CN204696630U - 110kV dry type silicone rubber for cable terminal - Google Patents
110kV dry type silicone rubber for cable terminal Download PDFInfo
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- CN204696630U CN204696630U CN201520269684.5U CN201520269684U CN204696630U CN 204696630 U CN204696630 U CN 204696630U CN 201520269684 U CN201520269684 U CN 201520269684U CN 204696630 U CN204696630 U CN 204696630U
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Abstract
The utility model discloses a kind of 110kV dry type silicone rubber for cable terminal, power transmission and transformation power delivery loop is jointly formed with high-tension cable, electric equipment, it comprises the terminal body of stress cone, hollow, described terminal body is full of and is sheathed on described high-tension cable ordinatedly, one end of described terminal body forms stress tapering, described stress cone is arranged in described stress tapering, the sidewall of described terminal body outwards protrudes out and forms multiple full skirt, and described terminal body, full skirt and described stress cone are formed in one structure.The utility model 110kV dry type silicone rubber for cable terminal structure is simple, one-body molded, sealing and electric property good.
Description
Technical field
The utility model relates to a kind of high voltage power cable annex, particularly relates to a kind of 110kV dry type silicone rubber for cable terminal.
Background technology
Along with the development of electric utility, the power delivery of the long distance of high voltage, the input of outdoor high-voltage electrical network and the erection of cable machinery grow with each passing day, and in construction of high voltage cable, mostly all to use various electric cable accessories, along with the application of these annexes is more and more extensive, correspondingly, also more and more higher to the requirement of these annex fail safes.
The junction of cable and electric equipment out of doors, requisite annex is cable connection terminal, and existing connection terminal is all filling type composite bushing terminal, porcelain bushing type outdoor terminal, and as shown in Figure 1, it is filling type composite bushing terminal 200.Use composite bushing 201 during installation and fill insulating oil 202, prefabricated stress cone 203 is set on cable.The feature of this structure is that stress cone 203 is directly enclosed within cable insulation, the stress between the pressure guarantee cable insulation of dependence stress cone 203 and insulating oil material on interface and electrical strength.Although this structure is simple, there is following problem: owing to adopting Split type structure, have bubble-discharge, meanwhile, device for filling oil, aging or when having leakage in running, there is greater risk, and product is not suitable on inclination or gantry tower.And stress cone 203 is immersed in oil for a long time, easily form an air gap, and then form conductive channel, thus add annex and the breakdown danger of cable; Filling type compound sleeve cast terminal 200, in installation and use procedure, is unfavorable for first-aid repair construction, and after permanent operation, by the reduction of oil pressure, thus reduces electrical strength; Product aging, expand with heat and contract with cold, " breathing " phenomenon etc. of material causes leakage of oil and has an accident.And porcelain bushing type outdoor terminal Heavy Weight, there is no hydrophobicity and hydrophobicity migration performance, product easily produces filth and cleaning difficulty, and when product has an accident, the secondary injury causing equipment, personnel blown up by ceramics.
Therefore, be necessary to provide that a kind of structure is simple, integral type, lightweight, sealing and the good cable connection terminal of electric property.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, integral type is without the good cable connection terminal of interface, sealing and electric property.
To achieve these goals, the utility model provides a kind of 110kV dry type silicone rubber for cable terminal, be connected between high-tension cable and electric equipment, comprise stress cone and the terminal body in hollow structure, be sheathed on described high-tension cable to described terminal body interference fit, the inside, one end of described terminal body forms stress tapering, described stress cone is arranged within described stress tapering, the sidewall convex of described terminal body forms multiple full skirt, and described terminal body, full skirt and described stress cone are formed in one structure.
Compared with prior art, because described terminal body interference fit is sheathed on described high-tension cable by the utility model, therefore described terminal body has good enclasping force to described high-tension cable, serves the effect of sealed damp-proof; Again by arranging stress cone within described stress tapering, geometry stress evacuating method is used to guarantee that the electric field of the shielding cut-off part of described high-tension cable is disperseed, and can not puncture because of local field strength, therefore the utility model has good electric property; Described terminal body, full skirt and described stress cone are formed in one structure, and structure is simple and without interface, improve sealing and the electric property of self further.
Preferably, described full skirt has a top and below, and the central shaft of described top and described terminal body is 107 °, and described central shaft that is following and described terminal body is 81 °.By the angle between the central shaft of described top and following and described terminal body is set to 107 ° and 81 ° respectively, increases the creepage distance that described high-tension cable connects prefabricated terminal tolerance insulation further, enhance its antifouling property.
Preferably, described terminal body is the integrative-structure be made up of silastic material.By adopting silastic material, utilizing the rebound performance of its uniqueness, reaching good contractive effect, guaranteeing interference fit enclasping force, reach sealed damp-proof effect and guarantee good electric property.
Preferably, the quantity of described full skirt is 22.
Preferably, one end of described terminal body is provided with 2 road reinforcements, effectively strengthens the enclasping force of interference fit.
Accompanying drawing explanation
Fig. 1 is the profile of existing compound sleeve cast terminal.
Fig. 2 is the profile of the utility model 110kV dry type silicone rubber for cable terminal.
Embodiment
Below in conjunction with the Figure of description provided, description is made to preferred embodiment of the present utility model.
As shown in Figure 2, the utility model 110KV dry type silicone rubber for cable terminal 100 is connected between high-tension cable and electric equipment, comprises terminal body 1 and the stress cone 2 of in hollow structure 11.Be sheathed on described high-tension cable to described terminal body 1 interference fit; The inside, one end of described terminal body 1 forms stress tapering 12, and described stress cone 2 is arranged within described stress tapering 12.By arranging described stress cone 2 within described stress tapering 12, using geometry stress evacuating method to guarantee that the shielding cut-off part of described high-tension cable can not puncture because of local field strength, therefore there is good electric property.Described terminal body 1 is made up of silastic material, by adopting silastic material, utilizing the rebound performance of its uniqueness, reaching good contractive effect, guaranteeing the enclasping force with enough interference fit, reach sealed damp-proof effect and guarantee good electric property.Described terminal body 1, full skirt 13 and described stress cone 2 are formed in one structure, and structure is simple and without interface.
The sidewall of described terminal body 1 outwards protrudes out and forms multiple full skirt 13, its structure is by IV grade of filthy design, the quantity of full skirt 13 described in the utility model is 22, described full skirt 13 has an a top 13a and 13b below, angle between described top 13a and the central shaft of described terminal body 1 is 107 °, and the angle between described following 13b and the central shaft of described terminal body 1 is 81 °.By arranging described full skirt 13, increasing the creepage distance that described high-tension cable connects prefabricated terminal tolerance insulation, and enhancing its antifouling property.
One end of described terminal body 1 is provided with 2 road reinforcements 14, effectively strengthens the enclasping force of interference fit.
Described terminal body 1 interference fit is sheathed on described high-tension cable by the utility model, and therefore described terminal body 1 has good enclasping force to described high-tension cable, serves the effect of sealed damp-proof; Meanwhile, by arranging described full skirt 13, increasing the creepage distance that described high-tension cable connects prefabricated terminal tolerance insulation, enhancing its antifouling property; Again by arranging described stress cone 2 within described stress tapering 12, use geometry stress evacuating method to guarantee that the shielding cut-off part of high-tension cable can not puncture because of local field strength, therefore the utility model has good electric property; Described terminal body 1, full skirt 13 and described stress cone 2 are formed in one structure, and structure is simple and without interface, improve sealing and the electric property of self further.
Above disclosedly be only preferred embodiments of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (5)
1. a 110kV dry type silicone rubber for cable terminal, be connected between high-tension cable and electric equipment, it is characterized in that: comprise stress cone and the terminal body in hollow structure, be sheathed on described high-tension cable to described terminal body interference fit, the inside, one end of described terminal body forms stress tapering, described stress cone is arranged within described stress tapering, and the sidewall of described terminal body outwards protrudes out and forms multiple full skirt, and described terminal body, full skirt and described stress cone are formed in one structure.
2. 110kV dry type silicone rubber for cable terminal as claimed in claim 1, is characterized in that: described full skirt has a top and below, and the central shaft of described top and described terminal body is 107 °, and described central shaft that is following and described terminal body is 81 °.
3. 110kV dry type silicone rubber for cable terminal as claimed in claim 1, is characterized in that: described terminal body is the integrative-structure be made up of silastic material.
4. 110kV dry type silicone rubber for cable terminal as claimed in claim 1, is characterized in that: the quantity of described full skirt is 22.
5. 110kV dry type silicone rubber for cable terminal as claimed in claim 1, is characterized in that: one end of described terminal body is provided with the reinforcement that 2 roads have the enclasping force increasing interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269684.5U CN204696630U (en) | 2015-04-29 | 2015-04-29 | 110kV dry type silicone rubber for cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269684.5U CN204696630U (en) | 2015-04-29 | 2015-04-29 | 110kV dry type silicone rubber for cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204696630U true CN204696630U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520269684.5U Active CN204696630U (en) | 2015-04-29 | 2015-04-29 | 110kV dry type silicone rubber for cable terminal |
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| CN (1) | CN204696630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034531A (en) * | 2019-05-13 | 2019-07-19 | 上泰电气有限公司 | Novel combined cable accessory, Combined cable and preparation method thereof |
-
2015
- 2015-04-29 CN CN201520269684.5U patent/CN204696630U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034531A (en) * | 2019-05-13 | 2019-07-19 | 上泰电气有限公司 | Novel combined cable accessory, Combined cable and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |