CN2638308Y - Prefebricated dry cable terminal - Google Patents
Prefebricated dry cable terminal Download PDFInfo
- Publication number
- CN2638308Y CN2638308Y CN 03275801 CN03275801U CN2638308Y CN 2638308 Y CN2638308 Y CN 2638308Y CN 03275801 CN03275801 CN 03275801 CN 03275801 U CN03275801 U CN 03275801U CN 2638308 Y CN2638308 Y CN 2638308Y
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- insulation
- cable
- type structure
- capacitance type
- cable terminal
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Abstract
A prefabricated model dry cable terminal comprises a binding post, a lead core, cable body insulation, a capacitive structure, an outer shield and a parachute skirt. Wherein the lead core that exposes outside the cable body insulation is connected with the binding post, a rigid tubular outer protective shield is positioned outside the capacitive structure, the parachute skirt is fixed outside the outer protective shield, and an earth wire is led from the last layer of the capacitive structure to put to earth. The utility model is characterized in that a tubular supporting frame is positioned on the inner layer of the capacitive structure, the cable with cable body insulation runs through the tubular supporting frame. The insulating material is arranged between the supporting frame and the cable body insulation, thereby attaining the function of filling insulation and improving the stress distribution between the cable body insulation and the supporting frame. The tubular outer protective shield is positioned on the outer layer of the capacitive structure, and the insulation material is filled between the outer induced shield and the capacitive structure. The wrapping insulation dose not need field construction, the quality of products is reliable and the electrical test can be conducted in the factory.
Description
Technical field
The utility model relates to a kind of cable termination, is meant a kind of prefabrication type dry core cable terminal especially.
Background technology
At present, the crosslinked polyethylene hv cable termination of 66kV and above electric pressure mostly is oil-filled insulator cable termination both at home and abroad, promptly at cable insulation overcoat upper stress awl, fills silicone oil or other dielectric after the sealing.This terminal easy to leak, not only contaminated environment also is unfavorable for fire prevention, explosion-proof, along with the deterioration of environment, contamination accident often has generation, depend merely on increase creep distance can not the contaminated solution problem, and this cable termination volume is big, Heavy Weight, price are expensive.
For addressing the above problem, a kind of dry-type cable terminal (as shown in Figure 1) is disclosed in the patent No. is 98218242.2 and is called the utility model patent of [novel capacitance-type dry-type cable terminal], comprise: binding post 1, lead core 2, cable insulation 3, capacitance type structure 4, oversheath 5, full skirt 6 and earth connection 7, wherein: the protruding cable insulation 3 outer cores 2 of leading that are exposed to join with binding post 1, the outside of cable insulation 3 is capacitance type structures 4, capacitance type structure 4 is made of main insulation and capacitance plate, the capacitance type structure 4 outer oversheaths 5 that are provided with, full skirt 6 covers are fixed in the outside of oversheath 5, and earth connection 7 is drawn by the last screen of capacitance type structure 4.This structure has overcome the defective of Oil-filled Cable End; but all parts of its end are flexible material; stress performance is bad, and, when making at the scene; the strip off of cable body external protection is more; engineering time is long, makes cable insulation open-assembly time in external environment long, causes insulating body to make moist easily; solid power of full skirt cover and external force act on capacitance type structure by oversheath, make capacitance body impaired easily.
Be called in the utility model patent of [novel capacitance-type dry-type cable terminal] in another name, above-mentioned patent has been done improvement, its overall structure is identical with Fig. 1.Difference is that its capacitance plate is back taper, and direction is opposite with capacitance plate direction in above-mentioned Fig. 1 capacitance type structure.It is long that it has solved the engineering time, make cable insulation open-assembly time in external environment long, the problem that causes insulating body to make moist easily, but bring new problem, promptly equipotential line capacitance plate upper end turn back and be close to 180 degree, be equivalent to have most advanced and sophisticated an existence herein, be easy to generate point discharge, it is impaired finally to cause insulating, and middle thick two is thin, and the solid full skirt of its overcoat is not easy to realize.
In the patent No. is to disclose a kind of dry-type cable terminal (as shown in Figure 2) in 00264710.9 utility model patent that is called [dry-type cable terminal], be by binding post 1, lead core 2, cable insulation 3, capacitance type structure 4, oversheath 5 and full skirt 6 are formed, wherein: the protruding cable insulation 3 outer cores 2 of leading that are exposed to join with binding post 1, the outside of cable insulation 3 is capacitance type structures 4, capacitance type structure 4 is made of main insulation and capacitance plate, the capacitance type structure 4 outer oversheaths 5 that are with, full skirt 6 covers are fixed in the outside of oversheath 5, between cable insulation 3 and the capacitance type structure outside it 4, be provided with a stress material pipe 8, the end screen of capacitance type structure 4 is taper metalwork 9, this taper metalwork 9 can be used as ground connection, capacitance type structure 4 outer oversheaths 5 are the high-strength resin pipe of tubular, perfusion and curing macromolecular material between capacitance type structure 4 and oversheath 5.This patented technology has been done improvement, proposed a kind of capacitance body be difficult for impaired, do not produce point discharge and be easy to overlap the solution of the dry core cable terminal of solid full skirt.But this scheme is complex process in force, needs field fabrication, and product quality still is difficult to obtain assurance.
The utility model content
The purpose of this utility model provides a kind of prefabrication type dry core cable terminal, realizes that the finished product of dry-type cable terminal production is prefabricated, avoids the prefabrication type dry core cable terminal of the drawback of this kind dry core cable terminal field fabrication existence.
For achieving the above object, a kind of prefabrication type dry core cable terminal that provides of the present utility model, comprise binding post, lead core, cable body insulation, capacitance type structure, oversheath and full skirt form, wherein: the protruding outer core of leading of cable body insulation that is exposed to is connected with binding post; The outside of capacitance type structure is the rigid tubular outer jacket, and the full skirt cover is fixed in the outside of outer jacket, and the last screen of capacitance type structure is drawn earth connection, as ground connection;
Internal layer at capacitance type structure is provided with the tubular support skeleton, and the capacitance type structure outside is the rigid tubular outer jacket, and above-mentioned have the cable of cable body insulation by wearing in this tubular support skeleton.
Described prefabrication type dry core cable terminal, wherein support frame is to be made by the insulating material with rigidity.
Described prefabrication type dry core cable terminal wherein is filled with insulating material between support frame and the cable insulation.
Described prefabrication type dry core cable terminal, wherein the rigid tubular outer jacket is that insulating material is made.
Described prefabrication type dry core cable terminal wherein is filled with insulating material between capacitance type structure and the rigid tubular outer jacket.
Described prefabrication type dry core cable terminal, wherein the capacitor layers in the capacitance type structure can be an inverted cone shape, also can be positive taper.
Advantage of the present utility model is:
1, do not have oil, no porcelain, volume is little, and is in light weight, pollution-free leakage problems.
2, support frame, capacitance type structure and rigid tubular outer jacket are prefabricated component, and insulating bag is around not needing site operation, product quality to be easy to guarantee.
3, be insulating material between the insulation of support frame and cable body, promptly play the filling insulating effect, improve the stress distribution between cable body insulation and the support frame again.
4, be insulating material between capacitance type structure and the rigid tubular outer jacket, the full skirt cover is fixed in the outside of rigid tubular outer jacket, and the rigid tubular outer jacket had both played the effect of protection capacitance type structure, makes the cover of full skirt realize easily admittedly again.
Description of drawings:
Fig. 1 is that the patent No. is the structural representation of 98218242.2 novel capacitance-type dry-type cable terminal;
Fig. 2 is that the patent No. is the structural representation of 00264710.9 dry-type cable terminal;
Fig. 3 is the structural representation of prefabrication type dry core cable terminal of the present utility model.
Embodiment
Below in conjunction with drawings and Examples architectural feature of the present utility model is described further:
As shown in Figure 3, a kind of prefabrication type dry core cable terminal provided by the utility model, by binding post 18, lead core 10, cable body insulation 11, capacitance type structure 14, rigid tubular outer jacket 15 and full skirt 16 and formed, wherein: protruding cable body insulation 11 cores 10 of leading outward that are exposed to are connected with binding post 18; The outside of capacitance type structure 14 is the outside that rigid tubular outer jacket 15, full skirt 16 covers are fixed in rigid tubular outer jacket 15, and the last screen of capacitance type structure 14 is drawn earth connection, as ground connection; It is characterized in that:
Internal layer at capacitance type structure 14 is provided with tubular support skeleton 13, and above-mentioned cable with cable body insulation 11 wears from this tubular support skeleton 13;
On binding post 18, be provided with a grading shield 19, and these grading shield 19 covers are fixed in the end of support frame 13;
The other end at support frame 13 is provided with a base 17, is used to install and fix.
Above-mentioned support frame 13 is a prefabricated component with capacitance type structure 14, and capacitance type structure 14 is made of main insulation and capacitance plate.Insulating bag is not around needing site operation, so product quality is easy to guarantee.
Be filled with insulating material 12 between support frame 13 and the cable body insulation 11, promptly play the filling insulating effect, improve the stress distribution between cable body insulation 11 and the support frame 13 again.
Be filled with insulating material between capacitance type structure 14 and the rigid tubular outer jacket 15, play the effect of filling insulation.
Rigid tubular outer jacket 15 is made by insulating material, has both protected capacitance type structure 14, and it is solid to make full skirt 16 be easy to cover again.
The design of support frame 13, rigid tubular outer jacket 15 and base 17 makes cable termination stressed good, and sealing realizes that easily overall structure is compact and reasonable more.
Capacitor layers in the above-mentioned capacitance type structure can be an inverted cone shape, also can be positive taper.
Claims (6)
1, a kind of prefabrication type dry core cable terminal comprises binding post, leads core, cable body insulation, capacitance type structure, oversheath and full skirt form that wherein: the protruding outer core of leading of cable body insulation that is exposed to is connected with binding post; The outside of capacitance type structure is the rigid tubular outer jacket, and the full skirt cover is fixed in the outside of outer jacket, and the last screen of capacitance type structure is drawn earth connection, as ground connection; It is characterized in that:
Internal layer at capacitance type structure is provided with the tubular support skeleton, and the capacitance type structure outside is the rigid tubular outer jacket, and above-mentioned have the cable of cable body insulation by wearing in this tubular support skeleton.
2, prefabrication type dry core cable terminal according to claim 1, it is characterized in that: wherein support frame is to be made by the insulating material with rigidity.
3, prefabrication type dry core cable terminal according to claim 1 is characterized in that: wherein be filled with insulating material between support frame and the cable insulation.
4, prefabrication type dry core cable terminal according to claim 1 is characterized in that: wherein the rigid tubular outer jacket is that insulating material is made.
5, prefabrication type dry core cable terminal according to claim 1 is characterized in that: wherein be filled with insulating material between capacitance type structure and the rigid tubular outer jacket.
6, prefabrication type dry core cable terminal according to claim 1 is characterized in that: the capacitor layers in the capacitance type structure wherein can be an inverted cone shape, also can be positive taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03275801 CN2638308Y (en) | 2003-07-07 | 2003-07-07 | Prefebricated dry cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03275801 CN2638308Y (en) | 2003-07-07 | 2003-07-07 | Prefebricated dry cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2638308Y true CN2638308Y (en) | 2004-09-01 |
Family
ID=34302165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03275801 Expired - Lifetime CN2638308Y (en) | 2003-07-07 | 2003-07-07 | Prefebricated dry cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2638308Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149394A (en) * | 2013-03-15 | 2013-06-12 | 无锡市曙光电缆有限公司 | Shortening type deionized water terminal for cable partial discharge test |
| CN109565170A (en) * | 2016-07-29 | 2019-04-02 | 南方电缆有限公司 | Device with the insulator being made of plastics |
-
2003
- 2003-07-07 CN CN 03275801 patent/CN2638308Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149394A (en) * | 2013-03-15 | 2013-06-12 | 无锡市曙光电缆有限公司 | Shortening type deionized water terminal for cable partial discharge test |
| CN109565170A (en) * | 2016-07-29 | 2019-04-02 | 南方电缆有限公司 | Device with the insulator being made of plastics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130707 Granted publication date: 20040901 |