CN202268601U - Multi-tip lateral lightning rod for transmission line tower - Google Patents
Multi-tip lateral lightning rod for transmission line tower Download PDFInfo
- Publication number
- CN202268601U CN202268601U CN201120407026XU CN201120407026U CN202268601U CN 202268601 U CN202268601 U CN 202268601U CN 201120407026X U CN201120407026X U CN 201120407026XU CN 201120407026 U CN201120407026 U CN 201120407026U CN 202268601 U CN202268601 U CN 202268601U
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- support rod
- main
- branch
- tip
- main support
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Abstract
The utility model discloses a multi-tip lateral lightning rod for a transmission line tower. The multi-tip lateral lightning rod comprises a mounting wing and a main support rod, wherein one end of the main support rod is fixed on the mounting wing; a main tip is arranged at the other end of the main support rod; a branch support rod is vertically welded on each of the two sides of the main support rod close to the root of the main tip, and is parallel to a transmission line; a branch tip is arranged on the end part of the branch support rod on each side; the mounting wing is fixed on a cross arm of the tower; and one end of the main support rod is suspended beyond the end face of the cross arm, wherein the suspended end of the main support rod is provided with the main tip. The tip in a direction vertical to the line is preserved, and the two additional tips facing the direction of the line are arranged, so that high-frequency lightning current from the lateral surfaces of the transmission line can be absorbed, and lightning shielding failures of a relatively farer line can be avoided. The multi-tip lateral lightning rod has relatively higher capability of protecting the line relatively farer away from the tower, and is convenient to mount, stable, reliable and long in service life.
Description
Technical field
The utility model relates to a kind of lightning protection device that is used on the overhead transmission line, is specifically related to a kind of spininess point side direction lightning rod that is used for electric power line pole tower.
Background technology
Thunderbolt is the major reason that causes the overhead transmission line tripping operation, and direct lightning strike can be divided into counterattack and shielding usually.For back flashover, the earth resistance of shaft tower is the principal element that influences lightning withstand level, so can reach the purpose that improves transmission line counterattack lightning withstand level through reducing earth resistance usually.And for thunderbolt, its major influence factors is the lightning conducter shielding angle size of circuit, and shielding angle is more little usually, and the risk of shielding failure trip-out rate of circuit is more little.But for the circuit that has built up, it is very difficult reducing shielding angle through change tower head structure.Still lack effective shielding lightning protection measures at present, thereby cause the shielding trip-out rate of the higher mountain area transmission line of mountain area transmission line, especially electric pressure high, become the major hidden danger of electric power netting safe running.
The side direction lightning rod is that a kind of level is installed in the metal rod carefully on the electric power line pole tower cross-arm, and it is terminal that it is fixed on the cross-arm of shaft tower with angle steel usually, stretches out cross-arm perpendicular to line direction, is used for guardwire to exempt from the shielding of thunder and lightning.The side direction lightning rod utilizes the thunder effect of drawing of self will can hit the around shocking introducing shaft tower of lead originally, thereby transfers the device of strikeing back thunder to based on thunder and lightning guide principle.Because the amplitude of around shocking is less usually, so can not work the mischief after transferring the counterattack thunder to shaft tower and circuit.But conventional side direction lightning rod needle point is towards the circuit outside, and the limited length of shank, so the shielding protection range on its road along the line direction is merely near a bit of circuit of shaft tower.For distance overhead wire highway section far away slightly, conventional side direction lightning rod is difficult to play effective shielding protective effect.
The utility model content
In order to overcome existing side direction lightning rod shielding guard space problem of smaller; The purpose of the utility model is to provide a kind of spininess point side direction lightning rod that is used for electric power line pole tower; Realize the lifting of guard space aspect, to reach the purpose of improving shielding protection effect.
In order to solve the problems of the technologies described above; The utility model is realized through following technical scheme: a kind of spininess point side direction lightning rod that is used for electric power line pole tower comprises the wing and main support rod is installed that an end of main support rod is fixed on to be installed on the wing; The other end of main support rod is provided with main needle point; Main support rod both sides near main needle point root are respectively equipped with branch's support bar, and branch's support bar is parallel with power transmission line, and the end of branch's support bar of both sides is equipped with branch's needle point; Be fixed on above the cross-arm of shaft tower the wing is installed, main support rod is suspended on outside the end face of cross-arm at an end that is provided with main needle point.
Preferably, the distance between the tip of said main needle point and the cross-arm end face is 2～5m; Distance between the main needle point tip on said two branch's support bars and the main support rod is 0.3～0.7m; The tip of described two branch's needle points and the distance between the main support rod are 1～2m.
Preferably, the said installation wing is provided with the ground lead connecting hole, and the ground lead connecting hole is connected with ground lead.
Preferably, the described installation wing, main support rod, main needle point, two branch's support bars and two branch's needle surfaces all are covered with the copper layer.
Preferably, said branch support bar is welded on the main support rod.
Compared with prior art; The utility model has the advantages that: because circuit is the multiple section of thunderbolt accident near the shaft tower; Therefore in the end of shaft tower cross-arm installation side to lightning rod; Can reduce the shielding accident that occurs on the overhead transmission line effectively, the lightning conducter shielding angle that need not to adjust circuit can reach the purpose that reduces circuit shielding trip-out rate; The utility model has been set up two needle points towards line direction in the needle point that keeps the horizontal path direction, thus not only can effectively absorb high frequency lightning current from the transmission line side, can also be to shielding than the shielding that takes place on the circuit of distant place.According to thunder and lightning guide principle; Though towards the distance of the needle point of line direction and crossover location 1～2m only; But can increase the protection range of side direction lightning rod effectively, improve the shielding protection effect of side direction lightning rod more significantly, thereby reduce the shielding trip-out rate of circuit the both sides circuit; The side direction lightning rod is provided with the installation wing that is used for fixing, and pass the location hole of installing on the wing through several bolts the side direction lightning rod is fixedly secured on the crosspiece of shaft tower, so reliable installation, easy construction; Side direction lightning rod integral surface is coated with the copper layer, is difficult for wearing out, and therefore has the advantage of long service life.
Description of drawings
Fig. 1 is the plan structure sketch map of the utility model.
Fig. 2 is that the application example of the utility model on the double back transmission line shaft tower executed sketch map.
Embodiment
As shown in Figure 1, comprise the wing 1 and main support rod 4 be installed that an end of main support rod 4 is fixed on to be installed on the wing 1; The other end of main support rod 4 is provided with main needle point 6; Main needle point 6 is used to absorb the lightning current near the circuit side surface direction shaft tower, near main support rod 4 both sides of main needle point 6 roots respectively vertical welding be connected to branch's support bar 5, branch's support bar 5 is parallel with power transmission line; Branch's support bar 5 has the effect of the lightning conductor protection distance that is increased on the line direction; The end of branch's support bar 5 of both sides is equipped with branch's needle point 7, and branch's needle point 7 is used to absorb the around shocking that takes place on the direction of road along the line, strengthens the side direction lightning rod to the thunder effect of drawing of circuit at a distance.The wing 1 is installed is fixed on above the cross-arm 8 of shaft tower, main support rod 4 is suspended on outside the end face of cross-arm 8 at an end that is provided with main needle point 6.
The both sides of the described installation wing 1 are provided with six identical location holes 2 that are uniformly distributed with, and the wing 1 are installed through passing being bolted on the cross-arm 8 of location hole 2, guarantee that lightning rod can not slide.
Distance L between the tip of said main needle point 6 and the cross-arm end face is 2～5m, has both guaranteed enough thunder effects of drawing, and guarantees can not cause because of shank weight is excessive to install unstable again; Between main needle point 6 tips on said two branch's support bars 5 and the main support rod 4 is 0.3～0.7m apart from d; Distance B between the tip of described two branch's needle points 7 and the main support rod 4 is 1～2m.
The described installation wing 1 is provided with ground lead connecting hole 3, and ground lead connecting hole 3 is connected with ground lead 9, thereby the high energy lightning current that lightning rod absorbs is released into ground through ground lead 9.
The described installation wing 1, main support rod 4, main needle point 6, two branch's struts 5 and two branch's prong 7 surfaces all are covered with the copper layer.
Described main support rod 4 is the round steel of diameter 16-20mm.
As shown in Figure 2, the utility model can be protected the negative angle of Square wire under the side direction lightning rod through the shielding realization of lightning rod needle point under the prerequisite that does not change the lightning conducter position, significantly reduces the shielding trip-out rate.Because the utility model has increased branch's needle point 7 of road along the line direction, makes the more conventional side direction lightning rod of the utility model have greater advantages aspect the shielding guard space, can guard space shaft tower overhead power transmission road more at a distance.Copper plating treatment is all adopted on the utility model surface, and long service life is easy installation and reliable, has the certain economic advantage.
The above is merely the specific embodiment of the utility model; But the technical characterictic of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (5)
1. spininess point side direction lightning rod that is used for electric power line pole tower; Comprise the wing (1) and main support rod (4) are installed; One end of main support rod (4) is fixed on to be installed on the wing (1), and the other end of main support rod (4) is provided with main needle point (6), it is characterized in that: main support rod (4) both sides near main needle point (6) root are respectively equipped with branch's support bar (5); Branch's support bar (5) is parallel with power transmission line; The end of branch's support bar (5) of both sides is equipped with branch's needle point (7), will install above the cross-arm (8) that the wing (1) is fixed on shaft tower, and main support rod (4) is suspended on outside the end face of cross-arm (8) at an end that is provided with main needle point (6).
2. a kind of spininess point side direction lightning rod that is used for electric power line pole tower according to claim 1, it is characterized in that: the distance between the tip of said main needle point (6) and cross-arm (8) end face is 2～5m; Distance between main needle point (6) tip on said two branch's support bars (5) and the main support rod (4) is 0.3～0.7m; Distance between the tip of described two branch's needle points (7) and the main support rod (4) is 1～2m.
3. a kind of spininess point side direction lightning rod that is used for electric power line pole tower according to claim 1, it is characterized in that: the said installation wing (1) is provided with ground lead connecting hole (3), and ground lead connecting hole (3) is connected with ground lead (9).
4. a kind of spininess point side direction lightning rod that is used for electric power line pole tower according to claim 1, it is characterized in that: the described installation wing (1), main support rod (4), main needle point (6), two branch's support bars (5) and two branch's needle points (7) surface all are covered with the copper layer.
5. like each described a kind of spininess point side direction lightning rod that is used for electric power line pole tower in the claim 1 to 4, it is characterized in that: said branch support bar (5) is welded on the main support rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120407026XU CN202268601U (en) | 2011-10-24 | 2011-10-24 | Multi-tip lateral lightning rod for transmission line tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120407026XU CN202268601U (en) | 2011-10-24 | 2011-10-24 | Multi-tip lateral lightning rod for transmission line tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202268601U true CN202268601U (en) | 2012-06-06 |
Family
ID=46159385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120407026XU Expired - Lifetime CN202268601U (en) | 2011-10-24 | 2011-10-24 | Multi-tip lateral lightning rod for transmission line tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202268601U (en) |
-
2011
- 2011-10-24 CN CN201120407026XU patent/CN202268601U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |