CN202855415U - High conductivity high strength aluminum alloy conductor overhead insulation cable - Google Patents
High conductivity high strength aluminum alloy conductor overhead insulation cable Download PDFInfo
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- CN202855415U CN202855415U CN 201220194372 CN201220194372U CN202855415U CN 202855415 U CN202855415 U CN 202855415U CN 201220194372 CN201220194372 CN 201220194372 CN 201220194372 U CN201220194372 U CN 201220194372U CN 202855415 U CN202855415 U CN 202855415U
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- alloy conductor
- aluminium alloy
- high strength
- high conductivity
- aluminum alloy
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Abstract
The utility model discloses a high conductivity high strength aluminum alloy conductor overhead insulation cable, which comprises an aluminum alloy conductor, a semi-conduction internal shield and a weather-proof insulating layer arranged from inside to outside. The high conductivity high strength aluminum alloy conductor overhead insulation cable has the advantages of scientific and economic material selection, excellent product performance and strong practicality, and can replace the common aluminum core overhead insulation cables and steel-cored aluminum strand core overhead insulated cables and the like. The high conductivity high strength aluminum alloy conductor overhead insulation cable has the advantages of large transmission capacity, large draw-to-weight-ratio, large usage shift, good sag characteristic, less line loss, convenient construction and low engineering comprehensive cost.
Description
Technical field
The utility model relates to a kind of aerial insulated cable, particularly a kind of high conductivity high strength aluminium alloy conductor aerial insulated cable.
Background technology
The aerial insulated cable of at present extensive use in city net and rural power grids circuit adopts hard-drawn aluminium wire core conductor, steel-cored aluminum strand core or high-strength aluminum alloy core conductor usually, and it is outer to extrude semiconductive inner shield (6KV and more than) and weather insulating material.Although its extensive application exposes many outstanding problems in actual use: tensile strength is low, transmission capacity is little, line loss is large, span is little when setting up, and the operation troubles rate is high.For example wherein the conductance of duralumin single line only is 61%IACS, and the conductance of aluminium alloy single line is up to 52.5～53%, and the tensile strength of duralumin single line only is 159～180N/mm
2, setting up span only is 50～60m, although the tensile strength of high-strength aluminium-magnesium silicon-aluminum single line can reach 325N/mm
2, but its conductance is too low, and use is restricted.
Chinese patent ZL95250017.5 discloses " a kind of overhead cable ", and it adopts steel reinforced aluminium conductor conductor wire core, screen and insulating barrier.Although conductor wire core adopts sub-thread or steel wire strand to increase tensile strength, tensile strength is still not high, and line span only rises to 60～80m.Simultaneously, owing to adopted steel wire in the conductor wire core, produce magnetic hysteresis loss and eddy current loss, lower than the ampacity of common aerial insulated cable, line loss is larger.Owing to increased steel wire, cause that wire weight significantly increases in addition, steel tower needs larger bearing capacity, and the height of steel tower has to improve simultaneously, needs larger steel tower ground floor space and burial depth, causes the multiplication of quantities and project cost.
The utility model content
The purpose of this utility model is defective and the deficiency that overcomes aforementioned existing aerial insulated cable, provides that a kind of high strength, high conductivity, transmission capacity are large, the high conductivity high strength aluminium alloy conductor aerial insulated cable of long service life.
Realize that the purpose of this utility model technical scheme is a kind of high conductivity high strength aluminium alloy conductor aerial insulated cable, comprise coating successively from the inside to the outside aluminium alloy conductor, semiconductive inner shield and the weather insulating barrier that arranges.
Described aluminium alloy conductor adopts the aluminium alloy single line concentric stranding of conductance 〉=59.5%IACS, tensile strength 〉=240MPa to form.
Described high conductivity high strength aluminium alloy conductor is by circular or trapezoidal or S shape is Z-shaped or fan-shaped or the aluminium alloy single line concentric stranding of chevron shape forms, and perhaps the combination concentric stranding by the aluminium alloy single line of aforementioned shapes forms.
After having adopted the aforementioned techniques scheme, the utlity model has following beneficial effect: all adopt the aluminium alloy single line concentric stranding of conduction usefulness to form on the high conductivity high strength aluminium alloy conductor aerial insulated cable conductor structure, aluminium alloy wire is born conduction and strengthening core effect simultaneously, there is not the steel core single-candidate to strengthen element outward, there are not magnetic hysteresis loss and eddy current loss, not because electrochemical corrosion and extension lead useful life greatly between the different materials yet.Its major advantage is as follows: the first, and production technology is easy, cost is low, production efficiency is high; The second, to compare with steel-cored aluminum strand core overhead insulated cable with isodiametric aluminium core overhead insulated cable, sag characteristic is good, and the comparable steel reinforced aluminium conductor of average tower height reduces about 3 meters, can effectively reduce the line construction investment; The 3rd, so that this aerial insulated cable has good anti-overload ability and fatigue resistance; The 4th, the load aspect is compared with the steel-cored aluminum strand core overhead insulated cable of same diameter, horizontal loading, vertically quite powerful, and vertical load can reduce 10%; The 5th, easy construction, this cable conductor is twisted into by same material, so that splicing fitting is simple, only need 1 splicing sleeve, its yield strength is about 1.5 times of aluminum steel, compression-type continued be difficult for to produce wire bulge or lantern phenomenon, can reduce the crimping workload to anti-strong wire jumper, raises the efficiency; The 6th, this insulated cable conductor steel core free, there are not eddy current and magnetic hysteresis loss, alternating current-direct current resistance is smaller, ampacity than the steel-cored aluminum strand core insulated cable of same diameter is large, particularly during large capacity transmission, consumption reduction obviously, can satisfy the engineering instructions for use, reach the purpose of energy-conservation, consumption reduction, environmental protection, have obvious economic benefit and social benefit, the demand electrical network of " amphitypy three is new " power grid construction of building " resource-conserving, environmentally friendly " and " new technology, new material, new technology " is of great importance.Therefore high conductivity high strength aluminium alloy conductor aerial insulated cable of the present utility model is simple in structure, selection science, economy, function admirable, transmission capacity is large, draw anharmonic ratio large, use span large (120-300m), sag characteristic is good, line loss is little, easy construction, engineering comprehensive cost are low, can be used for the aluminium core overhead insulated cable, steel-cored aluminum strand core overhead insulated cable and the high-strength aluminum alloy core overhead insulated cable that replace the current power transmission industry to use.
Description of drawings
Content of the present invention is easier to be expressly understood in order to make, and the below is according to specific embodiment and by reference to the accompanying drawings, and the present invention is further detailed explanation, wherein
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is another kind of structural representation of the present invention.
Attached number in the figure is:
Embodiment
(embodiment 1)
See Fig. 1, a kind of high conductivity high strength aluminium alloy conductor aerial insulated cable of present embodiment comprises aluminium alloy conductor 1, semiconductive inner shield 2, the weather insulating barrier 3 of high conductivity high strength from the inside to the outside.Aluminium alloy conductor 1 is twisted into aluminium alloy conductor 1 together by many circles, aluminium alloy wire Z-shaped, S shape, its outer semiconductive shielding layer 2 and weather insulating barrier 3 of extruding.
Semiconductive inner shield 2 can be semiconductive thermoplasticity or thermosetting polyvinyl material.
(embodiment 2)
See Fig. 2, present embodiment is substantially the same manner as Example 1, and difference is: high conductivity high strength aluminium alloy conductor 1 is by circle single line and stranded the forming of the trapezoidal aluminium alloy wire of Duo Gen in the present embodiment.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. a high conductivity high strength aluminium alloy conductor aerial insulated cable is characterized in that: comprise coating successively from the inside to the outside aluminium alloy conductor (1), semiconductive inner shield (2) and the weather insulating barrier (3) that arranges.
2. a kind of high conductivity high strength aluminium alloy conductor aerial insulated cable according to claim 1 is characterized in that described aluminium alloy conductor (1) adopts the aluminium alloy single line concentric stranding of conductance 〉=59.5%IACS, tensile strength 〉=240MPa to form.
3. a kind of high conductivity high strength aluminium alloy conductor aerial insulated cable according to claim 2, it is characterized in that described high conductivity high strength aluminium alloy conductor (1) by circular or trapezoidal or S shape is Z-shaped or fan-shaped or the aluminium alloy single line concentric stranding of chevron shape forms, perhaps the combination concentric stranding by the aluminium alloy single line of aforementioned shapes forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194372 CN202855415U (en) | 2012-05-02 | 2012-05-02 | High conductivity high strength aluminum alloy conductor overhead insulation cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220194372 CN202855415U (en) | 2012-05-02 | 2012-05-02 | High conductivity high strength aluminum alloy conductor overhead insulation cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202855415U true CN202855415U (en) | 2013-04-03 |
Family
ID=47986586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220194372 Expired - Fee Related CN202855415U (en) | 2012-05-02 | 2012-05-02 | High conductivity high strength aluminum alloy conductor overhead insulation cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202855415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795139A (en) * | 2015-01-12 | 2015-07-22 | 江苏亨通线缆科技有限公司 | High-reliability flexible cable for communication power supply |
| CN110797136A (en) * | 2019-11-20 | 2020-02-14 | 江苏亨通高压海缆有限公司 | Z-shaped sealed cable conductor of high-voltage direct-current submarine cable and design method thereof |
-
2012
- 2012-05-02 CN CN 201220194372 patent/CN202855415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795139A (en) * | 2015-01-12 | 2015-07-22 | 江苏亨通线缆科技有限公司 | High-reliability flexible cable for communication power supply |
| CN110797136A (en) * | 2019-11-20 | 2020-02-14 | 江苏亨通高压海缆有限公司 | Z-shaped sealed cable conductor of high-voltage direct-current submarine cable and design method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20210502 |