CN201466619U - Gap lightning protection device - Google Patents
Gap lightning protection device Download PDFInfo
- Publication number
- CN201466619U CN201466619U CN2009200911540U CN200920091154U CN201466619U CN 201466619 U CN201466619 U CN 201466619U CN 2009200911540 U CN2009200911540 U CN 2009200911540U CN 200920091154 U CN200920091154 U CN 200920091154U CN 201466619 U CN201466619 U CN 201466619U
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- China
- Prior art keywords
- wire
- striking
- arc
- guide wire
- insulator
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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 discloses a gap lightning protection device, and belongs to the technical field of lightning protection of a transmission line of a power system. The gap lightning protection device comprises an arc-resisting insulator, wherein a high voltage terminal of the arc-resisting insulator is connected with an overhead insulated wire; an earth terminal of the arc-resisting insulator is connected with an insulator; the insulator is provided with a starting arc metal bar and an earth metal bar with a starting arc space A respectively; the earth metal bar is connected with the earth terminal of the arc-resisting insulator; the starting arc metal bar is connected with one end of a starting arc insulated soft wire; and the other end of the starting arc insulated soft wire is in surface contact connection with a conductor core of the overhead insulated wire. The gap lightning protection device leads a momentary heavy current of lightning strike into the earth so as to prevent the lightning from striking off the overhead insulating wire. One end of the starting arc insulated soft wire is in the surface contact connection with the conductor, so compared with the line contact in the prior art, the surface contact is more reliable, not easy to damage when the lightning strikes, and is used more safely.
Description
Technical field
The utility model belongs to the shocking preventing technology field of power system transmission line, is specifically related to a kind of lightning protection device.
Background technology
The distribution overhead transmission line of electric power system mostly adopts the insulated aerial insulated conductor.The lightning protection of overhead transmission line is the problem that work about electric power person makes great efforts to inquire into always.In recent years, the fault that is caused by thunder and lightning in the electrical network still accounts for significant proportion, comprises that the power frequency continued flow behind the lightning stroke flashover damages insulator and gold utensil thereof, causes line accident, and lightning fault remains one of key factor that influences power grid security.The lightning protection measures of overhead transmission line is lightning withstand level, the minimizing tripping rate with lightning strike that improves circuit in one's early years; as set up lightning conducter, reinforced insulation etc.; but along with the fast development of China's electrical network in recent years; above-mentioned lightning protection mode only is to improve lightning withstand level; the big electric current of thunderbolt still exists; it is conservative to have seemed, and the cost price height.In recent years; new lightning protection measure and device have appearred; as notification number is " CN201146358Y "; name is called described in the utility model of " clearance lightning-proof protective device "; earth terminal at arc resistance insulation connects an insulator; have striking metal bar and ground connection striking metal bar on the insulator; ground connection striking metal bar is connected with the earth terminal of arc resistance insulation; the striking insulating soft wire that is installed on the penetrating cable clamp is connected on the striking metal bar; when therefore being struck by lightning; can with the thunderbolt arc energy in the extremely short time from suspended insulated guide wire through the puncture wire clamp; the striking insulating soft wire is transferred on the striking metal bar; puncture striking spacing starting arc; by the ground connection termination the earth of arc resistance insulation, thereby protection suspended insulated guide wire and arc resistance insulation preserve from.But the penetrating cable clamp of described lightning protection device is that the line contact is connected with suspended insulated guide wire, and its contact area is little, and the thunderbolt time is very short, and immediate current is very big, causes penetrating cable clamp and suspended insulated guide wire contact point to damage easily, influences the lightning protection effect of device.
The utility model content
To be solved in the utility model is existing overhead transmission line lightning protection device cost height, flimsy problem, and the clearance lightning-proof protective device that a kind of cost is low, the life-span is long is provided.
The utility model is realized with following method:
A kind of clearance lightning-proof protective device; comprise arc resistance insulation; the high-pressure side of arc resistance insulation is connected with suspended insulated guide wire; the earth terminal of arc resistance insulation is connected with insulator; striking metal bar and grounded metal rod with striking spacing A are housed respectively on the insulator; the grounded metal rod is connected with the earth terminal of arc resistance insulation, and the striking metal bar connects an end of striking insulating soft wire, and the other end of striking insulating soft wire is that the face contact is connected with the conductor cores of suspended insulated guide wire.
It is watt shape wire clamp that the end setting at the striking insulating soft wire matches with suspended insulated guide wire that described contact connects, and watt shape wire clamp and the conductor cores of suspended insulated guide wire are that face contacts and is connected.
It is the pipe box that the conductor cores that coats suspended insulated guide wire is set at striking insulating soft wire one end that described contact connects, and pipe box is that the face contact is connected with the conductor cores of suspended insulated guide wire.
The utility model is introduced the earth to the heavy current of thunderbolt moment, prevent that thunder and lightning from striking off suspended insulated guide wire, and cost is low.One end of striking insulating soft wire is that the face contact is connected with the conductor cores of suspended insulated guide wire, contacts with line of the prior art and compares, and the face contact connects more reliable, is not easy to damage in the time of thunderbolt, uses safer.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 be among Fig. 1 A-A to local enlarged diagram;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 be among Fig. 2 B-B to local enlarged diagram.
Embodiment
Embodiment 1
As shown in Figure 1, the utility model comprises arc resistance insulation 3, the high-pressure side of arc resistance insulation 3 is connected with suspended insulated guide wire 1, the earth terminal of arc resistance insulation 3 is connected with insulator 7, striking metal bar 4 and grounded metal rod 5 with striking spacing A are housed respectively on the insulator 7, grounded metal rod 5 is connected with the earth terminal of arc resistance insulation 3, an end of striking metal bar 4 connection striking insulated conductors 6, the other end of striking insulated conductor 6 and suspended insulated guide wire 1 be that face contacts and is connected.It is watt shape wire clamp 2 that the end setting at striking insulated conductor 6 matches with suspended insulated guide wire 1 that described contact connects.
As shown in Figure 2, watt shape wire clamp 2 is made up of insulating barrier 11 and conductor layer 12, and suspended insulated guide wire 1 is made up of conductor cores 9 and insulating barrier 10.Contact with watt shape wire clamp 2 conductor cores 1 of position of suspended insulated guide wire 1 is exposed, and the conductor layer 12 outstanding with watt shape wire clamp 2 contacts.
The utility model course of work is as follows: when suspended insulated guide wire 1 is struck by lightning; Lightning Over-voltage process suspended insulated guide wire 1, watt shape wire clamp 2 and striking insulating soft wire 2 are to striking metal bar 4; Lightning Over-voltage on the suspended insulated guide wire 1 punctures striking spacing A starting arc; the afterflow power frequency arc is transferred on the striking metal bar 4 to be burnt; and the earth terminal that passes through arc resistance insulation 3 is introduced the earth; the electric arc that will be struck by lightning shifts from suspended insulated guide wire 1, thereby the protection suspended insulated guide wire is injury-free.
Embodiment 2
As shown in Figure 3 and Figure 4, it is the pipe box 8 that the conductor cores 9 that coats suspended insulated guide wire 1 is set at striking insulating soft wire 6 one ends that described contact connects, and pipe box 8 is that the face contact is connected with the conductor cores 9 of suspended insulated guide wire 1.Pipe box 8 is made up of conductor layer 12 and insulating barrier 11.In suspended insulated guide wire 1 position that contacts with pipe box 8, conductor cores 9 is exposed, contacts with the conductor layer 12 of pipe box 8 inner surfaces.Other is with embodiment 1.
Claims (3)
1. clearance lightning-proof protective device; comprise arc resistance insulation (3); the high-pressure side of arc resistance insulation (3) is connected with suspended insulated guide wire (1); the earth terminal of arc resistance insulation (3) is connected with insulator (7); striking metal bar (4) and grounded metal rod (5) with striking spacing A are housed respectively on the insulator (7); grounded metal rod (5) is connected with the earth terminal of arc resistance insulation (3); striking metal bar (4) connects an end of striking insulating soft wire (6), it is characterized in that: the other end of striking insulating soft wire (6) is that the face contact is connected with the conductor cores (9) of suspended insulated guide wire (1).
2. clearance lightning-proof protective device according to claim 1; it is characterized in that: it is watt shape wire clamp (2) that the end setting at striking insulating soft wire (6) matches with suspended insulated guide wire (1) that described contact connects, and watt shape wire clamp (2) and the conductor cores (9) of suspended insulated guide wire (1) are that face contacts and is connected.
3. clearance lightning-proof protective device according to claim 1; it is characterized in that: it is the pipe box (8) that the conductor cores (9) that coats suspended insulated guide wire (1) is set at striking insulating soft wire (6) one ends that described contact connects, and pipe box (8) is that the face contact is connected with the conductor cores (9) of suspended insulated guide wire (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200911540U CN201466619U (en) | 2009-06-26 | 2009-06-26 | Gap lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200911540U CN201466619U (en) | 2009-06-26 | 2009-06-26 | Gap lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466619U true CN201466619U (en) | 2010-05-12 |
Family
ID=42393966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200911540U Expired - Fee Related CN201466619U (en) | 2009-06-26 | 2009-06-26 | Gap lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466619U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136701A (en) * | 2011-01-20 | 2011-07-27 | 宁波市鄞州供电局 | Insulated right-angled baffle plate with holes on both left and right |
| CN102738761A (en) * | 2012-06-14 | 2012-10-17 | 河南省电力公司信阳供电公司 | Clearance lightning protection device |
-
2009
- 2009-06-26 CN CN2009200911540U patent/CN201466619U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136701A (en) * | 2011-01-20 | 2011-07-27 | 宁波市鄞州供电局 | Insulated right-angled baffle plate with holes on both left and right |
| CN102136701B (en) * | 2011-01-20 | 2013-01-30 | 宁波市鄞州供电局 | Insulated right-angled baffle plate with holes on both left and right |
| CN102738761A (en) * | 2012-06-14 | 2012-10-17 | 河南省电力公司信阳供电公司 | Clearance lightning protection device |
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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: 20120626 |