CN207541966U - A kind of overhead power transmission twisted wire - Google Patents
A kind of overhead power transmission twisted wire Download PDFInfo
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- CN207541966U CN207541966U CN201721537317.4U CN201721537317U CN207541966U CN 207541966 U CN207541966 U CN 207541966U CN 201721537317 U CN201721537317 U CN 201721537317U CN 207541966 U CN207541966 U CN 207541966U
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Abstract
A kind of overhead power transmission twisted wire sets aluminium Baogang's twisted layer and multilayer aluminium alloy twisted layer to form by being twisted successively outside a Gen Lv Baogangs single line；Aluminium Baogang twisted layer is one or more layers；The aluminium alloy twisted layer is made of more aluminium alloy single lines, and aluminium Baogang twisted layer is made of Duo Gen aluminium Baogang single line；Aluminium Baogang single line is combined by aluminium layer cladding steel core；The aluminium alloy single line uses heat-resistant aluminum alloy wire.It is designed on the basis of conventional overhead twisted wire by improved structure, improve the mechanical performance of product under the high temperature conditions, enhance the thermal stability of product in the high temperature environment, to adapt to the erection requirement of aerial bare stranded wire large span, hot environment, ensure transmission line construction quality, operation and maintenance cost is reduced, and improves the electrical property of naked twisted wire.
Description
Technical field
The utility model belongs to field of cables more particularly to a kind of overhead power transmission cable.
Background technology
Outdoor remote, meagrely-populated regional large span power transmission is frequently with aerial bare stranded wire, because of aerial bare stranded wire frame
If conveniently, engineering cost is cheap, economical and practical.
Wire body is hung in itself on the fixation means such as electric pole, steel tower when aerial bare stranded wire is set up, and cost is set up to save,
The fixation means span such as electric pole, steel tower is all bigger, during naked twisted wire lateral suspension state due to its own gravity generate it is very big
Longitudinal pulling force, naked twisted wire need very high-tensile and avoid being broken, and the exposure throughout the year of naked twisted wire is in the sunlight, bad environments,
Thermal stability, corrosion resistance requirement to naked twisted wire mechanical performance is very high.Therefore it is badly in need of a kind of novel overhead power transmission to twist
Line.
Utility model content
To solve the above-mentioned problems, the utility model is carried out using following scheme：
A kind of overhead power transmission twisted wire, by being twisted setting aluminium Baogang's twisted layer and more outside a Gen Lv Baogangs single line successively
Layer aluminium alloy twisted layer forms；Aluminium Baogang twisted layer is one or more layers；The aluminium alloy twisted layer is by more aluminium alloy single line groups
Into aluminium Baogang twisted layer is made of Duo Gen aluminium Baogang single line；Aluminium Baogang single line is combined by aluminium layer cladding steel core；Institute
Aluminium alloy single line is stated using heat-resistant aluminum alloy wire, the aluminium alloy single line direction of lay of adjacent aluminium alloy twisted layer is opposite.
Preferably, aluminium Baogang line diameter ranging from 2.97mm-3.07mm, the aluminium alloy single linear diameter is ranging from
4.48mm-4.58mm。
Preferably, when aluminium Baogang twisted layer is one layer, the aluminium Baogang single line of aluminium Baogang twisted layer is closed with the adjacent aluminium
Golden single line direction of lay is opposite.
Preferably, when aluminium Baogang twisted layer is multilayer, the aluminium Baogang single line of aluminium Baogang twisted layer and the adjacent aluminium alloy single
Line direction of lay is opposite；The aluminium Baogang single line direction of lay of adjacent aluminium Baogang twisted layer is opposite.
Preferably, aluminium Baogang twisted layer lay ratio ranging from 16-26；The outermost layer lay ratio model of the multilayer aluminium alloy twisted layer
It encloses for 10-14, innermost layer lay ratio ranging from 10-16.
Preferably, when aluminium Baogang twisted layer is one layer, the aluminium alloy twisted layer is three layers.
Preferably, aluminium Baogang line diameter is 3.02mm, and the aluminium alloy single linear diameter is 4.53mm.
Preferably, stress when aluminium Baogang single line tensile strength is extended not less than 1340MPa, 1% is not less than 1200MPa,
Percentage of total elongation is broken not less than 1%, 20 DEG C of resistivity is not more than 84.80n Ω m.
Preferably, aluminium alloy single line tensile strength is not less than 159MPa, and elongation is not less than 2%, D.C. resistance at 20 DEG C
Rate is not more than 0.029 Ω mm2/m。
Preferably, aluminium alloy single line continue under 230 ± 3 DEG C of environment temperatures 1 hour or 180 ± 6 DEG C of environment temperatures under hold
Continuous 400 hours mechanical intensity are not less than the 90% of initial value.
The beneficial effects of the utility model are：The utility model is set on the basis of conventional overhead twisted wire by improved structure
Meter improves the mechanical performance of product under the high temperature conditions, the thermal stability of product in the high temperature environment is enhanced, to adapt to make somebody a mere figurehead
The erection requirement of naked twisted wire large span, hot environment, ensures transmission line construction quality, reduces operation and maintenance cost, and improve
The electrical property of naked twisted wire.
Description of the drawings
Fig. 1 is the sectional view of the utility model.
In figure：1 aluminium Baogang twisted layer, 2 aluminium alloy twisted layers, 11 aluminium Baogang single lines, 22 aluminium alloy single lines.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of overhead power transmission is provided centrally with a Gen Lv Baogangs single line 11 with twisted wire, in this root cable
Outer strand sets Duo Gen aluminium Baogang single line 11 and forms a Ceng Lv Baogangs twisted layer 1, and outer layer can also set multilayer aluminum Baogang single line 11 in strand
Multilayer aluminum Baogang twisted layer 1 is formed, is twisted outside aluminium Baogang twisted layer 1 and sets a circle aluminium alloy single line 22 one layer of aluminium alloy twisted layer 2 of formation, it should
22 direction of lay of aluminium alloy single line and aluminium Baogang 11 direction of lays of single line adjacent thereto of layer are opposite.Then it is successively twisting successively
It closes aluminium alloy single line 22 and forms multilayer aluminium alloy twisted layer 2,22 direction of lay of aluminium alloy single line of adjacent aluminium alloy twisted layer 2 also phase
Instead.Direction of lay is arranged on the contrary, overhead power transmission twisted wire can be avoided whole be not in bending, kinking
The problem of jumping stock, fried stock.
Aluminium alloy single line 22 is the main carriers of electric energy transmission.Aluminium alloy single line 22 uses heat-resistant aluminum alloy wire.
Stress when 11 its tensile strength of aluminium Baogang single line is extended not less than 1340MPa, 1% is not less than 1200MPa, fracture
When total elongation not less than 1%, be amenable to the torsion of no less than 20 times and not broken；Resistivity at 20 DEG C is not more than
84.80nΩ·m。
Its tensile strength of heat-resisting aluminium alloy silk is not less than 2% not less than 159MPa, elongation, heat resistance heating temperature 230
Continue 1 hour at ± 3 DEG C, continue 90% of initial value when intensity was not less than room temperature in 400 hours, 20 at 180 ± 6 DEG C of heating temperature
DEG C when dc resistivity be not more than 0.028735 Ω mm2/m。
11 diameter range of aluminium Baogang single line is 3.02 ± 0.05mm, 22 diameter range of aluminium alloy single line for 4.53 ±
0.05mm.Optimal a diameter of aluminium Baogang single line 11 uses 3.02mm, and aluminium alloy single line 22 uses 4.53mm.Aluminium Baogang single line 11
Diameter cannot exceed prescribed limit, too small, then cannot meet the endwise tensile strength requirement of product, excessive, then influence product
Overall structure increases production cost.22 diameter of aluminium alloy single line cannot exceed prescribed limit, too small, then cannot meet product
Power transmission demand, it is excessive, then the overall structure of product is influenced, increases production cost, causes unnecessary waste.
A kind of structure of the utility model is：It is twisted outside one Gen Lv Baogangs single line 11 and sets 6 Gen Lv Baogangs single lines 11, in its outer layer
It twists and sets 9 and its aluminium alloy single line 22 that twist set direction opposite, 15 and 22 and the adjacent inner layer cable strand side of setting are set twisting successively
To opposite aluminium alloy single line 22.1 lay ratio ranging from 16-26 of aluminium Baogang twisted layer；The outermost layer pitch diameter of multilayer aluminium alloy twisted layer 2
Than ranging from 10-14, innermost layer lay ratio ranging from 10-16.Ensure that lay configuration is close, not loosely, ensure that overall structure is steady
It is fixed.
It these are only the preferred embodiment of the utility model, but the design concept of the present invention is not limited thereto, it is all
The insubstantial modifications made using this design to the utility model, are also each fallen within the scope of protection of the utility model.
