CN204303423U - A kind of communication base station zooms out cable with novel - Google Patents
A kind of communication base station zooms out cable with novel Download PDFInfo
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- CN204303423U CN204303423U CN201420631571.0U CN201420631571U CN204303423U CN 204303423 U CN204303423 U CN 204303423U CN 201420631571 U CN201420631571 U CN 201420631571U CN 204303423 U CN204303423 U CN 204303423U
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Abstract
A kind of communication base station zooms out cable with novel; comprise cable alloy conductor (1), insulating barrier (2), gasket for packing (3), wrapped separator (4) and sheath protective layer (5); outside described cable alloy conductor (1), insulating barrier (2) is set; cable alloy conductor (1) insulating barrier (2) and gasket for packing (3) stranded shaping together, its outside from-inner-to-outer sets gradually wrapped separator (4) and sheath protective layer (5).The utility model adopts special tile-type compacting techniques, the coefficient that presses of cable conductor is made to reach 0.93, by pressing, the deficiency of aluminium alloy in volume conduction rate can be made up, make stranded conductor core be similar to solid conductor, make great efforts to reduce conductor thread core external diameter, improve volume conduction performance, in equal ampacity situation, aluminium alloy conductor external diameter is only than copper conductor slightly large about 10%.
Description
Technical field
The utility model relates to a kind of cable, and specifically a kind of communication base station zooms out cable with novel, is that center base station to multiple micro-base station power power supply low cost long distance zooms out aerial cable.
Background technology
At present, it is YD/T 1173-2010 that inner cable enterprise of state manufactures communication power supply cable operative norm, the mechanical performance of some insulating sheath materials, the electric property of cable and flame-retardant characteristic is specify only in standard, exactly, do not specify for zooming out built on stilts requirement, the concrete construction of cable is by user and manufacturer's communication and coordination, and user needs large span to zoom out built on stilts laying, and common cable then can not meet above-mentioned requirements.
For existing market present situation, the existing use of user zoom out aerial cable conductor for copper core or fine aluminium core process structure, the maximum cable deadweight supporting about 200 meters length of cable is only satisfied with under routine, adopt wire reinforced aluminium core process structure, also maximum support length about 2000 meters is only satisfied with, under the special climate such as ice slush and strong wind condition, cable passive drawing or fracture and occur many defects such as accident: 1, wire reinforced structure occurs that flashover discharges; 2, copper core cable is from great, can bearing length short; 3, aluminium cable very easily stretches or disconnected core; 4, after adopting polyvinyl chloride insulation and sheath material infiltration, insulating resistance of cable reduces; 5, outdoor laid is easily aging, and useful life is short.6, manufacture and laid down cost high.
Summary of the invention
The utility model object is to overcome above-mentioned defect, a kind of communication base station is provided to zoom out cable with novel, this communication base station with novel zoom out cable there is low cost of manufacture, conduct oneself with dignity little, can bearing length long, not easily to stretch or disconnected core, insulation resistance is high, outdoor laid is not easily aging, long service life, antitheft without copper, the long more advantages such as distance is directly maked somebody a mere figurehead, installation cost is low, safety in utilization is high zoom out aerial cable.
A kind of communication base station zooms out cable with novel; it is characterized in that comprising cable alloy conductor 1, insulating barrier 2, gasket for packing 3, wrapped separator 4 and sheath protective layer 5; outside described cable alloy conductor 1, insulating barrier 2 is set; cable alloy conductor 1 insulating barrier 2 is stranded shaping together with gasket for packing 3, and its outside from-inner-to-outer sets gradually wrapped separator 4 and sheath protective layer 5.
Described cable alloy conductor 1 is for being mixed with the aluminium alloy wire of copper, silicon, iron, magnesium, zinc, boron and rare earth element through stranded cable conductor.Owing to being mixed with silicon, iron, magnesium, zinc, boron and rare earth element, have employed the processing technology of different pure aluminum material, drastically increase tensile strength, under normality, the fracture elongation of material brings up to about 30%, uses more safe and reliable.
The material of described insulating barrier 2 is cross-linked polyolefin XLPE cable Insulation Material.
The modes such as crosslinking process can adopt that silane natural-crosslinked, warm water crosslinking, chemical vapors are crosslinked, electron irradiation or UV-irradiation, but must ensure crosslinked after the mechanical performance of product insulation and ageing properties meet the requirements.
The material of described gasket for packing 3 is the rope made of hemp, FRP material or aramid fiber.
General tensile strength selects the rope made of hemp as filling reinforcing material, require that higher high temperature resistant FRP material of selecting assists polypropylene mesh to tear rope as filling reinforcing material, large span zooms out the built on stilts cable laid and adopts the rope made of hemp to be wound around aramid fiber as filling reinforcing material.
The material of described wrapped separator 4 is polyester belt.To be that double-layer overlapping is wrapped have good electrical insulation property polyester belt to wrapped separator.
Described sheath protective layer 5 is polyolefin PE cable jacket material.Flame retardant polyolefin jacket material can be selected according to operating characteristic.
The beneficial effects of the utility model are:
The novel cable large size conductor that zooms out of communication base station of the present utility model adopts special tile-type compacting techniques, the coefficient that presses of cable conductor is made to reach 0.93, by pressing, the deficiency of aluminium alloy in volume conduction rate can be made up, make stranded conductor core be similar to solid conductor, make great efforts to reduce conductor thread core external diameter, improve volume conduction performance, in equal ampacity situation, aluminium alloy conductor external diameter is only than copper conductor slightly large about 10%.
To zoom out the aluminium alloy conductor that cable uses lightweight with novel for communication base station of the present utility model, is more suitable for that cable is built on stilts to be used.In actual production, aluminium alloy conductor does not allow joint, and has not allowed scratch and discounting phenomenon aborning, and aluminium alloy conductor D.C. resistance and mechanical performance should meet the requirement that standard GB/T/T3956-2008 specifies.
The novel cable that zooms out of communication base station of the present utility model adopts that double-layer polyester band is high overlappingly wrappedly to be prevented from rain leakage from making moist making cable to avoid insulation resistance performance reducing and the defects such as span are zoomed out in cable weight increase reduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Further illustrate the utility model below in conjunction with accompanying drawing 1 and embodiment to create.
A kind of communication base station zooms out cable with novel; it is characterized in that comprising cable alloy conductor 1, insulating barrier 2, gasket for packing 3, wrapped separator 4 and sheath protective layer 5; outside described cable alloy conductor 1, insulating barrier 2 is set; cable alloy conductor 1 insulating barrier 2 is stranded shaping together with gasket for packing 3, and its outside from-inner-to-outer sets gradually wrapped separator 4 and sheath protective layer 5.
Described cable alloy conductor 1 is that rare earth aluminium alloy bar is through drawing the stranded cable conductor pressed, rare earth aluminum alloy conductor is compared to fine aluminium conductor, owing to being mixed with silicon, iron, magnesium, zinc, boron and rare earth element, have employed the processing technology of different pure aluminum material, drastically increase tensile strength, under normality, the fracture elongation of material brings up to about 30%, uses more safe and reliable.The aluminium alloy conductor adopted has made improvement from material property aspect, also obtains larger optimization at process aspect.
Large size conductor adopts special tile-type compacting techniques, the coefficient that presses of cable conductor is made to reach 0.93, by pressing, the deficiency of aluminium alloy in volume conduction rate can be made up, make stranded conductor core be similar to solid conductor, make great efforts to reduce conductor thread core external diameter, improve volume conduction performance, in equal ampacity situation, aluminium alloy conductor external diameter is only than copper conductor slightly large about 10%.
Aluminum alloy materials conductance is 61.8% of the most frequently used reference material copper IACS, and ampacity is 79% of copper, is better than fine aluminium conductor, but under the same volume, the actual weight of aluminium alloy is about 30% of copper.Therefore, when having equal ampacity, the weight of aluminium alloy cable is about 50% of copper cable.
Adopt aluminium alloy cable to replace copper cable, can cable weight be alleviated, reduce installation cost, reduce the wearing and tearing of equipment and cable, make installment work lighter.Because aluminum metal is lower than copper metal price more and density is also little, electric conductivity also meets the demands, and needs equal ampacity and existing copper aluminium calculation of price according to cable, uses aluminium alloy conductor cost to be about 1/5 times of copper conductor.The aluminium alloy conductor that the utility model uses is lightweight, is more suitable for the built on stilts use of cable.In actual production, aluminium alloy conductor does not allow joint, and has not allowed scratch and discounting phenomenon aborning, and aluminium alloy conductor D.C. resistance and mechanical performance should meet the requirement that standard GB/T/T 3956-2008 specifies.
The insulating barrier that described insulating barrier 2 extrudes for cross-linked polyolefin XLPE, the crosslinking process suggestion not high for flame-retardancy requirements adopts natural-crosslinked or warm water crosslinking, and technique is simple and convenient, cost is low, convenient operation; The crosslinking process suggestion that flame-retardancy requirements is higher adopts electron accelerator irradiation mode, calculates the maximum radian of insulating barrier, adjusts electron energy during irradiation, accomplish that the whole of electronics penetrate, in case puncture when detecting, and insulated wire cores cooling work when noting irradiation, prevent insulating barrier from occurring pore.Measure through science, insulating barrier adopts crosslinking process cable to extend more than one times useful life.
Described gasket for packing 3 is the rope made of hemp, FRP material, or the tension reinforcing material such as aramid fiber, general tensile strength selects the rope made of hemp as filling reinforcing material, require that higher high temperature resistant FRP material of selecting assists polypropylene mesh to tear rope as filling reinforcing material, large span zooms out the built on stilts cable laid and adopts the rope made of hemp to be wound around aramid fiber as filling reinforcing material.In stranding stranding process, adopt circular tungsten steel die to press, the pore size control of tungsten steel die, at 0.1 ~ 0.2mm less of cable twisting core external diameter, suitably controls gasket for packing tension force, increases and decreases some polypropylene mesh and tear gasket for packing, ensures cable core rounding, and range estimation does not bend.
Described wrapped separator 4 has good electrical insulation property polyester belt for double-layer overlapping is wrapped.Adopt the polyester belt double-layer overlapping with electrical insulation properties preferably wrapped, ensure that polyester belt is wrapped tight, smooth, control conductor assembly outer diameter uniform and stable.Adopt that double-layer polyester band is high overlappingly wrappedly to be prevented from rain leakage from making moist making cable to avoid insulation resistance performance reducing and the defects such as span are zoomed out in cable weight increase reduction.
Described sheath protective layer 5 extrudes restrictive coating for polyolefin (PE), can select flame retardant polyolefin jacket material according to operating characteristic.Adopt fire-retardant polyethylene cable protective cover material closely to extrude sheath protective layer, can to stop in cable outdoor fire disaster once burning is prolonged combustion and causes more major break down disaster, there is the features such as safety and environmental protection.
The novel cable that zooms out of produced aluminium alloy conductor has equal electric property, superior security performance and mechanical performance, and the novel mounting and installation cost zooming out cable of aluminium alloy conductor is low, because the silicon, iron, magnesium, zinc, boron and the rare earth element that mix in aluminum-alloy conductor material improve the tensile strength of fine aluminium.Measure through science, in 1000 meters of length, copper conductor cable at least needs construction 5 strong points to be fixed, and aluminium alloy cable is due to lightweight, tensile strength is high, can ensure safety with equidistant needs 2 ~ 3 strong points, this considerably reduce the Quantity of electric force pole tower, greatly reduce installation cost.In manufacturing cost, performance structure, all have greater advantage with the novel cable that zooms out of aluminium alloy conductor, larger cross-section power cable development trend will be become with aluminium for copper, especially there is obvious performance advantage zooming out in aerial cable.
Example recited above is only be described the preferred implementation of the utility model cable design structure; not design of the present utility model and scope are limited; do not departing under the utility model design concept prerequisite; in this area, common engineers and technicians improve and manufacture method the various modification that the technical solution of the utility model is made; all should fall into protection range of the present utility model, the technology contents of the utility model request protection is all recorded in detail in the claims.
Claims (6)
1. a communication base station zooms out cable with novel; it is characterized in that comprising cable alloy conductor (1), insulating barrier (2), gasket for packing (3), wrapped separator (4) and sheath protective layer (5); outside described cable alloy conductor (1), insulating barrier (2) is set; cable alloy conductor (1) insulating barrier (2) and gasket for packing (3) stranded shaping together, its outside from-inner-to-outer sets gradually wrapped separator (4) and sheath protective layer (5).
2. a kind of communication base station according to claim 1 zooms out cable with novel, it is characterized in that described cable alloy conductor (1) is for being mixed with the aluminium alloy wire of copper, silicon, iron, magnesium, zinc, boron and rare earth element through stranded cable conductor.
3. a kind of communication base station according to claim 1 zooms out cable with novel, it is characterized in that the material of described insulating barrier (2) is cross-linked polyolefin (XLPE) insulating material for cable.
4. a kind of communication base station according to claim 1 zooms out cable with novel, it is characterized in that the material of described gasket for packing (3) is the rope made of hemp, FRP material or aramid fiber.
5. a kind of communication base station according to claim 1 zooms out cable with novel, it is characterized in that the material of described wrapped separator (4) is polyester belt.
6. a kind of communication base station according to claim 1 zooms out cable with novel, it is characterized in that described sheath protective layer (5) is for polyolefin (PE) cable jacket material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420631571.0U CN204303423U (en) | 2014-10-28 | 2014-10-28 | A kind of communication base station zooms out cable with novel |
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| CN201420631571.0U CN204303423U (en) | 2014-10-28 | 2014-10-28 | A kind of communication base station zooms out cable with novel |
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| CN204303423U true CN204303423U (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117049A (en) * | 2020-08-28 | 2020-12-22 | 贵州电网有限责任公司 | Secondary circuit cable convenient to distinguish and fast and correctly connect |
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2014
- 2014-10-28 CN CN201420631571.0U patent/CN204303423U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117049A (en) * | 2020-08-28 | 2020-12-22 | 贵州电网有限责任公司 | Secondary circuit cable convenient to distinguish and fast and correctly connect |
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