CN201078793Y - Hollow core distributing cable - Google Patents
Hollow core distributing cable Download PDFInfo
- Publication number
- CN201078793Y CN201078793Y CNU2007200079199U CN200720007919U CN201078793Y CN 201078793 Y CN201078793 Y CN 201078793Y CN U2007200079199 U CNU2007200079199 U CN U2007200079199U CN 200720007919 U CN200720007919 U CN 200720007919U CN 201078793 Y CN201078793 Y CN 201078793Y
- Authority
- CN
- China
- Prior art keywords
- cable
- insulating tube
- hollow core
- outer sealing
- protection layer
- 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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- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The utility model discloses a hollow core distributing cable , which has an outer sealing fixing protection layer. The outer sealing fixing protection layer is internally provided with two or above insulating tubes, a layer of metal strip (wire) sheathed coating is additionally provided between the insulating tube and the outer sealing fixing protection layer. The insulating tube is arranged in round shape or transverse line shape inside the outer sealing fixing protection layer, each insulating tube is only for coating one wire, the insulating tube can be additionally provided with a metal hose. Each insulating tube can be used for circulation of temperature cooling gas at the same time for coating a wire, the metal hose additionally positioned on the insulating tube serves as a cable shield layer to increase anti-pressure of the hollow core distributing cable; the hollow core distributing cable junction box is not only overlap box of main cable and branch cable, but also is the entrance of temperature cooling gas, which can simultaneously replace working well.
Description
Technical field
The utility model relates to the power supply circuit, especially the hollow distribution cable.
Background technology
Electric energy becomes indispensable main energy sources in the people's lives production already, the conductance of lead has substantial connection with temperature, aluminum conductor temperature decline 10 degree conductor resistances reduce by 4%, and the serviceability temperature of superconducting line is more and more higher, and supply line one adopts overhead transmission line, the 2nd at present, adopts the underground cable circuit.Because the newly-built expense of present buried supply line is too high, just need the integral replacing cable or add deposited cable with the electric loading increase, so the overhead transmission line power supply is still adopted in most city, make city electric pole such as woods, line such as spider net.
Summary of the invention
The purpose of this utility model is to provide a hollow distribution cable, and this hollow distribution cable can be laid on underground, construction and easy to maintenance.
The technical solution of the utility model is: a kind of hollow distribution cable; this hollow distribution cable is a fixedly protective layer of external seal; external seal fixedly is provided with the insulated tube more than two or two in the protective layer, and insulated tube and external seal fixedly can be set up one deck steel band (silk) armouring between protective layer.Insulated tube is arranged with round or yi word pattern in the sealing and fixing protective layer outside, and every insulated tube only supplies a conductor laying, can add metal hose on the insulated tube.Every insulated tube only simultaneously also can be for the circulation of cooling gas circulation for a conductor laying, can add metal hose on the insulated tube and also increase the compressive resistance of hollow distribution cable as cable shield, the wiring of hollow distribution cable is closed and is not full of main line and the branch line overlap joint closes or the import and export of the gas of lowering the temperature are contemporary for active well.
Advantage of the present utility model is: the hollow distribution cable is held concurrently so the function of cable and cable protection pipe is saved buried supply line construction cost and material, significantly reduces line fault, is convenient to lead replacing upgrading.But but hollow distribution cable and natural draft heat radiation increase the current in wire amount also forced refrigeration make it to become hyperconductive cable.
Description of drawings
Fig. 1 is the utility model hollow distribution cable structural representation;
Fig. 2 closes the Facad structure schematic diagram for the wiring of the utility model hollow distribution cable;
Fig. 3 closes the side structure schematic diagram for the wiring of the utility model hollow distribution cable.
Embodiment
A kind of hollow distribution cable; this hollow distribution cable is that three insulated tubes are to arrange in the round protective layer of sealing and fixing outside; conductor laying of 1 confession of every insulated tube simultaneously also can be for the circulation of cooling gas circulation; can add metal hose 2 on the insulated tube is the compressive resistance that cable shield has also increased the hollow distribution cable; external seal is protective layer 3 usefulness plastics or rubber making fixedly, fixedly can set up one deck steel band (silk) armouring 4 between protective layer by instructions for use insulated tube 1 and external seal.
Hollow distribution cable wiring closes 5, and to bury underground upper end underground parallel to the ground, and distribution cable closes every limit can establish connecting port 6 for connecting hollow distribution cable or branch cables.The wiring of hollow distribution cable is divided into several lattice according to number of conductors in closing, and is provided with wiring chamber 7 in every lattice for the lead overlap joint, and every lattice below is provided with blow vent 8 UNICOM's insulated tube cooling gas and circulates in insulated tube.
Claims (2)
1. hollow distribution cable; it is characterized in that: this hollow distribution cable is a fixedly protective layer of external seal; external seal fixedly is provided with the insulated tube (1) more than two or two in the protective layer (3), and insulated tube (1) and external seal fixedly can be set up one deck steel band, silk armouring (4) between protective layer.
2. according to the described hollow distribution cable of claim 1, it is characterized in that: insulated tube (1) is arranged with round or yi word pattern in the sealing and fixing protective layer outside, and every insulated tube (1) only for a conductor laying, can add metal hose (2) on the insulated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200079199U CN201078793Y (en) | 2007-08-10 | 2007-08-10 | Hollow core distributing cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200079199U CN201078793Y (en) | 2007-08-10 | 2007-08-10 | Hollow core distributing cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078793Y true CN201078793Y (en) | 2008-06-25 |
Family
ID=39570859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200079199U Expired - Fee Related CN201078793Y (en) | 2007-08-10 | 2007-08-10 | Hollow core distributing cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078793Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687356A (en) * | 2009-09-14 | 2012-09-19 | 罗杰.福克纳 | Underground modular high-voltage direct current electric power transmission system |
-
2007
- 2007-08-10 CN CNU2007200079199U patent/CN201078793Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687356A (en) * | 2009-09-14 | 2012-09-19 | 罗杰.福克纳 | Underground modular high-voltage direct current electric power transmission system |
| CN102687356B (en) * | 2009-09-14 | 2015-11-25 | 罗杰.福克纳 | Underground modular high-voltage direct current electric power transmission system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20110810 |