CN204597436U - Steel tower - Google Patents
Steel tower Download PDFInfo
- Publication number
- CN204597436U CN204597436U CN201520144520.XU CN201520144520U CN204597436U CN 204597436 U CN204597436 U CN 204597436U CN 201520144520 U CN201520144520 U CN 201520144520U CN 204597436 U CN204597436 U CN 204597436U
- Authority
- CN
- China
- Prior art keywords
- traverse line
- main traverse
- support arm
- open
- body frame
- 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
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Abstract
The utility model proposes a kind of steel tower, comprise body frame, that is located on body frame is some to support arm and an earthing device, this earthing device comprises the main traverse line being extended downward ground by the top of body frame, be connected to the open traverse between main traverse line and support arm and be connected to the bottom of main traverse line and the earth rod be located in ground and the electric capacity be connected in parallel near bottom position with main traverse line, one end of main traverse line is connected with overhead ground wire, the other end is connected with earth rod, open traverse is the logarithm identical with support arm logarithm, the symmetrical both sides being located at main traverse line of two open traverses in often pair of open traverse, one end of each open traverse is connected to the junction of support arm and body frame, the other end is connected with main traverse line by a splicing ear.Steel tower in the utility model is at experience thunderstorm hour, and portion of electrical current is directed into underground by earthing device, thus suppresses the significantly rising of steel tower current potential, prevents the potential difference between the electric wire of leg extremities and support arm from increasing.
Description
Technical field
The utility model relates to a kind of steel tower.
Background technology
Along with the construction of China's extra-high voltage grid and the universal of transmission line multiple-loop line technology, steel tower is more obvious to the trend of large load and large scale development.Existing steel tower generally includes body frame and is located at the support arm on this body frame, supports securing electric lines by the insulator that support arm is arranged, and steel tower apical support has overhead ground wire.Existing steel tower or overhead ground wire, when being struck by lightning, can making the current potential of the end of steel tower support arm rise, thus the potential difference between the electric wire of leg extremities and support arm is increased.Industry adopts the interior steel reinforcement cage on basis to be connected with steel tower footing bolt end usually, and owing to having concrete layer between reinforcing bar and footing bolt, contact resistance is very large, and electric current does not discharge.
Utility model content
The utility model proposes a kind of steel tower, can effectively prevent the problems such as its contact resistance is large.
The technical solution of the utility model is achieved in that
A kind of steel tower, comprise body frame, that is located on this body frame is some to support arm, be located at the insulator of each leg extremities, be located at overhead ground wire and an earthing device on body frame top, this earthing device comprises the main traverse line being extended downward ground by the top of body frame, be connected to the open traverse between main traverse line and support arm and be connected to the bottom of main traverse line and the earth rod be located in ground and the electric capacity be connected in parallel near bottom position with main traverse line, one end of described main traverse line is connected with overhead ground wire, the other end is connected with earth rod, described open traverse is the logarithm identical with support arm logarithm, the symmetrical both sides being located at main traverse line of two open traverses in often pair of open traverse, one end of each open traverse is connected to the junction of support arm and body frame, the other end is connected with main traverse line by a splicing ear, often pair of open traverse shares a splicing ear and is connected with main traverse line.
Preferred version is, described main traverse line to be extended downwards along its center by the top of body frame and perpendicular with ground.
Preferred version is, described main traverse line is the hollow wire of braiding.
Preferred version is, described main traverse line is the body that inside is provided with core body, and described core body is steel core or iron core, and described body is copper, aluminium, zinc or their alloy.
Preferred version is, described open traverse is the hollow wire of braiding.
Preferred version is, described open traverse is the body that inside is provided with core body, and described core body is steel core or iron core, and described body is copper, aluminium, zinc or their alloy.
The beneficial effects of the utility model are:
Steel tower in the utility model is at experience thunderstorm hour, when its electric current is invaded by tower top or overhead ground wire, portion of electrical current is directed into underground by earthing device, portion of electrical current on support arm is also confluxed to main traverse line by open traverse and flow to underground again, thus suppress the significantly rising of steel tower current potential, prevent the potential difference between the electric wire of leg extremities and support arm from increasing, avoid the generation of various unfavorable factor.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of steel tower of the present utility model;
Fig. 2 is the structural representation of another embodiment of main traverse line in Fig. 1;
Fig. 3 is the structural representation of the another embodiment of main traverse line in Fig. 1;
Fig. 4 is the structural representation of main traverse line and a pair open traverse part in Fig. 1.
In figure:
100, steel tower; 10, body frame; 20, support arm; 30, insulator; 40, overhead ground wire; 50, earthing device; 51, main traverse line; 52, open traverse; 53, earth rod; 510, core body; 511, body; 55, splicing ear; 56, electric capacity.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, this steel tower 100 comprise body frame 10, the multipair support arm 20 be located on this body frame 10, the insulator 30 being located at each support arm 20 end, the overhead ground wire 40 being located at body frame 10 top and an earthing device 50.
Described body frame 10, support arm 20, insulator 30 and overhead ground wire 40 all can be any structure of the prior art.In the present embodiment, described support arm 20 is three right, is arranged by downward interval, the top of body frame 10.Two support arms 20 in often pair of support arm 20 lay respectively at the left and right sides of body frame 10, and are connected with body frame 10.
Described earthing device 50 comprise by the top of body frame 10 extend downward ground main traverse line 51, be connected to open traverse 52 between main traverse line 51 and support arm 20, be connected to main traverse line 51 bottom and the earth rod 53 be located in ground and the electric capacity 56 be connected in parallel near bottom position with main traverse line 51.
One end of described main traverse line 51 is connected with overhead ground wire 40, and the other end is connected with earth rod 53.This main traverse line 51 to be extended downwards along its center by the top of body frame 10 and perpendicular with ground.Described main traverse line 51 and open traverse 52 can be the hollow wire of the braiding shown in Fig. 2; Also can be the body 511 being provided with core body 510 as shown in Figure 3, this core body 510 is steel core or iron core etc., and this body 511 is copper, aluminium, zinc or their alloy.
Please refer to Fig. 4, described open traverse 52 is the logarithm identical with support arm 20 logarithm, and corresponding with support arm 20 respectively.The symmetrical both sides being located at main traverse line 51 of two open traverses 52 in often pair of open traverse 52, one end of each open traverse 52 is connected to the junction of support arm 20 and body frame 10, and the other end is connected with main traverse line 51 by a splicing ear 55.Often pair of open traverse 52 shares a splicing ear 55 and is connected with main traverse line 51.
This steel tower 100 is at experience thunderstorm hour, when its electric current is invaded by tower top or overhead ground wire 40, portion of electrical current is directed into underground by earthing device 50, portion of electrical current on support arm 20 is also confluxed to main traverse line 51 by open traverse 52 and flow to underground again, thus suppress the significantly rising of steel tower 100 current potential, prevent the potential difference between the electric wire of support arm 20 end and support arm 20 from increasing, and then avoid the generation of various unfavorable factor, because the main traverse line 51 of earthing device 50 is in being also connected in parallel electric capacity 56 near its bottom, thus the electric current shunted in main traverse line 51, and then reduce the current potential on steel tower 100 top further.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. a steel tower, comprise body frame, that is located on this body frame is some to support arm, be located at the insulator of each leg extremities and be located at the overhead ground wire on body frame top, it is characterized in that: also comprise an earthing device, this earthing device comprises the main traverse line being extended downward ground by the top of body frame, be connected to the open traverse between main traverse line and support arm, be connected to the bottom of main traverse line and the earth rod be located in ground and the electric capacity be connected in parallel near bottom position with main traverse line, one end of described main traverse line is connected with overhead ground wire, the other end is connected with earth rod, described open traverse is the logarithm identical with support arm logarithm, the symmetrical both sides being located at main traverse line of two open traverses in often pair of open traverse, one end of each open traverse is connected to the junction of support arm and body frame, the other end is connected with main traverse line by a splicing ear, often pair of open traverse shares a splicing ear and is connected with main traverse line.
2. steel tower as claimed in claim 1, is characterized in that: described main traverse line to be extended downwards along its center by the top of body frame and perpendicular with ground.
3. steel tower as claimed in claim 1, is characterized in that: described main traverse line is the hollow wire of braiding.
4. steel tower as claimed in claim 1, it is characterized in that: described main traverse line is the body that inside is provided with core body, described core body is steel core or iron core, and described body is copper, aluminium, zinc or their alloy.
5. steel tower as claimed in claim 1, is characterized in that: described open traverse is the hollow wire of braiding.
6. steel tower as claimed in claim 1, it is characterized in that: described open traverse is the body that inside is provided with core body, described core body is steel core or iron core, and described body is copper, aluminium, zinc or their alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144520.XU CN204597436U (en) | 2015-03-13 | 2015-03-13 | Steel tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520144520.XU CN204597436U (en) | 2015-03-13 | 2015-03-13 | Steel tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597436U true CN204597436U (en) | 2015-08-26 |
Family
ID=53933550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520144520.XU Expired - Fee Related CN204597436U (en) | 2015-03-13 | 2015-03-13 | Steel tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204597436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577730A (en) * | 2018-09-30 | 2019-04-05 | 国网浙江平阳县供电有限责任公司 | A kind of ground structure for protecting ground wire |
-
2015
- 2015-03-13 CN CN201520144520.XU patent/CN204597436U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577730A (en) * | 2018-09-30 | 2019-04-05 | 国网浙江平阳县供电有限责任公司 | A kind of ground structure for protecting ground wire |
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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 |
Granted publication date: 20150826 Termination date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |