CN203013423U - Lightning protection insulator - Google Patents
Lightning protection insulator Download PDFInfo
- Publication number
- CN203013423U CN203013423U CN 201220662918 CN201220662918U CN203013423U CN 203013423 U CN203013423 U CN 203013423U CN 201220662918 CN201220662918 CN 201220662918 CN 201220662918 U CN201220662918 U CN 201220662918U CN 203013423 U CN203013423 U CN 203013423U
- Authority
- CN
- China
- Prior art keywords
- insulator
- insulator body
- lightning protection
- tab
- discharge ring
- 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 - Lifetime
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 48
- 208000025274 Lightning injury Diseases 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000001354 calcination Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 244000080575 Oxalis tetraphylla Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a lightning protection insulator. The lightning protection insulator comprise an insulator body, a wiring terminal fixedly connected at an upper end of the insulator body, a screw fixedly connected at a lower end of the insulator body, a discharge ring and an end tab, wherein the discharge ring is sleeved at a connection portion of the wiring terminal and the insulator body, the screw passes through a center of the end tab, the end tab is quite close to the lower end of the insulator body and is fixed through a nut. The lightning protection insulator has properties of simple structure and low cost and can prevent an overhead line circuit from being damaged by lightning stroke.
Description
Technical field
The utility model relates to a kind of anti-thunder insulator.
Background technology
Electric distribution network overhead wire is not generally established overhead ground wire, thereby the probability of the infringement of being struck by lightning is larger.The consequence that the thunderbolt infringement causes is as the insulator generation penetrability flashover of support wire and an insulating effect, makes insulator lose insulating effect, causes the ground short circuit accident of electric power system.Particularly after overhead transmission line adopts insulated conductor, thunderbolt causes the flashover with insulator of puncturing of wire insulation, and the short-channel of formation is fixed on the breakdown point of insulated conductor.If be attended by powerful power frequency short circuit current this moment, long power frequency arc of time will be set up, and the arc root of electric arc can not slide along wire, can only be fixed on the breakdown point of insulated conductor, this moment, power frequency arc just can blow insulated conductor, caused larger accident.
In order to prevent the penetrability flashover of insulator, guarantee that the insulation function of insulator can not lose, limit again the generation of power frequency short circuit current simultaneously, avoid blowing insulated conductor, reduce the lightning strike accident of overhead transmission line, the insulator with lightning protection function is most important.But, the most complex structure of present anti-thunder insulator, with high costs, the scale that is not suitable for is used.
Summary of the invention
The purpose of this utility model be to overcome the defective of prior art and provide a kind of simple in structure, with low cost and can effectively prevent overhead transmission line be struck by lightning the infringement anti-thunder insulator.
The technical scheme that realizes above-mentioned purpose is:
A kind of anti-thunder insulator, the screw rod that comprises insulator body, is fixed in the binding post of this insulator body upper end and is fixed in this insulator body lower end, described anti-thunder insulator also comprises:
Discharge ring, it is socketed in the position that described binding post and insulator body are joined;
Run-on tab, described screw rod is passed at its center, near the lower end of described insulator body and fix by nut.
Above-mentioned anti-thunder insulator, wherein, described insulator body is provided with some layers of umbrella rib.
The beneficial effects of the utility model are: the utility model is simple in structure, and is with low cost, is fit to large-scale production and uses; In the situation that do not lose general insulator function, form short-channel by discharge ring and run-on tab when being struck by lightning, power frequency arc is moved between discharge ring and run-on tab burn, avoid insulated conductor by calcination, prevent that effectively overhead transmission line from suffering the thunderbolt infringement.
Description of drawings
Fig. 1 is the structure chart of anti-thunder insulator of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, anti-thunder insulator of the present utility model comprises binding post 1, columniform insulator body 2, discharge ring 3, run-on tab 4 and screw rod 5, wherein:
Binding post 1 is fixed in the upper end of insulator body 2, is used for colligation overhead wire 200;
Screw rod 5 is fixed in the lower end of insulator body 2, can directly be directly installed on the installing hole of iron cross arm by screw rod 5; Screw rod 5 ground connection;
Discharge ring 3 is socketed in the position that binding post 1 and insulator body 2 are joined; Round-meshed sheet metal centered by discharge ring 3, the diameter of the size of this circular hole and insulator body 2 is complementary;
Run-on tab 4 is for having the metallic plate of centre bore, and this centre bore passes screw rod 5, makes run-on tab 4 near the lower end of insulator body 2, then fixes by nut; Run-on tab 4 shapes are indefinite, and in the present embodiment, run-on tab 4 comprises rectangular bottom surface and by the dual-side of this rectangular bottom surface 45 degree edge surface of extending obliquely;
In the present embodiment, the cylindrical sides of insulator body 2 is provided with some layers of umbrella rib.
The utility model is simple in structure, with low cost, has high practical value, it play when usual state general insulator function (the bracing frame ceases to be busy, make overhead wire over the ground and with other conductor insulations), when being struck by lightning, short circuit dischange between discharge ring 3 and run-on tab 4, power frequency arc is moved to burning between discharge ring 3 and run-on tab 4, avoid overhead wire 200 by calcination, prevent that effectively overhead transmission line from suffering the thunderbolt infringement.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (2)
1. anti-thunder insulator, the screw rod that comprises insulator body, is fixed in the binding post of this insulator body upper end and is fixed in this insulator body lower end is characterized in that, described anti-thunder insulator also comprises:
Discharge ring, it is socketed in the position that described binding post and insulator body are joined;
Run-on tab, described screw rod is passed at its center, near the lower end of described insulator body and fix by nut.
2. anti-thunder insulator according to claim 1, is characterized in that, described insulator body is provided with some layers of umbrella rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662918 CN203013423U (en) | 2012-12-05 | 2012-12-05 | Lightning protection insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662918 CN203013423U (en) | 2012-12-05 | 2012-12-05 | Lightning protection insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203013423U true CN203013423U (en) | 2013-06-19 |
Family
ID=48604990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220662918 Expired - Lifetime CN203013423U (en) | 2012-12-05 | 2012-12-05 | Lightning protection insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203013423U (en) |
-
2012
- 2012-12-05 CN CN 201220662918 patent/CN203013423U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |