CN201820538U - Lightning-protection insulator - Google Patents
Lightning-protection insulator Download PDFInfo
- Publication number
- CN201820538U CN201820538U CN2010205403580U CN201020540358U CN201820538U CN 201820538 U CN201820538 U CN 201820538U CN 2010205403580 U CN2010205403580 U CN 2010205403580U CN 201020540358 U CN201020540358 U CN 201020540358U CN 201820538 U CN201820538 U CN 201820538U
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- China
- Prior art keywords
- insulator
- arc
- electrode
- upper flange
- cable
- Prior art date
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- Expired - Fee Related
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Abstract
A lightning-protection insulator comprises an insulator, an upper flange, a lower flange, a discharge electrode, an arc leading electrode and an insulated cover, wherein, the insulator is used for supporting an insulated cable, the upper and the lower flanges are respectively sleeved at two ends of the insulator and used for supporting the insulator, the discharge electrode is arranged at the periphery of the upper flange and used for leading out an arc generated by a lightning stroke, the arc leading electrode is fixed at the bottom of the lower flange and used for leading the arc generated by the lightning stroke to the ground, the insulated cover is provided with a center cover, a cable trough passing through the center cover extends towards two sides from the middle of the center cover, an opening is formed longitudinally at the bottom of the cable trough, two clamp plates extend downwards from the opening, the center cover is sleeved on the upper flange, the two clamp plates protect the discharge electrode, the cable trough is used for arranging the insulated cable in a penetrating manner, the arc leading electrode adopts a single-arm plate body structure or a double-arm plate body structure, and the insulator is made of synthetic rubber. The lightning-protection insulator can quickly lead the arc generated by the lightning stroke to the ground through the discharge electrode and the arc leading electrode, thereby preventing the insulated cable from being burnt down by the lightning stroke.
Description
Technical field
The utility model relates to a kind of insulator, particularly a kind of lightning protection insulator that can prevent that insulated cable is blown because of thunderbolt.
Background technology
Often have on the overhead transmission line and stick that foreign material, birds stop, branch is affiliated to, and situation such as accumulated snow takes place.For preventing that because of above-mentioned reason causes line fault, China promotes the use of insulated cable since the nineties in last century at overhead transmission line.But use insulated cable can bring the new problem of lightning-caused breaking again: thunderbolt can at first puncture the insulating barrier of cable, cause insulator arc-over, short circuit current electric arc is subjected to the retardance of insulating on every side, and only in puncture place burning, the result causes at the utmost point fitly blew cable in the short time.
The utility model content
In view of above-mentioned, the purpose of this utility model provides a kind of lightning protection insulator, and it can guide to the earth rapidly with the electric arc that when thunderbolt produces, thereby prevents that insulated cable from being burnt by thunder and lightning.
The purpose of this utility model is achieved through the following technical solutions:
A kind of lightning protection insulator comprises: insulator is used to support insulated cable; Upper flange and lower flange are enclosed within the two ends of described insulator respectively, are used to support described insulator; Sparking electrode is placed in described upper flange periphery, is used to draw the electric arc that thunderbolt produces; Arc electrode is fixed on the bottom of described lower flange, is used for the electric arc that thunderbolt produces is caused the earth; Insulating cover, it has a central cover, the cable trough that connects with central cover is extended at the middle part of central cover to both sides, the bottom longitudinal opening of cable trough and thus opening part extend two clamping plate downwards, its center enclosure is on described upper flange, its two clamping plate protect the residence and state sparking electrode, and its cable trough is used to wear insulated cable.
Described arc electrode is single armed plate body structure or both arms plate body structure.
The material of described insulator is a synthetic rubber.
Described sparking electrode can be fixed on the periphery of upper flange, also can make one with upper flange.
The utility model has the advantages that:
1. owing to be provided with sparking electrode and arc electrode, can when thunderbolt, electric arc be guided to the arc electrode that communicates with the earth through sparking electrode, so can prevent that insulated cable from being smashed by thunder and lightning;
2. simple in structure, cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model first embodiment;
Fig. 2 is the structural representation of the utility model second embodiment.
Embodiment
The utility model is a kind of lightning protection insulator, and as shown in Figure 1, it comprises: insulator 6 is used to support insulated cable; Upper flange 5 and lower flange 8 are enclosed within the two ends of insulator 6 respectively, are used for support insulator 6; Sparking electrode 4 is placed in the periphery of upper flange 5, is used to draw the electric arc that thunderbolt produces; Arc electrode 7 is fixed on the bottom of lower flange 8, is used for the electric arc that thunderbolt produces is caused the earth; Insulating cover, it has a central cover 1, two cable troughs 2 that connect with central cover 1 are extended at the middle part of central cover 1 to both sides, the bottom longitudinal opening of cable trough 2 and thus opening part extend two clamping plate 3 downwards, central cover 1 is enclosed within on the upper flange, two clamping plate 3 protect sparking electrode 4, and cable trough 2 is used to wear insulated cable.
When the utility model product is installed, mucilage binding is distinguished in upper flange 5 and lower flange 8 in the two ends of insulator 6, load onto sparking electrode 4 and arc electrode 7, again insulating cover is enclosed within on the upper flange 5.
When using the utility model product, need insulated cable is partly exposed, take insulating cover earlier, the exposed part of insulated cable and sparking electrode 4 are tightly linked, put insulating cover then and insulated cable is embedded in the cable trough 2.7 of arc electrodes are electrically connected with the earth.
When thunderbolt took place, the thunderbolt short circuiting arc can be transferred on the sparking electrode 4 from the exposed part of insulated cable, again through arc electrode 7 to ground discharge, thereby the protection insulated cable is avoided the thunderbolt damage.
Above-mentioned arc electrode 7 is the both arms plate body structure.Consider that under the situation that two insulators use side by side may produce interference between two insulators, arc electrode 7 can adopt single armed plate body structure shown in Figure 2 for this reason.
The material of above-mentioned insulator is porcelain or synthetic rubber, and it is in light weight, non-friable adopting elastomeric advantage.
Claims (6)
1. lightning protection insulator is characterized in that comprising:
Insulator is used to support insulated cable;
Upper flange and lower flange are enclosed within the two ends of described insulator respectively, are used to support described insulator;
Sparking electrode is placed in described upper flange periphery, is used to draw the electric arc that thunderbolt produces;
Arc electrode is fixed on the bottom of described lower flange, is used for the electric arc that thunderbolt produces is caused the earth;
Insulating cover, it has a central cover, the cable trough that connects with central cover is extended at the middle part of central cover to both sides, the bottom longitudinal opening of cable trough and thus opening part extend two clamping plate downwards, its center enclosure is on described upper flange, its two clamping plate protect the residence and state sparking electrode, and its cable trough is used to wear insulated cable.
2. lightning protection insulator according to claim 1 is characterized in that:
Described arc electrode is the single armed plate body structure.
3. lightning protection insulator according to claim 1 is characterized in that:
Described arc electrode is the both arms plate body structure.
4. lightning protection insulator according to claim 1 is characterized in that:
The material of described insulator is a synthetic rubber.
5. lightning protection insulator according to claim 1 is characterized in that:
Described sparking electrode is fixed on the periphery of described upper flange.
6. lightning protection insulator according to claim 1 is characterized in that:
Described sparking electrode and described upper flange are made one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205403580U CN201820538U (en) | 2010-09-21 | 2010-09-21 | Lightning-protection insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205403580U CN201820538U (en) | 2010-09-21 | 2010-09-21 | Lightning-protection insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820538U true CN201820538U (en) | 2011-05-04 |
Family
ID=43918485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205403580U Expired - Fee Related CN201820538U (en) | 2010-09-21 | 2010-09-21 | Lightning-protection insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201820538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2808133A1 (en) * | 2019-08-23 | 2021-02-25 | Corporative Int R&H Europe S L | Electrical protection device. (Machine-translation by Google Translate, not legally binding) |
-
2010
- 2010-09-21 CN CN2010205403580U patent/CN201820538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2808133A1 (en) * | 2019-08-23 | 2021-02-25 | Corporative Int R&H Europe S L | Electrical protection device. (Machine-translation by Google Translate, not legally binding) |
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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: 20110504 Termination date: 20150921 |
|
| EXPY | Termination of patent right or utility model |