Claims (10)
1. a kind of overhead power transmission twisted wire, it is characterised in that：It is by a Gen Lv Baogangs single line（11）It is twisted setting successively outside
Aluminium Baogang twisted layer（1）With multilayer aluminium alloy twisted layer（2）It forms；Aluminium Baogang twisted layer（1）For one or more layers；The aluminium alloy
Twisted layer（2）By more aluminium alloy single lines（22）Composition, aluminium Baogang twisted layer（1）By Duo Gen aluminium Baogang single line（11）Composition；Institute
Shu Lv Baogangs single line（11）It is combined by aluminium layer cladding steel core；The aluminium alloy single line（22）Using heat-resistant aluminum alloy wire；
Aluminium alloy twisted layer（2）The aluminium alloy single line of adjacent two layers（22）Direction of lay is opposite.
2. a kind of overhead power transmission twisted wire according to claim 1, it is characterised in that：Aluminium Baogang single line（11）Directly
Diameter ranging from 2.97mm-3.07mm, the aluminium alloy single line（22）Diameter range is 4.48mm-4.58mm.
3. a kind of overhead power transmission twisted wire according to claim 1, it is characterised in that：Aluminium Baogang twisted layer（1）For
At one layer, aluminium Baogang twisted layer（1）Aluminium Baogang single line（11）With the adjacent aluminium alloy single line（22）Direction of lay phase
Instead.
4. a kind of overhead power transmission twisted wire according to claim 1, it is characterised in that：Aluminium Baogang twisted layer（1）For
During multilayer, aluminium Baogang twisted layer（1）Aluminium Baogang single line（11）With the adjacent aluminium alloy single line（22）Direction of lay phase
Instead；Adjacent aluminium Baogang twisted layer（1）Aluminium Baogang single line（11）Direction of lay is opposite.
5. according to a kind of any overhead power transmission twisted wires of claim 1-4, it is characterised in that：Aluminium Baogang twisted layer
（1）Lay ratio ranging from 16-26；The multilayer aluminium alloy twisted layer（2）Outermost layer lay ratio ranging from 10-14, innermost layer section
Diameter is than ranging from 10-16.
6. a kind of overhead power transmission twisted wire according to claim 3, it is characterised in that：The aluminium alloy twisted layer（2）Layer
Number is three.
7. a kind of overhead power transmission twisted wire according to claim 1, it is characterised in that：Aluminium Baogang single line（11）Directly
Diameter is 3.02mm, the aluminium alloy single line（22）A diameter of 4.53mm.
8. a kind of overhead power transmission twisted wire according to claim 1, it is characterised in that：Aluminium Baogang single line（11）It is anti-
Stress when tensile strength is extended not less than 1340MPa, 1% is not less than 1200MPa, and fracture percentage of total elongation is not less than 1%, 20 DEG C of electricity
Resistance rate is not more than 84.80n Ω m.
9. a kind of overhead power transmission twisted wire according to claim 1, it is characterised in that：The aluminium alloy single line（22）It is anti-
Tensile strength is not less than 159MPa, and elongation is not less than 2%, and dc resistivity is not more than 0.029 Ω mm at 20 DEG C2/m。
10. a kind of overhead power transmission twisted wire according to claim 9, it is characterised in that：The aluminium alloy single line（22）
Continue under 230 ± 3 DEG C of environment temperatures 1 hour or 180 ± 6 DEG C of environment temperatures under continue 400 hours mechanical intensity not less than just
The 90% of initial value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721537317.4U CN207541966U (en) | 2017-11-17 | 2017-11-17 | A kind of overhead power transmission twisted wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721537317.4U CN207541966U (en) | 2017-11-17 | 2017-11-17 | A kind of overhead power transmission twisted wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207541966U true CN207541966U (en) | 2018-06-26 |
Family
ID=62614034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721537317.4U Active CN207541966U (en) | 2017-11-17 | 2017-11-17 | A kind of overhead power transmission twisted wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207541966U (en) |
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2017
- 2017-11-17 CN CN201721537317.4U patent/CN207541966U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.19, Yongfeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Patentee after: Guangzhou Nanyang cable group Co.,Ltd. Address before: No.19, Yongfeng Road, Yonghe Economic Zone, Guangzhou Economic and Technological Development Zone, Guangdong 510000 Patentee before: GUANGZHOU NANYANG CABLE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |