CN208669062U - A kind of high voltage bearing distribution shaft tower of lightning protection - Google Patents
A kind of high voltage bearing distribution shaft tower of lightning protection Download PDFInfo
- Publication number
- CN208669062U CN208669062U CN201821093477.9U CN201821093477U CN208669062U CN 208669062 U CN208669062 U CN 208669062U CN 201821093477 U CN201821093477 U CN 201821093477U CN 208669062 U CN208669062 U CN 208669062U
- Authority
- CN
- China
- Prior art keywords
- shaft tower
- insulator crossarm
- lightning protection
- glass steel
- hollow glass
- 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
Landscapes
- Insulators (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The application provides a kind of high voltage bearing distribution shaft tower of lightning protection, comprising: shaft tower, lightning rod, at least one set of insulator crossarm, Multifunctional cable clamp and cage lightning protection component;Cage lightning protection component includes ground lead and cable guide;Every group of insulator crossarm includes hollow glass steel main body and at least one reinforcing rib that hollow glass steel body interior is arranged in;Two are equipped with about the symmetrical insulated pull rod of shaft tower in the position close to cross-arm both ends on insulator crossarm;One end of every insulated pull rod is fixedly connected with insulator crossarm, and the other end is fixedly connected with shaft tower, and two insulated pull rods and insulator crossarm form isosceles triangular structure.The distribution shaft tower of above structure, insulator crossarm intensity is high and light weight, good insulation preformance, two insulated pull rods and insulator crossarm form firm triangle framework, makes the mechanical strength and load capacity enhancing of cross-arm and shaft tower, cage lightning protection system improves the ability of the resistance to lightning stroke of distribution shaft tower thunder-lightning.
Description
Technical field
This application involves power transmission and transforming equipment technical field more particularly to a kind of high voltage bearing distribution shaft towers of lightning protection.
Background technique
Shaft tower is one of the basic equipment of transmission line of electricity and overhead distribution, mainly by steel or armored concrete system
At including insulator chain, aerial earth wire and relevant connection gold utensil composition on shaft tower.The main function of shaft tower is that support is exhausted
Edge substring, conducting wire and lightning conducter, so that there is enough space insulation intervals between conducting wire.But route is inevitable in operation
To be struck by lightning or other various overvoltage phenomenons, be so that insulation distance between route and shaft tower not enough generates over the ground
Electric discharge phenomena.It is light then or cause line tripping, weight then or cause power equipment damage or power outage.
To prevent shaft tower flashover electric discharge phenomena, common method is increased the insulator number adjustment to shaft tower, to reach
To the insulating capacity for improving shaft tower.But in 35kV and distribution line below, the insulator the piece number used is only 1-2 piece, is led
Linear distance shaft tower apart from very little, it is limited by the method effect for increasing insulator the piece number, in addition consider the receiving weight of shaft tower
Amount and cost, the method by increasing insulator the piece number will not have greatly improved to the insulating capacity of route, another method
It is to be changed to bare conductor to be coated with the cable of polyethylene insulation material, but the cost generated is 2-3 times higher than bare conductor, gives simultaneously
Shaft tower bring load-bearing burden will also greatly improve.
Utility model content
The application provides a kind of high voltage bearing distribution shaft tower of lightning protection, to improve existing distribution shaft tower lightning protection and proof voltage water
It is flat.
The embodiment of the present application provides a kind of high voltage bearing distribution shaft tower of lightning protection, comprising: keeping away for head of mast is arranged in shaft tower
Thunder needle is arranged at least one set of insulator crossarm on shaft tower top, the Multifunctional cable clamp on the insulator crossarm and cage is arranged in
Formula lightning protection component;The cage lightning protection component include ground lead and be arranged in the insulator crossarm both ends for described in fixed
The cable guide of ground lead;
Insulator crossarm described in every group includes hollow glass steel main body and the hollow glass steel body interior is arranged in extremely
A few reinforcing rib;
The radial cross-section of the hollow glass steel main body is rectangle, fixation of the hollow glass steel main body on shaft tower
The upper and lower surface of hollow glass steel main body is parallel to the horizontal plane in angle;
The inner surface opposite with any two of the hollow glass steel main body is solid respectively for the two sides of the every reinforcing rib
Fixed connection;
Two are equipped with about the symmetrical insulated pull rod of the shaft tower in the position close to cross-arm both ends on the insulator crossarm;
One end of the every insulated pull rod is fixedly connected with the insulator crossarm, the other end and the fixed company of the shaft tower
It connects, so that two insulated pull rods and the insulator crossarm form isosceles triangular structure.
Further, multiple groups insulator crossarm is in the upper parallel setting of the shaft tower.
Further, the insulated pull rod is process by high strength glass fiber reinforced plastic.
Further, the insulated pull rod and the insulator crossarm are integrally formed.
Further, the inside of the hollow glass steel main body is equipped with two orthogonal reinforcing ribs.
Further, the top line both ends of the ground lead are connect by two metallic support rods with the lightning rod, described
The downlink of top line and is arranged on the cable guide at each group insulator crossarm both ends along the both ends downlink of insulator crossarm described in multiple groups
Fixed support;The bottom of the downlink converges being aligned and is fixed on shaft tower lower part, is connected with earthing or grounding means.
Further, the Multifunctional cable clamp includes upper block metal plates, intermetallic metal plate and the lower block of gold merged up and down
Belong to plate, the both ends of the upper piece metal plates merged up and down, intermetallic metal plate and lower piece of metal plates are respectively equipped with logical
Saturating bolt hole, being fitted with the upper block metal plates of fastening, intermetallic metal plate and lower piece of metal plates keeps its incorporated tight
Fixing bolt and nut;At the intermediate position of upper piece of metal plates and intermetallic metal plate, the through slot equipped with fixed conducting wire is described logical
The upper half slot position of slot is in upper piece of metal plates, and the lower half slot position of the through slot is on intermetallic metal plate;The intermetallic metal plate
Block and the lower piece of metal plates are located at the two sides up and down of the insulator crossarm, so that the lower piece of metal plates support is lived
The insulator crossarm.
From the above technical scheme, the high voltage bearing distribution shaft tower of lightning protection provided by the embodiments of the present application, comprising: shaft tower,
The lightning rod of head of mast is set, at least one set of insulator crossarm on shaft tower top is set, is arranged in more on insulator crossarm
Function wire clamp and cage lightning protection component;Cage lightning protection component includes ground lead and being used for for insulator crossarm both ends is arranged in
The cable guide of dead earth lead;Every group of insulator crossarm includes hollow glass steel main body and is arranged in hollow glass steel body interior
At least one reinforcing rib;The radial cross-section of hollow glass steel main body is rectangle, hollow glass steel main body consolidating on shaft tower
Determining angle is parallel to the horizontal plane the upper and lower surface of hollow glass steel main body;The two sides of every reinforcing rib respectively with hollow glass steel
The inner surface that any two of main body are opposite is fixedly connected;On insulator crossarm close to cross-arm both ends position be equipped with two about
The symmetrical insulated pull rod of shaft tower;One end of every insulated pull rod is fixedly connected with insulator crossarm, and the other end is fixedly connected with shaft tower,
Two insulated pull rods and insulator crossarm form isosceles triangular structure.The distribution shaft tower of above structure, insulator crossarm intensity are high-quality
Amount is gently to reduce shaft tower load, good insulation preformance to improve the dielectric level of distribution line, two insulated pull rods and insulation
Cross-arm forms firm triangle framework, further enhances the mechanical strength and load capacity of cross-arm and shaft tower, is erected at absolutely
The ground lead of the connection lightning rod of the surrounding of edge cross arm end, is built into cage lightning protection system, improves distribution shaft tower lightning protection
The ability of the resistance to lightning stroke of electricity.The application distribution shaft tower can effectively reduce the electric discharge flashover such as lightning stroke, pollution flashover, bird pest or problem with grounding draws
The distribution power transmission failure risen.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of the application structural representation of the high pressure resistant distribution shaft tower of lightning protection shown according to an exemplary embodiment
Figure;
Fig. 2 is the radial cross section of the insulator crossarm of distribution shaft tower shown in the application Fig. 1;
Fig. 3 is the structural representation of the high pressure resistant distribution shaft tower of the application another lightning protection shown according to an exemplary embodiment
Figure;
Fig. 4 is another radial cross section of the insulator crossarm of distribution shaft tower shown in the application Fig. 1 or Fig. 3;
Fig. 5 is the structural schematic diagram of the Multifunctional cable clamp of distribution shaft tower shown in the application Fig. 1 or Fig. 3.
Wherein, 1- shaft tower;2- lightning rod;3- insulator crossarm;4- Multifunctional cable clamp;5- cage lightning protection component;6- insulation is drawn
Bar;31- hollow glass steel main body;32- reinforcing rib;51- ground lead;52- cable guide;53- metallic support rod;The upper block gold of 41-
Belong to plate;42- intermetallic metal plate;Block metal plates under 43-;44- through slot.
Specific embodiment
It referring to Fig. 1 and Fig. 2, is the high voltage bearing distribution tower structure schematic diagram of lightning protection provided by the present application.The distribution shaft tower
Include: shaft tower 1, the lightning rod 2 at 1 top of shaft tower is set, at least one set of insulator crossarm 3 on 1 top of shaft tower is set, setting exists
Multifunctional cable clamp 4 and cage lightning protection component 5 on the insulator crossarm 3;The cage lightning protection component 5 includes ground lead
51 and be arranged in 3 both ends of insulator crossarm for fixing the cable guide 52 of the ground lead 51;
Insulator crossarm 3 described in every group includes hollow glass steel main body 31 and is arranged inside the hollow glass steel main body 31
At least one reinforcing rib 32;
The radial cross-section of the hollow glass steel main body 31 is rectangle, and the hollow glass steel main body 31 is on shaft tower 1
Fixed angle the upper and lower surface of hollow glass steel main body 31 is parallel to the horizontal plane;
The two sides of the every reinforcing rib 32 inner surface opposite with any two of the hollow glass steel main body respectively
It is fixedly connected;
Two are equipped with about the symmetrically insulation drawing of shaft tower 1 in the position close to cross-arm both ends on the insulator crossarm 3
Bar 6;
One end of the every insulated pull rod 6 is fixedly connected with the insulator crossarm 3, and the other end and the shaft tower 1 are fixed
Connection, so that two insulated pull rods 6 form isosceles triangular structure with the insulator crossarm 3.
In this application, using insulated glass fibre reinforced plastic crossbar, original steel cross-arm is substituted, mitigates cross-arm weight, reduces shaft tower
Load.The insulator crossarm non-corrosive of glass fibre material, may be implemented it is test free, it is non-maintaining, and have excellent insulation performance,
The dielectric level that distribution line can be effectively improved, the structure combined using hollow glass steel main body with netted reinforcing rib are being guaranteed
While cross-arm mechanical strength level, further mitigate cross-arm quality.Technical scheme on insulator crossarm also by setting
Insulated pull rod is set, and two insulated pull rods and insulator crossarm is made to form firm triangle framework, further enhances cross-arm
And the mechanical strength and load capacity of shaft tower.
In addition, the surrounding at least one set of insulator crossarm end, is provided with the ground lead of connection lightning rod, is built into cage
Formula lightning protection system improves the ability of the resistance to lightning stroke of distribution shaft tower thunder-lightning.
It should be noted that in technical scheme, according to actual needs, design insulator crossarm group number, every group
The wall thickness of the hollow glass steel main body of insulator crossarm and hollow volume, thickness, the density of every reinforcing rib etc..Meanwhile according to reality
Border needs, and designs two insulated pull rods and insulator crossarm is formed by the base angle angle of isosceles triangle, the length of insulated pull rod
Deng base angle angle, the length of insulated pull rod of isosceles triangle also determine insulated pull rod on insulator crossarm and on shaft tower
Link position.The high voltage bearing distribution shaft tower of lightning protection provided by the present application to above-mentioned design parameter without limitation.
However, according to technical scheme, in some preferred embodiments, when the setting multiple groups insulator crossarm on shaft tower
When, it is spaced a distance multiple groups insulator crossarm 3 on 1 top of shaft tower and is arranged in parallel, work as insulator crossarm as shown in Figure 3
The embodiment that 3 group number is 2.
In this application, above-mentioned insulated pull rod 6 is also process by high strength glass fiber reinforced plastic, to guarantee the exhausted of distribution line
Edge is horizontal.Optionally, the both ends of insulated pull rod can be fixedly connected by screw or bolt with insulator crossarm and shaft tower, can also be with
Insulator crossarm is integrally formed.
The reinforcing rib that inside about hollow glass steel main body 31 is arranged, refering to Fig. 4, in some preferred embodiments, when
When the quantity of reinforcing rib in one group of insulator crossarm is 2, two reinforcing ribs is made mutually to hang down in the inside of hollow glass steel main body 31
Directly, with the strength stability of reinforced insulation cross-arm.
In this application, the top line both ends of the ground lead 51 pass through two metallic support rods 53 and the lightning rod 2
Connection, the downlink of the top line and are arranged on each group insulator crossarm 3 along the both ends downlink of insulator crossarm 3 described in multiple groups
The fixed support of the cable guide 52 at both ends;The bottom of the downlink converges being aligned and is fixed on shaft tower lower part, with earthing or grounding means phase
Even.It is erected at insulator crossarm end surrounding, connection lightning rod ground lead, cage lightning protection system is built into, improves and match
The ability of the resistance to lightning stroke of net shaft tower thunder-lightning.
Fig. 5 shows the specific structure of the application Multifunctional cable clamp 4, the Multifunctional cable clamp 4 include merge up and down upper piece
Metal plates 41, intermetallic metal plate 42 and lower piece of metal plates 43, the upper piece metal plates 41 merged up and down, intermediate gold
The both ends for belonging to plate 42 and lower piece of metal plates 43, are respectively equipped with penetrating bolt hole, be fitted with the upper block metal plates of fastening, in
Between metal plates and lower piece of metal plates make its incorporated fastening bolt and nut;In upper piece of metal plates 41 and centre gold
The intermediate position for belonging to plate 42, the through slot 44 equipped with fixation conducting wire, the upper half slot position of the through slot 44 in upper piece of metal plates 41,
The lower half slot position of the through slot 44 is on intermetallic metal plate 42;The intermetallic metal plate 42 and the lower piece of metal plates 43
The two sides up and down of the insulator crossarm 3 are located at, so that insulator crossarm 3 is stated in the 43 support residence of lower piece of metal plates.
The advantages of above-mentioned Multifunctional cable clamp, is: on a wire clamp while realizing secure wires, non-piercing breaking line preventive or wearing
Thorn breaking line preventive and gap discharge lightning protection function are integrated.It is a clamp device first, be mounted on insulator crossarm end or in
Portion locks conducting wire by mechanical pressure;Secondly it is a wire breakage preventing device, by the non-piercing to insulated conductor on wire clamp or wear
The design for piercing breaking line preventive molded line slot, conducting wire is connected to wire clamp, and when lightning stroke, fixation arc root will not be formed on insulated conductor, from
And prevent insulated conductor interrupts camber line;Thirdly it is the wire clamp with lightning protection function, by gap discharge stick by thunder
Electric current introduces the earth, protects insulator crossarm not punctured by thunder and lightning and dodges road, prevents lightning stroke trip.
By above embodiments it is found that the high voltage bearing distribution shaft tower of lightning protection provided by the embodiments of the present application, comprising: shaft tower,
The lightning rod of head of mast is set, at least one set of insulator crossarm on shaft tower top is set, is arranged in more on insulator crossarm
Function wire clamp and cage lightning protection component;Cage lightning protection component includes ground lead and being used for for insulator crossarm both ends is arranged in
The cable guide of dead earth lead;Every group of insulator crossarm includes hollow glass steel main body and is arranged in hollow glass steel body interior
At least one reinforcing rib;The radial cross-section of hollow glass steel main body is rectangle, hollow glass steel main body consolidating on shaft tower
Determining angle is parallel to the horizontal plane the upper and lower surface of hollow glass steel main body;The two sides of every reinforcing rib respectively with hollow glass steel
The inner surface that any two of main body are opposite is fixedly connected;On insulator crossarm close to cross-arm both ends position be equipped with two about
The symmetrical insulated pull rod of shaft tower;One end of every insulated pull rod is fixedly connected with insulator crossarm, and the other end is fixedly connected with shaft tower,
Two insulated pull rods and insulator crossarm form isosceles triangular structure.
The distribution shaft tower of above structure, insulator crossarm intensity high quality gently to reduce shaft tower load, good insulation preformance from
And the dielectric level of distribution line is improved, two insulated pull rods and insulator crossarm form firm triangle framework, further increase
The strong mechanical strength and load capacity of cross-arm and shaft tower, are erected at the ground connection of the connection lightning rod of the surrounding of insulator crossarm end
Lead is built into cage lightning protection system, improves the ability of the resistance to lightning stroke of distribution shaft tower thunder-lightning.The application distribution shaft tower can have
Effect reduces distribution power transmission failure caused by the electric discharge flashover such as lightning stroke, pollution flashover, bird pest or problem with grounding.
Same and similar part may refer to each other between each embodiment in this specification.Especially for embodiment
Speech, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to saying in embodiment of the method
It is bright.
Above-described the utility model embodiment does not constitute the restriction to scope of protection of the utility model.
Claims (7)
1. a kind of high voltage bearing distribution shaft tower of lightning protection characterized by comprising keeping away at the top of shaft tower (1) is arranged in shaft tower (1)
At least one set of insulator crossarm (3) on shaft tower (1) top is arranged in thunder needle (2), the more function being arranged on the insulator crossarm (3)
It can wire clamp (4) and cage lightning protection component (5);The cage lightning protection component (5) includes ground lead (51) and is arranged described
The cable guide (52) for being used to fix the ground lead (51) at insulator crossarm (3) both ends;
Insulator crossarm described in every group (3) includes hollow glass steel main body (31) and setting in the hollow glass steel main body (31)
At least one reinforcing rib (32) in portion;
The radial cross-section of the hollow glass steel main body (31) is rectangle, and the hollow glass steel main body (31) is in shaft tower (1)
On fixed angle the upper and lower surface of hollow glass steel main body (31) is parallel to the horizontal plane;
The inner surface opposite with any two of the hollow glass steel main body is solid respectively for the two sides of the every reinforcing rib (32)
Fixed connection;
Two are equipped with about the shaft tower (1) symmetrically insulation drawing in the position close to cross-arm both ends on the insulator crossarm (3)
Bar (6);
One end of the every insulated pull rod (6) is fixedly connected with the insulator crossarm (3), and the other end and the shaft tower (1) are solid
Fixed connection, so that two insulated pull rods (6) and the insulator crossarm (3) form isosceles triangular structure.
2. the high voltage bearing distribution shaft tower of lightning protection according to claim 1, which is characterized in that multiple groups insulator crossarm (3) is in institute
State shaft tower (1) upper parallel setting.
3. the high voltage bearing distribution shaft tower of lightning protection according to claim 1, which is characterized in that the insulated pull rod (6) is by height
Strength-Glass steel is process.
4. the high voltage bearing distribution shaft tower of lightning protection according to claim 3, which is characterized in that the insulated pull rod (6) and institute
State insulator crossarm (3) integrated molding.
5. the high voltage bearing distribution shaft tower of lightning protection according to claim 1, which is characterized in that the hollow glass steel main body
(31) inside is equipped with two orthogonal reinforcing ribs.
6. the high voltage bearing distribution shaft tower of lightning protection according to claim 1, which is characterized in that the top of the ground lead (51)
Line both ends are connect by two metallic support rods (53) with the lightning rod (2), and the downlink of the top line is along described in multiple groups
The both ends downlink of insulator crossarm (3), and the fixed support of cable guide (52) for being arranged on each group insulator crossarm (3) both ends;It is described
The bottom of downlink converges being aligned and is fixed on shaft tower lower part, is connected with earthing or grounding means.
7. the high voltage bearing distribution shaft tower of lightning protection according to claim 1, which is characterized in that Multifunctional cable clamp (4) packet
Upper piece metal plates (41), intermetallic metal plate (42) and the lower piece of metal plates (43) merged up and down is included, it is described to merge up and down
Upper piece metal plates (41), intermetallic metal plate (42) and lower piece of metal plates (43) both ends, be respectively equipped with penetrating spiral shell
Keyhole, being fitted with fastening upper block metal plates (41), intermetallic metal plate (42) and lower piece of metal plates (43) makes it synthesize one
The fastening bolt and nut of body;At the intermediate position of upper piece of metal plates (41) and intermetallic metal plate (42), led equipped with fixation
The through slot (44) of line, the upper half slot position of the through slot (44) is in upper piece of metal plates (41), the lower half slot position of the through slot (44)
In on intermetallic metal plate (42);The intermetallic metal plate (42) and the lower piece of metal plates (43) are located at described exhausted
The two sides up and down of edge cross-arm (3), so that insulator crossarm (3) are stated in lower piece of metal plates (43) the support residence.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821093477.9U CN208669062U (en) | 2018-07-11 | 2018-07-11 | A kind of high voltage bearing distribution shaft tower of lightning protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821093477.9U CN208669062U (en) | 2018-07-11 | 2018-07-11 | A kind of high voltage bearing distribution shaft tower of lightning protection |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208669062U true CN208669062U (en) | 2019-03-29 |
Family
ID=65827569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821093477.9U Active CN208669062U (en) | 2018-07-11 | 2018-07-11 | A kind of high voltage bearing distribution shaft tower of lightning protection |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208669062U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111379460A (en) * | 2020-04-21 | 2020-07-07 | 赵艳军 | A fixed bolster for garden engineering wireless network lays |
-
2018
- 2018-07-11 CN CN201821093477.9U patent/CN208669062U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111379460A (en) * | 2020-04-21 | 2020-07-07 | 赵艳军 | A fixed bolster for garden engineering wireless network lays |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201466635U (en) | Insulating tower head of composite insulating pole tower | |
CN110911065B (en) | Lightning protection electroceramic insulator | |
KR20190034270A (en) | Cross arms, and it includes angle towers and tension towers | |
CN208669062U (en) | A kind of high voltage bearing distribution shaft tower of lightning protection | |
CN201460375U (en) | Four-loop upright umbrella type pylon | |
CN209250182U (en) | A kind of 10kV frame-type single loop triangle arrangement insulator crossarm | |
CN114188106A (en) | Column type porcelain insulator for high-voltage line | |
CN105113841B (en) | A kind of 35kV double loops cast composite material pole tower | |
CN109779373B (en) | Cable terminal rod for breaking one circuit in double-circuit same-rod parallel-rack transmission line | |
CN109826482A (en) | A kind of anti-lightning strike shaft tower of composite construction | |
CN208126940U (en) | A kind of compound pillar insulator with lightning protection function | |
CN201274402Y (en) | Damping dual needle type winding attach prevention lightning arrester | |
CN210264112U (en) | Lightning protection pole tower with composite structure | |
CN209492414U (en) | Contact net additive wire suspension arrangement and catenary mast device | |
CN211313561U (en) | Connecting device for double-loop cable line and overhead line | |
CN108412289A (en) | A kind of insulation electric pole of 10kV high-tension lines | |
CN210127694U (en) | Cable terminal pole for breaking one cable in double-circuit same-pole parallel power transmission line | |
CN105390938A (en) | Lightning rod convenient to mount | |
CN209344741U (en) | A kind of ladder lead type ground wire grounding structure for weather-proof steel tube tower | |
CN208618905U (en) | A kind of insulation electric pole of 10kV high-tension line | |
CN207436638U (en) | A kind of aramid fiber composite material cross-arm | |
CN208618911U (en) | A kind of insulation head of 10kV high-tension line | |
CN203481748U (en) | Standard type tower insulation cross-arm combination | |
CN206023151U (en) | The big span terminal cable bars of 10KV | |
CN209250199U (en) | The lightning-arrest line bracket of electric pole and the lightning-arrest line bracket of double rod electric pole |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |