CN202042255U - Halogen-free environment-friendly power cable with aluminium alloy conductor and aluminium sheath - Google Patents
Halogen-free environment-friendly power cable with aluminium alloy conductor and aluminium sheath Download PDFInfo
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- CN202042255U CN202042255U CN2011201555729U CN201120155572U CN202042255U CN 202042255 U CN202042255 U CN 202042255U CN 2011201555729 U CN2011201555729 U CN 2011201555729U CN 201120155572 U CN201120155572 U CN 201120155572U CN 202042255 U CN202042255 U CN 202042255U
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Abstract
The utility model discloses a halogen-free environment-friendly power cable with an aluminium alloy conductor and an aluminium sheath. For the halogen-free environment-friendly power cable, an insulating cable core consists of a conductor and an insulating layer wrapped tightly at the outer layer of the conductor, the conductor is an aluminium alloy conductor, a cable core is formed by twisting a plurality of insulating cable cores, a filling layer is arranged in a gap of the cable core; an isolation layer is wrapped and the outer sheath is wrapped tightly outside the cable core and the filling layer in sequence. The halogen-free environment-friendly power cable replaces copper with aluminium so as to relief the lack copper resources in China, has the advantages of light weight, no need of penetrating a pipe, convenience in installation, thus greatly lowering the proposed engineering cost; and meanwhile, the cable also has good effect when being used as a waterproof cable.
Description
Technical field:
The utility model relates to a kind of cable, specifically a kind of aluminium alloy conductor aluminium sheath halogen-free environment-friendly type power cable.
Background technology:
Used cable is low-smoke halogen-free inflaming-retarding cable substantially in China public place at present, conductor has copper core and aluminium core, and the copper resource is in China's shortage, price is also very high, reached more than 70,000 yuan one ton, and China's bauxite resource is abundant, but the creep resistant and the extension property of common electrician's aluminium are poor, cause the safety in operation in the cable running poor, so it is less at the power cable that China makes conductor wire core with aluminium, along with the aluminium alloy of 8000 series is produced in batches in China, adopt 8000 series alloys to become a kind of possibility as conductor, supply line in north america such as the U.S. 90% has adopted 8000 series alloys to make the conductor of power cable, thus adopt the aluminium alloy of 8000 series to make conductor, China required in a large amount of utilizations.
And for low cigarette, Halogen and fire-retardant performance, now the low-smoke halogen-free inflaming-retarding cable of usefulness will reach smokelessly, the performance requirement of Halogen and difficult combustion really is difficult to, and is very big to the material cost increase, and the employing metal is made sheath and just is easy to.Though materials such as insulation can burn, completely cut off air by metallic sheath, can't burn or discharge smog and pernicious gas.
Summary of the invention:
For overcoming the defective of prior art; the purpose of this utility model is to provide a kind of aluminium alloy conductor aluminium sheath halogen-free environment-friendly type power cable; it is the new generation product of instead of copper, aluminium core low-smoke halogen-free flame retardant power cable; save the copper resource; the cost performance height, electric fireproof safety and environmental protection effect are better.
The utility model technical solution problem adopts following technical scheme:
Aluminium alloy conductor aluminium sheath halogen-free environment-friendly type power cable, by conductor and be extruded in the outer field insulating barrier of described conductor and constitute insulated wire cores, described conductor is an aluminium alloy conductor, the edge cores that thoroughly do away with are twisted into cable conductor more, the cable core gap is provided with packed layer, is surrounded with separator successively outside described cable core and described packed layer, is extruded with oversheath.
Design feature of the present utility model also is:
Described insulating barrier is crosslinked polyethylene or cross-linking radiation polyolefin insulation material.
Described oversheath is the aluminium alloy oversheath.
Described oversheath is the aluminium sheath through embossing processing.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, conductor has adopted 8000 serial electrician's level aluminium alloys to make conductor wire core, conductor ampacity is suitable with the aluminium core, it is 61% of copper conductor, and the aluminium alloy conductor material cost is the copper conductor material cost about about 20%, and 8000 serial electrician's level aluminium alloy make conductor, the creep-resistant property and the extension property of conductor are good, have improved the using system reliability of operation greatly.
2, the oversheath of cable is for extruding aluminium sheath, the melting temperature of aluminium is 660 ℃, therefore, cable jacket can not burn 660 ℃ of following temperature, insulation, filling and isolation and the lapping layer material of cable the inside are isolated by outer jacket, cable itself do not contact with air, can't form the condition of burning, so can not produce dieseling because of aging, overload or short circuit yet.
3, because the utility model cable has smokelessly, Halogen and difficult characteristic of firing, the secondary disaster of cable under the fire condition also significantly reduced, and can not cause how many negative effects to environmental protection, is better than existing low-smoke non-halogen flame-retardant environment-friendly cable.
4, the utility model cable long service life.Because the aluminium of aluminium sheath contacts the back and forms layer of oxide layer on its surface with airborne oxygen, aluminium oxide has prevented the further oxidation of aluminium sheath, and therefore, the corrosion resistance of aluminium sheath is strong; The material and the air of cable the inside are isolated again, and the ageing process of insulation and other material delays greatly, and can reach more than 60 the useful life of cable as calculated.
5, because cable jacket has adopted and extruded aluminium sheath, still do not have fire protecting performance, its antiseptic property, water resistance, can be used as submerged cable and use.
6, because aluminium sheath has been carried out the embossing PROCESS FOR TREATMENT, the bending radius of the utility model cable can be compared with common cable, and installing does not need poling when laying yet, and has saved the poling material.
7, aluminium sheath can be done zero line ground connection, can save a conductor than common cable, also can be used as screen uses, has good shield effectiveness, total screen in alternative original construction of cable, therefore, the utility model cable does not need to add up in addition shielding construction, saved conductor material and shielding material, cost has also reduced.
8, owing to adopted aluminium alloy conductor and aluminium sheath, saved the copper resource, cable is in light weight, need not poling, and is easy for installation, and the construction investment cost reduces, and cost performance is far above existing power cable.
The technical performance index of the utility model cable:
2.1 rated voltage: 0.6/1kV or 1.8/3kV.
2.2 the highest for a long time permission working temperature of cable: 90 ℃, 105 ℃ and 125 ℃, the short time allows to reach: 250 ℃.
2.3 minimum bending radius: be not less than 10 times of the outside diameter of cable.
2.4 conductor resistance meets the regulation of aluminium conductor in 3956 in the time of 20 ℃.
2.5 manufacture test voltage: 3500V/5min or 6500V/5min.
2.6 insulation resistance: in the time of 20 ℃, be not less than 1000M Ω/km.
2.7 there is not smoke performance: light transmittance 〉=90% (low smoke performance be 〉=60%)
2.8 Halogen performance: pH value 〉=4.3, conductivity≤10 μ S/mm.
2.9 combustibility: cable is under 750 ℃ flame temperature, and for fiery 40min, cable jacket only melts at the burning things which may cause a fire disaster place, cable inside is only burnt near burning things which may cause a fire disaster, the distance of burning stops also not have flame on the cable and prolonging combustion for behind the fire less than common low-smoke halogen-free inflaming-retarding cable.
2.10 shielding properties: shielding rejection coefficient≤0.05%.
Description of drawings:
Fig. 1 is the structural representation of the utility model cable.
Number in the figure: 1 conductor, 2 insulating barriers, 3 packed layers, 4 separators, 5 oversheaths.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Embodiment:
Embodiment: referring to Fig. 1, the present embodiment power cable, comprise cable aluminium alloy conductor 1, conductor 1 outer extruded insulation layer 2 forms insulated wire cores, the edge core bundle strands of thoroughly doing away with form cable core more, adopt the Halogen material that the space between the core in the cable core is filled and constitute packed layer 3, wrapped two layers of high temperature resistant inorganic band form separator 4 cable core outside, and the outermost layer of cable adopts and extrudes and through the oversheath 5 of embossing processing.
In concrete the enforcement, conductor 1 adopts 8000 serial electrician's level aluminium alloys, can adopt first kind or second kind of aluminium conductor structure meeting the GB/T3956 regulation as required.Insulating barrier 2 can adopt crosslinked polyethylene (90 ℃) or cross-linking radiation polyolefin (105 ℃, 125 ℃) insulating material to extrude respectively according to the environment for use temperature.The laying up pitch of stranding cable core: be not more than 20 times of laying up diameter, and the core gap is filled, the material of packed layer 3 is: with the corresponding to Halogen material of insulating material temperature resistant grade packing; At the overlapping wrapped two layers of high temperature resistant inorganic material of cable core as separator 4.The high-strength aluminium sheath adopts and extrudes technology, and sheath is carried out embossing handle.
Claims (4)
1. aluminium alloy conductor aluminium sheath halogen-free environment-friendly type power cable, by conductor (1) and be extruded in the outer field insulating barrier of described conductor (2) and constitute insulated wire cores, it is characterized in that, described conductor (1) is an aluminium alloy conductor, the edge cores that thoroughly do away with are twisted into cable conductor more, the cable core gap is provided with packed layer (3), is surrounded with separator (4) successively outside described cable core and described packed layer, is extruded with oversheath (5).
2. aluminium alloy conductor aluminium sheath halogen-free environment-friendly type power cable according to claim 1 is characterized in that, described insulating barrier (2) is crosslinked polyethylene or cross-linking radiation polyolefin insulation material.
3. aluminium alloy conductor aluminium sheath halogen-free environment-friendly type power cable according to claim 1 is characterized in that described oversheath (5) is the aluminium alloy oversheath.
4. aluminium alloy conductor aluminium sheath halogen-free environment-friendly type power cable according to claim 3 is characterized in that, described oversheath (5) is the aluminium sheath through embossing processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201555729U CN202042255U (en) | 2011-05-16 | 2011-05-16 | Halogen-free environment-friendly power cable with aluminium alloy conductor and aluminium sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201555729U CN202042255U (en) | 2011-05-16 | 2011-05-16 | Halogen-free environment-friendly power cable with aluminium alloy conductor and aluminium sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042255U true CN202042255U (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201555729U Expired - Fee Related CN202042255U (en) | 2011-05-16 | 2011-05-16 | Halogen-free environment-friendly power cable with aluminium alloy conductor and aluminium sheath |
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| CN (1) | CN202042255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800422A (en) * | 2012-07-19 | 2012-11-28 | 江苏双登电力科技有限公司 | Manufacturing method for novel aluminium alloy cable |
-
2011
- 2011-05-16 CN CN2011201555729U patent/CN202042255U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800422A (en) * | 2012-07-19 | 2012-11-28 | 江苏双登电力科技有限公司 | Manufacturing method for novel aluminium alloy cable |
| CN102800422B (en) * | 2012-07-19 | 2014-05-28 | 江苏双登电力科技有限公司 | Manufacturing method for novel aluminium alloy cable |
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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: 20111116 Termination date: 20180516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |