CN203445579U - Lightning protection device for cable terminal - Google Patents
Lightning protection device for cable terminal Download PDFInfo
- Publication number
- CN203445579U CN203445579U CN201320724805.1U CN201320724805U CN203445579U CN 203445579 U CN203445579 U CN 203445579U CN 201320724805 U CN201320724805 U CN 201320724805U CN 203445579 U CN203445579 U CN 203445579U
- Authority
- CN
- China
- Prior art keywords
- lightning arrester
- copper
- cable termination
- wire
- copper conductor
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000010949 copper Substances 0.000 claims abstract description 52
- 229910052802 copper Inorganic materials 0.000 claims abstract description 52
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 21
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004020 conductor Substances 0.000 claims description 40
- 239000004411 aluminium Substances 0.000 claims description 17
- 239000004698 Polyethylene Substances 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000000725 suspension Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000012771 pancakes Nutrition 0.000 description 1
Images
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
本实用新型提供一种电缆终端避雷装置，包括避雷器，所述避雷器固定在支架上,所述避雷器接地端与杆塔接地线连接，所述避雷器的引入端连接有铜导线，所述铜导线通过铜铝过渡压板与架空线连接，在所述架空线上连接有电缆终端。所述铜的抗氧化性强，不易被氧化，机械强度大，不会因雷击时产生的较大电流作用而断裂，可靠性高，安全性能良好。但是，由于架空线为钢芯铝绞线，由于材质不同，不能直接与铜线连接，因此铜导线通过铜铝过渡压板与架空线连接，这样就解决了更换铜导线后连接的问题，大大提高了安全性能。
The utility model provides a cable terminal lightning protection device, which includes a lightning arrester, the lightning arrester is fixed on a bracket, the grounding end of the lightning arrester is connected with the grounding wire of a pole tower, the lead-in end of the lightning arrester is connected with a copper wire, and the copper wire passes through the copper The aluminum transitional pressure plate is connected to an overhead line on which a cable terminal is connected. The copper has strong oxidation resistance, is not easy to be oxidized, has high mechanical strength, will not break due to the large current generated when lightning strikes, has high reliability and good safety performance. However, since the overhead wire is a steel-cored aluminum stranded wire, it cannot be directly connected to the copper wire due to different materials, so the copper wire is connected to the overhead wire through a copper-aluminum transition plate, which solves the problem of connecting after replacing the copper wire and greatly improves safety performance.
Description
Technical field
The utility model relates to a kind of cable termination lightning arrester.Belong to technical field of power systems.
Background technology
In recent years, along with the extensive use of high voltage power cable, the quantity of cable termination shaft tower also increases thereupon.According to service requirement, lightning arrester should be installed in the joint portion of cable termination and overhead wire, to prevent that the main insulation of cable and annex from damaged by overvoltage.Arrester ground should meet designing requirement, down conductor fixation, and the connection of lead-in wire should not make arrangement terminal be subject to surpassing the holding capacity allowing.
The arrester device of the cable termination of the 35kV of operation～11kV protection now has suspension type and two kinds of seat formulas; from actual motion; on the connection of suspension mounting arrester ground end and seat formula device lightning arrester, the connection of lead end exists serious potential safety hazard; easily rupture in junction; make cable termination can not get the protection of lightning arrester, the faults such as ground connection, short circuit easily occur.
In prior art, arrester ground lead-in wire, for copper braiding flexible cord, because material is softer, is shaped as pancake, wind area is large, and length is wayward etc., causes lead-in wire often swung back and forth by wind, rub back and forth with lightning arrester coupling part, and the reason such as corroded and cause often fracture of lead-in wire.Make cable termination lose lightning protection, the lead-in wire of fracture also can cause line-to-ground or short trouble, has a strong impact on the safe and stable operation of circuit.And this type of defect processing is cumbersome, after must having a power failure, just can recover, unfavorable to the safe operation of electrical network.
Lightning arrester lead-in wire refers to the connecting line between lightning arrester leading-in end and overhead wire downlead (station track), it is built on stilts that to draw lower wire material be steel reinforced aluminium conductor, in prior art, the leading-in end connecting line of lightning arrester is used aluminum steel, because but aluminium aluminum steel is easily oxidized, strength decreased, when the thunder-strike current by larger, easily rupture, cause dangerous accident.
Utility model content
For this reason, technical problem to be solved in the utility model is that in prior art, arrester ground lead-in wire is copper braiding flexible cord, and material is softer, easily fracture; When the leading-in end connecting line of lightning arrester is aluminum steel, easily oxidized, when the thunder-strike current by larger, easily rupture, thereby propose a kind of cable termination arrester device.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
A kind of cable termination lightning arrester, comprise lightning arrester, described lightning arrester is fixed on support, described arrester ground end is connected with tower grounding line, the leading-in end of described lightning arrester is connected with copper conductor, described copper conductor is connected with overhead wire by copper-aluminium transition pressing plate, on described overhead wire, is connected with cable termination.
The metallic plate that described copper-aluminium transition pressing plate is aluminium for Wei Tong, one end, one end of being passed through thermal weld by aluminium sheet and copper coin and forming.
The copper coin end of described copper-aluminium transition pressing plate is connected with described copper conductor, and the aluminium sheet end of described copper to aluminum adapter bar is connected with overhead wire.
Described copper conductor one end is provided with binding post, and described binding post is connected with the leading-in end of described lightning arrester.
The earth terminal of described lightning arrester is connected with tower grounding line by the polyethylene insulated aerial line of 10kV.
Described lightning arrester is suspended on described support.
Described lightning arrester is fixed on the supporting traverse of installing cables terminal, and described supporting traverse is horizontally fixed on shaft tower.
Described cable termination and described lightning arrester are arranged side by side on described supporting traverse.
The cross-sectional area scope of described copper conductor is 25-100mm
2.
The cross-sectional area of described copper conductor is 50mm
2.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) the utility model provides a kind of cable termination lightning arrester, comprise lightning arrester, described lightning arrester is fixed on support, described arrester ground end is connected with tower grounding line, the leading-in end of described lightning arrester is connected with copper conductor, described copper conductor is connected with overhead wire by copper-aluminium transition pressing plate, on described overhead wire, is connected with cable termination.The non-oxidizability of described copper is strong, is difficult for oxidizedly, and mechanical strength is large, and what in the time of can be because of thunderbolt, produce ruptures compared with the large function of current, and reliability is high, and security performance is good.But, because overhead wire is steel reinforced aluminium conductor, because material is different, can not directly be connected with copper cash, so copper conductor is connected with overhead wire by copper-aluminium transition pressing plate, with regard to having solved the latter linked problem of replacing copper conductor, greatly improved security performance like this.
(2) the utility model provides a kind of cable termination lightning arrester, because overhead wire is steel reinforced aluminium conductor, adopt copper-aluminium transition pressing plate to be connected with the incoming end wiring transition of lightning arrester, the metallic plate that described copper-aluminium transition pressing plate is aluminium for Wei Tong, one end, one end of being formed through thermal weld by aluminium sheet and copper coin, has realized the not directly copper conductor of connection and the safe and reliable connection of overhead wire by copper-aluminium transition pressing plate.
(3) the utility model provides a kind of cable termination lightning arrester, and described copper conductor one end is provided with binding post, more convenient while installing at the scene.
(4) the utility model provides a kind of cable termination lightning arrester, the earth terminal of described lightning arrester is connected with tower grounding line by the polyethylene insulated aerial line of 10kV, wind area is little, be subject to the impact of wind-force little, the polyethylene sheath resistance to corrosion of insulated cable is strong, stable performance, while also effectively having prevented wind and the friction of lightning arrester coupling part.
(5) the utility model provides a kind of cable termination lightning arrester, be divided into suspension type and desk-top two kinds, described lightning arrester can be suspended on support, also described lightning arrester can be arranged on the supporting traverse of installing cables terminal, lightning arrester and cable termination are arranged side by side, these two kinds of set-up modes can be suited measures to local conditions as required, applicable multiple occasion.
(6) the utility model provides a kind of cable termination lightning arrester, and the cross-sectional area scope of described copper conductor is 25-100mm
2, preferred 50mm
2, the non-oxidizability of copper is strong, and intensity can increase like this, can not rupture because of thunder-strike current effect, has improved useful life and performance.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is a kind of cable termination lightning arrester of an embodiment of the utility model;
Fig. 2 is a kind of cable termination lightning arrester of an embodiment of the utility model.
In figure, Reference numeral is expressed as: the polyethylene insulated aerial line of 1-10kV, 2-support, 3-lightning arrester, 4-copper conductor, 5-cable termination, 6-overhead wire, 7-copper-aluminium transition pressing plate, 8-supporting traverse.
Embodiment
embodiment mono-
The present embodiment provides a kind of cable to keep away suspension type thunder device, as shown in Figure 1, comprise lightning arrester 3, described lightning arrester 3 hangs and is fixed on support 2, described lightning arrester 3 earth terminals are connected with tower grounding line (not shown), the leading-in end of described lightning arrester 3 is connected with copper conductor 4, and described copper conductor 4 is connected with overhead wire 6 by copper-aluminium transition pressing plate 7, on described overhead wire 6, is connected with cable termination 5.Described copper conductor 4 one end are provided with binding post, and described binding post is connected with the leading-in end of described lightning arrester 3.More convenient while installing at the scene.
The metallic plate that described copper-aluminium transition pressing plate 7 is aluminium for Wei Tong, one end, one end of being passed through thermal weld by aluminium sheet and copper coin and forming.Adopt copper-aluminium transition pressing plate 7 to be connected with the incoming end wiring transition of lightning arrester 3, safe and reliable.The copper coin end of described copper-aluminium transition pressing plate 7 is connected with described copper conductor 4, and the aluminium sheet end of described copper to aluminum adapter bar 7 is connected with overhead wire 6.Because overhead wire is steel reinforced aluminium conductor, in prior art, the leading-in end connecting line of lightning arrester is used aluminum steel, but aluminum steel is easily oxidized, and strength decreased easily ruptures when the thunder-strike current by larger, causes dangerous accident.In this programme, by copper conductor, replaced aluminum steel of the prior art, the non-oxidizability of copper is strong, is difficult for oxidizedly, and mechanical strength is large, and what in the time of can be because of thunderbolt, produce ruptures compared with the large function of current, and reliability is high, and security performance is good.But material (the being steel reinforced aluminium conductor) difference due to aluminum conductor and overhead wire, can not directly be connected with copper cash, therefore copper conductor is connected with overhead wire by copper-aluminium transition pressing plate, with regard to having solved the latter linked problem of replacing copper conductor, has greatly improved security performance like this.
As preferential embodiment, the cross-sectional area of described copper conductor 4 is 50mm2, easy fracture not only, and resistance is less, can not produce a large amount of heats while producing thunder-strike current, and security performance is high, and easy fracture not, has improved useful life.
As other embodiment, the copper conductor between the desirable 25-100mm2 of the cross-sectional area of described copper conductor 4.
embodiment bis-
The present embodiment provides a kind of cable termination seat formula lightning arrester, as shown in Figure 2, for desk-top setting, comprise lightning arrester 3, described lightning arrester 3 is fixed on the supporting traverse 8 of installing cables terminal, and described supporting traverse 8 is horizontally fixed on shaft tower, and described supporting traverse 8 is the iron of rectifying, described cable termination 5 is fixed on described supporting traverse 8 by shim, and described lightning arrester 3 is arranged side by side on described supporting traverse 8 with described cable termination 5.Described lightning arrester 3 earth terminals are connected with tower grounding line (not shown), and the leading-in end of described lightning arrester 3 is connected with copper conductor 4, and described copper conductor 4 is connected with overhead wire 6 by copper-aluminium transition pressing plate 7, on described overhead wire 6, is connected with cable termination 5.Described copper conductor 4 one end are provided with binding post, and described binding post is connected with the leading-in end of described lightning arrester 3.More convenient while installing at the scene.
As preferred embodiment, the earth terminal of described lightning arrester is connected with tower grounding line by the polyethylene insulated aerial line 1 of 10kV.Wind area is little, is subject to the impact of wind-force little, and the polyethylene sheath resistance to corrosion of insulated cable is strong, and stable performance, while also effectively having prevented wind and the friction of lightning arrester coupling part.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And the apparent variation of being extended out thus or change are still among the protection range in the invention.
Claims (10)
1. a cable termination lightning arrester, comprise lightning arrester, described lightning arrester is fixed on support, described arrester ground end is connected with tower grounding line, it is characterized in that: the leading-in end of described lightning arrester is connected with copper conductor, described copper conductor is connected with overhead wire by copper-aluminium transition pressing plate, on described overhead wire, is connected with cable termination.
2. cable termination lightning arrester according to claim 1, is characterized in that: the metallic plate that described copper-aluminium transition pressing plate is aluminium for Wei Tong, one end, one end of being passed through thermal weld by aluminium sheet and copper coin and forming.
3. cable termination lightning arrester according to claim 1, is characterized in that: the copper coin end of described copper-aluminium transition pressing plate is connected with described copper conductor, and the aluminium sheet end of described copper to aluminum adapter bar is connected with overhead wire.
4. cable termination lightning arrester according to claim 1, is characterized in that: described copper conductor one end is provided with binding post, and described binding post is connected with the leading-in end of described lightning arrester.
5. cable termination lightning arrester according to claim 1, is characterized in that: the earth terminal of described lightning arrester is connected with tower grounding line by the polyethylene insulated aerial line of 10kV.
6. cable termination lightning arrester according to claim 1, is characterized in that: described lightning arrester is suspended on described support.
7. cable termination lightning arrester according to claim 1, is characterized in that: described lightning arrester is fixed on the supporting traverse of installing cables terminal, and described supporting traverse is horizontally fixed on shaft tower.
8. cable termination lightning arrester according to claim 7, is characterized in that: described cable termination and described lightning arrester are arranged side by side on described supporting traverse.
9. according to the cable termination lightning arrester described in claim 1 or 2 or 4 or 5, it is characterized in that: the cross-sectional area scope of described copper conductor is 25-100mm
2.
10. cable termination lightning arrester according to claim 9, is characterized in that: the cross-sectional area of described copper conductor is 50mm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724805.1U CN203445579U (en) | 2013-11-15 | 2013-11-15 | Lightning protection device for cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724805.1U CN203445579U (en) | 2013-11-15 | 2013-11-15 | Lightning protection device for cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203445579U true CN203445579U (en) | 2014-02-19 |
Family
ID=50096598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724805.1U Expired - Fee Related CN203445579U (en) | 2013-11-15 | 2013-11-15 | Lightning protection device for cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203445579U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840421A (en) * | 2013-11-15 | 2014-06-04 | 国网山东省电力公司青岛供电公司 | Cable terminal lightning arrester |
| CN111478265A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | Flexible supporting platform for remotely monitoring state of cable terminal |
| CN111478266A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | High voltage power tower cable dry terminal sitting support device |
| CN111478264A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | Rigid supporting platform for remotely monitoring state of cable terminal |
| CN111478267A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | Cable dry-type terminal strutting arrangement with unmanned aerial vehicle platform that charges that rises and falls |
-
2013
- 2013-11-15 CN CN201320724805.1U patent/CN203445579U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840421A (en) * | 2013-11-15 | 2014-06-04 | 国网山东省电力公司青岛供电公司 | Cable terminal lightning arrester |
| CN111478265A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | Flexible supporting platform for remotely monitoring state of cable terminal |
| CN111478266A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | High voltage power tower cable dry terminal sitting support device |
| CN111478264A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | Rigid supporting platform for remotely monitoring state of cable terminal |
| CN111478267A (en) * | 2020-04-28 | 2020-07-31 | 国家电网有限公司 | Cable dry-type terminal strutting arrangement with unmanned aerial vehicle platform that charges that rises and falls |
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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: 20140219 Termination date: 20191115 |