CN203895330U - Double insulator ice melting grounding knife switch - Google Patents
Double insulator ice melting grounding knife switch Download PDFInfo
- Publication number
- CN203895330U CN203895330U CN201420162229.0U CN201420162229U CN203895330U CN 203895330 U CN203895330 U CN 203895330U CN 201420162229 U CN201420162229 U CN 201420162229U CN 203895330 U CN203895330 U CN 203895330U
- Authority
- CN
- China
- Prior art keywords
- knife switch
- base plate
- fixed
- clamp
- ice melting
- 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 22
- 230000008018 melting Effects 0.000 title abstract 3
- 238000002844 melting Methods 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a double insulator ice melting grounding knife switch which is characterized by comprising a base plate and a knife switch, wherein each of two ends of the base plate is provided with an insulator, each of the top parts of the two insulators is provided with a device wire clamp, a connecting support seat is fixed on one of the device wire clamps, a clamping plate is fixed on the other device wire clamp, the connecting support seat is hinged onto one end of the knife switch through a pin shaft, the other end of the knife switch is matched with the clamping plate, a C-shaped fixing clamp is fixed on the base plate and is provided with a clamping screw bolt, and the base plate is fixed on an iron tower rack through the C-shaped fixing clamp and the clamping screw bolt. The double insulator ice melting grounding knife switch is characterized by reasonable design, simple structure, good electric conduction performance, superior corrosion resistance, convenience of operation and maintenance and the like.
Description
Technical field
The utility model relates to a kind of Optical Fiber composite overhead Ground Wire (OPGW) reliable ground device, specifically, relates to a kind of double insulator ice-melt grounding switch for reliably insulating after line ice coating.
Background technology
China is one of comparatively serious country of powerline ice-covering.The harm of line ice coating is mainly manifested in the aspects such as the broken string of falling tower, insulator arc-over, conductor galloping, tripping operation, even may cause electrical network paralysis when serious, and national product and people's lives are caused to heavy losses.
But for a long time because technical merit is limited, OPGW optical cable can not insulate completely and between steel tower, therefore be difficult to realize ice-melt.At present still adopt the mode by tower ground connection, after icing, cause overhead ground wire generation slippage, cause line tripping to stop transport, and the serious time broken string of ice and snow, the situation of the faults such as tower of falling, the safe operation of electrical network can not get reliable guarantee.
Summary of the invention
The purpose of this utility model is to provide a kind of double insulator ice-melt grounding switch for above-mentioned weak point, it is the grounding switch for ice-melt, ensureing under the prerequisite of OPGW properties of optical fiber cable, utilize the closure state of grounding switch, realize the single-point grounding mode of circuit, thereby reduce the induced current loss that OPGW produces by tower ground connection; In the time being struck by lightning, by disconnecting link, large electric current is directed to shaft tower, play lightning protection function.Utilizing the open mode of grounding switch, make whole piece circuit in all insulation state, by transmission current or adopt short circuit current, is heat energy by electric energy conversion, reaches ice-melt heat balance and realizes ice-melt.
The utility model takes following technical scheme to realize:
A kind of double insulator ice-melt grounding switch, comprise base plate and disconnecting link, on the two ends of base plate, be respectively provided with an insulator, the top of two insulators is respectively provided with a device clamp, wherein on a device clamp, is fixed with connection bearing, on another device clamp, is fixed with clamping plate, described connection bearing is hinged by one end of pivot pin and disconnecting link, the other end of disconnecting link matches with clamping plate, is fixed with C type geometrical clamp on described base plate, on described C type geometrical clamp, is provided with fishbolt.
Further, described C type geometrical clamp is at least provided with 2.
When the utility model double insulator ice-melt grounding switch uses, it is fixed on iron tower main material by C type geometrical clamp and fishbolt, OPGW optical cable passes through a wherein device clamp and is connected with double insulator ice-melt grounding switch, and another device clamp is connected with iron tower main material by circuit.Conventionally ensureing, under the prerequisite of OPGW properties of optical fiber cable, to utilize the closure state of disconnecting link to realize the single-point grounding mode of circuit, thereby reducing the induced current loss that OPGW produces by tower ground connection.In the time being struck by lightning, by disconnecting link, large electric current is directed to steel tower, play lightning protection function.In the time that electrical network has suffered serious line ice coating disaster, after being OPGW optical cable (Optical Fiber composite overhead Ground Wire) icing, utilize the open mode of disconnecting link, make whole piece circuit in all insulation state, by transmission current or employing short circuit current, be heat energy by electric energy conversion, OPGW optical cable (Optical Fiber composite overhead Ground Wire) bulk temperature is raise, melt the surperficial icing of OPGW optical cable (Optical Fiber composite overhead Ground Wire), reach ice-melt heat balance and realize ice-melt.
The utility model double insulator ice-melt grounding switch is reasonable in design, simple in structure, conducts electricity very well, and decay resistance is superior, operation, easy to maintenance.
Brief description of the drawings
Below with reference to accompanying drawing, the utility model is described in further detail:
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the end view of Fig. 1.
Embodiment
With reference to attached Fig. 1 and 2, double insulator ice-melt grounding switch comprises base plate 5 and disconnecting link 1, on the two ends of base plate 5, be respectively provided with an insulator 4, respectively be provided with a device clamp 3 at the top of two insulators 4, on a device clamp 3, be fixed with therein and connect bearing 7, on another device clamp 3, be fixed with clamping plate 2, connect bearing 7 hinged with one end of disconnecting link 1 by pivot pin 8, the other end of disconnecting link 1 matches with clamping plate 2, on base plate 5, be fixed with two C type geometrical clamps 6, on each C type geometrical clamp 6, be provided with fishbolt 9, base plate 5 is by C type geometrical clamp 6, fishbolt 9 is fixed in steel towers.
Claims (2)
1. a double insulator ice-melt grounding switch, it is characterized in that: comprise base plate and disconnecting link, on the two ends of base plate, be respectively provided with an insulator, the top of two insulators is respectively provided with a device clamp, wherein on a device clamp, is fixed with connection bearing, on another device clamp, is fixed with clamping plate, described connection bearing is hinged by one end of pivot pin and disconnecting link, the other end of disconnecting link matches with clamping plate, is fixed with C type geometrical clamp on described base plate, on described C type geometrical clamp, is provided with fishbolt.
2. double insulator ice-melt grounding switch according to claim 1, is characterized in that: described C type geometrical clamp is at least provided with 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162229.0U CN203895330U (en) | 2014-04-04 | 2014-04-04 | Double insulator ice melting grounding knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420162229.0U CN203895330U (en) | 2014-04-04 | 2014-04-04 | Double insulator ice melting grounding knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895330U true CN203895330U (en) | 2014-10-22 |
Family
ID=51721697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420162229.0U Expired - Lifetime CN203895330U (en) | 2014-04-04 | 2014-04-04 | Double insulator ice melting grounding knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971974A (en) * | 2014-04-04 | 2014-08-06 | 国家电网公司 | Double-insulator ice-melting grounding disconnector |
-
2014
- 2014-04-04 CN CN201420162229.0U patent/CN203895330U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971974A (en) * | 2014-04-04 | 2014-08-06 | 国家电网公司 | Double-insulator ice-melting grounding disconnector |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |