CN201655997U - Anti-theft ground downlead - Google Patents
Anti-theft ground downlead Download PDFInfo
- Publication number
- CN201655997U CN201655997U CN2010201396215U CN201020139621U CN201655997U CN 201655997 U CN201655997 U CN 201655997U CN 2010201396215 U CN2010201396215 U CN 2010201396215U CN 201020139621 U CN201020139621 U CN 201020139621U CN 201655997 U CN201655997 U CN 201655997U
- Authority
- CN
- China
- Prior art keywords
- synthetic fiber
- metal
- utility
- model
- insulating protective
- 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
Links
Images
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses an anti-theft ground downlead, consisting of a non-metal synthetic fiber layer, a tightening net sleeve and an insulating protective layer which are orderly arranged from interior to exterior. By adopting the technical scheme, the original zinc-plated steel wire or flat steel and copper wire is changed into the non-metal synthetic fiber. As the product is mainly made from non-metal material, the product material does not have the secondary recycle value, and has no recycle and sailing channel liking the noble metal of copper, thereby objectively solving the source problem of stealing. In addition, the tightening net sleeve and the insulating protective layer are arranged on the periphery of the non-metal synthetic fiber layer, so the whole ground downlead has the oxidization-resistance capability and insulation effect; and the utility model has the advantages of small specific weight, light weight, easy carrying and installation and low manufacture cost.
Description
Technical field
The utility model relates to a kind of down conductor of power distribution network.
Background technology
At present the down conductor of earthing device adopts the cross section to be not less than 35 square millimeters galvanized iron wire or band iron etc. and 16 or 25 square millimeters of copper cash more, but metals such as copper cash are valuable, and is stolen easily; Generally should not use aluminum steel,, damage fractureing easily because the aluminum steel mechanical strength is very poor, and corrosion easily, very unreliable.Even if so also often there is theft to take place, being struck by lightning or overload if mend system's off time of line except property loss in stolen back, just may cause serious accident, brings very big hidden danger to safety in production.
Summary of the invention
The purpose of this utility model provides and a kind ofly can not only satisfy performance requirement, but also has the down conductor of corrosion-resistant and antitheft effect.
For achieving the above object, the utility model is by the following technical solutions:
The utility model from inside to outside successively by nonmetal synthetic fiber layer, tighten net and insulating protective layer is formed.
Described nonmetal synthetic fiber layer is made of in polyacrylonitrile fibre, pitch fibers, viscose or the phenolic fibre any one.
Adopt the utility model of technique scheme, original galvanized iron wire or band iron and copper cash are changed into nonmetal synthetic fibers, because product material is mainly nonmetal, do not have the secondary recovery value, there is recovery to sell off channel unlike precious metals such as copper, thereby in the source problem that has objectively solved theft.In addition, tighten net and insulating protective layer, make whole down conductor have oxidation resistance and insulation effect in the setting of the periphery of nonmetal synthetic fiber layer; And the utility model proportion is little, light portable installation, and project cost is cheap.
Owing to possess above advantage, the utility model is mainly used in following aspect:
1, single time and many times insulated overhead line lightning protections are as down conductor;
2, the down conductor of built on stilts on-pole switch, isolation switch, equipment such as PT, CT;
3, built on stilts outdoor cable terminal of installing, and under the arrester ground lead-in wire;
4, the outdoor protection ground connection of railway, communication electric power system.
Description of drawings
Accompanying drawing is a cross-sectional structure schematic diagram of the present utility model.
Embodiment
As shown in the figure, the utility model from inside to outside successively by nonmetal synthetic fiber layer 1, tighten net 2 and insulating protective layer 3 is formed.
Above-mentioned nonmetal synthetic fiber layer 1 is made up of the macromolecular fibre composite material, and the macromolecular fibre composite material is mainly any one in polyacrylonitrile fibre, pitch fibers, viscose or the phenolic fibre.In the preparation, the macromolecular fibre composite material through high-temperature process, is made nonmetal heart yearn; surround with the net of strengthening 2 of tightening again; outermost layer overlaps one deck insulating protective layer 3 again, when satisfying resistance, overcurrent, stretching resistance, corrosion-resistant etc. the requirement, also has antitheft effect.
Need to prove, because the average height of shaft tower is lower than the shaft tower of power transmission sequence in the power distribution network, may be subjected to covering of building and trees around the circuit, also lacked relatively by the chance of direct lightning strike, but then again because the power distribution network insulation level is lower, wire spacing is also less, suffers direct lightning strike to be easy to tripping operation, and the one side of easy generation damage to crops caused by thunder accident is promptly arranged.Operating experience proves that the damage to crops caused by thunder accident of power distribution network accounts for 70%～80% of whole electric power system damage to crops caused by thunder accident.Therefore, the lightning protection of power distribution network must be strengthened energetically, the reliability of power supply could be improved.
Because of the wide line length of distribution line point multiaspect; circuit can not do to attack directly protection with lightning conducter or lightning rod; moreover distribution line also is to adopt isolated neutral system; span is also very little; so lead is accomplished rounded projections arranged easily; uppermost lead can play the lightning conducter effect, is preferably on the insulator of lead topmost the protection gap every a ground connection of 6-7 base installing.For improving power distribution network direct striking thunder prevention level, start with from the lightning withstand level that improves circuit, adopt porcelain pole arm or higher leveled insulator.
Claims (2)
1. antitheft down conductor is characterized in that: it from inside to outside successively by nonmetal synthetic fiber layer (1), tighten net (2) and insulating protective layer (3) is formed.
2. antitheft down conductor according to claim 1 is characterized in that: described nonmetal synthetic fiber layer (1) is made of in polyacrylonitrile fibre, pitch fibers, viscose or the phenolic fibre any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201396215U CN201655997U (en) | 2010-03-24 | 2010-03-24 | Anti-theft ground downlead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201396215U CN201655997U (en) | 2010-03-24 | 2010-03-24 | Anti-theft ground downlead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655997U true CN201655997U (en) | 2010-11-24 |
Family
ID=43121239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201396215U Expired - Fee Related CN201655997U (en) | 2010-03-24 | 2010-03-24 | Anti-theft ground downlead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738602A (en) * | 2012-07-11 | 2012-10-17 | 山东大学 | Carbon fiber grounding electrode |
-
2010
- 2010-03-24 CN CN2010201396215U patent/CN201655997U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738602A (en) * | 2012-07-11 | 2012-10-17 | 山东大学 | Carbon fiber grounding electrode |
| CN102738602B (en) * | 2012-07-11 | 2014-10-22 | 山东大学 | Carbon fiber grounding electrode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201466635U (en) | Insulating tower head of composite insulating pole tower | |
| CN201518406U (en) | Lightning protection grounding wire clip for overhead conductor wire | |
| CN101325104B (en) | Lightning protection post insulator | |
| CN203278165U (en) | 10kV overhead distribution line arrester arrangement structure | |
| CN201435277Y (en) | lightning-proof insulator | |
| CN101692572A (en) | Grounding method for composite insulating pole tower of power transmission line and pole tower thereof | |
| CN101964507B (en) | Central vertical grounding leading-down method for composite pole tower and pole tower thereof | |
| CN201655997U (en) | Anti-theft ground downlead | |
| CN201213082Y (en) | Puncture type lightning preventing insulator | |
| CN204189533U (en) | Puncture type lightning preventing insulator | |
| CN109826482A (en) | A kind of anti-lightning strike shaft tower of composite construction | |
| CN202404963U (en) | High-tension shielding lower conductor for downlead of lightning receptor | |
| CN210264112U (en) | Lightning protection pole tower with composite structure | |
| CN203166445U (en) | Device using coupling ground line to reduce lightning trip-out rate of transmission line | |
| CN201629187U (en) | Lightning prevention insulator of power transmission lines | |
| CN208337122U (en) | A kind of 10kV suspended insulated guide wire with the anti-lightning strike broken string of shielded layer | |
| CN106448842A (en) | Insulating aerial cable made from coreless material | |
| CN203055553U (en) | Anti-windage jumper wire composite insulator | |
| CN207069519U (en) | Overhead transmission line protection device and system for windage yaw | |
| CN112018696A (en) | 10kV insulated conductor line trip protection method | |
| CN202839084U (en) | Twin-twisted overhead line | |
| CN103904602A (en) | Wire abandoning and pole protecting device for transmission and distribution line and installation method for wire abandoning and pole protecting device | |
| CN204464915U (en) | Transmission line of alternation current steel tower | |
| CN107947097A (en) | A kind of 10kV suspended insulated guide wires with the anti-lightning strike broken string of shielded layer | |
| CN202455022U (en) | Lightning protection device for net reinforced concrete pole |
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: 20101124 Termination date: 20130324 |