CN204680459U - High performance water proof type aluminium alloy frame hollow wire - Google Patents
High performance water proof type aluminium alloy frame hollow wire Download PDFInfo
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- CN204680459U CN204680459U CN201520405590.6U CN201520405590U CN204680459U CN 204680459 U CN204680459 U CN 204680459U CN 201520405590 U CN201520405590 U CN 201520405590U CN 204680459 U CN204680459 U CN 204680459U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a kind of high performance water proof type aluminium alloy frame hollow wire, comprise cable core and be coated on the insulating barrier on cable core, described cable core is made up of steel heart yearn and aluminium alloy conductor, and aluminium alloy conductor is stranded on steel heart yearn; Cable core is coated with waterproof coating, between waterproof coating and insulating barrier, is provided with internal shield, in the conductor gap of cable core, be filled with the filler that blocks water.Described aluminium alloy conductor adopts two-layer lay configuration, and the aluminium alloy monofilament of aluminium alloy conductor is profiled-cross-section.This aerial condutor is not weighed has good mechanical performance and wire performance, and effectively can avoid the intrusion of humidity, moisture content, solves power cable and easily occurs water tree problem.
Description
Technical field
The utility model belongs to conveying electro-technical field, particularly relates to aerial high-voltage aluminium alloy power cable.
Background technology
Along with the fast development of national economy, the consumption of power cable and the scope of application are more and more wider, and wherein overhead power cable is in order to transmission and the critical cables product distributing high-power power in electric power system basic routing line.Power cable is often set up in various adverse circumstances, as in moist, rainy snow region, in the case power cable be subject to for a long time moisture, moist erosion and sleet cover pressure.
Power cable basic structure mainly comprises metal core, insulating barrier and external protection, and metal core, for transmitting electric energy, is the pith of cable; Insulating barrier is for realizing the insulation to core, and external protection then plays the protective effect of cable.In order to save valuable copper material, aerial cable starts large area and uses aluminium alloy as metal core, because aerial cable there will be vertical curved under the effect of self gravitation, cable is made to bear very high length to pulling force, especially when cable covering sleet, this pulling force can become very large, is easy to cause the damage to aluminium alloy cable, even occurs breaking accident.Simultaneously for the construction of cable be in for a long time in wet environment, also easily the occurrence of wetness air, steam etc. invade between the metallic conductor of cable conductor, accelerate oxidation and the corrosion of metallic conductor, can form oxide layer between cable core single line, directly affect the transmission performance of cable.Therefore existing aluminium alloy cable not only can cause the bad phenomenon such as cable sag, distortion, fracture due to the pressure of covering of raindrop, ice and snow, and easily occurs the intrusion of moisture content, finally causes power circuit normally to work.
Utility model content
For the above-mentioned deficiency existing for prior art, technical problem to be solved in the utility model is to provide a kind ofly to be had compared with high-tensile and the high performance water proof type aluminium alloy frame hollow wire that rainwater can be avoided to invade.
In order to solve the problems of the technologies described above, high performance water proof type aluminium alloy frame hollow wire of the present utility model, comprise cable core and be coated on the insulating barrier on cable core, described cable core is made up of steel heart yearn and aluminium alloy conductor, and aluminium alloy conductor is stranded on steel heart yearn; Cable core is coated with waterproof coating, between waterproof coating and insulating barrier, is provided with internal shield, in the conductor gap of cable core, be filled with the filler that blocks water.
After adopting said structure, because cable core comprises the steel heart yearn and stranded aluminium alloy conductor on steel heart yearn being positioned at core, make the mechanical strengths such as the existing higher stretch-proof of aerial condutor, shock resistance and flexibility, there is again good conductivity; And there is lighter cable weight, thus make cable can bear larger built on stilts span and sag, be more suitable for Great span, long range propagation electric energy, line security coefficient is high.Again owing to being coated with waterproof coating on the aluminium alloy conductor of cable core, this structure effectively stops steam, sleet penetrates in cable core, greatly improves the safety and reliability of cable transmission electric energy.Also owing to being filled with the filler that blocks water between the conductor of cable core, this not only strengthens conjugation and the globality of cable core conductor, more effectively stops and stops intrusion that is moist and moisture content, making cable can keep good electrical property for a long time.The internal shield of this aerial condutor decreases cable core current field to external radiation, and avoid current field on the impact of cable surrounding environment, screen also has certain heat-blocking action, can reduce wire and run heat to the burn-in effects of insulating barrier.
Preferred implementation of the present utility model, the steel individual filament cross section of described steel heart yearn is hexagonal structure.Described steel heart yearn includes core single steel monofilament and stranded six roots of sensation steel monofilament on this single steel monofilament.This structure makes cable have higher tensile strength and cable is flexible.Profiled-cross-section structure can reduce the gap of conductor, compact conformation, improves ampacity and the electric conductivity of wire.
Preferred implementation of the present utility model, described aluminium alloy conductor adopts two-layer lay configuration, and the aluminium alloy monofilament of aluminium alloy conductor is profiled-cross-section.It is light that aluminium alloy conductor has quality, and the electric conductivity of unit mass is excellent.And the ampacity of compact conformation, conductor wire is large, conducts electricity very well.
Further execution mode of the present utility model, the thickness of described waterproof coating is 10um-30um.Described internal shield extrudes on waterproof coating, and the thickness of internal shield is 0.08mm-0.15mm.The thickness of described internal shield is 0.1mm.Described insulating barrier is hydrophobicity fluoroplastic layer, and thickness of insulating layer is 2.0mm-4.0mm.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model high performance water proof type aluminium alloy frame hollow wire is described further.
Fig. 1 is the cross section structure schematic diagram of a kind of embodiment of the utility model high performance water proof type aluminium alloy frame hollow wire.
In figure, 1-steel heart yearn, 2-aluminium alloy conductor, 3-waterproof coating, 4-internal shield, the 5-filler that blocks water, 6-insulating barrier.
Embodiment
In the high performance water proof type aluminium alloy frame hollow wire shown in Fig. 1, the cable core of aerial condutor is made up of steel heart yearn 1 and aluminium alloy conductor 2, aluminium alloy conductor 2 is stranded in steel heart yearn 1, steel heart yearn 1 forms by seven steel monofilament are stranded, stranded on the steel monofilament being positioned at core have six roots of sensation steel monofilament, and the cross section of each steel silk is all in regular hexagon structure.Aluminium alloy conductor 2 adopts two-layer lay configuration, and two-layer stranded aluminium alloy monofilament all adopts special-shaped cross-section structure, and the tensile strength of aluminium alloy conductor 2 is greater than 300MPa, and the utility model is 300 MPa, and the conductance of aluminium alloy conductor 2 is 60%IACS.
Aluminium alloy conductor 2 is coated with waterproof coating 3, and the thickness of waterproof coating 3 is 20um (micron), and preferably the thickness of its waterproof coating 3 is 10 um (micron)-30 um (micron).Waterproof coating 3 adopts water-repellent paint to spray, brush or the method for dip-coating is made.Waterproof coating 3 is extruded with internal shield 4, and internal shield 4 adopts aluminium strip to extrude and forms, and the thickness of internal shield 4 is 0.1mm, and preferred thickness is 0.08mm-0.15mm.Internal shield 4 is coated with insulating barrier 6, and insulating barrier is that hydrophobicity fluoroplastics are made, and its thickness is 3.0mm, and according to service condition and the applied environment of aerial condutor, its thickness should be selected between 2.0mm-4.0mm.
Manufacture method of the present utility model, comprise the following steps:
1,7 steel monofilament are adopted to be twisted into steel heart yearn 1, using the reinforcement as aerial condutor, adopt the mode of pressing time stranded and insert the filler 5 that blocks water simultaneously, this filler 5 that blocks water for material, makes steam cannot enter in core with water blocking yarn or the glue that blocks water etc.;
2, the special-shaped aluminium alloy wire that with the addition of the alloying elements such as zirconium, copper, iron is adopted to carry out successively stranded around steel heart yearn 1, to form aluminium alloy conductor 2 at steel heart yearn 1, the aluminium alloy recrystallization temperature of aluminium alloy conductor 2 reaches 350 DEG C, and tensile strength reaches more than 300MPa, and conductance reaches 60%IACS.During stranded fan-shaped aluminium alloy wire, adopt and successively press stranded mode, make the gap between the fan-shaped aluminium alloy wire of every root minimum, reduce conductor wire line loss, insert the packing material that blocks water when stranded fan-shaped aluminium alloy wire simultaneously, prevent steam from entering in conductor wire, ensure that the ampacity of conductor wire;
3, at aluminium alloy conductor 2 outer coating waterproof coating 3, waterproof coating 3 not only can effectively stop entering of extraneous steam, water, the chip that conductor wire outer surface is unnecessary can also be removed, make conductive surface brighter and cleaner, owing to employing waterproof coating, so conductor wire can not be subject to the intrusion of any moisture, thus ensure that the useful life of overhead wire; Owing to employing block water packing material and waterproof coating, the utility model overhead wire not only can be maked somebody a mere figurehead and is laid in long-term rainy wet area, underground can also be embedded in, which not only improves the coefficient of safety of laying and using, can also the expense of laying be reduced in specific region, save installation and maintenance cost;
4, outside waterproof coating 3, extruding thickness is 0.1mm internal shield 4, and internal shield 4 answers thickness even, and thickness deviation should not exceed ± 1%, and internal shield 4 can homogenizing electric field, and the burr making accidentally to be formed, salient point are shielded from screen, prevent electric field to concentrate.Extrude internal shield, drain insulating layer, waterproof coating can be made, internal shield three closely combines, decrease air gap, decrease the possibility of bubble-discharge.Internal shield also has certain heat-blocking action, prevents the heat produced due to loss when overhead wire runs from making insulation accelerated aging;
5, outside internal shield 4, hydrophobic type insulating barrier 6 is evenly extruded, insulating barrier 6 thickness is 3.0mm, drain insulating layer can effectively prevent super-cooling waterdrop and ice and snow freeze above formed ice stick together, there is excellent anti-ice-snow covering power, be applicable to the coastal south, high and cold rainy humid area, especially low temperature, sleet, solidifying snow etc. re-cover ice environment and descend to use safely, can extend the useful life of overhead wire.
Above the specific embodiment of the utility model patent is illustrated and illustrated; but the utility model patent is not limited only to above example; as cord reinforcements is not limited to steel core; steel core quantity is not limited to 7; the alloying element of conductor wire is not limited to the high strength heat resistant alloy line of zirconium, copper, iron; all equivalent transformations done according to the utility model patent, all should within the utility model scope of patent protection.
Claims (10)
1. a high performance water proof type aluminium alloy frame hollow wire, comprise cable core and be coated on the insulating barrier (6) on cable core, it is characterized in that: described cable core is made up of steel heart yearn (1) and aluminium alloy conductor (2), aluminium alloy conductor (2) is stranded on steel heart yearn (1); Cable core is coated with waterproof coating (3), between waterproof coating (3) and insulating barrier (6), is provided with internal shield (4), in the conductor gap of cable core, be filled with the filler that blocks water (5).
2. high performance water proof type aluminium alloy frame hollow wire according to claim 1, is characterized in that: the steel individual filament cross section of described steel heart yearn (1) is hexagonal structure.
3. according to the high performance water proof type aluminium alloy frame hollow wire of claim 1 or 2, it is characterized in that: described steel heart yearn (1) includes core single steel monofilament and stranded six roots of sensation steel monofilament on this single steel monofilament.
4. high performance water proof type aluminium alloy frame hollow wire according to claim 1, is characterized in that: described aluminium alloy conductor (2) adopts two-layer lay configuration, and the aluminium alloy monofilament of aluminium alloy conductor (2) is profiled-cross-section.
5. according to the high performance water proof type aluminium alloy frame hollow wire of claim 1 or 4, it is characterized in that: the tensile strength of described aluminium alloy conductor (2) is 300MPa, the conductance of aluminium alloy conductor (2) is 60%IACS.
6. high performance water proof type aluminium alloy frame hollow wire according to claim 1, is characterized in that: the thickness of described waterproof coating (3) is 10um-30um.
7. high performance water proof type aluminium alloy frame hollow wire according to claim 1, it is characterized in that: described internal shield (4) extrudes on waterproof coating (3), the thickness of internal shield (4) is 0.08mm-0.15mm.
8. high performance water proof type aluminium alloy frame hollow wire according to claim 7, is characterized in that: the thickness of described internal shield (4) is 0.1mm.
9. high performance water proof type aluminium alloy frame hollow wire according to claim 1, is characterized in that: described insulating barrier (6) is hydrophobicity fluoroplastic layer, and insulating barrier (6) thickness is 2.0mm-4.0mm.
10. the high performance water proof type aluminium alloy frame hollow wire according to claim, is characterized in that: described insulating barrier (6) thickness is 3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520405590.6U CN204680459U (en) | 2015-06-14 | 2015-06-14 | High performance water proof type aluminium alloy frame hollow wire |
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| CN201520405590.6U CN204680459U (en) | 2015-06-14 | 2015-06-14 | High performance water proof type aluminium alloy frame hollow wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469864A (en) * | 2016-01-14 | 2016-04-06 | 东莞市蓝姆材料科技有限公司 | Polygonal conductor core wire and high-speed data transmission cable adopting same |
| CN112951488A (en) * | 2021-01-28 | 2021-06-11 | 吉安丽姝科技有限公司 | Aluminum alloy cable, manufacturing equipment and manufacturing method thereof |
| CN113192682A (en) * | 2021-04-26 | 2021-07-30 | 湖北力生电缆有限公司 | Energy-saving and consumption-reducing cable conductor and production method thereof |
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2015
- 2015-06-14 CN CN201520405590.6U patent/CN204680459U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469864A (en) * | 2016-01-14 | 2016-04-06 | 东莞市蓝姆材料科技有限公司 | Polygonal conductor core wire and high-speed data transmission cable adopting same |
| CN112951488A (en) * | 2021-01-28 | 2021-06-11 | 吉安丽姝科技有限公司 | Aluminum alloy cable, manufacturing equipment and manufacturing method thereof |
| CN112951488B (en) * | 2021-01-28 | 2022-09-20 | 深圳市汇昇科技发展有限公司 | Aluminum alloy cable manufacturing equipment and manufacturing method thereof |
| CN113192682A (en) * | 2021-04-26 | 2021-07-30 | 湖北力生电缆有限公司 | Energy-saving and consumption-reducing cable conductor and production method thereof |
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