CN202550460U - Cold-contraction cable terminal - Google Patents
Cold-contraction cable terminal Download PDFInfo
- Publication number
- CN202550460U CN202550460U CN2012201330645U CN201220133064U CN202550460U CN 202550460 U CN202550460 U CN 202550460U CN 2012201330645 U CN2012201330645 U CN 2012201330645U CN 201220133064 U CN201220133064 U CN 201220133064U CN 202550460 U CN202550460 U CN 202550460U
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- CN
- China
- Prior art keywords
- cable termination
- insulator
- cold
- stress cone
- utility
- 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 relates to a cold-contraction cable terminal which comprises an insulator. A stress cone is arranged inside the insulator, is positioned at an end opening of the insulator and is horn-shaped. The horn-shaped stress cone is arranged at the end opening of the cold-contraction cable terminal, so that distribution of an electric field at a metal shielding disconnection position is effectively improved, and an actual effect is good.
Description
Technical field
The utility model relates to a kind of shrinkage cable termination, relates in particular to the above shrinkage cable termination of 10KV that a kind of electric power system is used.
Background technology
Cable termination collection waterproof, Stress Control, shield, electrically isolate from one, have good electric property and mechanical performance, can under various harsh environmental conditions, use for a long time.Cable termination has advantages such as in light weight, easy for installation.Cable termination is widely used in electric power, petrochemical industry, metallurgy, railway harbour and building every field.Existing cable termination comprises shrinkage cable termination and two kinds of structures of thermal contraction cable termination.
The shrinkage cable termination have volume little, easy to operate, rapid, need not specific purpose tool, the scope of application is wide and etc. advantage.Compare with the thermal contraction cable termination, the shrinkage cable termination need not used the fire heating.Because shrinkage cable termination head rest elastic compression power, the shrinkage cable termination moves after installing or the crooked hidden danger of quality of throwing off between the annex interior layer of can as the thermal contraction cable termination, not occurring, so range of application is very extensive.
The shrinkage cable termination is to utilize the elastic insulator material, and commonly used have silicon rubber and an ethylene-propylene rubber etc., in factory, injects sulfidization molding, constitutes the parts of various electric cable accessoriess again with the plastic spiral supporter through hole enlargement, lining.During on-the-spot the installation, these predilation spares are enclosed within after treatment cable end piece or joint, extract the plastic spiral bar (being support bar) of inner support out, elastic insulator is pressed on the cable insulation and the cable termination that constitutes.
In cable is made; Owing to need metallic shield (or sheath) and insulating barrier be cut off; Cross section, conductor splice place is strengthened, the not equal reason of the thickness of supplementary insulation, dielectric constant and cable body insulation, and the Electric Field Distribution in the cable end has greatly changed than cable itself.This variation mainly shows the axial electric field intensity that has produced along the cable insulation surface direction, perhaps is axial stress, and at metallic shield gap and the core place that continues, axial electric field is strong especially, and axial stress is concentrated especially in other words.
It is very unfavorable to cable insulation that axial stress is concentrated.So, improve rightly metallic shield gap and core continue the place Electric Field Distribution most important.Therefore, when making cable termination, must solve problem about metallic shield gap Electric Field Distribution.
The utility model content
The deficiency that the utility model exists to prior art just provides a kind of shrinkage cable termination.
For addressing the above problem, the technical scheme that the utility model is taked is following:
A kind of shrinkage cable termination comprises insulator, and said have stress cone in the insulator set inside, and stress cone is arranged on the port of insulator.
Further, said stress cone is horn-like.
The beneficial effect of the utility model is:
The described shrinkage cable termination of the utility model is provided with trumpet-shaped stress cone in the port, effectively solves the problem of metallic shield gap Electric Field Distribution, and actual effect is good.
Description of drawings
Fig. 1 is the described shrinkage cable termination of a utility model structural representation;
Fig. 2 is a stress cone structural representation in the described shrinkage cable termination of the utility model.
Embodiment
To combine concrete embodiment that the content of the utility model is described below.
As shown in Figure 1, be the described shrinkage cable termination of the utility model structural representation, Fig. 2 is a stress cone structural representation in the described shrinkage cable termination of the utility model.The described shrinkage cable termination of the utility model comprises insulator 1, in insulator 1 set inside stress cone 2 is arranged.Stress cone 2 is arranged on the port of insulator 1.
The described stress cone 2 of the utility model is horn-like.During moulding, that stress cone 2 is as inserts, one-body molded with insulator 1.
Claims (2)
1. a shrinkage cable termination comprises insulator (1), it is characterized in that, said have stress cone (2) in insulator (1) set inside, and stress cone (2) is arranged on the port of insulator (1).
2. a kind of shrinkage cable termination as claimed in claim 1 is characterized in that said stress cone (2) is horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201330645U CN202550460U (en) | 2012-03-31 | 2012-03-31 | Cold-contraction cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201330645U CN202550460U (en) | 2012-03-31 | 2012-03-31 | Cold-contraction cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550460U true CN202550460U (en) | 2012-11-21 |
Family
ID=47171029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201330645U Expired - Fee Related CN202550460U (en) | 2012-03-31 | 2012-03-31 | Cold-contraction cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595011A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Cold shrink tube |
-
2012
- 2012-03-31 CN CN2012201330645U patent/CN202550460U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595011A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Cold shrink tube |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20170331 |