CN201466620U - Lightning protection device for overhead insulated wire - Google Patents
Lightning protection device for overhead insulated wire Download PDFInfo
- Publication number
- CN201466620U CN201466620U CN2009200911790U CN200920091179U CN201466620U CN 201466620 U CN201466620 U CN 201466620U CN 2009200911790 U CN2009200911790 U CN 2009200911790U CN 200920091179 U CN200920091179 U CN 200920091179U CN 201466620 U CN201466620 U CN 201466620U
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- CN
- China
- Prior art keywords
- lightning
- current
- insulated wire
- limiting element
- insulated
- 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 provides a lightning protection device for an overhead insulated wire, which comprises an insulated wire. An insulator on the insulated wire is taken as a bracket, a connection plate is fixedly arranged at the lower end of the insulator via a bolt, a nonlinear current-limiting element is fixedly arranged at the other end of the connection plate via a bolt, a conduction bracket is arranged at the upper end of the nonlinear current-limiting element below the insulated wire, a lightning rod is arranged on the conduction bracket, and a conduction block is arranged on the insulated wire corresponding to the conduction bracket, that is, an insulating layer on the insulated conductor where the conduction block is arranged is striped off to be clung to the conductive conduction block. Due to the structure, the utility model has the advantages as follows: when the overhead insulated conductor confronts the impact of lightning current, the high voltage of the lightning current primarily punctures the series clearance between a lead wire and the conduction bracket, the lightning current is guided to the current-limiting element via the lightning rod, and the current-limiting element limits the residual voltage of the lightning to the overvoltage and cuts off the power frequency afterflow generated by the lightning current so as to prevent the overhead insulated wire from being broken off by the lightning stroke, thereby radically avoiding the generation of wire break accidents due to lightning strokes.
Description
Technical field
The utility model relates to a kind of lightning protection device, relates in particular to a kind of insulated overhead line overvoltage lightning protection device.
Background technology
A large amount of suspended insulated guide wire circuits that adopt have solved tree line contradiction and circuit corridor contradiction effectively in the 10KV distribution network.But the statistical magnitude of insulated circuit generation lightning-caused breaking and insulator breakdown accident is in rising trend in recent years, and sharply rises along with the increase of insulated conductor line length, has become the main root of serious threat line security operation.Present existing insulated overhead line overvoltage protection; zinc oxide arrester is arranged; overhead ground wire etc., but there are the following problems respectively: and the zinc oxide arrester protection range is little, increases protection range as need; must on every electric pole, install; increased cost of investment on the one hand, also needed to install additional on original circuit affiliated facilities such as cross-arm, difficulty of construction is big; this mode has superiority for the protection of power consumption equipment class, but should not adopt on distribution line.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned deficiency a kind of aerial insulated wire lightning protection device is provided.
The technical solution of the utility model is as follows:
A kind of aerial insulated wire lightning protection device, comprise insulated circuit, with the insulator on the insulated circuit is support, lower end at insulator is provided with connecting plate by bolt, the other end at connecting plate is provided with non-linear current limiting element by bolt, non-linear current limiting element upper end below insulated circuit is provided with drainage stent, drainage stent is provided with lightning rod, the drainage piece is set on the insulated circuit of drainage stent correspondence, promptly at the insulated conductor place that the drainage piece is set with the insulating barrier strip off, conductive drainage piece on the card.
Above-mentioned aerial insulated wire lightning protection device also is provided with drainage needle on the drainage piece.
The utility model adopts said structure, the utility model has following advantage: when suspended insulated guide wire meets the lightning current impact, the high voltage of lightning current at first punctures the series gap between lead and the drainage stent, guide lightning current into current limiting element by lightning rod, by it thunder and lightning residual voltage is limited on the overvoltage, and cut off the power frequency continued flow that lightning current causes, prevent that aerial insulated wire from suffering lightning-caused breaking, fundamentally solve the generation of lightning-caused breaking accident, the drainage needle that is provided with on the drainage piece simultaneously can be accelerated lightning current and flow to current limiting element.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As scheme a kind of aerial insulated wire lightning protection device shown in the drawings, and comprise insulated circuit, be support with the insulator on the insulated circuit 4, by bolt connecting plate is set in the lower end of insulator 4
8, at connecting plate
8The other end by bolt non-linear current limiting element 7 is set, non-linear current limiting element upper end below insulated circuit is provided with drainage stent 6, drainage stent is provided with lightning rod 5, drainage piece 2 is set on the insulated circuit of drainage stent correspondence, conductive drainage piece on the insulation displacement card of the insulated conductor place that the drainage piece is set with insulated conductor also is provided with drainage needle 3. again on the drainage piece exactly
Claims (2)
1. an aerial insulated wire lightning protection device comprises insulated circuit, is support with the insulator on the insulated circuit (4), in the lower end of insulator (4) by bolt be provided with connecting plate (
8), connecting plate (
8) the other end by bolt non-linear current limiting element (7) is set, it is characterized in that: the non-linear current limiting element upper end below insulated circuit is provided with drainage stent (6), drainage stent is provided with lightning rod (5), and drainage piece (2) is set on the insulated circuit of drainage stent correspondence.
2. aerial insulated wire lightning protection device according to claim 1 is characterized in that: also be provided with drainage needle (3) on the drainage piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200911790U CN201466620U (en) | 2009-06-29 | 2009-06-29 | Lightning protection device for overhead insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200911790U CN201466620U (en) | 2009-06-29 | 2009-06-29 | Lightning protection device for overhead insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466620U true CN201466620U (en) | 2010-05-12 |
Family
ID=42393967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200911790U Expired - Fee Related CN201466620U (en) | 2009-06-29 | 2009-06-29 | Lightning protection device for overhead insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664376A (en) * | 2012-04-10 | 2012-09-12 | 辽宁省电力有限公司抚顺供电公司 | Lightning protection method of lightning arresters on 10-KV distribution line |
-
2009
- 2009-06-29 CN CN2009200911790U patent/CN201466620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664376A (en) * | 2012-04-10 | 2012-09-12 | 辽宁省电力有限公司抚顺供电公司 | Lightning protection method of lightning arresters on 10-KV distribution line |
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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: 20100512 Termination date: 20110629 |