CN205451811U - Extra -high voltage friendship, direct current super -strength aluminium conductors (cable) steel -reinforced for electric wire netting - Google Patents
Extra -high voltage friendship, direct current super -strength aluminium conductors (cable) steel -reinforced for electric wire netting Download PDFInfo
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- CN205451811U CN205451811U CN201620245494.4U CN201620245494U CN205451811U CN 205451811 U CN205451811 U CN 205451811U CN 201620245494 U CN201620245494 U CN 201620245494U CN 205451811 U CN205451811 U CN 205451811U
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Abstract
The utility model relates to an extra -high voltage friendship, direct current super -strength aluminium conductors (cable) steel -reinforced for electric wire netting adopts four layers aluminum wire layer and the wire of galvanized steel strand layer for skeleton constitutions, applicable 800, 1000KV secret agent high tension transmission line application. The wire center is the hot galvanized steel strand of 2.8mm by 7 diameters and constitutes, and wire inlayer, wire neighbour inlayer, the wire neighbour is outer, the wire is outer respectively by 9, and 15, 21, 27 diameters are 4.21mm electrician's circle aluminum wire constitution, the total nominal cross -sectional area of aluminum wire be not less than 1000 mm2, the total nominal cross -sectional area of hot galvanized steel strand is not less than 43 mm2. This is novel to improve wire current density, reduce energy losses, improve electric wire netting transport efficiency, satisfy high electric capacity large capacity carries, and reinforcing wire life cycle's comprehensive economic benefits can satisfy the needs of national economy to electric power better.
Description
Technical field
This utility model relates to wires and cables industry bare wire field, is specifically related to a kind of extra-high voltage AC and DC electrical network super-strength steel-cored aluminium strand.
Background technology
Steel-cored aluminium strand is applied to various voltage gradation intensity voltage delivery guidewire, have to more high strength steel core aluminum stranded wire when in the face of the highest grade voltage transport condition.Extra-high voltage has been listed in one of country's preferential theme of medium & long term sci-tech development program outline, then heavy in section, and resistivity is low, and the steel-cored aluminium strand that pull resistance is strong certainly will be the direction of cable industry development.Highest voltage level 1000kV in China's power grid construction, current power transmission material is when carrying 1000kV transmission of electricity road, and conveying power is low, and resistance loss is big, and busy line corridor land resource is more.In a word, current steel-cored aluminium strand is not enough to tackle the transmission of electricity road of more than 1000kV.
Utility model content
For solving the problems referred to above, this novel offer one extra-high voltage AC and DC electrical network super-strength steel-cored aluminium strand, uses the wire that four layers of aluminum-wire layer and galvanized strand wires layer are formed by skeleton, be suitable for ± 800,1000kV UHV transmission line is applied.
For realizing object above, by the following technical solutions:
Extra-high voltage AC and DC electrical network super-strength steel-cored aluminium strand, it is made up of wire center, wire internal layer, wire neighbour's internal layer, wire neighbour's outer layer and wire external layer, wire center is made up of 7 a diameter of 2.8mm hot dip galvanizing steel strands, wire internal layer, wire neighbour's internal layer, wire neighbour's outer layer, wire external layer respectively by 9,15,21,27 a diameter of 4.21mm electricians circle aluminum steels composition；The total nominal section of described aluminum steel is not less than 1000mm2, the total nominal section of hot dip galvanizing steel strand is not less than 43mm2。
Described wire internal layer, wire neighbour's internal layer, wire neighbour's outer layer and four layers of aluminum-wire layer of wire external layer are disposably stranding into.
This utility model beneficial effect: improve current in wire density, reduction electric energy loss, raising electrical network transfer efficiency, meet the conveying of high capacitance Large Copacity, strengthen the overall economic efficiency of wire life cycle, can preferably meet the national economy needs to electric power.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
As shown in the figure: 1, wire center；2, wire internal layer；3, wire neighbour internal layer；4, wire neighbour outer layer；5, wire external layer.
Detailed description of the invention
Embodiment
Further illustrate below in conjunction with the accompanying drawings,
1) wire center (1) part is made up of 7 Ф 2.8mm hot dip galvanizing steel strands.
2) wire internal layer (2), wire neighbour's internal layer (3), wire neighbour's outer layer (4), wire external layer (5) are respectively by 9, and 15,21,27,72 Ф 4.21mm electrician circle aluminum steels form altogether.
3) aluminum steel nominal section reaches 1002.28mm2, galvanized strand wires nominal section reaches 43.10mm2Total sectional area is 1045.38mm2, be suitable for ± 800,1000kV UHV transmission line application.
4) Ф 2.8mm hot-galvanized steel linear system G3A type Extra High Strength steel wire, before its strand, after strand, minimum tensile strength is 1590MPa, during minimum 1% elongation, stress is 1410MPa, and the Ф 2.8mm steel wire of normal section steel core aluminum stranded wire is 1310MPa, 1140MPa, and prescribed strength deviation≤150MPa first.
5) Ф 4.21mm electrician circle aluminum steel system LY9 type hard-drawn aluminium wire, before ensureing strand, after strand, tensile strength is not less than 160MPa and 152MPa, and first prescribed strength deviation (after strand)≤20 DEG C of 25MPa, Ф 4.21mm aluminum single line time dc resistivity be defined as≤0.028034 Ω .mm2/ m, GENERAL TYPE wire is≤0.028264 Ω .mm2/ m, then the conductivity of wire is brought up to 61.5%IACS by 61%.
6) finished product strand system is that the 630/12+18+24+30 four-part form frame type stranding machine under regulation requires completes, and has accomplished that four layers of aluminum-wire layer are disposably stranding into, it is ensured that wire stranding closely " the most loose stock ", " not wire jumper ".When wire after being twisted into uses 1000kV transmission line of electricity, its natural transmission power is 5 times of 500kV transmission line of electricity, and resistance loss is about 1/4th of 500kV transmission line of electricity.Line corridor land resource about 2/3rds can be saved.
7) indicators of overall performance and GB IEC61089 standard comparing are as listed by table.
Claims (2)
1. an extra-high voltage AC and DC electrical network super-strength steel-cored aluminium strand, it is made up of wire center (1), wire internal layer (2), wire neighbour's internal layer (3), wire neighbour's outer layer (4) and wire external layer (5), it is characterized in that, wire center (1) is made up of 7 a diameter of 2.8mm hot dip galvanizing steel strands, wire internal layer (2), wire neighbour's internal layer (3), wire neighbour's outer layer (4), wire external layer (5) respectively by 9,15,21,27 a diameter of 4.21mm electricians circle aluminum steels composition；The total nominal section of described aluminum steel is not less than 1000mm2, the total nominal section of hot dip galvanizing steel strand is not less than 43mm2。
A kind of extra-high voltage AC and DC electrical network super-strength steel-cored aluminium strand the most according to claim 1, it is characterised in that wire internal layer (2), wire neighbour's internal layer (3), wire neighbour's outer layer (4) and (5) four layers of aluminum-wire layer of wire external layer are disposably stranding into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620245494.4U CN205451811U (en) | 2016-03-29 | 2016-03-29 | Extra -high voltage friendship, direct current super -strength aluminium conductors (cable) steel -reinforced for electric wire netting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620245494.4U CN205451811U (en) | 2016-03-29 | 2016-03-29 | Extra -high voltage friendship, direct current super -strength aluminium conductors (cable) steel -reinforced for electric wire netting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205451811U true CN205451811U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620245494.4U Expired - Fee Related CN205451811U (en) | 2016-03-29 | 2016-03-29 | Extra -high voltage friendship, direct current super -strength aluminium conductors (cable) steel -reinforced for electric wire netting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205451811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116959811A (en) * | 2023-07-13 | 2023-10-27 | 河北广杰线缆有限公司 | Extra-high voltage steel-cored aluminum stranded wire cable and production method |
-
2016
- 2016-03-29 CN CN201620245494.4U patent/CN205451811U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116959811A (en) * | 2023-07-13 | 2023-10-27 | 河北广杰线缆有限公司 | Extra-high voltage steel-cored aluminum stranded wire cable and production method |
| CN116959811B (en) * | 2023-07-13 | 2024-01-23 | 河北广杰线缆有限公司 | Extra-high voltage steel-cored aluminum stranded wire cable and production method |
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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: 20160810 Termination date: 20200329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |