CN202282598U - 110 KV composite dry type cable terminal - Google Patents
110 KV composite dry type cable terminal Download PDFInfo
- Publication number
- CN202282598U CN202282598U CN2011204403446U CN201120440344U CN202282598U CN 202282598 U CN202282598 U CN 202282598U CN 2011204403446 U CN2011204403446 U CN 2011204403446U CN 201120440344 U CN201120440344 U CN 201120440344U CN 202282598 U CN202282598 U CN 202282598U
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- China
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- cable terminal
- dry type
- type cable
- composite
- composite dry
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Abstract
A 110 KV composite dry type cable terminal belongs to a cable accessory of a high voltage power transmission and transformation system. The 110 KV composite dry type cable terminal employs a composite umbrella skirt coat and a dry-type structure in which a silicone rubber stress cone is arranged, the umbrella skirt creepage distance is increased, and the length is shortened, so that the overall weight of the cable terminal is reduced, and the cable terminal is convenient to install and fix. The 110 KV composite dry type cable terminal is especially suitable for being used in an iron tower or a transformer station in a power grid of a high altitude harsh dirty region, and is characterized in that the length of the built-in silicone rubber stress cone is increased, the 110 KV composite dry type cable terminal is umbrella skirt laminated-shaped, and the centripetal interference of the inner diameter is controlled between 4 and 10 mm, so that, the seal interference fit of the 110 KV composite dry type cable terminal and the cable is more reasonable, the deformation relaxation or fracture generated by the excess interference is prevented, namely, an insulation performance is guaranteed and a waterproof performance is also improved; moreover, the overall aging resistance, water repellency and pollution flashover performance are improved, the maintenance frequency is reduced, and the service life is prolonged. The overall structure of the 110 KV composite dry type cable terminal is the dry type cable terminal having no insulating liquid seepage.
Description
Technical field
The utility model belongs to the electric cable accessories of 110kV high voltage power transmission and transforming system.
Background technology
The non-porcelain bushing type cable termination of 110kV is applied in the power transmission and transformation system of national grid; The product of current domestic this specification type is less; Can be divided into three types: the first kind is compound wet type, and promptly to be that composite material is prefabricated form the full skirt overcoat, inner perfusion insulation filling liquid.Second type is flexible dry type, and promptly the full skirt overcoat is pure glue prefabricated component, the set inside rubber stress cone.The 3rd type is silicon gel solidification formula, and promptly perfusion silicon gel in compound full skirt overcoat solidifies behind certain hour voluntarily.The full skirt creep distance of the non-porcelain bushing type cable termination of above-mentioned known 110kV is all between 3906-3960mm; Though reached the filthy 3.1cm/kV requirement of 110kV cable termination IV level among standard GB/T1107-2002; But can not satisfy the needs of more abominable filthy environment in practice; Not enough as using in high height above sea level more than the height above sea level 3000m, high radiation, low pressure, area that the temperature difference is big below existing: (1) insulating properties is not enough, and high voltage performance is poor, is prone to produce discharge.(2) full skirt overcoat creep distance is not enough, is not suitable for using in the high altitude localities.(3) circle is poor, reasonable inadequately with the elasticity interference fit specific aim of cable contact-making surface in the rubber stress cone of prefabricated terminal body built-in; Generally between 2-15mm; Too wide in range and cooperate more random; The permanent load operation can produce relaxation of deformation or local rhegma, makes cable termination be prone to produce free discharge.(4) compound wet type terminal perfusion in vivo insulation filling liquid, just have the possibility of seepage.(5) flexible dry outdoor terminal does not have fixed supporting seat, only is suitable for the suspension installation, and range of application is limited to.(6) silicon gel solidification formula terminal bodies need be injected the silicon gel when mounted, and needs long curing time, and the curing back combines effect wayward with internal surface of sleeve pipe.
Summary of the invention
The purpose of the utility model be development a kind of can adapt under adverse circumstances such as high height above sea level, use, naked liquid, the 110kV cable termination of being convenient to install high voltage withstanding, in light weight.
For realizing above-mentioned purpose; The technical scheme of the utility model is a kind of 110kV composite dry cable termination of design; It by conductor eduction rod (1), radome (2), conductor fixedly gold utensil (3), compress gold utensil (4), top gold utensil (5), composite bushing (6), dry type stress cone (7), pivot flange (8), mounting flange (9), supporting insulator (10), cable protection pipe (11) and form; Wherein composite bushing (6) is the range upon range of compound prefabricated component of full skirt that the fiber glass epoxy straight tube covers silicon rubber outward; Length is 1595mm, and the full skirt creep distance is not less than 4850mm; Dry type stress cone (7) is the stacked bulk silicon rubber of a full skirt prefabricated component, and its internal diameter entad magnitude of interference is between 4-10mm.Overall structure is the cable termination that dry type naked liquid seepage exists.
With known technology relatively, the utility model adopted compound full skirt overcoat with in establish the dry construction of silicon rubber stress cone, increased the full skirt creep distance; Shortened length, the cable termination overall weight has been alleviated be convenient to and install and fixing, be particularly suitable for using in iron tower or the transformer station in the abominable filthy area power grid of high height above sea level; The length lengthening of built-in silicon rubber stress cone; Be shaped as the full skirt layered laminate, the entad interference of its internal diameter is controlled between 4-10mm, more becomes reasonable with the Seal of Cables interference fit; The relaxation of deformation or the rhegma that have prevented that the magnitude of interference is excessive and produced have guaranteed that promptly insulation property have improved water resistance again.All rubber parts have all adopted the excellent silicon rubber manufacturing of physical and chemical performance, and whole resistance to ag(e)ing, hydrophobicity and pollution flashover performance are improved, and have reduced the maintenance frequency, have prolonged useful life.For the non-porcelain bushing type cable termination of 110kV has increased a new kind.
Description of drawings
Fig. 1 is the utility model structural representation.
As shown in the figure, the utility model by conductor eduction rod (1), radome (2), conductor fixedly gold utensil (3), compress gold utensil (4), top gold utensil (5), composite bushing (6), dry type stress cone (7), pivot flange (8), mounting flange (9), supporting insulator (10), cable protection pipe (11) and constitute.
Embodiment
Below in conjunction with accompanying drawing is the structure and the assembling process of specification cable detailed description the utility model of Φ 71.2mm to the insulating barrier external diameter.
1, pre-fabricated dry stress cone (7): it is the dry type stress cone (7) about Φ 66mm that the silicon rubber that will satisfy tensile strength>=7MPa, percentage elongation>=60%, permanent set≤30%, Shao A hardness≤40 becomes internal diameter through molded vulcanization, and the entad magnitude of interference that promptly guarantees internal diameter is in 4-10mm.
2, prefabricated silicone rubber O-ring: with reference to the specification of build-in U-lag, through the molded vulcanization silicone rubber O-ring that matches of moulding respectively.
3, prefabricated composite bushing (6): outside the fiber glass epoxy straight tube, injecting silicon rubber by mould is length 1595mm through vulcanization forming, and the full skirt creep distance is the stacked silicon rubber of the full skirt of 4850mm-fiber glass epoxy composite bushing (6).
4, manufacture the conductor eduction rod (1) supporting, radome (2), conductor with cable termination fixedly gold utensil (3), compress gold utensil (4), top gold utensil (5), pivot flange (8), mounting flange (9), supporting insulator (10), cable protection pipe metal and non-metallic components such as (11).
5, installation step is following: the build-in U-lag of all sealed interfaces is embedded in silicone rubber O-ring and waits to assemble in assembly.
With cable penetrate cable protection pipe (11)-pass mounting flange (9)-pass pivot flange (8)-pass dry type stress cone (7)-crimping conductor eduction rod (1)-fixed support flange (8)-fixed support insulator (10)-fixed installation flange (9)-installation composite bushing (6)-installation top gold utensil (5)-installation compress gold utensil (4)-installation conductor fixedly gold utensil (3)-installation shielding cap (2)-sealing lead, connect earth cable.
Claims (1)
1.110kV composite dry cable termination; It by conductor eduction rod (1), radome (2), conductor fixedly gold utensil (3), compress gold utensil (4), top gold utensil (5), composite bushing (6), dry type stress cone (7), pivot flange (8), mounting flange (9), supporting insulator (10), cable protection pipe (11) and form; It is characterized in that composite bushing (6) is the range upon range of compound prefabricated component of full skirt that the fiber glass epoxy straight tube covers silicon rubber outward; Length is 1595mm, and the full skirt creep distance is not less than 4850mm; Dry type stress cone (7) is the stacked bulk silicon rubber of a full skirt prefabricated component, and its internal diameter entad magnitude of interference is between 4-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204403446U CN202282598U (en) | 2011-11-09 | 2011-11-09 | 110 KV composite dry type cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204403446U CN202282598U (en) | 2011-11-09 | 2011-11-09 | 110 KV composite dry type cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282598U true CN202282598U (en) | 2012-06-20 |
Family
ID=46228749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204403446U Expired - Lifetime CN202282598U (en) | 2011-11-09 | 2011-11-09 | 110 KV composite dry type cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961910A (en) * | 2017-12-25 | 2019-07-02 | 大连电瓷集团输变电材料有限公司 | A kind of composite hollow insulator |
| CN112913097A (en) * | 2018-11-13 | 2021-06-04 | 古河电气工业株式会社 | Power cable terminal connection part and power cable terminal connection method |
-
2011
- 2011-11-09 CN CN2011204403446U patent/CN202282598U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961910A (en) * | 2017-12-25 | 2019-07-02 | 大连电瓷集团输变电材料有限公司 | A kind of composite hollow insulator |
| CN112913097A (en) * | 2018-11-13 | 2021-06-04 | 古河电气工业株式会社 | Power cable terminal connection part and power cable terminal connection method |
| CN112913097B (en) * | 2018-11-13 | 2023-01-10 | 古河电气工业株式会社 | Power cable terminal connection part and power cable terminal connection method |
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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: 20120620 |
|
| CX01 | Expiry of patent term |