CN204464915U - Transmission line of alternation current steel tower - Google Patents
Transmission line of alternation current steel tower Download PDFInfo
- Publication number
- CN204464915U CN204464915U CN201520206105.2U CN201520206105U CN204464915U CN 204464915 U CN204464915 U CN 204464915U CN 201520206105 U CN201520206105 U CN 201520206105U CN 204464915 U CN204464915 U CN 204464915U
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- Prior art keywords
- transmission line
- insulator
- lightning
- thunder insulator
- wire
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 239000012212 insulator Substances 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 11
- 208000025274 Lightning injury Diseases 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 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 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000557133 Hunnemannia fumariifolia Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
Abstract
The utility model discloses a kind of transmission line of alternation current steel tower, comprise the cross-arm on tower body and its top, the two ends, downside of cross-arm and middle part are connected to anti-thunder insulator, phase conductor during the anti-thunder insulator lower end difference fillet phase conductor at two ends, middle anti-thunder insulator lower end connect, the waist of tower body installs a composite fiber overhead ground wire.Anti-thunder insulator suspention wire; make it have suspention, insulation function and lightning protection function concurrently simultaneously; when thunderbolt is attacked directly in shaft tower or wire; lightning overvoltage can make anti-thunder insulator action; apparatus with shock absorbing; play to clamp down on to overvoltage and do in order to protect whole insulator to avoid flashover, avoid transmission line to trip, improve power supply reliability.Composite fiber overhead ground wire is positioned at the below of three-phase conducting wire, normal power communication function can be realized, the lightning overvoltage on anti-thunder insulator can be reduced again due to coupling, improve lightning withstand level further, effective reduction transmission line lightning stroke tripping operation number of times, improves power supply reliability.
Description
Technical field
The utility model relates to a kind of transmission line of alternation current steel tower, is specifically related to the lightning protection structure of a kind of transmission line of alternation current steel tower.
Background technology
Electrical network coverage is broad, and a lot of transmission line will pass through the region that some thunders and lightnings take place frequently.When meeting with Thunderstorm Weather, transmission line is easy to lightning stroke flashover occurs and causes trip accident, and statistics shows, transmission line lightning stroke tripping operation number of times exceedes 50% of total tripping operation number of times, is the biggest threat factor of electric power netting safe running.
For power transmission line lightning shielding protection, existing the most frequently used method installs overhead ground wire on steel tower, and its Main Function is that the wire of protection below prevents from attacked directly by thunder and lightning.Overhead ground wire need be installed on the special earth wire support in steel tower top.Earth wire support not only needs to consume tower material, and also in some cold districts may earth wire support be caused to rupture because the serious icing of overhead ground wire in winter is difficult to eliminate and damage, and causes power failure.
In recent years also risen and installed the leakage conductor lightening arresting method in parallel with insulator additional at electric power line pole tower, but newly-increased leakage conductor needs to increase new fixture on original shaft tower, and existing line lightning arrester size is long, the requirement of shaft tower window can not be met, there is the shortcoming that erection difficulty is large and cost of investment is high.
Utility model content
The purpose of this utility model is to provide one can ensure transmission line lightning protection effect thus improves power supply reliability, can reduce again the iron tower structure of transmission line construction investment.
The utility model discloses a kind of transmission line of alternation current steel tower, comprise the cross-arm on tower body and its top, tower body is equiped with composite fiber overhead ground wire, the two ends, downside of cross-arm and middle part are connected to anti-thunder insulator, phase conductor during the anti-thunder insulator lower end difference fillet phase conductor at two ends, middle anti-thunder insulator lower end connect.
Described composite fiber overhead ground wire is installed in the waist of described tower body.
The utility model adopts anti-thunder insulator to suspend wire in midair; make it have suspention, insulation function and lightning protection function concurrently simultaneously; when thunderbolt is attacked directly in shaft tower or wire; lightning overvoltage can make anti-thunder insulator action; apparatus with shock absorbing, plays to overvoltage the effect of clamping down on, thus protects whole insulator to avoid flashover; avoid causing transmission line trip accident, improve power supply reliability.Composite fiber overhead ground wire is directly installed in the waist of tower body, be positioned at the below of three-phase conducting wire, normal power communication function can be realized, the lightning overvoltage on anti-thunder insulator can be reduced again due to coupling, further raising lightning withstand level, effective reduction transmission line lightning stroke tripping operation number of times, improves power supply reliability.
Composite fiber overhead ground wire is directly installed on the waist of steel tower tower body, eliminates earth wire support and a common overhead ground wire at prior art steel tower top, saves material resources manpower, also eliminates the return loss that prior art two overhead ground wires are formed; The mechanical strength of tower body, much larger than the intensity of earth wire support, improves the resistance to ice ability of composite fiber overhead ground wire greatly, thus the overall anti-ice ability improving transmission line, improve power supply reliability further.The installation site of composite fiber overhead ground wire is also convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
Embodiment
As shown in Figure 1, the utility model discloses a kind of transmission line of alternation current steel tower, comprise the cross-arm 2 on tower body 1 and its top, the two ends, downside of cross-arm 2 and middle part are connected to anti-thunder insulator 3, phase conductor 5 during the anti-thunder insulator 3 lower end difference fillet phase conductor 4 at two ends, middle anti-thunder insulator 3 lower end connect, the waist of tower body 1 is equiped with a composite fiber overhead ground wire 6.
When making steel tower, tower body and cross-arm all can adopt outsourcing piece, assemble as adopted the Hunan China tower material that manufacture of steel structure company produces energetically.The communication lightning-protection insulator that anti-thunder insulator buyable is produced as Hunan China province Xiang electricity Shi Yan Technology Co., Ltd..The steel reinforced aluminium conductor that three-phase conducting wire can adopt Chinese golden cup electrician Hengyang Cable Co., Ltd to produce.The conventional composite fiber overhead ground wire that composite fiber overhead ground wire can adopt Jiangsu Province, China Tong Guang optical cable Co., Ltd to produce.
Anti-thunder insulator is adopted to suspend wire in midair; make it have suspention, insulation function and lightning protection function concurrently simultaneously; when thunderbolt is attacked directly in shaft tower or wire; lightning overvoltage can make anti-thunder insulator action; apparatus with shock absorbing, plays to overvoltage the effect of clamping down on, thus protects whole insulator to avoid flashover; avoid causing transmission line trip accident, improve power supply reliability.Composite fiber overhead ground wire is directly installed in the waist of tower body, be positioned at the below of three-phase conducting wire, normal power communication function can be realized, the lightning overvoltage on anti-thunder insulator can be reduced again due to coupling, further raising lightning withstand level, effective reduction transmission line lightning stroke tripping operation number of times, improves power supply reliability.
Composite fiber overhead ground wire is directly installed on the waist of steel tower tower body, eliminates earth wire support and a common overhead ground wire at prior art steel tower top, saves material resources manpower, also eliminates the return loss that prior art two overhead ground wires are formed; The mechanical strength of tower body, much larger than the intensity of earth wire support, improves the resistance to ice ability of composite fiber overhead ground wire greatly, thus the overall anti-ice ability improving transmission line, improve power supply reliability further.The installation site of composite fiber overhead ground wire is also convenient to safeguard.
Claims (2)
1. a transmission line of alternation current steel tower, comprise the cross-arm on tower body and its top, tower body is equiped with composite fiber overhead ground wire, the two ends, downside of cross-arm and middle part are connected to insulator, phase conductor during the insulator lower end difference fillet phase conductor at two ends, middle insulator lower end connect, is characterized in that: described insulator is anti-thunder insulator.
2. transmission line of alternation current as claimed in claim 1 steel tower, is characterized in that: described composite fiber overhead ground wire is installed in the waist of described tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206105.2U CN204464915U (en) | 2015-04-08 | 2015-04-08 | Transmission line of alternation current steel tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206105.2U CN204464915U (en) | 2015-04-08 | 2015-04-08 | Transmission line of alternation current steel tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464915U true CN204464915U (en) | 2015-07-08 |
Family
ID=53671742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520206105.2U Active CN204464915U (en) | 2015-04-08 | 2015-04-08 | Transmission line of alternation current steel tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204464915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734102A (en) * | 2015-04-08 | 2015-06-24 | 国家电网公司 | Alternating current transmission line iron tower |
-
2015
- 2015-04-08 CN CN201520206105.2U patent/CN204464915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734102A (en) * | 2015-04-08 | 2015-06-24 | 国家电网公司 | Alternating current transmission line iron tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |