CN1832283A - Sheath tube - Google Patents
Sheath tube Download PDFInfo
- Publication number
- CN1832283A CN1832283A CN 200610034810 CN200610034810A CN1832283A CN 1832283 A CN1832283 A CN 1832283A CN 200610034810 CN200610034810 CN 200610034810 CN 200610034810 A CN200610034810 A CN 200610034810A CN 1832283 A CN1832283 A CN 1832283A
- Authority
- CN
- China
- Prior art keywords
- protecting pipe
- insulating barrier
- conductive layer
- layer
- cable
- 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.)
- Pending
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Abstract
This invention relates to a jacket pipe, in which, conduction layers are set inside and outside of the insulation layer of the pipe, the voltage of the inside conduction layer is uniform, an insulation layer is in the middle and the outer conduction layer is connected to the earth. The jacket pipe can endure high voltage insulation, shielding and prevent interference and radiation.
Description
Technical field
The present invention relates to buried electric wire and cable jacket pipe in the power transmission and transformation technical field, have the protection cable and be not subjected to outside destroy, insulation, anti-interference, radiation proof, belong to the new invention technology.
Background technology
Existing sheath of hv cable pipe has only cable external force resistance safeguard function, but has following defective: 1, if the overvoltage fault appears in cable, particularly the overvoltage fault appears in high-tension cable, protecting pipe does not have the High-Voltage Insulation effect, produces relative ground circuit, causes the cable explosion accident; 2, the underground high-voltage cable is used for densely populated place, city proper substantially, the electromagnetic interference of high-tension cable and electric radiation, can influence the healthy of people, and other electric equipment safe operation of interference, cause other related security incident, the existing cable protecting pipe does not have anti-interference radiation-resistant effect.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of simple in structure, effective protective cable is provided, High-Voltage Insulation is arranged, a kind of protecting pipe of anti-interference radiation-resistant effect.
The technical scheme that realizes the object of the invention is: protecting pipe of the present invention is according to the prefabricated a kind of insulated tube of the electric pressure of cable, and conductive layer closely is set at the inside and outside wall of insulating barrier, structure is three layers, inner conducting layer plays average voltage and all presses shielding action, the intermediate layer is an insulating barrier, skin is the ground connection conductive layer, and outer conductive layer current potential is zero.
The invention has the beneficial effects as follows: because a kind of inside and outside wall of protecting pipe has conductive layer, inner conducting layer is all pressed, and the centre is an insulating barrier, outer conducting layer ground connection, and a kind of like this protecting pipe can tolerate High-Voltage Insulation, shielding, anti-interference radiation proof.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Among the figure: 1. insulating barrier, 2. in conduction equalizing press layer, 3. outer conductive earthing layer.
Embodiment
Be described further below in conjunction with 1 pair of the specific embodiment of the present invention of accompanying drawing.
As shown in Figure 1, a kind of protecting pipe of the present invention is produced insulated tube by electric pressure, evenly closely be provided with at the insulating barrier inwall and all press conductive layer, and outside the insulating barrier outer wall evenly closely is provided with the conductive earthing layer.
Embodiment: extrude a kind of protecting pipe with the three-layer co-extruded mode of plastic extruder, 1, insulating barrier, 2, interior conduction equalizing press layer, 3, outer conductive earthing layer.
Claims (5)
1, a kind of protecting pipe, electric wire or bare exposed conductor are placed in the protecting pipe its protection, insulation, shielding, anti-interference, its protecting pipe is according to the prefabricated a kind of insulated tube of the electric pressure of cable, and conductive layer closely is set at the inside and outside wall of insulating barrier (1), structure is three layers, it is characterized in that being provided with and all press conductive layer (2), ground connection conductive layer (3) is set at the insulating barrier outer wall at insulating barrier (1) inwall.
2, a kind of protecting pipe according to claim 1 is characterized in that by electric pressure insulating barrier (1) being set.
3, a kind of protecting pipe according to claim 1 is characterized in that being provided with at insulating barrier (1) inwall and all presses conductive layer (2).
4, a kind of protecting pipe according to claim 1 is characterized in that at insulating barrier (1) outer wall ground connection conductive layer (3) being set.
5, a kind of protecting pipe according to claim 1 is characterized in that electric wire or bare exposed conductor are placed in a kind of protecting pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610034810 CN1832283A (en) | 2006-04-05 | 2006-04-05 | Sheath tube |
| CNB2007100912712A CN100508319C (en) | 2006-04-05 | 2007-03-28 | Protection conduit and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610034810 CN1832283A (en) | 2006-04-05 | 2006-04-05 | Sheath tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1832283A true CN1832283A (en) | 2006-09-13 |
Family
ID=36994344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610034810 Pending CN1832283A (en) | 2006-04-05 | 2006-04-05 | Sheath tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1832283A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105144524A (en) * | 2013-02-07 | 2015-12-09 | Abb技术有限公司 | Tubular insulation device, high voltage power arrangement and method for providing insulated high voltage power cable |
-
2006
- 2006-04-05 CN CN 200610034810 patent/CN1832283A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105144524A (en) * | 2013-02-07 | 2015-12-09 | Abb技术有限公司 | Tubular insulation device, high voltage power arrangement and method for providing insulated high voltage power cable |
| CN105144524B (en) * | 2013-02-07 | 2018-05-22 | Abb 技术有限公司 | Tubular dielectric equipment, high-tension electricity device and the method for providing Insulating A High-Voltage power cable |
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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 |