CN201138581Y - Aluminum stranded wire of large capacity - Google Patents
Aluminum stranded wire of large capacity Download PDFInfo
- Publication number
- CN201138581Y CN201138581Y CNU2007201992300U CN200720199230U CN201138581Y CN 201138581 Y CN201138581 Y CN 201138581Y CN U2007201992300 U CNU2007201992300 U CN U2007201992300U CN 200720199230 U CN200720199230 U CN 200720199230U CN 201138581 Y CN201138581 Y CN 201138581Y
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- Prior art keywords
- aluminium stranded
- heart yearn
- stranded conductor
- aluminum stranded
- conductor
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Abstract
The utility model discloses an aluminum stranded wire with large capacity which includes a plurality of aluminum stranded wires and a core wire; a plurality of aluminum stranded wires are arranged by surrounding the core wire on the length direction of the core wire; the core wire is a compound core; the cross section of each aluminum stranded wire is a ladder shape or a sector shape; a plurality of aluminum stranded wires are arranged by closely snuggling; the surface snuggling with the aluminum stranded wire of the aluminum stranded wire is snuggled with the peripheral surface of the core wire; as the design is adopted by the utility model, a plurality of aluminum stranded wires in a certain cross section area are led to be closely arranged for obtaining a largest cross section area, thus increasing the conductive area, improving the transmission capacity and obtaining a largest ampacity under the same condition.
Description
Technical field
The utility model relates to electric power transmission ﹠ distribution field, relates in particular to a kind of jumbo aluminium stranded conductor.
Background technology
Along with the develop rapidly of electric load in recent years, electricity needs significantly rises, and the lead that requires to bear the electric power conveying can be carried more electric energy.In a lot of blocks, city original grid power transmission circuit near in addition surpassed the limit allowable of design.
Be illustrated in figure 1 as ACSR steel reinforced aluminium conductor common in the prior art, comprise the core bar 1 as steel core, and be looped around the outside, many cross sections are circular aluminium stranded conductor 2, through distortion and plastics hoop 3 back formation one steel reinforced aluminium conductor in the same way.According to conventional way, old circuit (as the ACSR steel reinforced aluminium conductor) should be removed, lay the long-pending new line in heavy in section more or use heat-resisting wire instead.But because the house is intensive in the block, city, gather like the mushrooms after rain in the development zone, newly-built circuit is often reconstructed overlong time (then building Xin Ta in the former address because of old circuit need have a power failure to remove), the improvement expenses height is (because of iron tower is rebuild, again discharge lead), grade more than uncertain factor influences during the transformation causes newly, reconstruction project can't be finished on schedule; As adopt the technical scheme of changing heat-resisting wire, then have the higher and lead of line loss over the ground sag deadly defect such as can't guarantee.
Therefore, those skilled in the art be devoted to develop always a kind of ampacity big, from heavy and light, can satisfy the novel aluminum twisted wire of power network development requirement.
The utility model content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provide a kind of ampacity big, from the big capacity aluminium stranded conductor of heavy and light.
For achieving the above object, the utility model provides a kind of big capacity aluminium stranded conductor, many described aluminium stranded conductors on the length direction of described heart yearn around described heart yearn setting; Described heart yearn is a composite core; The cross section of each described aluminium stranded conductor is ladder type or covering of the fan type, the arrangement that closely reclines of many described aluminium stranded conductors, and described aluminium stranded conductor reclines near the face of described heart yearn and the outer peripheral face of described heart yearn.
Preferably, the upper and lower limit radian of described covering of the fan type is identical with the radian of described heart yearn.
Preferably, each described aluminium stranded conductor is all through annealing.
Preferably, described heart yearn is a carbon fiber complex core.
Preferably, each described aluminium stranded conductor is arranged as more than one concentric ring-like array
The utility model makes many aluminium stranded conductors in the certain cross-sectional area be able to tight arrangement owing to adopted above-mentioned design, obtains maximum cross-sectional area, to obtain maximum ampacity under the same conditions.
Aluminium stranded conductor of the present utility model is owing to adopted fan-shaped single line concentric lay conductor structure, only need on original circuit, to change lead of the present utility model, just can satisfy the requirement that improves current carrying capacity of conductor, avoid the extensive reconstruction of original circuit simultaneously, make corresponding shortening of duration.
Aluminium stranded conductor of the present utility model is compared with traditional ACSR steel reinforced aluminium conductor structure:
(1) presses trapezoidal aluminum steel and replaced traditional circular aluminum steel, make that the ACCC lead Duos 20%～30% with the aluminium amount than steel reinforced aluminium conductor under same cross-sectional, increased conductive area;
(2) fan-shaped single line concentric lay lead has adopted the aluminum steel of annealing process, and is higher than aluminium Baogang core aluminum stranded wire conductance, improved transmission capacity, and transmission capacity brings up to 63% by original 61%.
On the other hand, under the requirement of satisfying same transmission capacity, heart yearn is that the corresponding other types conductor cross-section in the cross section of carbon fiber lead is little, generally can reduce 30%, and the cross section minimizing then can correspondingly make bears stressed corresponding the reducing of iron tower of conductor load, correspondingly can reduce iron tower weight, because carbon fiber wire tension weight ratio is big, its sag is little than other leads, and corresponding iron tower height can suitably be reduced simultaneously, the corresponding minimizing of basis materials, thus whole project cost is reduced.
Be described further below with reference to the technique effect of accompanying drawing, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
Description of drawings
Fig. 1 is the cross-sectional structure schematic diagram of steel reinforced aluminium conductor in the prior art;
Fig. 2 is the cross-sectional structure schematic diagram of the utility model one specific embodiment;
Fig. 3 is the cross-sectional structure schematic diagram of single aluminum conductor among Fig. 2.
Embodiment
Be illustrated in figure 2 as big capacity aluminium stranded conductor one specific embodiment of the present utility model, big capacity aluminium stranded conductor of the present utility model comprises many aluminium stranded conductors 2 and a heart yearn 1, and heart yearn 1 is a carbon fiber complex core.2 one-tenth ring-like arrays of many aluminium stranded conductors, heart yearn 1 are positioned at ring-like array central authorities.The cross section of each aluminium stranded conductor 2 is a ladder type, the arrangement that closely reclines between the many aluminium stranded conductors 2, overcoat one plastics hoop 3.In the present embodiment, each aluminium stranded conductor 2 is arranged in two concentric ring-like arrays.As shown in Figure 3, the little one-tenth isocentric circular arc in the upper and lower limit of the cross section of each aluminium stranded conductor 2 is so that the cross section of aluminium stranded conductor 2 forms a fan shaped cross section.
Aluminium stranded conductor 2 in the present embodiment is all handled through annealing process.
The utility model makes many aluminium stranded conductors in the certain cross-sectional area be able to tight arrangement owing to adopted above-mentioned design, obtains maximum cross-sectional area, to obtain maximum ampacity under the same conditions.
Aluminium stranded conductor of the present utility model is owing to adopted fan-shaped single line concentric lay conductor structure, only need on original circuit, to change lead of the present utility model, just can satisfy the requirement that improves current carrying capacity of conductor, avoid the extensive reconstruction of original circuit simultaneously, make corresponding shortening of duration.
Aluminium stranded conductor of the present utility model is compared with traditional ACSR steel reinforced aluminium conductor structure and is had the following advantages:
(1) presses trapezoidal aluminum steel and replaced traditional circular aluminum steel, make that the ACCC lead Duos 20%～30% with the aluminium amount than steel reinforced aluminium conductor under same cross-sectional, increased conductive area;
(2) fan-shaped single line concentric lay lead has adopted the aluminum steel of annealing process, and is higher than aluminium Baogang core aluminum stranded wire conductance, improved transmission capacity, and transmission capacity brings up to 63% by original 61%.
On the other hand, under the requirement of satisfying same transmission capacity, heart yearn is that the corresponding other types conductor cross-section in the cross section of carbon fiber lead is little, generally can reduce 30%, and the cross section minimizing then can correspondingly make bears stressed corresponding the reducing of iron tower of conductor load, correspondingly can reduce iron tower weight, because carbon fiber wire tension weight ratio is big, its sag is little than other leads, and corresponding iron tower height can suitably be reduced simultaneously, the corresponding minimizing of basis materials, thus whole project cost is reduced.
In sum, described in this specification is several preferred embodiment of the present utility model, and above embodiment is only unrestricted in order to the explanation the technical solution of the utility model.All technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within claim protection range of the present utility model.
Claims (5)
1, a kind of big capacity aluminium stranded conductor comprises many aluminium stranded conductors and a heart yearn; Many described aluminium stranded conductors on the length direction of described heart yearn around described heart yearn setting; Described heart yearn is a composite core; It is characterized in that: the cross section of each described aluminium stranded conductor is ladder type or covering of the fan type, the arrangement that closely reclines of many described aluminium stranded conductors, and described aluminium stranded conductor reclines near the face of described heart yearn and the outer peripheral face of described heart yearn.
2, big capacity aluminium stranded conductor as claimed in claim 1 is characterized in that: the upper and lower limit radian of described covering of the fan type is identical with the radian of described heart yearn.
3, big capacity aluminium stranded conductor as claimed in claim 1 or 2, it is characterized in that: each described aluminium stranded conductor is all handled through annealing process.
4, big capacity aluminium stranded conductor as claimed in claim 1 or 2, it is characterized in that: described heart yearn is a carbon fiber complex core.
5, big capacity aluminium stranded conductor as claimed in claim 1 or 2 is characterized in that: each described aluminium stranded conductor is arranged as more than one concentric ring-like array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201992300U CN201138581Y (en) | 2007-12-13 | 2007-12-13 | Aluminum stranded wire of large capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201992300U CN201138581Y (en) | 2007-12-13 | 2007-12-13 | Aluminum stranded wire of large capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138581Y true CN201138581Y (en) | 2008-10-22 |
Family
ID=40039262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201992300U Expired - Lifetime CN201138581Y (en) | 2007-12-13 | 2007-12-13 | Aluminum stranded wire of large capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138581Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103902A (en) * | 2011-01-27 | 2011-06-22 | 南京诺尔泰复合材料设备制造有限公司 | Cable with composite carbon fiber stranded wire reinforced core for power transmission line and manufacturing method thereof |
-
2007
- 2007-12-13 CN CNU2007201992300U patent/CN201138581Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103902A (en) * | 2011-01-27 | 2011-06-22 | 南京诺尔泰复合材料设备制造有限公司 | Cable with composite carbon fiber stranded wire reinforced core for power transmission line and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |
|
| CX01 | Expiry of patent term |