CN202796201U - Composite core for overhead transmission line - Google Patents
Composite core for overhead transmission line Download PDFInfo
- Publication number
- CN202796201U CN202796201U CN 201220360625 CN201220360625U CN202796201U CN 202796201 U CN202796201 U CN 202796201U CN 201220360625 CN201220360625 CN 201220360625 CN 201220360625 U CN201220360625 U CN 201220360625U CN 202796201 U CN202796201 U CN 202796201U
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- CN
- China
- Prior art keywords
- composite core
- core
- fiber
- transmission line
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a composite core for an overhead transmission line and the composite core is formed by twisting a plurality of threads of single cores. Every thread of single core comprises fiber arranged in the center and insulation lapped outside of the fiber. According to the twisted composite core provided by the utility model, a bending performance of a single solid composite core can be improved, safety factor can be increased, holding force borne by a single core rod in a radial direction is improved and the single core rod is formed by pultrusion of bundles of original parallel fiber, an external-diameter specification scope can be enlarged, use place limitation is reduced and the composite core is suitable for market development.
Description
Technical field
The utility model relates to a kind of overhead transmission line composite core.
Background technology
At present, tencel strengthens resin-based composite core aerial condutor and has realized production domesticization, and high-strength energy-saving type compound wire has possessed good import substitution effect, brings epoch-making meaning for country, local each main electric power enterprise.Along with the use of compound wire on engineering, also found simultaneously some inevitable defective: the one, composite core is the fibre-reinforced single structure of resin-based, minimum bending radius is about 55 times of diameters, when degree of crook is excessive, might cause plug damage even fracture, thereby increase the difficulty of construction such as compound wire unwrapping wire; The 2nd, a composite core rod is only arranged in the existing compound wire, damage tolerance is lower, and longitudinal stress is easy to crack, easily causes potential safety hazard; The 3rd, the composite core rod of now having developed can realize that industrial composite core diameter maximum can reach about 11mm, and large cross over, the heavy icing area area, it is higher when drawing anharmonic ratio to require wire to have, single compound wire has been difficult to satisfy the needs of engineering.
The utility model content
The purpose of this utility model is to solve the problem that prior art exists, and provides a kind of good bending property, the overhead transmission line composite core that coefficient of safety is high.
The technical scheme that realizes the utility model purpose is a kind of overhead transmission line composite core, and core is stranded forms by the multiply list for this composite core; Per share single core comprises the fiber that is positioned at the center and wrapped in the insulation of fiber outside.
Clearance for insulation is wrapped outside at fiber, and clearance rate is 30-50%, and lapping angle is 45 ° ± 5 °.
Adopted technique scheme, the utlity model has following beneficial effect: strand type composite core of the present utility model can be improved the bending property of single real core composite core; Simultaneously can increase coefficient of safety, improve by the fiber of original parallel bunchy and solidify the grip pressure power that the single plug that forms radially bears through pultrusion; Moreover can expanded outer diameter specification limit, reduce the limitation of field of employment, adapt to the space of market development.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and the below is described in further detail the utility model, wherein according to specific embodiment also by reference to the accompanying drawings
Fig. 1 is structural representation of the present utility model.
Attached number in the figure is:
Single core 1, fiber 11, insulation 12.
Embodiment
(embodiment 1)
See Fig. 1, a kind of overhead transmission line composite core of present embodiment, this composite core is by single core 1 stranded the forming of multiply; Per share single core 1 comprises the fiber 11 that is positioned at the center and wrapped in the insulation 12 of fiber 11 outsides.11 gaps of insulating are wrapped in fiber 11 outsides, and clearance rate is 30-50%, and lapping angle is 45 ° ± 5 °.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (2)
1. overhead transmission line composite core is characterized in that: this composite core is by stranded the forming of the single core (1) of multiply; Per share single core (1) comprises the fiber (11) that is positioned at the center and wrapped in the outside insulation (12) of fiber (11).
2. a kind of overhead transmission line composite core according to claim 1 is characterized in that: insulation (12) gap is wrapped, and clearance rate is 30-50% in fiber (11) outside, and lapping angle is 45 ° ± 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360625 CN202796201U (en) | 2012-07-25 | 2012-07-25 | Composite core for overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360625 CN202796201U (en) | 2012-07-25 | 2012-07-25 | Composite core for overhead transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796201U true CN202796201U (en) | 2013-03-13 |
Family
ID=47823414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220360625 Expired - Fee Related CN202796201U (en) | 2012-07-25 | 2012-07-25 | Composite core for overhead transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796201U (en) |
-
2012
- 2012-07-25 CN CN 201220360625 patent/CN202796201U/en not_active Expired - Fee Related
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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: 20130313 Termination date: 20210725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |