed of a kind of technique effect.
The invention provides a kind of power cable with cross-linked polyethylene insulation conductor wire core strand method processed, it is characterized in that: the strand method processed that adopts layering to press, twist the alcohol that uses content 〉=96% purity in the course of processing processed to the mould cooling processing that instils; Use mould auxiliaryly to carry out doubling in the strand process processed, press operation;
Strand process processed also satisfies following requirement: not back twist is stranded, each layer direction of lay → outermost layer left-hand, and adjacent layer is opposite; The adjacent layer opposite direction is for the internal stress of offsetting twisting → make core Stability Analysis of Structures; Each layer twisting pitch → concerning core stability, flexibility, D.C. resistance and material consumption.Although the larger resistance of pitch is less than normal, material is economized a little, thus poor stability, flexibility poor → control by the operation card requirement.
Described power cable with cross-linked polyethylene insulation conductor wire core strand method processed, after strand method processed that adopts layering to press system that conductor wire core is twisted operates, also carry out following processing: the PE ambroin of sneaking into crosslinking agent di-sec-octyl phthalate DCP at high temperature, high pressure N
2Effect is lower, and it is crosslinked polyethylene XLPE that the PE of linear structure is become cancellated PE, thereby improves the serviceability of cable;
Aforesaid operations specifically can be the construction of internal shield or outer shielding layer, interior screen: extrude semi-conductive screen plastics (conductor screen) at conductor; Outer screen: extrude semi-conductive screen plastics (insulation shielding) in the insulation appearance.
The power cable with cross-linked polyethylene insulation conduction twisted wire strand system that the present invention prepares is even, and reliability is high, the outstanding features such as long service life.It has expected comparatively huge economic worth and social value.
Embodiment
Embodiment 1
A kind of power cable with cross-linked polyethylene insulation conductor wire core strand method processed, the strand system of use is as follows with the preparation process of raw material and raw material core:
Power cable with cross-linked polyethylene insulation core preparation method, it adopts wire-drawing processing method to prepare described power cable with cross-linked polyethylene insulation core, and concrete preparation process satisfies following requirement: raw material selection φ 9.5 ± 0.2mm round aluminum rod; The copper bar is specially the A8 type, 20 ℃ of resistivity of copper bar≤0.02801 Ω .mm
2/ m; Elongation at break 〉=6%; Drawing lubricant: 60% butter that mixes+40% machine oil; The concrete continuous wire drawing method of using prepares described power cable with cross-linked polyethylene insulation core, and wire-drawing temperature is 300-400 ℃; Carry out resistance-type continuous annealing after the wire drawing and process, the cooling fluid of annealing usefulness is the 0.5-1.0% suds, circulation-supplied.
The described 6-35kV power cable with cross-linked polyethylene insulation core for preparing is LY
4The firmly round aluminum steel of type electrician, it satisfies following requirement: 20 ℃ of resistivity≤0.028264 Ω mm
2/ m; Tensile strength 100-130N/mm
2Its operative norm is GB/T 12706.2-2002; GB/T11017.1-2002.
The strand method processed that described power cable with cross-linked polyethylene insulation conductor wire core strand method processed adopts layering to press is twisted the alcohol that uses content 〉=96% purity in the course of processing processed to the mould cooling processing that instils; Use mould auxiliaryly to carry out doubling in the strand process processed, press operation;
Strand process processed also satisfies following requirement: not back twist is stranded, each layer direction of lay → outermost layer left-hand, and adjacent layer is opposite; The adjacent layer opposite direction is for the internal stress of offsetting twisting → make core Stability Analysis of Structures; Each layer twisting pitch → concerning core stability, flexibility, D.C. resistance and material consumption.Although the larger resistance of pitch is less than normal, material is economized a little, thus poor stability, flexibility poor → control by the operation card requirement.
Described power cable with cross-linked polyethylene insulation conductor wire core strand method processed, the strand method processed that adopts layering to press is twisted the system operation to conductor wire core after, also carry out following processing:
The PE ambroin of sneaking into crosslinking agent di-sec-octyl phthalate DCP at high temperature, high pressure N
2Effect is lower, and it is crosslinked polyethylene XLPE that the PE of linear structure is become cancellated PE, thereby improves the serviceability of cable;
Aforesaid operations specifically can be the construction of internal shield or outer shielding layer, interior screen: extrude semi-conductive screen plastics (conductor screen) at conductor; Outer screen: extrude semi-conductive screen plastics (insulation shielding) in the insulation appearance.
The power cable with cross-linked polyethylene insulation conduction twisted wire strand system that present embodiment prepares is even, and reliability is high, the outstanding features such as long service life.It has expected comparatively huge economic worth and social value.
Claims (2)
1. power cable with cross-linked polyethylene insulation conductor wire core strand method processed is characterized in that: the strand method processed that adopts layering to press, twist the alcohol that uses content 〉=96% purity in the course of processing processed to the mould cooling processing that instils; Use mould auxiliaryly to carry out doubling in the strand process processed, press operation;
Strand process processed also satisfies following requirement: not back twist is stranded, direction of lay: the outermost layer left-hand, adjacent layer is opposite.
2. according to the described power cable with cross-linked polyethylene insulation conductor wire core strand of claim 1 method processed, it is characterized in that: described power cable with cross-linked polyethylene insulation conductor wire core strand method processed, the strand method processed that adopts layering to press is twisted the system operation to conductor wire core after, also carry out following processing:
Under high temperature, high pressure N2 effect, it is crosslinked polyethylene XLPE that the PE of linear structure is become cancellated PE the PE ambroin of sneaking into crosslinking agent di-sec-octyl phthalate DCP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104576552A CN102969089A (en) | 2012-11-14 | 2012-11-14 | Stranding method of cross-linked polyethylene insulation power cable conducting wire core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104576552A CN102969089A (en) | 2012-11-14 | 2012-11-14 | Stranding method of cross-linked polyethylene insulation power cable conducting wire core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102969089A true CN102969089A (en) | 2013-03-13 |
Family
ID=47799174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104576552A Pending CN102969089A (en) | 2012-11-14 | 2012-11-14 | Stranding method of cross-linked polyethylene insulation power cable conducting wire core |
Country Status (1)
| Country | Link |
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| CN (1) | CN102969089A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117137A (en) * | 2013-03-18 | 2013-05-22 | 天津天缆集团有限公司 | Improved stranding process of cable copper conductors |
| CN103886951A (en) * | 2014-03-26 | 2014-06-25 | 中利科技集团股份有限公司 | Four-core inflaming retarding flexible cable for communication power supply |
| CN104143396A (en) * | 2014-07-10 | 2014-11-12 | 无锡市崇安区科技创业服务中心 | Method for stranding cross-linked polyethylene insulation power cable conducting wire core |
| CN104217818A (en) * | 2014-08-27 | 2014-12-17 | 安徽顺驰电缆有限公司 | Cable production process |
| CN105280313A (en) * | 2015-09-07 | 2016-01-27 | 白银有色集团股份有限公司 | Production method of large-size special-shaped aluminum conductive core cable |
-
2012
- 2012-11-14 CN CN2012104576552A patent/CN102969089A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 不详: "6-35kV中压电缆工艺质量讲稿", 《道客巴巴DOC88.COM》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117137A (en) * | 2013-03-18 | 2013-05-22 | 天津天缆集团有限公司 | Improved stranding process of cable copper conductors |
| CN103886951A (en) * | 2014-03-26 | 2014-06-25 | 中利科技集团股份有限公司 | Four-core inflaming retarding flexible cable for communication power supply |
| CN104143396A (en) * | 2014-07-10 | 2014-11-12 | 无锡市崇安区科技创业服务中心 | Method for stranding cross-linked polyethylene insulation power cable conducting wire core |
| CN104217818A (en) * | 2014-08-27 | 2014-12-17 | 安徽顺驰电缆有限公司 | Cable production process |
| CN105280313A (en) * | 2015-09-07 | 2016-01-27 | 白银有色集团股份有限公司 | Production method of large-size special-shaped aluminum conductive core cable |
| CN105280313B (en) * | 2015-09-07 | 2018-10-12 | 白银有色集团股份有限公司 | A kind of production method of big specification abnormity aluminium conductor wire core cable |
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Application publication date: 20130313 |