CN201256276Y - Overhead transmission line surround thunder-proof lightning arrester - Google Patents
Overhead transmission line surround thunder-proof lightning arrester Download PDFInfo
- Publication number
- CN201256276Y CN201256276Y CNU2008201342684U CN200820134268U CN201256276Y CN 201256276 Y CN201256276 Y CN 201256276Y CN U2008201342684 U CNU2008201342684 U CN U2008201342684U CN 200820134268 U CN200820134268 U CN 200820134268U CN 201256276 Y CN201256276 Y CN 201256276Y
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- China
- Prior art keywords
- gold utensil
- transmission line
- shaft tower
- overhead transmission
- overhead
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- 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 provides an anti surround thunder-struck screening device of an overhead transmission line, which is arranged between a pole tower and a lightning conductor arranged on the pole tower, and comprises a shielded conductor, a pole tower cross-arm connecting hardware and an overhead lightning conductor fixed hardware, wherein four shielded conductors are provided, each two shielded conductors are in one group, one ends of each group of shielded conductors are respectively connected with the lightning conductor through each overhead lightning conductor fixed hardware, and the other ends thereof are connected with the pole tower through the common pole tower cross-arm connecting hardware. The anti surround thunder-struck screening device has simple structure and convenient installation, which leads trapped lightning current to leak into earth through the shielded conductors and the pole tower, leads wires to be effectively protected, achieves the purpose of lowering tripping operation caused by the overhead transmission line which is surrounded and stroked by lightning, and guarantees the safe and stable operation of overhead transmission lines.
Description
Technical field
The utility model relates to power system security protection field, particularly a kind of screening arrangement of overhead transmission line anti-mine.
Background technology
The overhead transmission line point more than long lines, institute is through with a varied topography changeable, and thunderbolt is one of its major accident.Operating experience, field measurement, analogue test show and relevant document is set forth, and the line tripping that around shocking causes accounts for sizable ratio, and the safe and stable operation of electric power system is constituted a serious threat.
At present, general adopt reduce pole tower ground resistance, improve the line insulation level, reduce shielding angle, set up lightning conducter, methods such as installing lightning arrester and side pin lower the damage to crops caused by thunder accident.Although above measure is helpful to reducing tripping rate with lightning strike, effect is also not obvious, and input-output ratio is little.Especially the area strong at lightening activity or soil resistivity is high, economic input is quite big, and lightning protection effect is very little.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned prior art, a kind of screening arrangement of overhead transmission line anti-mine is provided, has advantage of simple structure, and can effectively lower the damage to crops caused by thunder accident, prevent the line tripping that around shocking causes, reach the overhead transmission line safe and stable operation.
The technical scheme taked of the utility model is to achieve these goals: a kind of screening arrangement of overhead transmission line anti-mine, be arranged on shaft tower and on lightning conducter between, comprise that shielding conductor, tower cross-arm connect fixedly gold utensil of gold utensil and overhead ground wire.Wherein, the support when the shaft tower cross-arm connects gold utensil and is used to install shielding conductor, the location of overhead ground wire when fixedly gold utensil is used to install shielding conductor with fix, shielding conductor is used to tackle the lightning current of walking around overhead ground wire, avoid hitting on lead, the shunting lightning current plays shielding action.Shielding conductor is four, in twos an end of shielding conductor respectively the overhead ground wire by separately fixedly gold utensil is connected with lightning conducter, the other end connects gold utensil by common shaft tower cross-arm and be connected with shaft tower.The utility model is by the shielding action of shielding conductor; the lightning current of catching is leaked into the earth by shielding conductor and shaft tower; make lead obtain effective protection, realized the purpose of the tripping operation that attenuating overhead transmission line shielding thunderbolt causes, guaranteed the safe and stable operation of overhead transmission line.
Described shaft tower cross-arm connects gold utensil and comprises shaft tower cross-arm anchor clamps and hanging wire gold utensil, and described overhead ground wire fixedly gold utensil is the screw bolt-type T-shape cable clamp.
Described hanging wire gold utensil is a wedge clamp.
The beneficial effects of the utility model are: compared to existing technology; simple in structure being convenient to of the utility model installed; shielding action by shielding conductor; the lightning current of catching is leaked into the earth by shielding conductor and shaft tower; make lead obtain effective protection; realize the purpose of the tripping operation that attenuating overhead transmission line shielding thunderbolt causes, guaranteed the safe and stable operation of overhead transmission line.
Description of drawings
Fig. 1 is the structure diagram of the screening arrangement of overhead transmission line anti-mine described in the utility model.
Among the figure: 1 shaft tower, 2 leads, 3 lightning conducters, 4 overhead ground wires fixedly gold utensil, 5 shielding conductors, 6 shaft tower cross-arms connect gold utensil, 6.1 shaft tower cross-arm anchor clamps, 6.2 hanging wire gold utensils.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
The screening arrangement of a kind of overhead transmission line anti-mine as shown in Figure 1, be arranged on shaft tower 1 and on lightning conducter 3 between, lightning conducter 3 is two both sides that are arranged on shaft tower 1.Described screening arrangement comprise in the prior art often adopt shielding conductor 5, shaft tower cross-arm connect fixedly gold utensil 4 of gold utensil 6 and overhead ground wire.Shielding conductor 5 is four, per two shielding conductors 5 are one group of respectively corresponding two lightning conducter, an end of 5 of every set of shield line respectively the overhead ground wire by separately fixedly gold utensil 4 is connected with lightning conducter 3, the other end is connected with shaft tower 1 by common shaft tower cross-arm connection gold utensil 6.
Support when wherein, shaft tower cross-arm connection gold utensil 6 is used to install shielding conductor 5.The shaft tower cross-arm connects gold utensil 6 and comprises shaft tower cross-arm anchor clamps 6.1 and hanging wire gold utensil 6.2, and shaft tower cross-arm anchor clamps 6.1 are processed and installed according to the width of shaft tower cross-arm master material; Hanging wire gold utensil 6.2 is the wedge clamp NE-1 of standard power gold utensil.
The location of overhead ground wire when fixedly gold utensil 4 is used to install shielding conductor 5 is with fixing, and overhead ground wire fixedly gold utensil 4 is the screw bolt-type T-shape cable clamp TL-21 of standard power gold utensil, and it is to match and install according to the diameter of overhead ground wire and position.
Shielding conductor 5 is used to tackle the thunder and lightning of walking around overhead ground wire, avoids hitting on lead 2, and the shunting lightning current plays shielding action.Shielding conductor 5 is to determine its material, diameter and length according to the lightening activity situation in electric pressure, shaft tower height, shaft tower position and zone of living in for wire rod commonly used.
The utlity model has the advantage of being convenient to install simple in structure, connect fixedly gold utensil of gold utensil and overhead ground wire by the shaft tower cross-arm, shielding conductor is laid on the line, shielding action by shielding conductor shields and shunts the shielding lightning current, realize the purpose of the overhead transmission line tripping operation that the attenuating around shocking causes, guaranteed the safe and stable operation of overhead transmission line.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.
Claims (3)
1. the screening arrangement of an overhead transmission line anti-mine, be arranged on shaft tower and on lightning conducter between, it is characterized in that: comprise fixedly gold utensil of shielding conductor, shaft tower cross-arm connection gold utensil and overhead ground wire, shielding conductor is four, per two shielding conductors are one group, an end of every set of shield line respectively the overhead ground wire by separately fixedly gold utensil is connected with lightning conducter, the other end connects gold utensil by common shaft tower cross-arm and be connected with shaft tower.
2. the screening arrangement of overhead transmission line anti-mine according to claim 1 is characterized in that: described shaft tower cross-arm connects gold utensil and comprises shaft tower cross-arm anchor clamps and hanging wire gold utensil, and described overhead ground wire fixedly gold utensil is the screw bolt-type T-shape cable clamp.
3. the screening arrangement of overhead transmission line anti-mine according to claim 2 is characterized in that: described hanging wire gold utensil is a wedge clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201342684U CN201256276Y (en) | 2008-09-25 | 2008-09-25 | Overhead transmission line surround thunder-proof lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201342684U CN201256276Y (en) | 2008-09-25 | 2008-09-25 | Overhead transmission line surround thunder-proof lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201256276Y true CN201256276Y (en) | 2009-06-10 |
Family
ID=40739603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201342684U Expired - Fee Related CN201256276Y (en) | 2008-09-25 | 2008-09-25 | Overhead transmission line surround thunder-proof lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201256276Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826892A (en) * | 2016-05-23 | 2016-08-03 | 西安交通大学 | Shielded line system for reducing shielding failure exposure arcs of 750kV common-tower double-circuit lines in mountainous areas |
| CN106374338A (en) * | 2016-11-08 | 2017-02-01 | 王巨丰 | Solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester |
| CN109586235A (en) * | 2019-01-11 | 2019-04-05 | 安徽华电工程咨询设计有限公司 | A kind of weather-proof angle steel tower exogenous ground wire grounding structure for spacious area and area with more lightning activities environment |
| CN109672136A (en) * | 2019-01-11 | 2019-04-23 | 安徽华电工程咨询设计有限公司 | A kind of ladder lead type ground wire grounding structure for weather-proof steel tube tower |
| CN109672137A (en) * | 2019-01-11 | 2019-04-23 | 安徽华电工程咨询设计有限公司 | It is a kind of for drawing formula ground wire grounding structure in the weather-proof steel material angle steel tower of residential area and area with less lightning activities environment |
| CN111814355A (en) * | 2020-07-24 | 2020-10-23 | 南方电网科学研究院有限责任公司 | Method and device for protecting high-voltage transmission line from lightning shielding failure and terminal equipment |
-
2008
- 2008-09-25 CN CNU2008201342684U patent/CN201256276Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826892A (en) * | 2016-05-23 | 2016-08-03 | 西安交通大学 | Shielded line system for reducing shielding failure exposure arcs of 750kV common-tower double-circuit lines in mountainous areas |
| CN105826892B (en) * | 2016-05-23 | 2018-03-02 | 西安交通大学 | For reducing the shielding line system of mountain area 750kV common-tower double-circuit lines shielding exposure arc |
| CN106374338A (en) * | 2016-11-08 | 2017-02-01 | 王巨丰 | Solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester |
| CN106374338B (en) * | 2016-11-08 | 2018-08-10 | 王巨丰 | A kind of solid phase formula line span center lightning stroke flashover arc extinguishing lightning protection device |
| CN109586235A (en) * | 2019-01-11 | 2019-04-05 | 安徽华电工程咨询设计有限公司 | A kind of weather-proof angle steel tower exogenous ground wire grounding structure for spacious area and area with more lightning activities environment |
| CN109672136A (en) * | 2019-01-11 | 2019-04-23 | 安徽华电工程咨询设计有限公司 | A kind of ladder lead type ground wire grounding structure for weather-proof steel tube tower |
| CN109672137A (en) * | 2019-01-11 | 2019-04-23 | 安徽华电工程咨询设计有限公司 | It is a kind of for drawing formula ground wire grounding structure in the weather-proof steel material angle steel tower of residential area and area with less lightning activities environment |
| CN109672137B (en) * | 2019-01-11 | 2024-05-14 | 安徽华电工程咨询设计有限公司 | A fire-resistant steel angle steel tower internal leading type lightning conductor grounding structure for living area and few thunder district environment |
| CN109672136B (en) * | 2019-01-11 | 2024-05-14 | 安徽华电工程咨询设计有限公司 | Ladder lead type lightning conductor grounding structure for weathering steel pipe tower |
| CN109586235B (en) * | 2019-01-11 | 2024-05-14 | 安徽华电工程咨询设计有限公司 | A outer lightning rod ground structure of leading of resistant angle steel tower for open area and many thunder district environment |
| CN111814355A (en) * | 2020-07-24 | 2020-10-23 | 南方电网科学研究院有限责任公司 | Method and device for protecting high-voltage transmission line from lightning shielding failure and terminal equipment |
| CN111814355B (en) * | 2020-07-24 | 2024-04-26 | 南方电网科学研究院有限责任公司 | High-voltage transmission line lightning shielding failure protection method and device and terminal equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20100925 |