CN208061742U - A kind of accident indicator of insulator parallel connection gaps electrode - Google Patents
A kind of accident indicator of insulator parallel connection gaps electrode Download PDFInfo
- Publication number
- CN208061742U CN208061742U CN201820423257.1U CN201820423257U CN208061742U CN 208061742 U CN208061742 U CN 208061742U CN 201820423257 U CN201820423257 U CN 201820423257U CN 208061742 U CN208061742 U CN 208061742U
- Authority
- CN
- China
- Prior art keywords
- connector
- tube body
- accident
- connection
- electrode
- 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.)
- Active
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 238000002845 discoloration Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 208000025274 Lightning injury Diseases 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Abstract
The utility model is related to a kind of accident indicators of insulator parallel connection gaps electrode comprising conductive casing, casing include tube body and end, and tube body is socketed on the end of clearance electrode；It is connected by the first connector between end and tube body, end is in first position state；After lightning fault occurs, the temperature of casing increases and the connection of the first connector can be made to melt failure, and end is in second position state.The accident indicator, being capable of fast and accurate judgement fault point convenient for fault inspection personnel after transmission line of electricity is tripped due to lightning fault.
Description
Technical field
The utility model is related to transmission line of electricity lightning-protection engineering fields, and in particular to a kind of insulator parallel connection gaps electrode
Accident indicator.
Background technology
In order to reduce lightning stroke injury caused by insulator, part circuit is equipped with insulator parallel connection clearance device.Power transmission line
Road insulator parallel connection gaps be it is a kind of being different from traditional lightning protection measures " diverting type " protected mode, thought is that circuit is allowed to have
Certain tripping rate with lightning strike, but by the Insulation Coordination between parallel connection gaps and insulator, reach connect using gap draw flashover channel,
Power frequency arc effect is dredged, to avoid insulator breakdown damage, improve reclosing success rate, avoids the hair of permanent fault
It is raw；Uniform power frequency electric field can also be reached by parallel connection gaps simultaneously, realize poor insulation configuration etc. effect.
Operating experience show parallel connection gaps can effective protection insulator from broken by lightning, improve transmission line of electricity power supply
Reliability.But insulator is not burnt after insulator is struck by lightning equipped with circuit after parallel connection gaps, and insulator surface does not damage,
Simultaneously because lightning stroke melting point very little, only has slight thawing trace on the head of parallel connection gaps electrode, is aoxidized through wet weather
Lightning stroke melting point can aoxidize quickly afterwards, corrosion is understood in part, carried out cover to melting point and the electrode in normal operation is not assorted
Different (normal clearance electrode is since by long-term rain drop erosion, gap head has slight corrosion trace).
Therefore, after transmission line of electricity is tripped due to lightning fault, when fault inspection personnel need to carry out the line inspection to faulty line,
It is difficult to precisely be judged fault point, certain difficulty is caused to fault inspection.
Utility model content
The purpose of this utility model is to provide a kind of accident indicator of insulator parallel connection gaps electrode, in transmission line of electricity
It, being capable of fast and accurate judgement fault point convenient for fault inspection personnel after being tripped due to lightning fault.
In order to solve the above technical problems, the indicating fault dress of insulator parallel connection gaps electrode provided by the utility model
It sets comprising conductive casing, described sleeve pipe include tube body and end, and the tube body is socketed on the end of the clearance electrode
Portion；It is connected by the first connector between the end and the tube body, the end is in first position state；When generation thunder
After hitting failure, the temperature of described sleeve pipe increases and the connection of first connector can be made to melt failure, and the end is in
Second position state.
Since the second position state of end is different from first position state, by the location status for observing end
Can determine whether lightning fault occurs herein, it can be by naked eyes directly when carrying out trouble shoot convenient for fault inspection personnel
Observation or a situation arises for sem observation fault point by looking in the distance, with timely, accurate judgement fault point, and in time more by the casing
It changes, avoids when fault point next time is repeated by being struck by lightning, it is difficult to which which time lightning fault judgement is, simplifies the failure line inspection and asks
Topic.The accident indicator is simple in structure, convenient for disassembly and assembly, convenient for timely and effectively judging lightning failure point, improves and checks efficiency
While, it uses manpower and material resources sparingly.
Simultaneously as the casing is socketed on the outside of the end of clearance electrode, the end of clearance electrode can be protected, be kept away
Exempt from it in the long-term use, because of situations such as by the caused damage of wind and weather, also, when circuit is by being struck by lightning,
Clearance electrode discharges, and the end of casing will be burnt, be damaged, and protect the end of clearance electrode, its surface is avoided to damage
Wound, at this time, it is only necessary to casing be removed and be replaced, nothing needs to change clearance electrode, easy to operate and good economy performance.
Optionally, the second connector is additionally provided between the end and the tube body, after lightning fault occurs, described
The Joint failure of a connection piece, second connector keep connection.
Optionally, the outer wall of the end is coated with off-color material, and after lightning fault occurs, the temperature of described sleeve pipe increases
And the off-color material can be made to be irreversibly changed.
Optionally, second connector is with connecting line flexible.
Optionally, the connecting line insulation is connected between the end and the tube body.
Optionally, second connector is connecting line, and both ends pass through insulated connecting piece and the end and institute respectively
Tube body is stated to fix.
Optionally, first connector is connector, two connecting pins of the connector respectively with the end and
The tube body is fixed, and at least one connecting pin is welded and fixed by solder, after lightning fault occurs, described sleeve pipe
Temperature increases and weld seam can be made to melt.
Optionally, a connecting pin of the connector is welded and fixed by solder, another described connecting pin is logical
It crosses and is screwed.
Optionally, the second connector is additionally provided between the end and the tube body, second connector is worn in an axial direction
Cross the connector.
Optionally, the madial wall of the tube body is installed with metal clips, and the tube body is socketed on the end of the clearance electrode
When portion, the metal clips is in compressive state and provides radial pressure to the clearance electrode.
Optionally, the middle part of the tube body is circumferentially with annular groove along it.
Description of the drawings
Fig. 1 is the structural schematic diagram for the accident indicator that the utility model embodiment is provided.
In attached drawing 1, the reference numerals are as follows：
1- tube bodies, 11- annular grooves；The ends 2-；3- connectors；4- connecting lines；5- weld seams；6- insulated connecting pieces；7- metals
Shrapnel.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
Referring to FIG. 1, the structural schematic diagram for the accident indicator that Fig. 1, which is the utility model embodiment, to be provided.
The utility model embodiment provides a kind of accident indicator of insulator parallel connection gaps electrode comprising can lead
The casing of electricity, which includes tube body 1 and end 2, wherein tube body 1 is socketed on the end of clearance electrode, end 2 and tube body 1 it
Between pass through the first connector connect.When lightning fault not occurring, end 2 is in first position state, i.e., the end 2 passes through first
Connector is connect with tube body 1, when lightning fault occurs, since casing is electrically conductive, is struck by lightning in circuit, clearance electrode electric discharge
When, moment is made the temperature of casing increase by huge lightning current, since the temperature of casing increases (about 1500 DEG C) and to be somebody's turn to do
The connection function of first connector is since fusing is failed, at this point, end 2 be in second position state, i.e. the end 2 and tube body 1
Between there is no first connection connection.
Since the second position state of end 2 is different from first position state, by the position shape for observing end 2
State can determine whether lightning fault occurs herein, can be straight by naked eyes when carrying out trouble shoot convenient for fault inspection personnel
It connects observation or a situation arises for sem observation fault point by looking in the distance, with timely, accurate judgement fault point, and in time more by the casing
It changes, avoids when fault point next time is repeated by being struck by lightning, it is difficult to which which time lightning fault judgement is, simplifies the failure line inspection and asks
Topic.The accident indicator is simple in structure, convenient for disassembly and assembly, convenient for timely and effectively judging lightning failure point, improves and checks efficiency
While, it uses manpower and material resources sparingly.
Simultaneously as the casing is socketed on the outside of the end of clearance electrode, the end of clearance electrode can be protected, be kept away
Exempt from it in the long-term use, because of situations such as by the caused damage of wind and weather, also, when circuit is by being struck by lightning,
Clearance electrode discharges, and the end of casing will be burnt, be damaged, and protect the end of clearance electrode, its surface is avoided to damage
Wound, at this time, it is only necessary to casing be removed and be replaced, nothing needs to change clearance electrode, easy to operate and good economy performance.
In the above-described embodiments, the second connector is additionally provided between end 2 and tube body 1, after lightning fault occurs, first
The connection function of connector fails, and the second connector keeps connection.That is, when end is in first position state, the end
First 2 are connect by the first connector and the second connector with tube body 1, and when end 2 is in second position state, the end 2 is only logical
It crosses the second connector and tube body 1 connects, i.e., after lightning fault occurs, end 2 does not completely disengage with tube body 1 and falls to ground
Face, therebetween since the effect of the second connector is still in connection status, at this time more convenient for fault inspection personnel check.
Certainly, in the present embodiment, the first position state of the end 2 can also be only passes through between end 2 and tube body 1
First connector connects, and end 2 is thoroughly detached between tube body 1 under the state of the second position and falls to ground, tour personnel
Judge whether this occurs lightning fault by the way that whether observation end 2 still remains.And the scheme equipped with the second connector can be strong
Change difference of the casing in first position state and second position state, is found convenient for tour personnel.
In the above-described embodiments, the outer wall in end 2 is also coated with off-color material, the off-color material can select heat indicating paint or
Color-change powder etc. can change the coating of color after temperature raising, and discoloration is irreversible, specifically, to the specific of the heat indicating paint
Color is not limited, as long as its color before and after meeting high temperature variation is apparent, in order to find, below to become under normal condition
The color of colored paint is black, will become to illustrate for red after meeting high temperature.When lightning fault occurs, the temperature liter of casing
Height, the off-color material of end 2 will occur to change colour (reddening) with temperature, that is to say, that a red end 2 passes through the second connection
Part is connect with tube body 1, when fault inspection personnel are when carrying out trouble shoot, the indicating fault can be easily found, into one
Step is conducive to fault inspection personnel and finds fault point when carrying out trouble shoot.
In the above-described embodiments, the second connector is connecting line 4, which has certain flexibility, when being struck by lightning
After failure, connecting line 4 is still connected between end 2 and tube body 1, and end 2 is fallen in midair, and can under the action of connecting line 4
It swings with the wind, convenient for being found.It is the end that a red end 2 is suspended on clearance electrode, just if the end 2 reddens
It is with the naked eye found in tour personnel.
Certainly, in the present embodiment, the concrete structure of second connector is not limited, such as can be also set to
The both ends of connecting rod, the connecting rod are hinged with end 2 and tube body 1 respectively, after the connection function failure of the first connector, connection
The both ends of bar are respectively relative to end 2 and tube body 1 and rotate so that end 2 is fallen in midair, and can under the action of connecting line 4
It swings with the wind.
When the second connector is connecting line 4, the connecting line 4 insulation is connected between end 2 and tube body 1.That is,
When lightning fault occurs, obstructed overcurrent in the connecting line 4 avoids the temperature moment of the connecting line 4 from rising and high fusing, Jin Erbao
Demonstrate,prove the integrity of its connection.
Specifically, the connection type of the connecting line 4 may include at least one of following three kinds：
The first connection type：The both ends of connecting line 4 are fixed by insulated connecting piece 6 and end 2 and tube body 1 respectively；
Second of connection type：Connecting line 4 is selected into isolation material；
The third connection type：It sets the connecting line 4 to such as tungsten filament high-melting-point connecting line 4, is even struck by lightning
When failure, it is intact that temperature also can guarantee that the connecting line 4 connects after increasing.
Wherein, in the first connection type, the specific material of connecting line 4 is not required, can be conductive material
Can also be isolation material, wherein the insulated connecting piece 6 can be insulated bolt or the ring of the insulation bound for connecting line 4
Shape structure, material can be with isolation materials such as Ceramics；In second of connection type and the third connection type, even
Fitting can be that conductive material can also be isolation material.
Connecting line 4 can select any of the above-described kind of connection type to be connected between end 2 and tube body 1, or select first
Kind connection type is combined with second of connection type or the third connection type, in the present embodiment, with reference to figure 1, passes through first
Kind connection type and the third connection type combine, and using high-melting-point tungsten filament as connecting line 4, both ends pass through the spiral shell that insulate respectively
Bolt is connect with end 2 and tube body 1, to be further ensured that the connection function of the connecting line 4.
In the above-described embodiments, the first connector is connector 3 comprising two connecting pins, two connecting pin difference
It is fixed with tube body 1 and end 2, also, in two connecting pins, at least one welded by solder realizes fixation, is being struck by lightning
After failure, the temperature of casing increases, and the temperature can be such that weld seam 5 melts, and do not require solder, can such as select herein
The fusible connection work for making connector 3 between end 2 and tube body 1 after lightning fault occurs for scolding tin, about 200 DEG C of fusing point
With failure, when equipped with connecting line 4, which is still fully connected between end 2 and tube body 1.
In the above-described embodiments, fixed form of the connector 3 between end 2 and tube body 1 includes following three kinds：
The first fixed form：One connecting pin is fixed by welding and tube body 1, another connecting pin is otherwise
It is fixed with end 2；
Second of fixed form：One connecting pin is fixed by welding and end 2, another connecting pin is otherwise
It is fixed with tube body 1；
The third fixed form：Two connecting pins are fixed by welding and tube body 1 and end 2 respectively.
Wherein, other manner can be threadedly coupled, can also be clamping etc. modes to realize fixation.
As shown in Figure 1, in the present embodiment, the connector 3 in the present embodiment is fixed by the first fixed form, is somebody's turn to do
Connector 3 can be realized between end 2 and tube body 1 by any one of above-mentioned three kinds of fixed forms, not do herein specific
Limitation.
In the present embodiment, the first connector can also be the weld seam 5 between end 2 and tube body 1, and the weld seam 5 is by above-mentioned low
Melting-point solder is formed, i.e., is welded and fixed by solder between end 2 and tube body 1, and when lightning fault occurs, weld seam 5 melts,
Connection function fails.And when end 2 and tube body 1 are connected by connector 3, it is low can also to set connector 3 to such as aluminium
Fusing point material, the temperature raising of lightning fault rear sleeve, which occurs, to melt the connector 3, further ensure that and lightning stroke event is occurring
After barrier, the connection function of connector 3 fails so that end 2 enters second position state.
In addition, the second connector (connecting line 4) in the present embodiment passes through connector 3 and is connect with end 2 and tube body 1,
That is, the connector 3 is internally provided with axially extending bore, connecting line 4 passes through through-hole.When end 2 is in first position state,
Connector 3 and connecting line 4 are connected between end 2 and tube body 1 simultaneously, at this point, connecting line 4 is in stacked state.And when generation
When lightning fault, the connection function of connector 3 fails, and connecting line 4 is in exceptionally straight state at this time, and connection function still has,
End 2 is fallen, and is only connect with tube body 1 by connecting line 4, and end 2 is in second position state, as shown in Figure 1.
Certainly, in the present embodiment, specific requirement is not done for the relative position relation of connecting line 4 and connector 3, such as
Connecting line 4 and connector 3 can be also set up in parallel, or by the both ends of connecting line 4 lateral wall with end 2 and tube body 1 respectively
It is fixed.And connecting line 4 passes through the structure of connector 3 so that structure is more simple, more to the setting length requirement of connecting line 4
It is low, and connector 3 plays a protective role to connecting line 4 on its interior.
In the above-described embodiments, the madial wall of tube body 1 is fixedly provided with metal clips 7, when tube body 1 is socketed on clearance electrode
Outside after, which can play the role of compressing sturdy clearance electrode.Specifically, the metal clips 7 is fixedly arranged on pipe
The inner wall of body 1, after clearance electrode is inserted into tube body 1, clearance electrode will move along the surface of metal clips 7 and squeeze metal
Shrapnel 7 so that metal clips 7 is in compressive state, and then the metal clips 7 will provide a radial pressure to clearance electrode,
So that the connection between tube body 1 and clearance electrode is more stable, avoid issuing raw the case where falling off in the outer force effect such as wind, together
When, tube body 1 and clearance electrode good fit, good conductivity.
Tube body 1 equipped with metal clips 7, internal diameter may be slightly larger than the diameter of clearance electrode, in the two in combination with stabilization
In the case of convenient for socket progress.In addition, in the present embodiment, it is equal to the concrete structure of metal clips 7, quantity or fixed form etc.
It is not limited, it such as can be by the metal clips 7 similar to the elastic piece structure inside the cap of a pen, as long as between can guarantee and being socketed on tube body 1
When the end of gap electrode, metal clips 7 be at compressive state and to clearance electrode provide radial pressure make tube body 1 and
Gap electrode, which combines, to be stablized.
In the above-described embodiments, the middle part of tube body 1 is circumferentially with annular groove 11 along it, due to the installation position of clearance electrode
It is higher, therefore, it can be taken by the profession band electric tool with forked type structure compatible with annular groove 11 when replacing tube body 1
Under, that is to say, that operating personnel can exert oneself from lower position, be acted on by the cell wall of forked type structure and annular groove 11, complete
The dismounting of the accident indicator.
Wherein, middle part refers to any position between 1 both ends of tube body, is not limited to center position herein, as long as ensureing
There is side wall at the both ends of the annular groove so as to be dismantled to it.
Specifically, the profession with electric tool can be provided with forked type structure can livewire work operating lever, operating personnel
The forked type structure of its end is caught in annular groove 11 by operating lever so that the axially opposing fixation of operating lever and tube body 1, this
When, operating personnel exert oneself to push operating lever along the end of clearance electrode so that tube body 1 is detached from clearance electrode, you can is removed
Tube body 1.After replacing tube body 1 or end 2, by the end of 1 alignment gap electrode of tube body and firmly by tube body 1 to clearance electrode side
It pushes, you can complete the installation of tube body 1, dismounting is more convenient.
Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the scope of protection of the utility model.
Claims (11)
1. a kind of accident indicator of insulator parallel connection gaps electrode, which is characterized in that including conductive casing, the set
Pipe includes tube body (1) and end (2), and the tube body (1) is socketed on the end of the clearance electrode；
It is connected by the first connector between the end (2) and the tube body (1), the end (2) is in first position shape
State；
After lightning fault occurs, the temperature of described sleeve pipe increases and the connection of first connector can be made to melt failure,
The end (2) is in second position state.
2. accident indicator according to claim 1, which is characterized in that between the end (2) and the tube body (1)
It is additionally provided with the second connector, after lightning fault occurs, the Joint failure of first connector, second connector is kept
Connection.
3. accident indicator according to claim 2, which is characterized in that the outer wall of the end (2) is coated with discoloration material
Material, after lightning fault occurs, the temperature of described sleeve pipe increases and the off-color material can be made to be irreversibly changed.
4. accident indicator according to claim 2 or 3, which is characterized in that second connector is with flexibility
Connecting line (4).
5. accident indicator according to claim 4, which is characterized in that connecting line (4) insulation is connected to described
Between end (2) and the tube body (1).
6. accident indicator according to claim 4, which is characterized in that second connector is connecting line (4),
Both ends are fixed by insulated connecting piece (6) and the end (2) and the tube body (1) respectively.
7. according to claim 1-3 any one of them accident indicators, which is characterized in that first connector is connection
Two connecting pins of body (3), the connector (3) are fixed and at least one with the end (2) and the tube body (1) respectively
The connecting pin is welded and fixed by solder, and after lightning fault occurs, the temperature of described sleeve pipe increases and can make weld seam (5)
Fusing.
8. accident indicator according to claim 7, which is characterized in that a connection of the connector (3)
End is welded and fixed by solder, another described connecting pin is threadably secured.
9. accident indicator according to claim 7, which is characterized in that between the end (2) and the tube body (1)
It is additionally provided with the second connector, second connector passes axially through the connector (3).
10. according to claim 1-3 any one of them accident indicators, which is characterized in that the madial wall of the tube body (1)
It is installed with metal clips (7), when the tube body (1) is socketed on the end of the clearance electrode, the metal clips (7) is in pressure
Contracting state simultaneously provides radial pressure to the clearance electrode.
11. according to claim 1-3 any one of them accident indicators, which is characterized in that the middle part edge of the tube body (1)
It is circumferentially with annular groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820423257.1U CN208061742U (en) | 2018-03-27 | 2018-03-27 | A kind of accident indicator of insulator parallel connection gaps electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820423257.1U CN208061742U (en) | 2018-03-27 | 2018-03-27 | A kind of accident indicator of insulator parallel connection gaps electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208061742U true CN208061742U (en) | 2018-11-06 |
Family
ID=63986474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820423257.1U Active CN208061742U (en) | 2018-03-27 | 2018-03-27 | A kind of accident indicator of insulator parallel connection gaps electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208061742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565077A (en) * | 2018-03-27 | 2018-09-21 | 国网冀北电力有限公司承德供电公司 | A kind of accident indicator of insulator parallel connection gaps electrode |
-
2018
- 2018-03-27 CN CN201820423257.1U patent/CN208061742U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565077A (en) * | 2018-03-27 | 2018-09-21 | 国网冀北电力有限公司承德供电公司 | A kind of accident indicator of insulator parallel connection gaps electrode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102856021B (en) | Follow current-free arc lightening-protection gap protection device | |
| CN103730834B (en) | Jet-propelled parallel connection clearance device | |
| CN103326142B (en) | A kind of low-melting-point metal cable continuation device | |
| CN208061742U (en) | A kind of accident indicator of insulator parallel connection gaps electrode | |
| CN201655725U (en) | High voltage current limiting fuse with fusing indication function | |
| CN203056371U (en) | Jet-propelled parallel gap device | |
| CN104701743A (en) | Countable cut arc lightning arrester | |
| CN201845734U (en) | Novel dropping type fuse | |
| CN208061743U (en) | A kind of accident indicator of insulator parallel connection gaps electrode | |
| CN108565077A (en) | A kind of accident indicator of insulator parallel connection gaps electrode | |
| CN207426686U (en) | A kind of surge protector | |
| CN203300828U (en) | Low-melting point metal cable connection device | |
| CN105610140A (en) | Lightning protection surge protection device | |
| CN108565076A (en) | A kind of accident indicator of insulator parallel connection gaps electrode | |
| CN210272241U (en) | Fuse carrier of drop-out fuse with lining tube | |
| CN202796277U (en) | No-freewheeling arc lightning protection gap protecting device | |
| CN109360700B (en) | Method for indicating fault of low-voltage lightning arrester | |
| CN205583049U (en) | Safety power supply structure | |
| CN207233672U (en) | A kind of surge protector | |
| CN216436166U (en) | Visual earthing device of overcurrent | |
| CN204857641U (en) | Fuse | |
| CN104952564A (en) | Insulator | |
| CN205159272U (en) | Fuse cutout | |
| CN204966438U (en) | Drop out fuse carries and melts piece | |
| CN209561113U (en) | A kind of patch type hot melt breaks compound varistor device assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |