CN203376997U - Aluminum alloy cable - Google Patents
Aluminum alloy cable Download PDFInfo
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- CN203376997U CN203376997U CN201320415141.0U CN201320415141U CN203376997U CN 203376997 U CN203376997 U CN 203376997U CN 201320415141 U CN201320415141 U CN 201320415141U CN 203376997 U CN203376997 U CN 203376997U
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- cable
- aluminium alloy
- inner core
- retardant
- flame
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Abstract
The utility model discloses an aluminum alloy cable comprising a cable inner core and a cable outer layer which is wrapped outside the cable inner core. The cable inner core comprises four wire cores which are mutually twisted. Each of the wire cores comprises an aluminum alloy conductor and a flame retardant insulating layer which is wrapped outside the aluminum alloy conductor. The cable outer layer comprises a glass fiber belt, a flame retardant lining layer, a self-locking type chain steel belt, and a low smoke halogen-free flame retardant sheath from the inside to the outside. A high-flame-retardant filler is arranged between the cable inner core and the cable outer layer. The aluminum alloy cable has the advantages of low cost, good bending performance, good scalability and good electric performance and is in accordance with safety and environmental suitability requirements.
Description
Technical field
The utility model relates to field of cables, relates in particular to a kind of aluminium alloy cable.
Background technology
Existing cable adopts traditional copper conductor structure mostly, and the stranded coefficient that presses of not only manufacturing process's complexity, and conductor is low, there is larger gap between the conductor single line, not only easily meets the water infiltration, cause the conductor oxidation, increase conductor DC resistance, affect the current-carrying performance of cable.The more important thing is, copper conductor involves great expense (high position of current copper valency up to nearly 60,000 yuan/tons), and, as the main material of the another kind of cable conductor, aluminium is relatively cheap (forward price is only 1.6 ten thousand yuan/tons of left and right) but.
Can with aluminium for copper, be the century difficult problem perplexed in the industry always, with regard to its former because: although aluminium is the excellence conductor (resistivity of copper: 0.017241 Ω mm that is only second to copper
2/ m, the resistivity of aluminium: 0.028264 Ω mm
2/ m), but due to aluminium exist oxidation, morphological element not closely, the easy shortcoming such as creep, when with the aluminium instead of copper, making cable, tend to occur the joint oxidation and become flexible, cause and heating often occurs and the generation fault point when transmission of electric energy, therefore this class cable all adopted copper conductor in the past always.
The utility model content
The purpose of this utility model is that a kind of aluminium alloy cable will be provided, and has the advantages such as cost is low, good bending property, ductility is excellent, electrical property is good.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of aluminium alloy cable comprises the cable inner core and wraps in the outer cable outer layer of cable inner core that it is characterized in that, described cable inner core comprises four mutual stranded cores, and described core comprises aluminium alloy conductor and the wrapped flame retardant insulation in the aluminium alloy conductor outside; Cable outer layer is followed successively by glass fiber tape, fire-retardant inner covering, the chain steel band of self-locking type, low-smoke halogen-free flame-retardant sheath from inside to outside; Be provided with the high flame retardant inserts between cable inner core and cable outer layer.
In an embodiment of the present utility model, described high flame retardant inserts is glass cord.
In an embodiment of the present utility model, described flame retardant insulation is flame-retardant crosslinking polyethylene.
In an embodiment of the present utility model, described low-smoke halogen-free flame-retardant sheath is 90 ℃ of low-smoke non-halogen flame-retardant pvc sheathing compounds.
With copper cable, compare, aluminium alloy cable of the present utility model has:
1. good bending property: the regulation of bending radius when in GB/T12706, copper cable being installed, the bending radius of copper cable is 10～20 times of cable sizes, the bending radius minimum of aluminium alloy cable is 7 times of cable sizes, use aluminium alloy cable to reduce the space of mounting arrangement, reduced installation cost, be easier to lay.
2. ductility excellence: the elongation of aluminium alloy cable after due to annealing in process can arrive or surpass 30%, higher than 25% standard of copper cable.
3. bounce-back property is little: the bounce-back of aluminium alloy cable is less than copper cable, more is conducive to the tightness degree that terminal connects joint, is easy to compress, and improves the stability connected.
4. electrical property is good: aluminium alloy is better than adding rare earth and annealing in process, and conductance surpasses 61.5%IACS, and the conductivity of fine aluminium is 61%IACS, thereby the electric conductivity of aluminium alloy is better.
5. decay resistance is strong: the decay resistance of fine aluminium is better than copper, but the decay resistance of aluminium alloy is more excellent than fine aluminium, because the chemical elements such as the rare earth added in aluminium alloy can increase the decay resistance of aluminium alloy, the special electrochemical corrosion resistant performance that increases him, the problem of the electrochemical corrosion that this occurs in joint for a long time with regard to the solution fine aluminium.
In addition, because the utility model adopts the chain steel-tape armouring of self-locking type, steel-tape armouring also has the following advantages on year-on-year basis: 1. lightweight, good bending property, be easy to install, and can exempt from crane span structure or economize the crane span structure expense; 2. mechanical strength is high, but direct-burried is exempted from corrosive pipeline; 3. corrosion resistant performance is good, not perishable, longer service life; 4. have stronger resistance to compression, shock resistance, resistance of failure is higher; 5. fire resistance is better, can be applicable to inflammable, explosive hazardous area, and flame retardant rating can reach the IA level.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better execution mode of this case and be obtained and be well understood to.
The accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, further set forth the utility model below in conjunction with specific embodiment.
As shown in Figure 1, a kind of aluminium alloy cable, comprise the cable inner core and wrap in the outer cable outer layer of cable inner core.
The cable inner core comprises four mutual stranded cores, and core comprises aluminium alloy conductor 1 and the wrapped flame retardant insulation in the aluminium alloy conductor outside 2.Adopting aluminum alloy materials to make conductor has not only improved mechanical strength (the aluminium alloy pulling force is 1.3 times of aluminium), corrosion resistance (corrosion resistance of aluminium alloy is better than copper aluminium greatly) and the compactness of conductor (the aluminium alloy creep-resistant property has improved 300% on aluminium base plinth, thoroughly avoided the cable joint relaxation problem caused due to cold flow or creep), and (aluminium alloy is higher by 30% than copper pliability, and bounce-back property is than copper low 40% to have good pliability.The bending radius minimum of aluminium alloy cable is 7 times of cable sizes, uses aluminium alloy cable to reduce the space of mounting arrangement, has reduced installation cost, is easier to lay.In the present embodiment, flame retardant insulation is flame-retardant crosslinking polyethylene.
Cable outer layer is followed successively by glass fiber tape 4, fire-retardant inner covering 5, the chain steel band 6 of self-locking type, low-smoke halogen-free flame-retardant sheath 7 from inside to outside; Low-smoke halogen-free flame-retardant sheath is 90 ℃ of low-smoke non-halogen flame-retardant pvc sheathing compounds.Be provided with the high flame retardant inserts between cable inner core and cable outer layer.The high flame retardant inserts is glass cord.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection range that the utility model requires is defined by appending claims and equivalent thereof.
Claims (4)
1. an aluminium alloy cable, comprise the cable inner core and wrap in the outer cable outer layer of cable inner core, it is characterized in that, described cable inner core comprises four mutual stranded cores, and described core comprises aluminium alloy conductor and the wrapped flame retardant insulation in the aluminium alloy conductor outside; Cable outer layer is followed successively by glass fiber tape, fire-retardant inner covering, the chain steel band of self-locking type, low-smoke halogen-free flame-retardant sheath from inside to outside; Be provided with the high flame retardant inserts between cable inner core and cable outer layer.
2. aluminium alloy cable according to claim 1, is characterized in that, described high flame retardant inserts is glass cord.
3. aluminium alloy cable according to claim 1, is characterized in that, described flame retardant insulation is flame-retardant crosslinking polyethylene.
4. aluminium alloy cable according to claim 1, is characterized in that, described low-smoke halogen-free flame-retardant sheath is 90 ℃ of low-smoke non-halogen flame-retardant pvc sheathing compounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415141.0U CN203376997U (en) | 2013-07-12 | 2013-07-12 | Aluminum alloy cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415141.0U CN203376997U (en) | 2013-07-12 | 2013-07-12 | Aluminum alloy cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203376997U true CN203376997U (en) | 2014-01-01 |
Family
ID=49839512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320415141.0U Expired - Fee Related CN203376997U (en) | 2013-07-12 | 2013-07-12 | Aluminum alloy cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203376997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547838A (en) * | 2016-01-29 | 2016-05-04 | 河南省卓越电缆有限公司 | Aluminum alloy interlocked armored cable tightness test device |
-
2013
- 2013-07-12 CN CN201320415141.0U patent/CN203376997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547838A (en) * | 2016-01-29 | 2016-05-04 | 河南省卓越电缆有限公司 | Aluminum alloy interlocked armored cable tightness test device |
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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: 20140101 Termination date: 20160712 |