CN206490408U - A kind of ground wire connects Double safety device - Google Patents
A kind of ground wire connects Double safety device Download PDFInfo
- Publication number
- CN206490408U CN206490408U CN201720070345.3U CN201720070345U CN206490408U CN 206490408 U CN206490408 U CN 206490408U CN 201720070345 U CN201720070345 U CN 201720070345U CN 206490408 U CN206490408 U CN 206490408U
- Authority
- CN
- China
- Prior art keywords
- ground wire
- wire
- strain
- clamp
- ground
- 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 - Fee Related
Links
- 239000000725 suspension Substances 0.000 claims abstract description 18
- 239000012211 strain insulator Substances 0.000 claims abstract description 15
- 238000002788 crimping Methods 0.000 claims abstract description 7
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 8
- 239000010931 gold Substances 0.000 abstract description 8
- 229910052737 gold Inorganic materials 0.000 abstract description 8
- 238000002679 ablation Methods 0.000 abstract description 3
- 230000002045 lasting effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 241000272165 Charadriidae Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
Abstract
The utility model provides a kind of ground wire and connects Double safety device, it is characterised by that the ground wire between overhead ground wire suspension clamp or strain clamp and damper installs two strain insulator shunt bars arranged side by side, the first paragraph of strain insulator shunt bar is that the preformed wire harness of sheet is kinked on ground wire, it is identical that preformed wire harness kinks direction with ground wire top layer strands, second segment is cylindric wire harness, stretched out in suspension clamp or strain clamp side with ground wire bifurcated, end crimping binding post is simultaneously bolt-connected on shaft tower.The utility model had both avoided lightning current and earth short circuit current fusing lightning conducter, also avoids gold utensil from being broken because of loose contact by lasting fine discharge ablation, even if connection gold utensil string or ground thread breakage ground wire can also be avoided to fall down and occur accident.The device can be installed with powered, without setting up crossing frame, can quickly reduce power network broken string risk, O＆M cost is greatly reduced.
Description
Technical field
The utility model is related to field of transmission equipment, and in particular to a kind of ground wire connects Double safety device.
Background technology
Transmission line of electricity is responsible for long distance delivery electric power in power system.Generally being set up in the top of wire has one to two
Ground wire.In the process of running, breaking or going offline the wire below easily touching occur, and further causes wire short circuit tripping operation, can
Large area blackout can be caused.Wire, ground wire broken string particular across railway, highway and oil-gas pipeline cause secondary
Disaster, property very severe.
The main cause for cause above-mentioned broken string, going offline has：1st, the contact resistance of ground wire and suspension clamp is larger, meets with circuit
When being struck by lightning or be short-circuit, the electric current moment of tens kiloamperes can fuse ground wire.2nd, for being directly grounded ground wire, induced-current
Can continue by flowing to shaft tower including suspension clamp or strain clamp, U-shaped link and shaft tower suspension installing hole etc., in resistance mistake
, there is faint electric discharge ablation in big place, but accumulating over a long period can cause above-mentioned connection gold utensil fracture initiation to go offline accident.3rd, prevent
Vibration hammer releases the ground wire of failure, stranded in hitch point vibrating fatigue, is usually being difficult to find defect elimination, is finally developing into broken string.4、
Latch is not installed to bolt by regulation, causes hardware string to release string.5th, gold utensil is off quality, and string is fallen in fracture.
The risk that some prior arts, which are tentatively realized, to be reduced above-mentioned broken string, go offline, but go back in place of Shortcomings, mainly
Have：1st, preformed armor rods shield lines are set with suspension clamp, the mechanical performance of ground wire can be improved, but need to change suspension clamp,
Increase difficulty of construction and construction risk.The 2nd, shunting earthing or grounding means is installed in suspension clamp both sides, electric current reason can be reduced and caused
Broken string or the probability that goes offline, but in the event of broken string caused by mechanical reason and go offline, shunting earthing or grounding means is using aluminium conjunction
Golden and every side only has a branch of preformed armor rods, is not enough to bear the gravity and tension force of ground wire, still can occur accident.The 3rd, preformed armor rods is installed
Strain clamp can be to hold ground wire breaking or going offline, but the preformed armor rods strain clamp set up passes through heart-shaped a link and U rings
Deng gold utensil connection, in not by tension state, there is the problem of contact resistance is bigger than normal in the connection with shaft tower, be unfavorable for fundamentally keeping away
Exempt from broken string caused by electric current reason or go offline.4th, single preformed armor rods shunt bar occurs when by ground wire broken string tension force and released now
As.
Due to there are above factors, prior art can also satisfactorily resolve above-mentioned without a kind of technical scheme or product
The problem of existing.
Utility model content
The utility model purpose is to provide a kind of ground wire connection Double safety device, in transmission line wire charging operation
In the case of can be installed with ground potential safe ready, the problem of causing broken string to solve above-mentioned reason, go offline.
To achieve these goals, the utility model provides a kind of ground wire and connects Double safety device, is characterised by built on stilts
Ground wire between ground wire suspension clamp or strain clamp and damper installs two strain insulator shunt bars arranged side by side, and the of strain insulator shunt bar
One section is that the preformed wire harness of sheet is kinked on ground wire, and it is identical that preformed wire harness and ground wire top layer strands kink direction, second segment
It is cylindric wire harness, is stretched out in suspension clamp or strain clamp side with ground wire bifurcated, end crimping binding post simultaneously passes through bolt
It is connected on shaft tower.
Above-mentioned strain insulator shunt bar material is aluminum-clad steel wire or galvanized steel wire.
A kind of ground wire connection Double safety device of the present utility model, it is possible to achieve following beneficial effect：1st, for ground wire with
Good conductive channel is provided between shaft tower, it is to avoid the accident of lightning current and earth short circuit current fusing ground wire occurs, economy effect
Benefit is notable with social benefit.2nd, it is that good conductive channel is provided between ground wire and shaft tower, it is to avoid the induced-current on ground wire exists
The gold utensil junction of loose contact produces fine discharge, and ablation of accumulating over a long period is broken the risk of gold utensil, is protected so as to unnecessary
Hold normalization and the problem of infrared measurement of temperature detects whether to have electric discharge is carried out to hardware string at this, mitigate on the premise of safety is ensured
Maintenance work amoun.3rd, occur ground wire when suspension clamp or strain clamp exit break, ground line tension traction, drop can be born
The risk of the low touching wire that goes offline.When the 4th, occurring the disconnected string of connection gold utensil string, it can prevent ground wire is towed to release to go offline.5、
The first paragraph of strain insulator shunt bar is twisted into helical beam, kinks on the ground wire of suspension clamp side, realizes flexible mechanical stress and good
Good electrical contact, it is to avoid damage ground wire.6th, do not need line outage to install, improve power supply reliability.7th, it need not untie
Existing ground wire connected mode, reduction difficulty of construction and risk, construction period will not be to line lower wire and the railway of scissors crossing, public affairs
Road and personnel cause the risk of accidental damage, are greatly decreased and set up crossing frame expense.
Brief description of the drawings
Fig. 1 is used for the structural representation of anchor support for a kind of ground wire connection Double safety device of the present utility model.
Fig. 2 is used for the structural representation of tangent tower for a kind of ground wire connection Double safety device of the present utility model.
Embodiment
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of ground wire connection Double safety device of the present utility model is used for the structure of anchor support embodiment
Schematic diagram, installs two strain insulator shunt bars 1 arranged side by side, the of strain insulator shunt bar 1 between aerial earth wire strain clamp 8 and damper 9
One section is that the preformed wire harness of sheet is kinked on ground wire 7, and preformed wire harness kinks that direction is identical with ground wire 7, and second segment is cylinder
Shape wire harness, stretches out close to the side of strain clamp 8 with ground wire bifurcated, and end crimping binding post 2 is simultaneously connected to shaft tower by bolt 4
5, if there is no bolt mounting holes on shaft tower, it can increase by a L-shaped fixture 3, end crimping binding post 2 is simultaneously connected by bolt 4
It is connected to L-shaped fixture 3.The material of strain insulator shunt bar 1 is aluminum-clad steel wire or galvanized steel wire, per 5 monofilament of beam, with suspension hardware string 6 simultaneously
Connection is installed.
As shown in Fig. 2 a kind of ground wire connection Double safety device of the present utility model is used for the structure of tangent tower embodiment
Respectively there are two strain insulator shunt bars 1 arranged side by side schematic diagram, the both sides of overhead ground wire suspension clamp 8, and the first paragraph of strain insulator shunt bar 1 is sheet
Preformed wire harness is kinked on ground wire 7, and the preformed wire harness in both sides kinks that direction is identical, and second segment is cylindric wire harness, close
The vertical ground wire in the side of suspension clamp 8 stretches out, and end crimping binding post 2 is simultaneously connected to shaft tower 5 by bolt 4, if do not had on shaft tower
There are bolt mounting holes, can increase by a L-shaped fixture 3, end crimping binding post 2 is simultaneously connected to L-shaped fixture 3 by bolt 4.It is resistance to
It is aluminum-clad steel wire or galvanized steel wire to open the material of shunt bar 1, per 5 monofilament of beam, is installed in parallel with suspension hardware string 6.
Above-described embodiment is illustrated, and description is made only for using the technical solution of the utility model, new according to this practicality
The technical scheme of type, monofilament quantity of the strain insulator shunt bar 1 per beam can change according to ground wire section type number difference, to realize simultaneously
Mechanically stressed and conductive requirement is met, it is numerous to list herein, fall within protection domain of the present utility model.
Claims (2)
1. a kind of ground wire connects Double safety device, it is characterised in that between overhead ground wire suspension clamp or strain clamp and damper
Ground wire install two strain insulator shunt bars arranged side by side, the first paragraph of strain insulator shunt bar is that the preformed wire harness of sheet is kinked on ground wire,
Preformed wire harness kinks that direction is identical with ground wire top layer strands, and second segment is cylindric wire harness, in suspension clamp or strain clamp
Side is stretched out with ground wire bifurcated, and end crimping binding post is simultaneously bolt-connected on shaft tower.
2. ground wire according to claim 1 connects Double safety device, it is characterised in that described strain insulator shunt bar material is
Aluminum-clad steel wire or galvanized steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720070345.3U CN206490408U (en) | 2017-01-20 | 2017-01-20 | A kind of ground wire connects Double safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720070345.3U CN206490408U (en) | 2017-01-20 | 2017-01-20 | A kind of ground wire connects Double safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490408U true CN206490408U (en) | 2017-09-12 |
Family
ID=59765789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720070345.3U Expired - Fee Related CN206490408U (en) | 2017-01-20 | 2017-01-20 | A kind of ground wire connects Double safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206490408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336710A (en) * | 2017-01-20 | 2018-07-27 | 深圳带路科技有限公司 | A kind of ground wire connection Double safety device |
| CN108365585A (en) * | 2018-04-12 | 2018-08-03 | 广东电网有限责任公司 | A kind of anti-lightning strike break wire device of transmission line of electricity |
-
2017
- 2017-01-20 CN CN201720070345.3U patent/CN206490408U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336710A (en) * | 2017-01-20 | 2018-07-27 | 深圳带路科技有限公司 | A kind of ground wire connection Double safety device |
| CN108365585A (en) * | 2018-04-12 | 2018-08-03 | 广东电网有限责任公司 | A kind of anti-lightning strike break wire device of transmission line of electricity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |