CN201527838U - Composite-conductor aerial insulation cable - Google Patents
Composite-conductor aerial insulation cable Download PDFInfo
- Publication number
- CN201527838U CN201527838U CN2009202088223U CN200920208822U CN201527838U CN 201527838 U CN201527838 U CN 201527838U CN 2009202088223 U CN2009202088223 U CN 2009202088223U CN 200920208822 U CN200920208822 U CN 200920208822U CN 201527838 U CN201527838 U CN 201527838U
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- copper
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- covered steel
- cable
- steel wire
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Abstract
The utility model discloses a composite-conductor aerial insulation cable. The section of the cable forms a multi-layer concentric-circle structure; the cable comprises a conductor, and a shielding layer and an insulation layer coated outside the conductor in sequence, wherein the conductor consists of an inner core part and an outer core part, wherein the inner core part is formed by one, seven or nineteen copper clad steel wires with equal diameter at the center of the cable; and the outer core part is formed by a plurality of copper clad aluminum wires with equal diameter, and covers the inner core part in a stranding way. The composite-conductor aerial insulation cable adopts the copper clad steel wires and the copper clad aluminum wires as the conductors, and combines the advantages of the two conductors, thus having the advantages of better conductivity, higher strength and lower specific gravity than pure aluminum conductors. The copper clad steel wires and the copper clad aluminum wires are provided with same surface material, are characterized by no electrolytic corrosion, and substitutes for copper conductors, aluminum conductors and aluminum alloy conductors, thus being capable of reducing the price of the aerial insulation cable, saving copper material, reducing the cost by 5 to 20 percent, and saving copper resources.
Description
Technical field
The utility model relates to a kind of power cable, relates in particular to a kind of composite conductor aerial insulated cable.
Technical background
Aerial insulated cable requires core conductor to have characteristics such as good conductivity, tensile strength height, proportion is little usually.Aerial insulated cable generally uses copper conductor, aluminium conductor or aluminium alloy conductor as core conductor at present.Wherein, the aerial insulated cable good conductivity of copper conductor, but the price height, than great; The aerial insulated cable tensile strength of aluminium conductor is low, and conductivity is not so good; The aerial insulated cable poorly conductive of aluminium alloy conductor; The core conductor that also has steel, aluminium to mix, but conductivity is also not so good.Therefore demand urgently developing a kind ofly conduct electricity very well, intensity is high and moderate aerial insulated cable.
Summary of the invention
The utility model has overcome deficiency of the prior art, and a kind of composite conductor aerial insulated cable is provided, and it has good electrical conductivity, and has tensile strength height, in light weight, advantage that cost is low.
Realize that the above-mentioned purpose technical scheme is: a kind of composite conductor aerial insulated cable, a multilayer concentric circle of the section constitution of described cable structure, described cable comprises conductor, is coated on the screen and the insulating barrier of conductor periphery successively, described conductor comprises inner core and outer core, and described inner core constitutes by being positioned at one, seven of cable center or 19 isodiametric copper covered steel wires; Described outer core is made of many isodiametric copper-clad aluminum conductors, and holds around periphery in inner core in the mode of strand system.
Above-mentioned composite conductor aerial insulated cable, wherein,
When described inner core was made of a copper covered steel wire, this root copper covered steel wire was positioned at the center of cable;
When described inner core was made of seven copper covered steel wires, with the form of 1+6 strand system, promptly copper covered steel wire was positioned at the center of cable, and six roots of sensation copper covered steel wire is centered around the peripheral strand preparative layer that forms of this root copper covered steel wire;
When described inner core is made of 19 copper covered steel wires, form strand system with 1+6+12, promptly a copper covered steel wire is positioned at cable center, and six roots of sensation copper covered steel wire is centered around the peripheral first strand preparative layer that forms of this root copper covered steel wire, and 12 copper covered steel wires are centered around the peripheral second strand preparative layer that forms of the first strand preparative layer.
Above-mentioned composite conductor aerial insulated cable, wherein, described copper covered steel wire adopts the cladding method to make.
Above-mentioned composite conductor aerial insulated cable, wherein, one or more layers that described outer core is surrounded by many copper-clad aluminum conductors, and adopt circle line pressure type strand system or tile fragment shape not die mould strand system form.
Above-mentioned composite conductor aerial insulated cable, wherein, the soft attitude copper-clad aluminum conductor of described copper-clad aluminum conductor for adopting oxygen-free copper stripe and high-purity electrical aluminum rod to make.
The technical scheme of the type composite conductor aerial insulated cable that this practicality is new adopts copper covered steel wire, copper cover aluminum twisted wire as conductor, has gathered the advantage of two kinds of conductors, has good conductivity than fine aluminium conductor, intensity height, advantage that proportion is little.The Facing material of copper covered steel wire and copper-clad aluminum conductor is the same, characteristics such as no couple corrosion, and instead of copper conductor, aluminium conductor and aluminium alloy conductor can make the aerial insulated cable price reduce, save copper material, good conductivity, intensity height.Cost will reduce 5%-20%, has saved the copper resource.
Description of drawings
Fig. 1 is the sectional view of composite conductor aerial insulated cable of the present utility model.
Embodiment
Below by embodiment the utility model is described in further detail.
See also Fig. 1, composite conductor aerial insulated cable of the present utility model, multilayer concentric of the section constitution of this cable circle structure comprises conductor 1, is coated on the screen 2 and the insulating barrier 3 of conductor 1 periphery successively, wherein,
Conductor 1 comprises inner core 11 and outer core 12, and inner core 11 constitutes by being positioned at one, seven of cable center or 19 isodiametric copper covered steel wires, mainly is to make reinforcement usefulness, and certain conductivity is also arranged;
When inner core 11 was made of a copper covered steel wire, this root copper covered steel wire was positioned at the center of cable;
When inner core 11 was made of seven copper covered steel wires, with the form of 1+6 strand system, promptly copper covered steel wire was positioned at the center of cable, and six roots of sensation copper covered steel wire is centered around the peripheral strand preparative layer that forms of this root copper covered steel wire;
When inner core 11 is made of 19 copper covered steel wires, form strand system with 1+6+12, promptly a copper covered steel wire is positioned at cable center, and six roots of sensation copper covered steel wire is centered around the peripheral first strand preparative layer that forms of this root copper covered steel wire, and 12 copper covered steel wires are centered around the peripheral second strand preparative layer that forms of the first strand preparative layer;
Outer core 12 is made of many isodiametric copper-clad aluminum conductors, and holds around periphery in inner core 11 in the mode of strand system; One or more layers that outer core 12 is surrounded by many copper-clad aluminum conductors, and adopt circle line pressure type strand system or tile fragment shape not die mould strand system form.
Composite conductor aerial insulated cable of the present utility model, composite conductor wherein is to adopt copper covered steel wire of being made by the cladding method and the soft attitude copper-clad aluminum conductor that adopts oxygen-free copper stripe and high-purity electrical aluminum rod to make, copper covered steel wire wherein has the intensity height, the copper layer is even, fine and close, characteristics such as corrosion resistance and good, all environmental protection of product and technology; Rather than with electroplating the copper covered steel wire that legal system is done, also may there be residual bath corrosion in the performance less stable, and useful life is influential.Composite conductor aerial insulated cable of the present utility model adopts copper covered steel wire, copper cover aluminum twisted wire as conductor, has gathered the advantage of two kinds of conductors, has good conductivity than fine aluminium conductor, intensity height, advantage that proportion is little.The Facing material of copper covered steel wire and copper-clad aluminum conductor is the same, characteristics such as no couple corrosion, and instead of copper conductor, aluminium conductor and aluminium alloy conductor can make the aerial insulated cable price reduce, save copper material, good conductivity, intensity height.Cost will reduce 5%-20%, has saved the copper resource.
With the conductor nominal cross be 150/35 square millimeter be example, the copper covered steel wire of 7 gangs of 2.5mm (conductance 21%), the copper-clad aluminum conductor of 30 gangs of 2.5mm (cross section ratio: 0.15/0.85, proportion 3.63g/cm
3), be compared as follows table with copper, aluminium, aluminium alloy, the steel core aluminium conductor of same specification:
| Sequence number | Conductor material | Conductor nominal cross/mm 2 | 20 degree conductor resistances are not more than/Ω/mm | The conductor pull-off force is not less than/N |
| 1 | Copper cover aluminum/copper covered steel | 150/35 | 0.178 | 56450 |
| 2 | Copper | 150 | 0.128 | 49505 |
| 3 | Aluminium | 150 | 0.206 | 21033 |
| 4 | Aluminium alloy | 150 | 0.239 | 37706 |
| 5 | Aluminium/steel | 150/35 | 0.205 | 55910 |
As can be known, sequence number 1 is the composite conductor that adopts in the composite conductor aerial insulated cable of the present utility model from table, and sequence number 2 is the copper conductor that the aerial insulated cable of prior art adopts; Under the composite conductor condition identical with the copper conductor cross section, can calculate from resistance, the conductivity of composite conductor only is 72% of copper conductor, but the length of copper-clad aluminum conductor is that (copper proportion is 8.89g/cm for 2.5 times of copper cash
3); If conductivity is identical, promptly resistance is the same, and the length of copper-clad aluminum conductor is 1.72 times of copper cash, and cable all is to pay by length, as long as copper and aluminium have certain price differential, composite conductor has tangible price advantage.
Copper covered steel wire mainly plays booster action, and certain conductivity is also arranged, and the copper layer is even, fine and close, corrosion resistance and good, and cost is lower.As can be known, pull-off force is the highest, can improve the fail safe of aerial cable, comprises temperature tolerance and fatigue resistance, also can increase the tower distance, reduces cost from table.
