CN203475924U - Compound insulation cross arm for power transmission line - Google Patents
Compound insulation cross arm for power transmission line Download PDFInfo
- Publication number
- CN203475924U CN203475924U CN201320511557.2U CN201320511557U CN203475924U CN 203475924 U CN203475924 U CN 203475924U CN 201320511557 U CN201320511557 U CN 201320511557U CN 203475924 U CN203475924 U CN 203475924U
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- CN
- China
- Prior art keywords
- transmission line
- compound insulation
- insulating cylinder
- mucilage binding
- hollow compound
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- Expired - Fee Related
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Abstract
The utility model discloses a compound insulation cross arm for a power transmission line. The compound insulation cross arm comprises a hollow conical compound insulation cylinder, the hollow conical compound insulation cylinder is formed by winding of glass fiber filament resin, the hollow conical compound insulation cylinder is filled with low-density macromolecule insulating materials, and a set of air bags is arranged in the low-density macromolecule insulating materials; a metal connection support is arranged at the bottom of the hollow conical compound insulation cylinder in a cementing mode, and a conical top support is arranged on the top of the hollow conical compound insulation cylinder in a cementing mode; a silicone rubber skirt sleeve is arranged on the outer surface of the hollow conical compound insulation cylinder in an integrated mould pressing mode. The compound insulation cross arm is high in mechanical strength, excellent in electrical insulation performance, dampproof performance and weathering aging prevention performance and capable of improving pollution flashover prevention level, shortening insulation distance between phases, reducing tower height and saving cost when being used on the power transmission line.
Description
Technical field
The utility model relates to a kind of insulator crossarm, specifically a kind of for 35kV ~ 500kV ultra-high-tension power transmission line, integrates the used for transmission line composite insulation cross-arm of the supporting role of head tower iron cross arm and the insulating effect of insulator.
Background technology
The critical piece that forms built on stilts electric line has: wire, lightning conducter (abbreviation lightning conducter), insulator, shaft tower, bracing wire and basis, ground device etc., and Fig. 1 is typical high pressure overhead power line figure, in figure, the 1st, lightning conducter, the 2nd, wire, the 3rd, tower head, the 4th, insulator, the 5th, tower body, the 6th, column foot, the 7th, down conductor, the 8th, ground device, the 9th, basis, the 10th, conductor spacer.The insulator relating in Fig. 1 is mainly suspension type (glass or porcelain) insulator and composite insulator, and they all exist some problems and deficiency, have influence on the safe operation of power circuit, also causes power circuit construction cost to improve.For example suspended porcelain insulator and composite insulator are considered windage yaw because of need, therefore phase spacing is large, circuit corridor is wide, need hitch point be set longer iron cross arm, and lightning conducter installation site is also relatively high.
In recent years, a kind of composite insulation cross arm starts to put into operation, and it can arbitrarily angledly be installed, and has replaced the iron cross arm stretching out on insulator and head tower.But exist, flexural strength is low, insulating properties are poor, the problems such as fracture accident easily occur, and therefore, in the ultra-high-tension power transmission line more than 110kV, is not used widely.
Summary of the invention
The purpose of this utility model is to provide a kind of high-intensity used for transmission line composite insulation cross-arm, this insulator crossarm is mainly used in 35kV ~ 500kV transmission line of electricity, integrate the supporting role of head tower iron cross arm and the insulating effect of insulator, greatly improved integral bending and insulating properties.
The purpose of this utility model is achieved through the following technical solutions:
A kind of used for transmission line composite insulation cross-arm, it is characterized in that: this insulator crossarm comprises that taper Hollow Compound insulating cylinder, described taper Hollow Compound insulating cylinder are formed by glass fiber Resin Wound, in taper Hollow Compound insulating cylinder inside, be filled with low-density insulating polymeric material, in low-density insulating polymeric material, be provided with one group of air bag; In taper Hollow Compound insulating cylinder bottom, mucilage binding has metal connecting support seat, and at taper Hollow Compound insulating cylinder top, mucilage binding has cone top part bearing; At taper Hollow Compound insulating cylinder external surface integral die, there is silicon rubber skirt cover.
In the utility model, on cone top part bearing, be provided with wire clamp draw-in groove.Metal connecting support seat and taper Hollow Compound insulating cylinder are inside and outside mucilage binding formula, and the mucilage binding face height of inner limiting card platform is greater than outside limiting card platform, preferred, and the mucilage binding height H 2 of inner limiting card platform and the mucilage binding height H 1 of outside limiting card platform are than being 1.2 ~ 2.Cone top part bearing and taper Hollow Compound insulating cylinder are also inside and outside mucilage binding formula.Described taper Hollow Compound insulating cylinder also can be formed by glass fabric Resin Wound.
The utlity model has mechanical strength high, the advantages such as electrical insulation properties, moistureproof anti-weathering aging function admirable.For high pressure overhead power line, integrate the supporting role of head tower iron cross arm and the insulating effect of insulator, greatly improved integral bending and insulating properties; Can also be able to improve anti-soil sudden strain of a muscle level, dwindle phase insulation distance, reduce shaft tower height, save overhead line structures steel and corridor land used, thereby reduced transmission line of electricity system engineering cost.
The utility model is applicable on 35kV ~ 500kV ultra-high-tension power transmission line.
Accompanying drawing explanation
Fig. 1 is the typical high pressure overhead power line figure of tradition.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the mucilage binding schematic diagram of metal connecting support seat in bottom in the utility model.
The specific embodiment
A kind of used for transmission line composite insulation cross-arm described in the utility model, see Fig. 2 and Fig. 3, this insulator crossarm comprises taper Hollow Compound insulating cylinder 14, the taper Hollow Compound insulating cylinder (son) of taper Hollow Compound insulating cylinder 14 for being formed by glass fiber (cloth) Resin Wound.In taper Hollow Compound insulating cylinder bottom, mucilage binding has metal connecting support seat 11, and at taper Hollow Compound insulating cylinder top, mucilage binding has cone top part bearing 17.Metal connecting support seat and taper Hollow Compound insulating cylinder are inside and outside mucilage binding formula, the mucilage binding face height of inner limiting card platform 111 is greater than outside limiting card platform 112, the mucilage binding height H 2 of inner limiting card platform and the mucilage binding height H 1 of outside limiting card platform are than being 2, do not affect the dry arcing distance of external insulation, binder 12 adopts high strength epoxy resin, at metal connecting support seat 11 flange faces, be also provided with several installing holes, use with head tower is fixing.Cone top part bearing 17 is also inside and outside mucilage binding formula, and inside and outside mucilage binding beguine is adjusted according to load variations.Owing to adopting inside and outside mucilage binding mode, product integral bending (under same cross-sectional) is greatly improved, and has overcome mucilage binding face problem easy to crack under heavy load, can meet arbitrarily angled installation.
After metal connecting support seat 11, cone top part bearing 17 and taper Hollow Compound insulating cylinder 14 mucilage bindings, the silicon rubber skirt of external surface integral die overlaps 13, can greatly increase the anti-pollution flashover ability of target product external surface.
For preventing that the creeping discharge under high voltage from appearring in inner surface, according to the cavity volume of taper Hollow Compound insulating cylinder 14, at inner chamber, first place several hollow balloons 16, then vacuum filling low-density insulating polymeric material 15.By gasbag pressure, change, compensation, because of the insulation materials volumetric change that variations in temperature causes, makes inner surface be insulated all the time material and covers completely, guarantees that flashover does not occur inner surface when long-term operation.
For simplifying wire, fix, on cone top part bearing 17, be also directly provided with a semicircular line mounting board groove, not only reduce the moment of wire to top, can also reduce extra gold utensil expense, reduced the use cost of circuit.
The utility model mechanical strength is high, electrical insulation properties, moistureproof anti-weathering aging function admirable.For high pressure overhead power line, can improve anti-soil sudden strain of a muscle level, dwindle phase insulation distance, reduce shaft tower height, save overhead line structures steel and corridor land used, reduced transmission line of electricity cost.
Claims (5)
1. a used for transmission line composite insulation cross-arm, it is characterized in that: this insulator crossarm comprises that taper Hollow Compound insulating cylinder (14), described taper Hollow Compound insulating cylinder (14) are formed by glass fiber Resin Wound, in taper Hollow Compound insulating cylinder (14) inside, be filled with low-density insulating polymeric material (15), in low-density insulating polymeric material (15), be provided with one group of air bag (16); In taper Hollow Compound insulating cylinder (14) bottom, mucilage binding has metal connecting support seat (11), and at taper Hollow Compound insulating cylinder (14) top, mucilage binding has cone top part bearing (17); At taper Hollow Compound insulating cylinder (14) external surface integral die, there is silicon rubber skirt cover (13).
2. used for transmission line composite insulation cross-arm according to claim 1, is characterized in that: on cone top part bearing (17), be provided with wire clamp draw-in groove.
3. used for transmission line composite insulation cross-arm according to claim 1, it is characterized in that: metal connecting support seat (11) is inside and outside mucilage binding formula with taper Hollow Compound insulating cylinder (14), metal connecting support seat (11) comprises inner limiting card platform (111) and outside limiting card platform (112), and the mucilage binding face height of inner limiting card platform (111) is greater than outside limiting card platform (112).
4. used for transmission line composite insulation cross-arm according to claim 3, is characterized in that: the mucilage binding height H 2 of inner limiting card platform (111) and the mucilage binding height H 1 of outside limiting card platform (112) are than being 1.2 ~ 2.
5. used for transmission line composite insulation cross-arm according to claim 3, is characterized in that: cone top part bearing (17) is inside and outside mucilage binding formula with taper Hollow Compound insulating cylinder (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511557.2U CN203475924U (en) | 2013-08-21 | 2013-08-21 | Compound insulation cross arm for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511557.2U CN203475924U (en) | 2013-08-21 | 2013-08-21 | Compound insulation cross arm for power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203475924U true CN203475924U (en) | 2014-03-12 |
Family
ID=50224278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320511557.2U Expired - Fee Related CN203475924U (en) | 2013-08-21 | 2013-08-21 | Compound insulation cross arm for power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203475924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165367A1 (en) * | 2015-04-14 | 2016-10-20 | 王伟 | Composite insulated crossarm and pillar with epoxy glass fiber tube filled with hollow insulation bags |
| CN106158166A (en) * | 2015-04-14 | 2016-11-23 | 王伟 | Light-duty compound cross-arm and the pillar filling solid insulator it is interrupted in epoxy fiberglass tubes |
-
2013
- 2013-08-21 CN CN201320511557.2U patent/CN203475924U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165367A1 (en) * | 2015-04-14 | 2016-10-20 | 王伟 | Composite insulated crossarm and pillar with epoxy glass fiber tube filled with hollow insulation bags |
| CN106158166A (en) * | 2015-04-14 | 2016-11-23 | 王伟 | Light-duty compound cross-arm and the pillar filling solid insulator it is interrupted in epoxy fiberglass tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140312 Termination date: 20210821 |