CN201435593Y - Earth wire support of transmission tower - Google Patents
Earth wire support of transmission tower Download PDFInfo
- Publication number
- CN201435593Y CN201435593Y CN2009201610606U CN200920161060U CN201435593Y CN 201435593 Y CN201435593 Y CN 201435593Y CN 2009201610606 U CN2009201610606 U CN 2009201610606U CN 200920161060 U CN200920161060 U CN 200920161060U CN 201435593 Y CN201435593 Y CN 201435593Y
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- plane
- lower plane
- line bracket
- going
- iron tower
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 118
- 229910052742 iron Inorganic materials 0.000 claims description 62
- 229910000831 Steel Inorganic materials 0.000 claims description 13
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- 239000000463 material Substances 0.000 claims description 9
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- 230000015572 biosynthetic process Effects 0.000 claims description 7
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- 238000007789 sealing Methods 0.000 claims description 4
- 150000002505 iron Chemical class 0.000 description 6
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- 239000012212 insulator Substances 0.000 description 3
- 241000272165 Charadriidae Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- 206010021750 Infantile Spasms Diseases 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- 229910052737 gold Inorganic materials 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model discloses an earth wire support of a transmission tower, which relates to the field of transmission towers. The earth wire support is horizontally arranged on a transmission tower of1000 kilovolts and comprises an upper plane and a lower plane which both have a truss structure, and a wedge body formed by the two side planes, as well as at least one supporting plane arranged inside the wedge body, wherein the upper plane is connected with one end of the lower plane; the supporting plane is vertical to the upper plane; and the distance from the connecting position of the upperplane and the lower plane to the vertical central line of the tower is equal to or larger than that from a lead hung at the outermost end of the tower to the vertical central line of the tower. As the cantilever length of the earth wire support is enough, the protecting angle of the earth wire can be guaranteed to meet the project requirements, thus being capable of effectively conducting protection against lightning on an ultra-high voltage transmission line of 1000 kilovolts; and simultaneously, as the supporting plane is arranged in the earth wire support, the problems of bearing capacity,distortion resistance and the like caused by overlong cantilever can be effectively solved.
Description
Technical field
The utility model relates to the electric power pylon field, particularly a kind of ground line bracket of electric power pylon.
Background technology
At present, transmission line generally adopts electric power pylon that lead is suspended on the space, makes between the asking of lead and lead, lead and the ground wire, between lead and the tower, keep certain safe distance between lead and the ground obstacle, finishes the transmission of electricity task.The lead that wherein is used for transmission of electric energy generally hangs on the cross-arm of electric power pylon by insulator.Couple together by power station, transformer station, the load point of overhead transmission line, carry or the exchange electric energy, constitute the electric power networks or the power distribution network of various electric pressures different regions.The advantage of this transmission line is that cost is low, and construction maintenance is convenient, thereby is widely adopted.
Because overhead transmission line is exposed in the atmospheric environment, can directly be subjected to the effect of meteorological condition, lightning attacks, drenches with rain, wet fog and nature and industrial filth etc. also all can destroy or reduce the dielectric strength of overhead transmission line even cause power outage.In addition, also there is electromagnetic interference problem in overhead transmission line.These factors all must take in design, operation and the maintenance of overhead transmission line.Especially easily be struck by lightning and cause and send electricity to interrupt, become the one of the main reasons that power outage takes place in the present electric power system, adopted usually,, improved the fail safe of circuit operation to reduce the damage to crops caused by thunder accident with the built on stilts lightning protection that carries out of ground wire.
For transmission line; transmission line capability is a very important index; at present; the transmission line capability of transmission line is generally between 110kV and 500kV; if will further improve the transmission line capability of transmission line; even to design UHV transmission line; for electric power pylon strict more engineering objective has been proposed; especially; need to increase the cross-arm length that is used to hang lead; to guarantee between lead and the lead; between lead and the ground wire; safer electric clearance between lead and the tower; the increase of cross-arm length will cause the increase of lightning protection area, and ground wire will be suspended on the ground line bracket of 110kV～500kV electric power pylon; the area of lightning protection is very limited, can't satisfy the UHV transmission iron tower to the demand than the large tracts of land lightning protection.
The utility model content
The ground line bracket of a kind of electric power pylon that the utility model provides is to solve the problem of lightning protection in the UHV transmission line.
The utility model provides a kind of ground line bracket of electric power pylon, be horizontally placed on 1000 kilovolts of electric power pylons, comprise by the last plane, the lower plane that are truss structure, reach the sphenoid of two side planes formations and be arranged at least one interior supporting plane of described sphenoid; The wherein said plane of going up links to each other with lower plane one end; Described supporting plane is perpendicular to the described plane of going up;
Two described side planes are arranged at respectively between the side of described upward plane and lower plane homonymy; The face relative with junction, upper and lower plane is provided with for open, is used for linking to each other with described iron tower;
The distance of the junction on described upper and lower plane and described iron tower vertical center line is equal to or greater than the lead that hangs on described iron tower outermost end and the distance of described iron tower vertical center line.
Described supporting plane comprises:
Constitute four side rods on described supporting plane four limits, four described side rods are connected to described going up on plane, lower plane and two side planes; With
At least one support bar, described support bar are arranged between two described side rods, or are arranged at along diagonal between two summits of described supporting plane.
Described supporting plane is arranged at the center of described sphenoid.
The described shape that goes up plane and described lower plane is specially trapezoidal.
The described plane of going up comprises two mobile jibs that constitute two sides, and is arranged in two web members between the described mobile jib;
Described lower plane comprises two mobile jibs that constitute two sides, and is arranged in two web members between the described mobile jib;
Described side plane comprises the web member between two mobile jibs that are arranged in plane and lower plane homonymy.
Described web member sealing of going up the plane is provided with; The web member of described lower plane is open to be provided with.
The mobile jib on described upward plane and web member all adopt and are subjected to dead-wood; The mobile jib of described lower plane adopts and is subjected to dead-wood, and web member adopts the auxiliary material that does not stress; The web member of two described side planes adopts the auxiliary material that does not stress; The described member of going up plane, lower plane, side plane and supporting plane all adopts angle steel.
The described angle of going up plane and lower plane formation satisfies preset range, and described preset range can support the described plane of going up in order to guarantee described lower plane.
Described preset range is more than or equal to 15 degree.
The described plane of going up is connected by bolt with described lower plane, or the described plane of going up is connected by at least one connecting rod that is provided with perpendicular to described upward plane with described lower plane.
The ground line bracket of a kind of electric power pylon that the utility model provides; beneficial effect is: the ground line bracket that is applied to 1000KV UHV transmission iron tower that the utility model provides; because on described; the distance of the junction of lower plane and described iron tower vertical center line; be equal to or greater than the lead that hangs on described iron tower outermost end and the distance of described iron tower vertical center line; promptly the jib-length of line bracket is enough big; with satisfy in the UHV transmission iron tower than the demand of large tracts of land lightning protection; thereby guarantee to be suspended on the ground wire on this ground line bracket; can effectively carry out lightning protection to the 1000KV UHV transmission line; simultaneously; owing to be provided with supporting plane at the ground wire internal stent, thereby can effectively solve problems such as long bearing capacity that causes of cantilever and antitorque deformability.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The stereogram of a kind of electric power pylon ground line bracket that Fig. 1 provides for the utility model embodiment;
A kind of supporting plane structure chart that Fig. 2 provides for the utility model embodiment;
The front view of a kind of electric power pylon ground line bracket that Fig. 3 provides for the utility model embodiment;
The vertical view of a kind of electric power pylon ground line bracket that Fig. 4 provides for the utility model embodiment;
The upward view of a kind of electric power pylon ground line bracket that Fig. 5 provides for the utility model embodiment;
The structural representation of ground wire stent applications on strain resistant UHV transmission iron tower that Fig. 6 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model execution mode is described in further detail below in conjunction with accompanying drawing.
In the lump referring to Fig. 1 to Fig. 5, the utility model embodiment provides a kind of ground line bracket of electric power pylon, can be applicable to be arranged at the top of iron tower usually on the 1000 kilovolt high voltage power transmission iron towers, and be positioned at cross-arm directly over, the ground wire support level in the present embodiment is arranged on the iron tower.
Present embodiment provides is applied to ground line bracket on the 1000KV UHV transmission iron tower, comprise by last plane 101, lower plane 102, and two sphenoids that side plane 103 constitutes, with at least one supporting plane 104 that is arranged in the described sphenoid, supporting plane 104 also can be called support every face on engineering.
Wherein going up plane 101 links to each other with lower plane 102 1 ends 105; Supporting plane 104 is provided with perpendicular to last plane 101; Last plane 101, lower plane 102 and side plane 103 are truss structure, and truss structure is a kind of structure of latticeization, i.e. the planar structure of being made up of straight-bar that generally has triangular element.
Usually adopt the reason of GD type link plate and electric power pylon structure owing to electric tower gold utensil, line bracket is actual will bear certain bending moment and moment of torsion on ground, desirable hinged different during with Theoretical Calculation, for this reason, be arranged at least one supporting plane 104 in the above-mentioned sphenoid, can make the ground wire support can have whole preferably torsional rigidity, the extra unfavorable load that may occur when resisting actual load-bearing.
Two side planes 103 are arranged at respectively between the side of plane 101 and lower plane 102 homonymies; The face relative with junction, upper and lower plane 105 is provided with for open, do not seal, and is used for linking to each other with the UHV transmission iron tower.
When the last plane 101 of local line bracket is arranged on the iron tower in horizontal direction; the junction 105 on the upper and lower plane of line bracket, ground and the distance of iron tower vertical center line; the ground wire that hangs on the ground line bracket is equal to or greater than the lead that hangs on this iron tower outermost end and the distance of this iron tower vertical center line, so that can effectively carry out lightning protection to the lead of making somebody a mere figurehead.Preferably, when the ground wire shielding angle was-5 °, the ground wire that can guarantee to hang on the ground line bracket can carry out lightning protection to built on stilts lead, can reduce steel quantity consumption again.Be-5 ° requirement in order on engineering, to satisfy the ground wire shielding angle; when the last plane 101 with the ground line bracket is arranged on the iron tower in horizontal direction; the junction 105 on line bracket upper and lower plane, ground and the distance of iron tower vertical center line are a bit larger tham the lead that hangs on this iron tower outermost end and the distance of this iron tower vertical center line.Wherein the ground wire shielding angle is meant the straight line that ground wire hitch point and outermost end lead hitch point constitute, angle with vertical direction, custom is with the distance of ground wire hitch point and electric power pylon vertical center line on the engineering, greater than outermost end lead hitch point and electric power pylon vertical center line apart from the time, the ground wire shielding angle of formation is called negative angle; Accordingly, custom is the distance of ground wire hitch point and electric power pylon vertical center line, less than outermost end lead hitch point and electric power pylon vertical center line apart from the time, the ground wire shielding angle of formation is called positive-angle.
For 1000KV UHV transmission iron tower, in order to guarantee safe electric clearance, hanging on the lead of outermost end on the described iron tower and the distance of this iron tower vertical center line need reach more than 15 meters, usually between 15 meters～20 meters, therefore, the junction 105 on line bracket upper and lower plane, ground also requires to reach more than 15 meters with the distance of iron tower vertical center line, such as in the engineering commonly used to length have about 19.2 meters etc.
Referring to Fig. 2, the structure of above-mentioned supporting plane can include: four side rods 201 and at least one support bar 202 that constitute these supporting plane four limits; Wherein four side rods 201 link to each other with last plane 101, lower plane 102 and two side planes 103 respectively, support bar 202 can be arranged between two side rods 201, such as up and down between two side rods, between adjacent two side rods or the like, also can be arranged between two diagonal angles of supporting plane, the structure of supporting plane shown in Figure 2 is the structure of comparative optimization, the supporting plane support effect of this kind structure is better, and steel quantity consumption is also lower comparatively speaking.Described supporting plane 104 preferred positions are perpendicular to last plane 101, to be arranged at the center of this ground line bracket, at this moment because stressed comparatively equilibrium can be played whole antitorque effect preferably.
The above-mentioned shape that goes up plane 101 and lower plane 102 preferably can be trapezoidal, along narrowing down gradually with the outward extending direction of UHV transmission iron tower link, and other shapes relatively, steel quantity consumption is lower.