Sequence number 3-5 is the conductor based on aluminium, and resistance is all bigger, and it is also on the low side that intensity has, and it is little to be suitable for transmission capacity, requires not too high occasion.Available fine copper alclad line substitutes aluminum steel or aluminium alloy wire, and intensity is similar with aluminium alloy wire, and conductivity is better than pure aluminum wire.Big in transmission capacity, when wanting to save cost again, adopt composite conductor that remarkable advantages is arranged.
Comprehensively above-mentioned, composite conductor aerial insulated cable resulting cost of the present utility model will reduce 5%--20%, has also saved the copper resource.
Above execution mode has been described in detail the utility model, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details in the execution mode should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (5)
1. composite conductor aerial insulated cable, a multilayer concentric circle of the section constitution of described cable structure, described cable comprises conductor, is coated on the screen and the insulating barrier of conductor periphery successively, it is characterized in that, described conductor comprises inner core and outer core, and described inner core constitutes by being positioned at one, seven of cable center or 19 isodiametric copper covered steel wires; Described outer core is made of many isodiametric copper-clad aluminum conductors, and holds around periphery in inner core in the mode of strand system.
2. composite conductor aerial insulated cable according to claim 1 is characterized in that,
When described inner core was made of a copper covered steel wire, this root copper covered steel wire was positioned at the center of cable;
When described inner core was made of seven copper covered steel wires, with the form of 1+6 strand system, promptly copper covered steel wire was positioned at the center of cable, and six roots of sensation copper covered steel wire is centered around the peripheral strand preparative layer that forms of this root copper covered steel wire;
When described inner core is made of 19 copper covered steel wires, form strand system with 1+6+12, promptly a copper covered steel wire is positioned at cable center, and six roots of sensation copper covered steel wire is centered around the peripheral first strand preparative layer that forms of this root copper covered steel wire, and 12 copper covered steel wires are centered around the peripheral second strand preparative layer that forms of the first strand preparative layer.
3. composite conductor aerial insulated cable according to claim 1 and 2 is characterized in that, described copper covered steel wire adopts the cladding method to make.
4. composite conductor aerial insulated cable according to claim 1 is characterized in that, one or more layers that described outer core is surrounded by many copper-clad aluminum conductors, and adopt circle line pressure type strand system or tile fragment shape not die mould strand system form.
5. according to claim 1 or 4 described composite conductor aerial insulated cables, it is characterized in that the soft attitude copper-clad aluminum conductor of described copper-clad aluminum conductor for adopting oxygen-free copper stripe and high-purity electrical aluminum rod to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202088223U CN201527838U (en) | 2009-09-17 | 2009-09-17 | Composite-conductor aerial insulation cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202088223U CN201527838U (en) | 2009-09-17 | 2009-09-17 | Composite-conductor aerial insulation cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527838U true CN201527838U (en) | 2010-07-14 |
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ID=42519121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202088223U Expired - Fee Related CN201527838U (en) | 2009-09-17 | 2009-09-17 | Composite-conductor aerial insulation cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201527838U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364584A (en) * | 2011-10-25 | 2012-02-29 | 江苏亨通线缆科技有限公司 | Cutthrough grounding cable applied in railway signal system |
| CN103337284A (en) * | 2013-06-21 | 2013-10-02 | 无锡市群星线缆有限公司 | Coaxial cable for moving occasion |
| CN103383879A (en) * | 2012-05-06 | 2013-11-06 | 河南科信电缆有限公司 | Reinforced optical fiber composite high-temperature-resistant overhead insulating cable |
| CN104658661A (en) * | 2015-02-05 | 2015-05-27 | 江苏藤仓亨通光电有限公司 | Copper-coated steel core copper stranded wire |
| CN110767345A (en) * | 2019-09-23 | 2020-02-07 | 国网辽宁省电力有限公司丹东供电公司 | Light-weight large-section conductor and manufacturing method thereof |
-
2009
- 2009-09-17 CN CN2009202088223U patent/CN201527838U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364584A (en) * | 2011-10-25 | 2012-02-29 | 江苏亨通线缆科技有限公司 | Cutthrough grounding cable applied in railway signal system |
| CN102364584B (en) * | 2011-10-25 | 2013-06-05 | 江苏亨通线缆科技有限公司 | Cutthrough grounding cable applied in railway signal system |
| CN103383879A (en) * | 2012-05-06 | 2013-11-06 | 河南科信电缆有限公司 | Reinforced optical fiber composite high-temperature-resistant overhead insulating cable |
| CN103337284A (en) * | 2013-06-21 | 2013-10-02 | 无锡市群星线缆有限公司 | Coaxial cable for moving occasion |
| CN104658661A (en) * | 2015-02-05 | 2015-05-27 | 江苏藤仓亨通光电有限公司 | Copper-coated steel core copper stranded wire |
| CN110767345A (en) * | 2019-09-23 | 2020-02-07 | 国网辽宁省电力有限公司丹东供电公司 | Light-weight large-section conductor and manufacturing method thereof |
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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: 20100714 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |