CN203746440U - Novel composite structured aluminium alloy cable - Google Patents
Novel composite structured aluminium alloy cable Download PDFInfo
- Publication number
- CN203746440U CN203746440U CN201420076760.6U CN201420076760U CN203746440U CN 203746440 U CN203746440 U CN 203746440U CN 201420076760 U CN201420076760 U CN 201420076760U CN 203746440 U CN203746440 U CN 203746440U
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- aluminium
- aluminium alloy
- cable
- polyethylene layer
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Abstract
The utility model relates to a novel composite structured aluminium alloy cable which comprises a PVC sheath, a fiberglass composite thin layer, a sparsely-wrapped neutral wire layer and an XLPE cross-linked polyethylene layer. Two aluminum conductor cores are arranged in the XLPE cross-linked polyethylene layer. A basalt fibre flame-retardant layer and a metallic sheath layer are arranged between the sparsely-wrapped neutral wire layer and the XLPE cross-linked polyethylene layer. The cable provided by the utility model has excellent conductivity and excellent flame retardation, can reach FT1 combustion standard in UL and accords with ROHS. As creep resistance and compactness of the cable are raised by 300%, loosening problem caused by creep is avoided. By a special processing technology, an 8176 aluminium alloy cable has higher yield strength than a pure aluminium cable, ductility is raised by 30%, springback value is small, and there is no memory effect.
Description
Technical field
The utility model relates to the technical field of cable, especially a kind of aluminium alloy cable of compound structure for new residence.
Background technology
In known technical field, along with the development of advancing by leaps and bounds of power industry, the demand of cable just increases progressively with 10～15% annual growth.Now wires and cables industry conductor used is mainly copper and aluminium, because copper valency is soaring at a high speed, in order to reduce producing cost, world's wires and cables industry propose to using aluminium for copper the method as electric wire and cable conductor.At present, China's aluminium production capacity surplus, meanwhile, the breach of copper material is large needs import, in order to change the dependence to copper material, makes full use of Domestic Resources, guarantees that the key of power industry sustainable development is to widely popularize aluminium as the conductor of electric wire.In cable industry, aluminium is the ideal material that replaces copper, but fine aluminium conductor exists again some shortcomings as: bad mechanical strength, easily creep, easily overload heating etc.
At present, the structure of conventional aluminium conductor cable is the stranded compact conductor of aluminium monofilament, insulating barrier, steel-tape armouring layer, outer jacket.The coefficient that presses of conventional stranded conductor reaches 0.9 left and right, reach same electric property, the sectional area of aluminium conductor need to or increase 50% than large two grades of copper conductor, and conductor diameter is larger, steel-tape armouring level of security is low, when being subject to extraneous destructive power, its defensive ability/resistance ability is poor, easily causes puncturing, and Heavy Weight, installation cost is quite high, poor corrosion resistance in addition, and useful life is not long.This common cable structure, cannot in adverse circumstances, move for a long time, and processing is more complicated and difficult.Under normal circumstances, existing cable can meet the demands, if but cable be used in adverse circumstances and cable security required, in higher environment, can not to meet instructions for use.
The aluminium cable using in Building Trade in China, its material is fine aluminium.Its shortcoming is: creep-resistant property is poor, by expanding with heat and contract with cold of causing of energising power-off, in junction, can cause creep, can relax after long-time, and the thrust of bolt diminishes relatively, contact resistance increase and cause overheated, finally accidents caused.The bolt material that terminal is connected with equipment or busbar is uneven, or even iron bolt, and the coefficient of expansion of metal material is different, and does not add and shoot pad when mounted, causes air to enter formation oxide-film, contact resistance is increased and overheated, is also hidden danger.Fine aluminium cable terminal used, without special processing, may produce electrochemical corrosion with the junction of copper bar.Meanwhile, the aluminium cable using in building industry, during breaking out of fire, cable can not play effective fire retardation, and the easy conductor of toxic gas is choked to death.
Utility model content
The technical problems to be solved in the utility model is: overcome the problems referred to above, provide that a kind of electric conductivity is high, fire-retardant, environmental protection, creep resistance and compression is high, tensile strength is high, yield strength is high, elongation is high, springback capacity is little, the aluminium alloy cable of memory-less effect, compound structure for new residence easy for installation.
The utility model solves the technical scheme that its technical problem adopts: a kind of aluminium alloy cable of compound structure for new residence, comprise set gradually from outside to inside and PVC sheath, glass fiber THIN COMPOSITE rete, dredge around neutral line layer and XLPE crosslinked polyethylene layer, in described XLPE crosslinked polyethylene layer, be provided with two aluminium conductor cores, described dredging, between neutral line layer and XLPE crosslinked polyethylene layer, be provided with basalt fibre flame-retardant layer and metal sheath layer, in gap between described two aluminium conductor cores, being arranged with two cross sections is oval-shaped reinforcing packing, aluminium conductor core in described XLPE crosslinked polyethylene layer inside region, reinforce between packing and be filled with pitch, and described dredging has a bare conductor at least in neutral line layer.
Further, as a kind of concrete execution mode, the core of aluminium conductor described in the utility model is by three aluminium alloy wire bodies and be wrapped in respectively three insulating barriers on described aluminium alloy wire body and be hinged to be wound around and form.
Further, as a kind of concrete execution mode, the thickness of the crosslinked polyethylene of XLPE described in the utility model layer is 1.14mm.
Further, as a kind of concrete execution mode, the thickness of the sheath of PVC described in the utility model is 0.76mm.
The beneficial effects of the utility model are: the utility model electric conductivity is good, aluminium conductor core adopts 8176 aluminium alloy conductors rather than fine aluminium 1350 cables, 8176 aluminium alloys are led has significantly increased silicon and ferro element, as everyone knows, in aluminium, add after other multiple alloying element, electric conductivity can decline, and 8176 aluminium alloys are by technology controlling and process, make conductance be returned to the level of fine aluminium; Excellent fire resistance, can reach the FT1 combustion standard in UL, meets ROHS; Creep resistance has improved 300% with compression property, has avoided the relaxation problem causing due to creep; Special processes process makes 8176 aluminium alloys have higher yield strength than fine aluminium cable, and elongation has improved 30%, and springback capacity is little, memory-less effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
In figure: 1.PVC sheath, 2. glass fiber THIN COMPOSITE rete, 3. dredges around neutral line layer, 31. bare conductors, 4.XLPE crosslinked polyethylene layer, 5. aluminium conductor core, 6. basalt fibre flame-retardant layer, 7. metal sheath layer, 8. reinforcing packing.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
The preferred embodiment of the aluminium alloy cable of the utility model compound structure for new residence as shown in Figure 1, comprise set gradually from outside to inside and PVC sheath 1, glass fiber THIN COMPOSITE rete 2, dredge around neutral line layer 3 and XLPE crosslinked polyethylene layer 4, in described XLPE crosslinked polyethylene layer 4, be provided with two aluminium conductor cores 5, described dredging, between neutral line layer 3 and XLPE crosslinked polyethylene layer 4, be provided with basalt fibre flame-retardant layer 6 and metal sheath layer 7, in gap between described two aluminium conductor cores 5, being arranged with two cross sections is oval-shaped reinforcing packing 8, aluminium conductor core 5 in described XLPE crosslinked polyethylene layer 4 inside region, reinforce between packing 8 and be filled with pitch, and described dredging has a bare conductor 31 at least in neutral line layer 3.
Described aluminium conductor core 5 is by three aluminium alloy wire bodies and be wrapped in respectively three insulating barriers on described aluminium alloy wire body and be hinged to be wound around and form.
The thickness of described XLPE crosslinked polyethylene layer 4 is 1.14mm.
The thickness of described PVC sheath 1 is 0.76mm.
The utility model electric conductivity is good, aluminium conductor core adopts 8176 aluminium alloy conductors rather than fine aluminium 1350 cables, 8176 aluminium alloys are led has significantly increased silicon and ferro element, as everyone knows, in aluminium, add after other multiple alloying element, electric conductivity can decline, and 8176 aluminium alloys are by technology controlling and process, make conductance be returned to the level of fine aluminium; Excellent fire resistance, can reach the FT1 combustion standard in UL, meets ROHS; Creep resistance has improved 300% with compression property, has avoided the relaxation problem causing due to creep; Special processes process makes 8176 aluminium alloys have higher yield strength than fine aluminium cable, and elongation has improved 30%, and springback capacity is little, memory-less effect.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (4)
1. the aluminium alloy cable of a compound structure for new residence, it is characterized in that: comprise set gradually from outside to inside and PVC sheath (1), glass fiber THIN COMPOSITE rete (2), dredge around neutral line layer (3) and XLPE crosslinked polyethylene layer (4), in described XLPE crosslinked polyethylene layer (4), be provided with two aluminium conductor cores (5), described dredging, between neutral line layer (3) and XLPE crosslinked polyethylene layer (4), be provided with basalt fibre flame-retardant layer (6) and metal sheath layer (7), in gap between described two aluminium conductor cores (5), being arranged with two cross sections is oval-shaped reinforcing packing (8), aluminium conductor core (5) in described XLPE crosslinked polyethylene layer (4) inside region, reinforce between packing (8) and be filled with pitch, and described dredging has a bare conductor (31) at least in neutral line layer (3).
2. the aluminium alloy cable of compound structure for new residence as claimed in claim 1, is characterized in that: described aluminium conductor core (5) is by three aluminium alloy wire bodies and be wrapped in respectively three insulating barriers on described aluminium alloy wire body and be hinged to be wound around and form.
3. the aluminium alloy cable of compound structure for new residence as claimed in claim 1, is characterized in that: the thickness of described XLPE crosslinked polyethylene layer (4) is 1.14mm.
4. the aluminium alloy cable of compound structure for new residence as claimed in claim 1, is characterized in that: the thickness of described PVC sheath (1) is 0.76mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420076760.6U CN203746440U (en) | 2014-02-21 | 2014-02-21 | Novel composite structured aluminium alloy cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420076760.6U CN203746440U (en) | 2014-02-21 | 2014-02-21 | Novel composite structured aluminium alloy cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746440U true CN203746440U (en) | 2014-07-30 |
Family
ID=51346210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420076760.6U Expired - Fee Related CN203746440U (en) | 2014-02-21 | 2014-02-21 | Novel composite structured aluminium alloy cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203746440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121353A (en) * | 2021-11-18 | 2022-03-01 | 湖北工业大学 | Resistance to compression cable of road bridge snow melt ice |
-
2014
- 2014-02-21 CN CN201420076760.6U patent/CN203746440U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121353A (en) * | 2021-11-18 | 2022-03-01 | 湖北工业大学 | Resistance to compression cable of road bridge snow melt ice |
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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: 20140730 Termination date: 20200221 |