CN203895336U - Single insulator ice melting and grounding knife switch - Google Patents
Single insulator ice melting and grounding knife switch Download PDFInfo
- Publication number
- CN203895336U CN203895336U CN201420161970.5U CN201420161970U CN203895336U CN 203895336 U CN203895336 U CN 203895336U CN 201420161970 U CN201420161970 U CN 201420161970U CN 203895336 U CN203895336 U CN 203895336U
- Authority
- CN
- China
- Prior art keywords
- insulator
- base plate
- knife switch
- upper clamping
- ice
- 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 31
- 230000008018 melting Effects 0.000 title abstract 3
- 238000002844 melting Methods 0.000 title abstract 3
- 238000009413 insulation Methods 0.000 claims description 7
- -1 disconnecting link Substances 0.000 claims description 2
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a single insulator ice melting and grounding knife switch which is characterized by comprising an upper clamping plate, an upper clamping tool, an equipment wire clamp, an insulator, a knife switch, a base plate, a connecting support seat, a C-shaped fixing clamp and a clamping screw bolt, wherein an insulator is mounted on one end of the base plate, the connecting support seat is mounted on the other end of the base plate, the upper clamping plate is mounted on the upper part of the insulator, the equipment wire clamp is mounted on the upper clamping plate, the upper clamping tool is mounted on the upper part of the upper clamping plate, one end of the knife switch is movably hinged onto the connecting support seat through a pivot pin, the other end of the knife switch is connected with the upper clamping tool in a matched manner, the C-shaped fixing clamp is fixedly mounted on the base plate, and a clamping screw bolt is mounted on the C-shaped fixing clamp. The single insulator ice melting and grounding knife switch is characterized by novel 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, is a kind of for reliably insulation after line ice coating, direct current list insulator ice-melt grounding switch.
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 single 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 single insulator ice-melt grounding switch, comprises train wheel bridge, upper fixture, device clamp, insulator, disconnecting link, base plate, connection bearing, C type geometrical clamp and fishbolt;
On one end of base plate, insulator is installed, connection bearing is installed on the other end of base plate, top at insulator is provided with train wheel bridge, device clamp is housed on train wheel bridge, on the top of train wheel bridge, fixture is housed, disconnecting link one end is movably hinged with being connected bearing by pivot pin, and the disconnecting link other end and upper fixture are connected, C type geometrical clamp is fixedly mounted on base plate, on C type geometrical clamp, fishbolt is installed.
Further, described C type geometrical clamp is at least provided with 2.
Further, in described insulator, insulation mandrel is housed.
When the utility model list insulator ice-melt grounding switch uses, it is fixed on iron tower main material by C type geometrical clamp, fishbolt, and OPGW optical cable is connected with single insulator ice-melt grounding switch by device clamp.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 list insulator ice-melt grounding switch modern design, simple in structure, conduct electricity very well, 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 the utility model overall structure schematic diagram.
Fig. 2 is insulator schematic diagram of the present utility model.
Fig. 3 is schematic perspective view of the present utility model.
Embodiment
With reference to accompanying drawing 1,2,3, single insulator ice-melt grounding switch has train wheel bridge 2, upper fixture 1, device clamp 3, insulator 7, disconnecting link 4, base plate 5, connect bearing 8, two C type geometrical clamps 9, fishbolt 10.
Insulator 7 is installed on one end of base plate 5, on the other end of base plate 5, be provided with and connect bearing 8, on the top of insulator 7, train wheel bridge 2 is installed, device clamp 3 is housed on train wheel bridge 2, on the top of train wheel bridge 2, fixture 1 is housed, one end of disconnecting link 4 is movably hinged with being connected bearing 8 by pivot pin 6, and the other end of disconnecting link 4 is connected with upper fixture 1, two C type geometrical clamps 9 are all fixedly mounted on base plate 5, on two C type geometrical clamps 9, fishbolt 10 are all installed.Base plate 5 is fixed in steel towers by C type geometrical clamp 9 and fishbolt 10.For reinforced insulation performance, insulation mandrel 11 is housed in insulator 7.
Claims (3)
1. a single insulator ice-melt grounding switch, is characterized in that: comprise train wheel bridge, upper fixture, device clamp, insulator, disconnecting link, base plate, connection bearing, C type geometrical clamp and fishbolt;
On one end of base plate, insulator is installed, connection bearing is installed on the other end of base plate, top at insulator is provided with train wheel bridge, device clamp is housed on train wheel bridge, on the top of train wheel bridge, fixture is housed, disconnecting link one end is movably hinged with being connected bearing by pivot pin, and the disconnecting link other end and upper fixture are connected, C type geometrical clamp is fixedly mounted on base plate, on C type geometrical clamp, fishbolt is installed.
2. single insulator ice-melt grounding switch according to claim 1, is characterized in that: described C type geometrical clamp is at least provided with 2.
3. single insulator ice-melt grounding switch according to claim 1, is characterized in that: in described insulator, insulation mandrel is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161970.5U CN203895336U (en) | 2014-04-04 | 2014-04-04 | Single insulator ice melting and grounding knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161970.5U CN203895336U (en) | 2014-04-04 | 2014-04-04 | Single insulator ice melting and grounding knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895336U true CN203895336U (en) | 2014-10-22 |
Family
ID=51721702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420161970.5U Expired - Lifetime CN203895336U (en) | 2014-04-04 | 2014-04-04 | Single insulator ice melting and grounding knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985588A (en) * | 2014-04-04 | 2014-08-13 | 中南电力设计院电网工程公司 | Single-insulator ice-melting earthing knife switch |
-
2014
- 2014-04-04 CN CN201420161970.5U patent/CN203895336U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985588A (en) * | 2014-04-04 | 2014-08-13 | 中南电力设计院电网工程公司 | Single-insulator ice-melting earthing knife switch |
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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: 20141022 |
|
| CX01 | Expiry of patent term |