Be last plane 101, lower plane 102 and the side plane 103 of truss structure, concrete structure can be that last plane 101 comprises two mobile jibs that constitute two sides, and is arranged in two web members between the mobile jib; Lower plane 102 also comprises two mobile jibs that constitute two sides, and is arranged in two web members between the mobile jib; Side plane 103 comprises the web member between two mobile jibs that are arranged in plane and lower plane homonymy.
Preferably, the ground line bracket that the utility model embodiment provides, to go up plane 101 is provided with in horizontal direction, be connected on the UHV transmission iron tower, so the longitudinal unbalance tension force that the ground line bracket need bear is mainly by the transmission of last plane, so in order effectively to increase stress-bearing capability, the web member employing sealing setting on last plane 101, and in order to reduce steel quantity consumption, the web member of lower plane 102 can be opened setting.
For further reducing steel quantity consumption, can use relative not too stressed part in the ground line bracket instead do not stress auxiliary material and realize that concrete can be that the mobile jib on last plane and web member all adopt and be subjected to dead-wood; The mobile jib of described lower plane adopts and is subjected to dead-wood, and web member adopts the auxiliary material that does not stress; The web member of two side planes adopts the auxiliary material that does not stress.
The ground line bracket that the utility model embodiment provides, member of plane 101, lower plane 102, side plane 103 and supporting plane 104 all adopts angle steel to realize on it, and is preferred, can adopt equal leg angle to realize.
In addition, after the inventor tests through a large amount of force analysis, find that included angle A (referring to Fig. 3) when last plane 101 and lower plane 102 formation is when satisfying preset range, lower plane 102 can play supporting role preferably to last plane 101, so that the longitudinal unbalance tension force that the ground line bracket bears is mainly transmitted by last plane 101, be that described preset range can be played a supporting role to last plane 101 in order to guarantee lower plane 102, this preset range is preferably more than or equal to 15 degree.Obviously, the included angle A that last plane 101 and lower plane 102 form is an acute angle, could guarantee to form sphenoid between plane 101 and lower plane 102 and two side planes 103, is connected on the iron tower.In actual applications, can be according to concrete applied environment, the size of included angle A between plane 101 and the lower plane 102 on the choose reasonable ground line bracket.
The situation that last plane 101 and lower plane 102 are connected by connecting rod, preferably be applied between plane 101 and the lower plane 102 angle less than 15 the degree situations, can increase the included angle A that goes up between plane 101 and the lower plane 102 this moment by increasing the length of connecting rod.
The ground line bracket that the utility model embodiment provides adopts bolt to connect between each member of plane 101, lower plane 102, side plane 103 and supporting plane 104 on it.
For 1000KV UHV transmission iron tower, because the jib-length of ground line bracket is very big, just bearing capacity, antitorque deformability and the steel quantity consumption of line bracket have proposed very high requirement over the ground for these.Among the utility model embodiment, adopt following technological means simultaneously, to satisfy the new requirement of bearing capacity, antitorque deformability and the steel quantity consumption proposition of line bracket over the ground: at the ground wire internal stent supporting plane is set such as adopting, to improve antitorque deformability; Web member on plane adopts sealing setting on it, and goes up the mobile jib on plane and web member and all adopt and be subjected to dead-wood, and lower plane only mobile jib adopts and is subjected to dead-wood, with effective increase stress-bearing capability; The web member of lower plane does not seal setting, and adopts the auxiliary material that does not stress, and the web member of two side planes also adopts the auxiliary material that does not stress, to reduce steel quantity consumption.
The ground line bracket that is applied to 1000KV UHV transmission iron tower that the utility model embodiment provides; because on described; the distance of the junction of lower plane and described iron tower vertical center line; be equal to or greater than the lead that hangs on described iron tower outermost end and the distance of described iron tower vertical center line; promptly the jib-length of line bracket is enough big; with satisfy in the UHV transmission iron tower than the demand of large tracts of land lightning protection; thereby guarantee to be suspended on the ground wire on this ground line bracket; can effectively carry out lightning protection to the 1000KV UHV transmission line; simultaneously; owing to be provided with supporting plane at the ground wire internal stent, thereby can effectively solve problems such as long bearing capacity that causes of cantilever and antitorque deformability.
In addition, because it is bigger to be used for the electric energy that lead transported of transmission of electric energy, cause electromagnetic interference also bigger, such as near the thundercloud lead during to ground discharge, can on lead, cause big electric induction voltage etc., the ground line bracket that adopts the utility model embodiment to provide is suspended on ground wire in the air, can also effectively solve the electromagnetic interference problem of UHV transmission iron tower.
The ground line bracket that the utility model embodiment provides can be applied on the single loop strain resistant 1000KV UHV transmission iron tower, on the linear pattern 1000KV UHV transmission iron tower of double loop, on the drum type 1000KV UHV transmission iron tower of double loop or the like.
Referring to Fig. 6, be the ground line bracket 601 that the utility model embodiment is provided, be arranged at a kind of application on the strain resistant 1000KV UHV transmission iron tower, in actual applications, normally on the UHV transmission iron tower, use two ground line brackets.
The ground wire support level is arranged at the top of UHV transmission iron tower, be arranged on the longest cross-arm of cantilever directly over, promptly the direction that is provided with that the longest cross-arm of direction and cantilever is set of this ground line bracket is consistent.Cross-arm is used for the lead of electric energy transmitting is suspended in the air, generally in the cross-arm outermost insulator string is set, and lead frame on insulator string, is realized electric energy transmitting.Normal conditions; electric power pylon all can have a plurality of cross-arms; and the jib-length of each cross-arm differ establish a capital identical; and each cross-arm that direction is set is also different; such as; using maximum sights at present is that a pair of cross-arm is symmetricly set in iron tower equal height place; can be distributed with many from top to bottom to cross-arm; three pairs of cross-arms 602 are symmetricly set on the electric power pylon respectively shown in Fig. 6; divide three layers of distribution, preferred, with two the ground line brackets 601 also top that is arranged at the UHV transmission iron tower of symmetry; its direction that is provided with that direction and every pair of cross-arm 602 are set is consistent, thereby can well carry out reliable lightning protection to the lead on the UHV transmission iron tower.
Ground wire can be suspended on the outermost end of ground line bracket, such as hanging by connector, wherein connector can be a suspension type wire clamp etc.Here; the ground wire of making somebody a mere figurehead is owing to be to be erected at protected lead top; when above lead, thundercloud discharge occurring; lightning at first hits and hangs skyborne ground wire; pass through earthing device; the electric current that lightning can be produced imports the earth, plays the effect of lightning protection with the lead to transmission of electric energy.Wherein earthing device is generally by the down conductor that connects ground wire and imbed the underground earth electrode of electric power pylon and form, and it mainly acts on and is, can rapidly lightning current be spread to let out in the earth to lead.
Here, with two ground line brackets 601 last plane be provided with in horizontal direction, be connected on the UHV transmission iron tower, and two line bracket 601 be separately positioned on symmetrical distribution cross-arm 602 directly over.The outermost end of ground line bracket (promptly goes up; the lower plane junction) with the distance D 1 of this iron tower vertical center line 603; can be equal to or greater than the distance D 2 of cross-arm 602 outermost end and iron tower vertical center line 603; D3 or D4; wherein lead is connected the outermost end of cross-arm 602 by insulating part; as preferably; the outermost end of ground line bracket 601 and the distance D 1 of iron tower vertical center line 603; the ultimate range D3 that is a bit larger tham cross-arm 602 outermost end and iron tower vertical center line 603; promptly on engineering, satisfy the ground wire shielding angle and be-5 ° requirement; like this; the lead that cross-arm hangs can both obtain effective lightning protection, and steel quantity consumption is also lower.
The ground line bracket that is applied to 1000KV UHV transmission iron tower that the utility model embodiment provides; because on described; the distance of the junction of lower plane and described iron tower vertical center line; be equal to or greater than the lead that hangs on described iron tower outermost end and the distance of described iron tower vertical center line; promptly the jib-length of line bracket is enough big; with satisfy in the UHV transmission iron tower than the demand of large tracts of land lightning protection; thereby guarantee to be suspended on the ground wire on this ground line bracket; can effectively carry out lightning protection to the 1000KV UHV transmission line; simultaneously; owing to be provided with supporting plane at the ground wire internal stent, thereby can effectively solve problems such as long bearing capacity that causes of cantilever and antitorque deformability.
In addition, because it is bigger to be used for the electric energy that lead transported of transmission of electric energy, cause electromagnetic interference also bigger, such as near the thundercloud lead during to ground discharge, can on lead, cause big electric induction voltage etc., the ground line bracket that adopts the utility model embodiment to provide is suspended on ground wire in the air, can also effectively solve the electromagnetic interference problem of UHV transmission iron tower.
Need to prove, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that the device of a series of key elements or equipment not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this device or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within the device that comprises described key element or the equipment and also have other identical element.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all be included in the protection range of the present utility model.
Claims (10)
1, a kind of ground line bracket of electric power pylon, it is characterized in that, be horizontally placed on 1000 kilovolts of electric power pylons, comprise by the last plane, the lower plane that are truss structure, reach the sphenoid of two side planes formations and be arranged at least one interior supporting plane of described sphenoid; The wherein said plane of going up links to each other with lower plane one end; Described supporting plane is perpendicular to the described plane of going up;
Two described side planes are arranged at respectively between the side of described upward plane and lower plane homonymy; The face relative with junction, upper and lower plane is provided with for open, is used for linking to each other with described iron tower;
The distance of the junction on described upper and lower plane and described iron tower vertical center line is equal to or greater than the lead that hangs on described iron tower outermost end and the distance of described iron tower vertical center line.
2, ground according to claim 1 line bracket is characterized in that, described supporting plane comprises:
Constitute four side rods on described supporting plane four limits, four described side rods are connected to described going up on plane, lower plane and two side planes; With
At least one support bar, described support bar are arranged between two described side rods, or are arranged at along diagonal between two summits of described supporting plane.
3, ground according to claim 1 line bracket is characterized in that, described supporting plane is arranged at the center of described sphenoid.
4, ground according to claim 1 line bracket is characterized in that, the described shape that goes up plane and described lower plane is specially trapezoidal.
5, ground according to claim 1 line bracket is characterized in that, the described plane of going up comprises two mobile jibs that constitute two sides, and is arranged in two web members between the described mobile jib;
Described lower plane comprises two mobile jibs that constitute two sides, and is arranged in two web members between the described mobile jib;
Described side plane comprises the web member between two mobile jibs that are arranged in plane and lower plane homonymy.
6, ground according to claim 5 line bracket is characterized in that, described web member sealing of going up the plane is provided with; The web member of described lower plane is open to be provided with.
7, ground according to claim 5 line bracket is characterized in that, the mobile jib on described upward plane and web member all adopt and be subjected to dead-wood; The mobile jib of described lower plane adopts and is subjected to dead-wood, and web member adopts the auxiliary material that does not stress; The web member of two described side planes adopts the auxiliary material that does not stress; The described member of going up plane, lower plane, side plane and supporting plane all adopts angle steel.
8, ground according to claim 1 line bracket is characterized in that, the described angle of going up plane and lower plane formation satisfies preset range, and described preset range can support the described plane of going up in order to guarantee described lower plane.
9, ground according to claim 8 line bracket is characterized in that, described preset range is more than or equal to 15 degree.
10, ground according to claim 1 line bracket is characterized in that, the described plane of going up is connected by bolt with described lower plane, or the described plane of going up is connected by at least one connecting rod that is provided with perpendicular to described upward plane with described lower plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201610606U CN201435593Y (en) | 2009-06-29 | 2009-06-29 | Earth wire support of transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201610606U CN201435593Y (en) | 2009-06-29 | 2009-06-29 | Earth wire support of transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435593Y true CN201435593Y (en) | 2010-03-31 |
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ID=42054406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201610606U Expired - Lifetime CN201435593Y (en) | 2009-06-29 | 2009-06-29 | Earth wire support of transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435593Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887818A (en) * | 2017-05-03 | 2017-06-23 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of double division ground wire arrangements of DC line |
-
2009
- 2009-06-29 CN CN2009201610606U patent/CN201435593Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887818A (en) * | 2017-05-03 | 2017-06-23 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of double division ground wire arrangements of DC line |
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