CN102969690A - Outdoor terminal with reliable sealing structure - Google Patents
Outdoor terminal with reliable sealing structure Download PDFInfo
- Publication number
- CN102969690A CN102969690A CN2012105606536A CN201210560653A CN102969690A CN 102969690 A CN102969690 A CN 102969690A CN 2012105606536 A CN2012105606536 A CN 2012105606536A CN 201210560653 A CN201210560653 A CN 201210560653A CN 102969690 A CN102969690 A CN 102969690A
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- CN
- China
- Prior art keywords
- outgoing line
- porcelain bushing
- cable
- line porcelain
- outdoor terminal
- 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.)
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Abstract
The invention discloses an outdoor terminal with a reliable sealing structure. The outdoor terminal comprises an outgoing line porcelain bushing, wherein a shielding case is arranged at the front end of the outgoing line porcelain bushing, a cable stretches in the outgoing line porcelain bushing from the rear end of the outgoing line porcelain bushing, a GIS (gas insulated switchgear) stress cone is installed in the middle section of the stretched-in cable, a conductor at the tail end of the cable is connected with an outgoing line stalk, and the outgoing line stalk stretches out of the shielding case and is connected with an outgoing line clamp; a tail tube is installed at the rear end of the outgoing line porcelain bushing via a flange, the tail tube is sealed with the cable via coated lead, and polyisobutene insulating liquid is filled in the outgoing line porcelain bushing; and sealing structures are arranged at the junction of the conductor and the outgoing line stalk, as well as between the tail tube and the coated lead, and an impermeable layer is added at the two sealing structures. According to the invention, via addition of the impermeable layer, the sealing performance can be effectively improved.
Description
Technical field
The invention belongs to a kind of HV cable accessories, be specifically related to a kind of outdoor terminal with positiver sealing structure.
Background technology
The inner low-molecular-weight polyisobutylene dielectric of filling of 64/110kv crosslinked cable outdoor terminal, the advantage of this structure is to increase creepage distance in the severe contamination area, improved the level that anti-soil dodges, owing to its whole electrical property of iknsulating liquid of having filled excellent insulation performance is improved, long-term electric life has had assurance again.But this structure is used for the unreasonable dielectric Seepage that usually occurs of sealed bottom structure because dielectric is contained in inside in actual the use, brings great trouble and potential safety hazard for user and whole high tension loop.
Existing hermetically-sealed construction is twined by various bands, and the shutoff interface forms, and the leakproof of this structure mainly relies on the tetrafluoroethene self-adhesive tape.Copper mesh has been strengthened the effect of conducting short circuit current.Can see from structure chart, (copper mesh is stabbed if the tetrafluoroethene self-adhesive tape sustains damage,) or along with the reduction of the growth tetrafluoroethene self-adhesive tape intensity of service time all can cause dielectric to see through the tetrafluoroethene self-adhesive tape, and other self-adhesive tape (water blocking tape, semi-conductive tape, insulating tape) all mix with dielectric, dielectric can see through very soon overcoat and ooze out.
Summary of the invention
Technical problem to be solved by this invention provides the outdoor terminal that a kind of sealing property promotes, and can effectively eliminate the hidden danger that dielectric oozes out.
A kind of outdoor terminal with positiver sealing structure of the present invention, comprise outgoing line porcelain bushing, the outgoing line porcelain bushing front end is provided with radome, cable stretches into outgoing line porcelain bushing inside from the outgoing line porcelain bushing rear end, the GIS stress cone is installed in the stage casing of the cable that stretches into, the conductor of cable end piece links to each other with the outlet stalk, and the outlet stalk stretches out radome and links to each other with terminal clamp; Tail pipe is installed by flange in the outgoing line porcelain bushing rear end, by warding off lead-tight, fills the polyisobutene dielectric in outgoing line porcelain bushing inside between tail pipe and the cable; In the junction of conductor and outlet stalk, and tail pipe is provided with hermetically-sealed construction with warding off between the lead, at impervious barrier of described two hermetically-sealed construction places increase.
Described impervious barrier is double-deck tetrafluoroethene self-adhesive tape.
The present invention can effectively improve sealing property by increasing one deck impervious barrier.This impervious barrier adopts double-deck tetrafluoroethene self-adhesive tape, guarantees in use hermetically-sealed construction reliable of secondary terminal.The tetrafluoroethene self-adhesive tape is high temperature resistant, the corrosion of anti-various liquid, and tack is excellent.The tetrafluoroethene self-adhesive tape that adopts in actual use Japanese Ri Dong company to produce has been guaranteed HV cable accessories terminal safety in use, has eliminated the hidden danger of dielectric seepage.
Description of drawings
Fig. 1 is overall structure figure of the present invention,
Fig. 2 is Fig. 1 A place partial enlarged drawing,
Fig. 3 is Fig. 1 B place partial enlarged drawing.
Embodiment
As shown in Figure 1, outdoor terminal with positiver sealing structure of the present invention, comprise outgoing line porcelain bushing 1, outgoing line porcelain bushing 1 front end is provided with radome 6, cable 2 stretches into outgoing line porcelain bushing 1 inside from outgoing line porcelain bushing 1 rear end, GIS stress cone 3 is installed in the stage casing of the cable that stretches into, and the conductor 4 of cable end piece links to each other with outlet stalk 5, and outlet stalk 5 stretches out radome 6 and links to each other with terminal clamp 7; Tail pipe 9 is installed by flange 8 in outgoing line porcelain bushing 1 rear end, by warding off plumbous 10 sealings, fills the polyisobutene dielectric in outgoing line porcelain bushing 1 inside between tail pipe 9 and the cable; In conductor 4 junction with outlet stalk 5, and tail pipe 9 with ward off plumbous 10 between be provided with hermetically-sealed construction, it is characterized in that, at impervious barrier 11 of described two hermetically-sealed construction places increase.Shown in Fig. 2 and 3, impervious barrier 11 is double-deck tetrafluoroethene self-adhesive tape.
The concrete application approach of the present invention is a lot, and the above only is preferred implementation of the present invention, should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (2)
1. outdoor terminal with positiver sealing structure, comprise outgoing line porcelain bushing (1), outgoing line porcelain bushing (1) front end is provided with radome (6), cable (2) stretches into outgoing line porcelain bushing (1) inside from outgoing line porcelain bushing (1) rear end, GIS stress cone (3) is installed in the stage casing of the cable that stretches into, the conductor of cable end piece (4) links to each other with outlet stalk (5), and outlet stalk (5) stretches out radome (6) and links to each other with terminal clamp (7); Tail pipe (9) is installed by flange (8) in outgoing line porcelain bushing (1) rear end, by warding off lead (10) sealing, fills the polyisobutene dielectric in outgoing line porcelain bushing (1) inside between tail pipe (9) and the cable; In the junction of conductor (4) and outlet stalk (5), and tail pipe (9) is provided with hermetically-sealed construction with warding off between the lead (10), it is characterized in that, at described two hermetically-sealed construction places increase impervious barrier (11).
2. the outdoor terminal with positiver sealing structure according to claim 1 is characterized in that, described impervious barrier (11) is double-deck tetrafluoroethene self-adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105606536A CN102969690A (en) | 2012-12-21 | 2012-12-21 | Outdoor terminal with reliable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105606536A CN102969690A (en) | 2012-12-21 | 2012-12-21 | Outdoor terminal with reliable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102969690A true CN102969690A (en) | 2013-03-13 |
Family
ID=47799653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105606536A Pending CN102969690A (en) | 2012-12-21 | 2012-12-21 | Outdoor terminal with reliable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102969690A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200953455Y (en) * | 2006-09-22 | 2007-09-26 | 宝山钢铁股份有限公司 | Electric cable heat-shrinkable middle joint |
| CN201789265U (en) * | 2010-07-16 | 2011-04-06 | 3M创新有限公司 | Composite outlet rod of cable terminal for gas or liquid insulating electrical device |
| CN202353166U (en) * | 2011-12-19 | 2012-07-25 | 长园电力技术有限公司 | Insulating sleeve of electric cable |
| CN202978197U (en) * | 2012-12-21 | 2013-06-05 | 江苏普朗克电力科技有限公司 | Outdoor terminal with reliable sealing structures |
-
2012
- 2012-12-21 CN CN2012105606536A patent/CN102969690A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200953455Y (en) * | 2006-09-22 | 2007-09-26 | 宝山钢铁股份有限公司 | Electric cable heat-shrinkable middle joint |
| CN201789265U (en) * | 2010-07-16 | 2011-04-06 | 3M创新有限公司 | Composite outlet rod of cable terminal for gas or liquid insulating electrical device |
| CN202353166U (en) * | 2011-12-19 | 2012-07-25 | 长园电力技术有限公司 | Insulating sleeve of electric cable |
| CN202978197U (en) * | 2012-12-21 | 2013-06-05 | 江苏普朗克电力科技有限公司 | Outdoor terminal with reliable sealing structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |