CN209199704U - A kind of strain insulator arrester assembly - Google Patents
A kind of strain insulator arrester assembly Download PDFInfo
- Publication number
- CN209199704U CN209199704U CN201822154352.9U CN201822154352U CN209199704U CN 209199704 U CN209199704 U CN 209199704U CN 201822154352 U CN201822154352 U CN 201822154352U CN 209199704 U CN209199704 U CN 209199704U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- outer protective
- insulating outer
- cover
- core
- 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
- 239000012211 strain insulator Substances 0.000 title claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a kind of strain insulator arrester assemblies, including core, insulating outer protective cover, insulating outer protective cover is set on the outside of core, core inner space is disposed with top electrode, resistor disc, discharge electrode, insulated column, lower electrode from one end to the other end, and top electrode, lower electrode are separately positioned on the both ends inside core;The installation holding screw being piercing in outside core and insulating outer protective cover is connected in top electrode, the connection bolt being piercing in outside core and insulating outer protective cover is connected on discharge electrode, Binding post/stud, ball stud are connected on lower electrode, Binding post/stud is connected with ball stud, the insulated wire being piercing in outside core and insulating outer protective cover respectively;The insulating outer protective cover outside mask of section is equipped with shield between discharge electrode and lower electrode area, and shield is screened the ball stud that be connected with discharge electrode connection bolt, is connected with lower electrode.The utility model high reliablity, failure rate are low, and maintenance workload is few, play the role of further protecting arrester itself.
Description
Technical field
The utility model belongs to power transmission and distribution electrical equipment technical field, particularly relates to a kind of strain insulator arrester assembly.
Background technique
As power matching network route constantly lengthens, insulating design is popularized, and damage to crops caused by thunder causes line-outage contingency to highlight, insulator
Breakdown accident statistical magnitude constantly rises, and has seriously threatened distribution network line safe operation.Arrester is that one kind is connected in parallel on electrically
Protection equipment in equipment, as the inter space device being artificially arranged in route or equipment, under normal working voltage
In isolated insulation state, the breakdown ground connection of inter space device is under overvoltage with decompression of discharging, to play protection under overvoltage
Route perhaps apparatus insulated effect its be also sometimes referred to as over-voltage protector or overvoltage limiter;Arrester is usual
It is connected between power grid conducting wire and ground wire, however is also connected to electric appliance winding side or conducting wire sometimes.Currently, existing arrester is deposited
In following disadvantage: insulator can not be effectively prevent by lightning surge impact failure, it can not effective protection insulated conductor
From lightning-caused breaking, and it is main be existing arrester reliability is low, high failure rate, so as to cause maintenance workload
It is various;Meanwhile not in place are made for the safeguard procedures of discharge portion on existing arrester at present, it is not provided with special anti-
Shield measure apparatus, it is easy to guiding discharge part can be by the destruction of external adverse circumstances, so as to cause the failure of arrester
Rate increases.
Utility model content
The utility model makes up the deficiencies in the prior art aiming at the above problem, provides one kind and is mainly used for power transmission and distribution
It is resistance in electric system and for protecting electrical equipment and electric line to damage from atmospheric over-voltage and switching overvoltage
Arrester assembly is opened, is a kind of overvoltage protection.
To achieve the above object, the utility model adopts the following technical solution.
A kind of strain insulator arrester assembly of the utility model, it is characterised in that: including core, insulating outer protective cover, the core
Insulating outer protective cover is arranged in external side, and core inner space is disposed with top electrode, resistor disc, electric discharge electricity from one end to the other end
Pole, insulated column, lower electrode, the top electrode, lower electrode are separately positioned on the both ends inside core;In the top electrode
It is connected with the installation holding screw being piercing in outside core and insulating outer protective cover, is connected on the discharge electrode and is piercing in core
Connection bolt outside body and insulating outer protective cover is connected with Binding post/stud, ball stud, the wiring spiral shell on the lower electrode
Column is connected with ball stud, the insulated wire being piercing in outside core and insulating outer protective cover respectively;In the connection bolt, bulb spiral shell
Connection bolt sheath, ball stud sheath are provided on the outside of bolt, the connection bolt sheath, ball stud sheath are integrated
It is connected on insulating outer protective cover, the insulating outer protective cover outside mask of section is equipped with shield between discharge electrode and lower electrode area, described
Shield screen the ball stud that be connected with discharge electrode connection bolt, is connected with lower electrode.
As a kind of preferred embodiment of the utility model, the resistor disc is provided with three pieces, three pieces resistor disc successively phase
Connect and is set between top electrode and discharge electrode.
As another preferred embodiment of the utility model, in the insulating outer protective cover for being provided with installation holding screw one end
Outside is provided with end cap.
As another preferred embodiment of the utility model, the insulating outer protective cover includes oversheath ontology, evagination circle
Shape laminated structure, the evagination circular sheet-like structures integrated molding are connected on oversheath ontology, the evagination circular piece
Shape structure by outer diameter in the form of small one and large one equidistantly distributed on oversheath ontology.
As another preferred embodiment of the utility model, the evagination circular sheet-like structures at both ends on the oversheath ontology
Respectively correspond the inner end for being set to installation holding screw, discharge electrode and insulated column junction.
As another preferred embodiment of the utility model, the insulated column is epoxy fibreglass leading-drawing rod, described
Insulated wire is 0.6m high voltage insulated cable.
As another preferred embodiment of the utility model, the core is made of SMC plastic material, and described is exhausted
Edge oversheath, connection bolt sheath, ball stud sheath, shield are all made of silicone rubber material and are made.
As another preferred embodiment of the utility model, the connection bolt is bent bolt, connects bolt
The end of bending part exposes to outside connection bolt sheath;The ball stud sheath covers the half of ball stud, exposure
It is opposite with the exposed end of connection bolt bending part in the other half outer ball stud.
As another preferred embodiment of the utility model, the shield includes the cover of inner hollow, the cover
The both ends of body are respectively the first cover end opening communicated, the second cover end opening;The first cover end is spacious
Mouthful internal diameter be connected with that one end outer diameter of insulated wire is corresponding with the oversheath ontology of insulating outer protective cover, the first cover end
Portion's opening is fixedly connected on the oversheath ontology one end of insulating outer protective cover;The internal diameter of the second cover end opening with
The outer diameter of the oversheath ontology of insulating outer protective cover is corresponding, and the second cover end opening is fixedly connected on insulating outer protective cover
Oversheath ontology on.
As another preferred embodiment of the utility model, bolt receiving portion, evagination are respectively arranged on the cover
Circular sheet-like structures receiving portion, side on cover, opposite with bolt receiving portion and from the first cover end opening to second
Cover end opening offers lateral incision opening.
As another preferred embodiment of the utility model, the lateral incision opening two sides are provided with sealing connection dististyle,
The sealing connecting pin on piece is provided with corresponding multiple fixedly connected holes, is worn between two sealing connection dististyles by rivet
Cross fixedly connected hole sealing connection.
The beneficial effects of the utility model.
A kind of strain insulator arrester assembly provided by the utility model, is mainly used in power transmission and distribution electric system, for protecting
Electrical equipment and electric line is protected to damage from atmospheric over-voltage and switching overvoltage;Specifically, the utility model is for preventing
It protects in 10~20kV distribution line, insulator can be effectively prevent by lightning surge impact failure, it can be exhausted with effective protection
Edge conducting wire is from lightning-caused breaking;Maximum feature is that high reliablity, failure rate are low, and maintenance workload is few.Meanwhile the utility model
Shield set by strain insulator arrester assembly can protect discharge electrode and its connection connected on strain insulator arrester well
Discharge portion between bolt and lower electrode and its ball stud connected is played from the destruction of external adverse circumstances to keeping away
The effect that thunder device itself further protects reduces failure rate, reduces maintenance workload.
Detailed description of the invention
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with the drawings and the specific embodiments, the present invention will be further described in detail.It should be appreciated that tool described herein
Body embodiment is only used to explain the utility model, is not used to limit the utility model.
Fig. 1 is a kind of overall structure diagram of strain insulator arrester assembly of the utility model.
Fig. 2 is the direction the B view in Fig. 1.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Fig. 4 is the direction the D view in Fig. 1.
Fig. 5 is the direction the C view in Fig. 1.
Fig. 6 is a kind of schematic perspective view of the shield of strain insulator arrester assembly of the utility model.
Fig. 7 is a kind of side structure schematic view of the shield of strain insulator arrester assembly of the utility model.
Fig. 8 is the E-E cross-sectional view of Fig. 7.
Description of symbols in figure: 1 be installation holding screw, 2 be end cap, 3 be insulating outer protective cover, 4 be shield, 5 be rivet,
6 be insulated wire, 7 be lower electrode, 8 be top electrode, 9 be resistor disc, 10 be discharge electrode, 11 be connection bolt, 12 be connection spiral shell
Bolt sheath, 13 be insulated column, 14 be ball stud, 15 be ball stud sheath, 16 be Binding post/stud, 17 be core;31 be outer
Prominent circular sheet-like structures, 32 are oversheath ontology;41 be bolt receiving portion, 42 be the first cover end it is open, 43 be that lateral incision is opened
Mouthful, 44 be sealing connect dististyle, 45 be fixedly connected hole, 46 be evagination circular sheet-like structures receiving portion, 47 be cover, 48 be the
Two cover ends are open.
Specific embodiment
In conjunction with shown in attached drawing, a kind of strain insulator arrester assembly of the utility model, it is characterised in that: including core 17, insulation
Insulating outer protective cover 3 is arranged on the outside of the core 17 for oversheath 3, and 17 inner space of core is set gradually from one end to the other end
There are top electrode 8, resistor disc 9, discharge electrode 10, insulated column 13, lower electrode 7, the top electrode 8, lower electrode 7 are separately positioned on
Both ends inside core 17;The installation being piercing in outside core 17 and insulating outer protective cover 3 is connected in the top electrode 8 with tightly
Determine screw 1, the connection bolt 11 being piercing in outside core 17 and insulating outer protective cover 3 is connected on the discharge electrode 10, it is described
Lower electrode 7 on be connected with Binding post/stud 16, ball stud 14, the Binding post/stud 16 respectively be piercing in core 17 and absolutely
Ball stud 14, insulated wire 6 outside edge oversheath 3 are connected;It is provided in the outside of the connection bolt 11, ball stud 14
Bolt sheath 12, ball stud sheath 15 are connected, the connection bolt sheath 12, ball stud sheath 15 are integrally connected to
On insulating outer protective cover 3, it is equipped with shield 4 positioned at 3 outside mask of insulating outer protective cover of discharge electrode 10 and lower 7 segment of electrode, it is described
Shield 4 screen the ball stud 14 that be connected with discharge electrode 10 connection bolt 11, is connected with lower electrode 7.
As a kind of preferred embodiment of the utility model, the resistor disc 9 is provided with three pieces, and three pieces resistor disc 9 is successively
It is connected and is set between top electrode 8 and discharge electrode 10.
As another preferred embodiment of the utility model, protected being provided with installation with outside the insulation of 1 one end of holding screw
3 outside of set is provided with end cap 2.
As another preferred embodiment of the utility model, the insulating outer protective cover 3 includes oversheath ontology 32, evagination
Circular sheet-like structures 31, the integrated molding of evagination circular sheet-like structures 31 are connected on oversheath ontology 32, and described is outer
Prominent circular sheet-like structures 31 by outer diameter in the form of small one and large one equidistantly distributed on oversheath ontology 32.
As another preferred embodiment of the utility model, the evagination round sheet knot at both ends on the oversheath ontology 32
Structure 31 respectively corresponds 13 junction of the inner end for being set to installation holding screw 1, discharge electrode and insulated column.
As another preferred embodiment of the utility model, the insulated column 13 is epoxy fibreglass leading-drawing rod, described
Insulated wire 6 be 0.6m high voltage insulated cable.
As another preferred embodiment of the utility model, the core 17 is made of SMC plastic material, described
Insulating outer protective cover 3, connection bolt sheath 12, ball stud sheath 15, shield 4 are all made of silicone rubber material and are made.
As another preferred embodiment of the utility model, the connection bolt 11 is bent bolt, connects bolt
The end of 11 bending part exposes to outside connection bolt sheath 12;The ball stud sheath 15 covers ball stud 14
It is opposite with the exposed end of connection 11 bending part of bolt to be exposed to the other half outer ball stud 14 for half.
As another preferred embodiment of the utility model, the shield 4 includes the cover 47 of inner hollow, described
The both ends of cover 47 are respectively the first cover end opening 42, the second cover end opening 48 communicated;First cover
It is corresponding that the internal diameter of body end portion opening 42 and the oversheath ontology 32 of insulating outer protective cover 3 are connected with one end outer diameter of insulated wire 6, institute
The the first cover end opening 42 stated is fixedly connected on 32 one end of oversheath ontology of insulating outer protective cover 3;Described second
The internal diameter of cover end opening 48 and the outer diameter of oversheath ontology 32 of insulating outer protective cover 3 are corresponding, the second cover end
Portion's opening 48 is fixedly connected on the oversheath ontology 32 of insulating outer protective cover 3.
As another preferred embodiment of the utility model, bolt receiving portion 41, outer is respectively arranged on the cover 4
Prominent circular sheet-like structures receiving portion 46, side on cover 4, opposite with bolt receiving portion 41 and open from the first cover end
42 to the second cover end openings 48 offer lateral incision opening 43.
As another preferred embodiment of the utility model, 43 two sides of lateral incision opening are provided with sealing connection dististyle
44, the sealing connects and is provided with corresponding multiple fixedly connected holes 45 on dististyle 44, between two sealing connection dististyles 44
The sealing connection of fixedly connected hole 45 is passed through by rivet 5.
The utility model can effectively prevent insulator to be rushed by lightning surge for protecting in 10~20kV distribution line
Damage is hit, it can be with effective protection insulated conductor from lightning-caused breaking;The feature of the utility model maximum is high reliablity, maintenance
Workload is few;Arrester only protects lightning surge and a small amount of amplitude switching overvoltage, for excessively electric in general power frequency
Pressure is not responding to substantially, therefore the damage of arrester is all lightning impulse damage, and impact energy is big, is easier to blow, Ke Yicong
Side housing damaged condition judges whether product is intact;After arrester is by impact failure, route operation is had substantially no effect on, no
Ground fault can be generated, fortune inspection personnel can choose the suitable time and replace.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it still can be with
It modifies to the utility model or equivalent replacement, to reach identical technical effect;Needs are used as long as meeting, all in this reality
Within novel protection scope.
Claims (10)
1. a kind of strain insulator arrester assembly, it is characterised in that: including core (17), insulating outer protective cover (3), the core (17)
Insulating outer protective cover (3) are arranged in outside, and core (17) inner space is disposed with top electrode (8), resistance from one end to the other end
Piece (9), discharge electrode (10), insulated column (13), lower electrode (7), the top electrode (8), lower electrode (7) are separately positioned on core
The internal both ends of body (17);It is connected in the top electrode (8) and is piercing in the peace of core (17) and insulating outer protective cover (3) outside
Dress uses holding screw (1), is connected on the discharge electrode (10) and is piercing in the company of core (17) and insulating outer protective cover (3) outside
Connecting bolt (11) is connected with Binding post/stud (16), ball stud (14), the Binding post/stud on the lower electrode (7)
(16) respectively be piercing in ball stud (14), the insulated wire (6) of core (17) and insulating outer protective cover (3) outside and be connected;Described
Connection bolt (11), connection bolt sheath (12), ball stud sheath (15) are provided on the outside of ball stud (14), it is described
Connection bolt sheath (12), ball stud sheath (15) be integrally connected on insulating outer protective cover (3), be located at discharge electrode
(10) shield (4) are equipped with insulating outer protective cover (3) outside mask of lower electrode (7) segment, the shield (4) is screened and put
It electrode (10) connected connection bolt (11), the ball stud (14) that is connected with lower electrode (7).
2. a kind of strain insulator arrester assembly according to claim 1, it is characterised in that: the resistor disc (9) is provided with
Three pieces, three pieces resistor disc (9) are sequentially connected and are set between top electrode (8) and discharge electrode (10).
3. a kind of strain insulator arrester assembly according to claim 1, it is characterised in that: be provided with installation holding screw
(1) end cap (2) are provided on the outside of the insulating outer protective cover (3) of one end.
4. a kind of strain insulator arrester assembly according to claim 1, it is characterised in that: insulating outer protective cover (3) packet
Oversheath ontology (32), evagination circular sheet-like structures (31) are included, the evagination circular sheet-like structures (31) are integrally formed connection
In on oversheath ontology (32), the evagination circular sheet-like structures (31) by outer diameter in the form of small one and large one equidistantly distributed exist
On oversheath ontology (32).
5. a kind of strain insulator arrester assembly according to claim 4, it is characterised in that: two on the oversheath ontology (32)
The evagination circular sheet-like structures (31) at end respectively correspond the inner end for being set to installation holding screw (1), discharge electrode (10)
With insulated column (13) junction.
6. a kind of strain insulator arrester assembly according to claim 1, it is characterised in that: the insulated column (13) is epoxy
Glass fiber leading-drawing rod, the insulated wire (6) are 0.6m high voltage insulated cable.
7. a kind of strain insulator arrester assembly according to claim 1, it is characterised in that: the core (17) uses SMC
Plastic material is made, and the insulating outer protective cover (3), connection bolt sheath (12), ball stud sheath (15), shield (4) are equal
It is made of silicone rubber material.
8. a kind of strain insulator arrester assembly according to claim 1, it is characterised in that: the connection bolt (11) is curved
Shape bolt is rolled over, the end for connecting the bending part of bolt (11) exposes to connection bolt sheath (12) outside;The ball stud
Sheath (15) covers the half of ball stud (14), is exposed to the other half outer ball stud (14) and bends with bolt (11) are connect
The exposed end in part is opposite.
9. a kind of strain insulator arrester assembly according to claim 1, it is characterised in that: the shield (4) includes inside
Hollow cover (47), the both ends of the cover (47) are respectively the first cover end open (42) communicated, the second cover
Body end portion opening (48);The internal diameter of the first cover end open (42) and the oversheath ontology of insulating outer protective cover (3)
(32) one end outer diameter for being connected with insulated wire (6) is corresponding, and the first cover end open (42) are fixedly connected on insulation
On oversheath ontology (32) one end of oversheath (3);The internal diameter of the second cover end opening and insulating outer protective cover
The outer diameter of oversheath ontology is corresponding, and the second cover end open (48) are fixedly connected on the outer of insulating outer protective cover (3)
On sheath ontology (32).
10. a kind of strain insulator arrester assembly according to claim 9, it is characterised in that: on the cover (47) respectively
Be provided with bolt receiving portion (41), evagination circular sheet-like structures receiving portion (46), on cover (47), with bolt receiving portion (41)
Opposite side and lateral incision opening (43), institute are offered from the first cover end open (42) to the second cover end open (48)
Lateral incision opening (43) two sides stated are provided with sealing connection dististyle (44), are provided in sealing connection dististyle (44) opposite
The multiple fixedly connected holes (45) answered, two sealings are connected and are sealed by rivet (5) across fixedly connected hole (45) between dististyle (44)
Close connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154352.9U CN209199704U (en) | 2018-12-21 | 2018-12-21 | A kind of strain insulator arrester assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154352.9U CN209199704U (en) | 2018-12-21 | 2018-12-21 | A kind of strain insulator arrester assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209199704U true CN209199704U (en) | 2019-08-02 |
Family
ID=67429937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822154352.9U Active CN209199704U (en) | 2018-12-21 | 2018-12-21 | A kind of strain insulator arrester assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209199704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509601A (en) * | 2018-12-21 | 2019-03-22 | 辽宁华隆电力科技股份有限公司 | A kind of strain insulator arrester assembly |
-
2018
- 2018-12-21 CN CN201822154352.9U patent/CN209199704U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509601A (en) * | 2018-12-21 | 2019-03-22 | 辽宁华隆电力科技股份有限公司 | A kind of strain insulator arrester assembly |
| CN109509601B (en) * | 2018-12-21 | 2023-11-07 | 辽宁华隆电力科技股份有限公司 | Zhang Bilei resistant ware assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102486954B (en) | Multi-interspace self-expanding strong-airflow arc extinguishing lightning protection device | |
| CN201171150Y (en) | Overvoltage protector for open-resistant lever for avoiding wire from breaking due to lightning stroke | |
| CN109448939A (en) | A kind of tension-resistant rod external series gap metal oxide arrester | |
| CN201975189U (en) | Multifunctional transformer substation lightning arrester | |
| CN201975190U (en) | Bridge connection type shifting multi-function arrester | |
| CN209199692U (en) | A kind of tension-resistant rod external series gap metal oxide arrester | |
| CN109509601A (en) | A kind of strain insulator arrester assembly | |
| CN206595546U (en) | A kind of voltage protector with disconnector | |
| CN206878312U (en) | A kind of combined pin type arrester | |
| CN205621532U (en) | Outer clearance zinc oxide arrester is fixed to strain insulator pole | |
| CN109509596A (en) | A kind of metal oxide arrester | |
| CN209200377U (en) | A kind of strain insulator arrester shield | |
| CN209199696U (en) | A kind of novel metal oxide arrester | |
| CN209199703U (en) | A kind of metal oxide arrester | |
| CN102486955B (en) | Lightning protection device with combination of multigap driven arc extinguishing and driving arc extinguishing by strong airflow in constrained space | |
| CN213424750U (en) | Series multi-gap metal oxide arrester | |
| CN201260026Y (en) | Lightning protector with series interval | |
| CN114336179B (en) | Lightning-proof broken line protection device for shielding, insulating and isolating 10kV overhead insulated line | |
| CN213781719U (en) | Insulator protector | |
| CN205141649U (en) | Over -voltage protector | |
| CN204012615U (en) | A kind of Broken of Overhead Insulation Lines By Lightning protector | |
| CN207504541U (en) | A kind of band is detached from transition bracket t shore formula switch overvoltage lightning protector | |
| CN208337122U (en) | A kind of 10kV suspended insulated guide wire with the anti-lightning strike broken string of shielded layer | |
| CN205959697U (en) | A novel lightning protection device for 10kV distribution lines | |
| CN205564406U (en) | Novel explosion -proof compound column type insulator of inside and outside double gap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |