CN215474606U - Anti-ice branch electric connection device for insulated carrier cable - Google Patents
Anti-ice branch electric connection device for insulated carrier cable Download PDFInfo
- Publication number
- CN215474606U CN215474606U CN202121232663.8U CN202121232663U CN215474606U CN 215474606 U CN215474606 U CN 215474606U CN 202121232663 U CN202121232663 U CN 202121232663U CN 215474606 U CN215474606 U CN 215474606U
- Authority
- CN
- China
- Prior art keywords
- wire
- insulating
- insulated
- electric connection
- ice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model relates to an anti-ice branch electric connection device for an insulated carrier cable, which comprises: the upper part of the electric connection wire is tightly connected with the bare core of the insulated carrier cable through at least one metal conducting ring, and an insulating protective sleeve is arranged at the connection part of the electric connection wire for sealing and insulating; the middle part of the electric connection wire is provided with an insulating sleeve; one end of the insulating sleeve, which is close to the insulating carrier cable, is provided with at least one water-blocking umbrella skirt; the lower part of the electric connecting wire is tightly connected with the contact wire through a contact wire clamp. The anti-icing branch electric connecting device for the insulated carrier cable is suitable for the insulated carrier cable, can meet the requirement that the splicing part of the carrier cable and the electric connecting wire resists 27.5KV high voltage, has an insulating function, and can avoid the phenomenon of short circuit of the carrier cable caused by ice hanging in a tunnel.
Description
Technical Field
The utility model relates to the technical field of application of contact net erection accessories, in particular to an anti-ice branch electric connection device for an insulated carrier cable.
Background
The electric network is a whole formed by various voltage substations and power transmission and distribution lines in an electric power system, is called as an electric power network for short, and comprises three units of power transformation, power transmission and power distribution. The electrified railway contact network power supply line, called an electrified railway for short, refers to a railway capable of supplying power to a train to run, and is named because corresponding electrified equipment needs to be matched along the railway to provide power guarantee for the train. Electrified railways have been created with the advent of electric locomotives, which do not themselves have a power source and require a power supply system along the railway to continuously supply electric power to the electric locomotives to drive the vehicles. Because the electric locomotive has stronger transportation capacity advantage compared with the internal combustion locomotive, the transportation capacity of the electrified railway under the same scale is far superior to that of a non-electrified railway, and the electric locomotive becomes the mainstream type of the modern railway.
The electric connection device is used for electric connection between power supply equipment and a contact network, between contact network tracks, between switches, between turnouts and between a catenary and a contact line in an electrified railway contact network system.
However, the overhead line system power supply line erected in the tunnel often forms an icehanger on the top of the tunnel due to tunnel water seepage or water vapor condensation in winter, and when the icehanger is close to the exposed catenary, the damage of breakdown short circuit is easy to occur.
The insulated carrier cable is an effective product for solving the problem that the short-circuit tripping fault of the power supply equipment is caused by the shortened safe air insulation distance of the electrified power supply equipment due to ice hanging formed in a tunnel in winter. The existing branch electric connection devices are all suitable for bare stranded wire carrier cables, do not have an insulation function, and cannot meet the requirement of the insulation distance of the ice-hung tunnel in the safe air.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide an anti-ice branch electric connection device for an insulated carrier cable, which is suitable for the insulated carrier cable, can meet the requirement that the continuous connection part of the carrier cable and an electric connection wire resists 27.5KV high voltage, has an insulation function, and can avoid the phenomenon of carrier cable short circuit caused by ice hanging in a tunnel, so as to solve the problems in the background technology.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
an anti-icing branch electrical connection for insulated carrier wires, comprising: an electrical connection wire;
the upper part of the electric connecting wire is tightly connected with a bare core of the insulated carrier cable through at least two metal conducting rings, and an insulating protective sleeve is arranged at the joint of the electric connecting wire and the bare core for sealing and insulating;
the middle part of the electric connection wire is provided with an insulating sleeve;
the lower part of the electric connecting wire is tightly connected with the contact wire through a contact wire clamp.
As a further improvement of the utility model, one end of the insulating sleeve in the middle of the electric connecting wire, which is close to the insulating carrier cable, is provided with at least one water-blocking umbrella skirt.
As a further improvement of the utility model, the insulating protective sleeve comprises two symmetrically arranged protective sleeve bodies,
one side of the protective sleeve body is provided with an access groove, the two access grooves are abutted to form an electric connection cavity, and the shape of the electric connection cavity is matched with the shape of the connection part of the electric connection wire and the bare core of the insulated carrier cable;
a first arc groove is formed in the left side of the access groove, and the two first arc grooves are abutted to form a first wiring channel for accessing the insulated carrier cable into the electric connection cavity from the left side;
a second arc groove is formed in the right side of the access groove, and the two second arc grooves are abutted to form a second wiring channel for accessing the insulated carrier cable into the electric connection cavity from the right side;
the lower side of the access groove is provided with a third arc groove, and the third arc grooves are butted to form a third wiring channel for the electric connection wire to be accessed into the electric connection cavity from the lower side.
As a further improvement of the utility model, the inner diameters of the first wiring channel and the second wiring channel are matched with the outer diameter of the insulating layer of the insulating catenary, and the inner diameter of the third wiring channel is matched with the outer diameter of the insulating sleeve in the middle of the electric connection wire.
As a further improvement of the utility model, the two protective sleeve bodies are bonded and sealed by sealant.
As a further improvement of the utility model, the contact wire clamp comprises two clamp bodies which are arranged in a central symmetry way,
the wire clamp body is provided with at least two bolt through holes, the bolt through holes on the two wire clamp bodies correspond to each other and are used for applying bolt groups to enable the two wire clamp bodies to be folded;
the wire clamp body is provided with wire pressing grooves, and the two wire pressing grooves are folded to clamp the electric connecting wire;
the wire clamp body is provided with wire clamp tooth parts, the two wire clamp tooth parts are arranged corresponding to the grooves on two sides of the contact wire, and the two wire clamp tooth parts are folded to clamp the contact wire.
As a further improvement of the utility model, the wire clamp body is provided with a wire clamp semi-circular arc part and a wire clamp inferior arc part corresponding to the wire pressing groove, the cross section of the wire clamp semi-circular arc part is in a semi-circular arc shape, the cross section of the wire clamp inferior arc part is in a inferior arc shape, and the two wire clamp bodies are arranged in a central symmetry manner, so that the wire clamp semi-circular arc part is arranged opposite to the wire clamp inferior arc part and is used for firmly clamping the electric connecting wire during folding.
As a further improvement of the utility model, the waterproof umbrella skirt is made of insulating materials and is integrally tower-shaped.
As a further improvement of the utility model, the insulating sleeve in the middle of the electric connecting wire is made of high-pressure-resistant heat-shrinkable material.
As a further improvement of the utility model, the insulating protective sleeve is made of high-voltage resistant material and can resist 27.5kV high voltage.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
1. the upper part of the electric connecting wire is connected with the bare core of the insulated carrier cable in a pressing mode through at least two metal conductive rings, the splicing is more stable and firm, and then the insulated protective sleeve is used for sealing, so that the electric connecting part can resist the high voltage of 27.5 KV.
2. The utility model provides an insulating protective sheath's first wiring passageway and second wiring passageway all suit are on insulating layer of insulating carrier cable, and third wiring passageway suit is on the insulating cover at electric connecting wire middle part, make insulating protective sheath whole leakproofness better, and insulating nature improves.
3. The utility model provides an be provided with insulating cover on the electric connection, it is provided with at least one umbrella skirt that blocks water near insulating carrier cable one end, can prevent that the frozen water from forming the breakdown along electric connection sagging.
4. The electric connection line lower part of this application is connected with contact line pressure through the contact line fastener, connects more firmly, and electric conductivity is good.
In conclusion, the anti-ice branch electric connection device for the insulated carrier cable is suitable for the bare stranded wire carrier cable and has the insulation function.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a perspective view of the embodiment.
Fig. 2 is a schematic illustration of the connection of the electrical connection lines of fig. 1 to an insulated messenger die.
Figure 3 is a schematic view of a protective sheath body of an embodiment.
FIG. 4 is a schematic view of two embodiment of the protective sheath bodies bonded together to form an insulating protective sheath.
Fig. 5 is a front view of the wire clamp body of the embodiment.
Fig. 6 is a perspective view of fig. 5.
Fig. 7 is an exploded view of the contact wire clamp of an embodiment.
Wherein: 1. an electrical connection wire; 2. insulating a carrier cable; 3. a contact line; 4. an insulating protective sleeve; 5. a metal conducting ring; 6. a contact wire clamp; 7. a water-blocking umbrella skirt; 40. a protective sheath body; 41. accessing the groove; 42. a first arc groove; 43. a second arc groove, 44, a third arc groove; 61. a wire clamp body; 62. pressing a wire groove; 63. a wire clamp semi-circular arc portion; 64. a wire clamp inferior arc part; 65. a wire clamp through hole; 66. a wire clamp threaded hole; 67. a wire clamping tooth part.
Detailed Description
For the purposes of promoting a clear and complete description of the utility model, and for purposes of making apparent and enabling the utility model to be embodied and broadly described, reference will now be made to the following description of certain embodiments, wherein the terms "center", "vertical", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used in the orientation and positional relationship indicated in the drawings, which are for convenience in describing the utility model and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
The specific embodiment is as follows:
this embodiment is suitable for on the anchor section of erectting in the tunnel, and its spatial distribution is: the tunnel top is arranged above the insulated carrier cable 2, the contact wire 3 is arranged below the insulated carrier cable 2, and the electric connecting device of the embodiment is arranged between the insulated carrier cable 2 and the contact wire 3, namely the structure shown in fig. 1. An ice-resistant branch electrical connection for an insulated messenger wire as shown in fig. 1, comprising: an electrical connection line 1.
With reference to fig. 2, the upper portion of the electrical connection line 1 is connected to the bare core (a bare core is peeled off on site) of the insulated catenary 2 by pressing 3 metal conductive rings 5, the cross section of the metal conductive ring 5 is C-shaped, the upper and lower arcs of the metal conductive ring respectively correspond to the bare core of the insulated catenary 2 and the electrical connection line 1, the metal conductive ring 5 is pressed to cause irreversible pressing deformation, so that the connection of the electrical connection line 1 and the bare core of the insulated catenary 2 can be completed, and then an insulating protective sleeve 4 as shown in fig. 3 and 4 is arranged at the connection position for sealing and insulation.
The insulating protective sleeve 4 is made of high-voltage-resistant insulating materials and comprises two symmetrically-arranged protective sleeve bodies 40, one side of each protective sleeve body 40 is provided with an access groove 41, the access grooves 41 are abutted (as shown in figure 4) to form an electric connection cavity, and the shape of the electric connection cavity is matched with the shape of the bare core connecting part of the electric connecting wire 1 and the insulating catenary 2, so that the electric connection cavity can cover the connecting part, the connecting part is protected in a better insulating mode, and the high voltage of 27.5KV can be resisted by the connecting part.
As shown in fig. 3 and 4, a first arc groove 42 is arranged on the left side of the access groove 41, and the two first arc grooves 42 are abutted to form a cylindrical first wiring channel for the insulated catenary 2 to be accessed into the electric connection cavity from the left side, the inner diameter of the first wiring channel is matched with the outer diameter of the insulating layer of the insulated catenary 2, and when the two protective jacket bodies 40 are bonded, the first wiring channel is in sealing fit with the insulating layer of the insulated catenary 2 on the left side.
As shown in fig. 3 and 4, a second arc groove 43 is arranged on the right side of the access groove 41, the second arc grooves 43 abut against each other to form a cylindrical second wiring channel, the second wiring channel is used for accessing the insulated catenary 2 into the electric connection cavity from the right side, the inner diameter of the second wiring channel is matched with the outer diameter of the insulated layer of the insulated catenary 2, and when the two protective sleeve bodies 40 are bonded, the second wiring channel is in sealing fit with the insulated layer of the insulated catenary 2 on the right side. In this embodiment, the first wiring channel and the second wiring channel are concentrically disposed.
As shown in fig. 3 and 4, a third arc groove 44 is arranged on the lower side of the access groove 41, and the two third arc grooves 44 are abutted to form a third wiring channel, so as to access the electrical connection wire 1 into the electrical connection cavity from the lower side, the inner diameter of the third wiring channel is adapted to the outer diameter of the insulating sleeve of the electrical connection wire 1, and when the two protective sleeve bodies 40 are bonded, the third wiring channel is in sealing fit with the insulating sleeve of the electrical connection wire 1 on the lower side.
The overall shape of the insulating protective sleeve 4 in this embodiment is determined according to the shapes of the electrical connection cavity, the first wiring channel, the second wiring channel and the third wiring channel and the thickness of the insulating material, and the insulating protective sleeve can resist high voltage of 27.5 KV. In this embodiment, the two protective sheath bodies 40 are bonded and sealed by sealant.
As shown in fig. 1, the middle of the electrical connection line 1 is provided with an insulating sleeve, which is made of a high-pressure-resistant heat-shrinkable material, and the insulating sleeve can be cut into insulating sleeves with different lengths according to the working conditions on site, preferably, the insulating sleeves can be sleeved on the electrical connection line 1 when the electrical connection line leaves a factory, and the bare core is stripped according to the working conditions on site.
As shown in fig. 1 and 2, two water-blocking sheds 7 are disposed at one end of the insulating sheath close to the insulating messenger wire 2, the water-blocking sheds 7 are made of insulating materials, are integrally tower-shaped, are sleeved outside the insulating sheath at the middle part of the electric connection wire 1, and can be preferably integrally formed with the insulating sheath at the middle part of the electric connection wire 1.
As shown in fig. 5 to 7, the lower part of the electrical connection line 1 is connected with the contact line 3 by pressing with the contact line clamp 6.
As shown in fig. 5 to 7, the contact wire clamp 6 includes two clamp bodies 61 arranged in a central symmetry, two bolt through holes, namely a clamp through hole 65 and a clamp threaded hole 66, are arranged on the clamp bodies 61, and the bolt through holes on the two clamp bodies 61 correspond to each other, that is, the clamp through hole 65 on one clamp body 61 corresponds to the clamp threaded hole 66 on the other clamp body 61, and are used for applying a bolt group of a half-thread bolt, so that the two clamp bodies 61 are folded and firmly pressed.
As shown in fig. 5 to 7, the wire clamp body 61 is provided with a circular arc-shaped wire pressing groove 62, and the two wire pressing grooves 62 are closed to clamp the electrical connection wire 1. The clamp body 61 is provided with a clamp semicircular arc portion 63 and a clamp inferior arc portion 64 corresponding to the wire pressing groove 62, the section of the clamp semicircular arc portion 63 is in a semicircular arc shape, the section of the clamp inferior arc portion 64 is in an inferior arc shape, and the two clamp bodies 61 are arranged in a centrosymmetric manner, so that the clamp semicircular arc portion 63 is opposite to the clamp inferior arc portion 64 and is used for firmly clamping the electric connecting wire 1 during folding.
As shown in fig. 5 to 7, a thread clamping portion 67 is disposed on the thread clamping body 61, the two thread clamping portions 67 are disposed corresponding to the grooves on both sides of the contact line 3, and the two thread clamping portions 67 are folded to clamp the contact line 3. The clamp body 61 is provided with a narrow flat portion (located below the clamp teeth 67 shown in fig. 7) corresponding to the cross-sectional profile of the contact wire 3 for more tightly compressing the contact wire 3.
The electric connection line 1 of this embodiment adopts stranded soft metal stranded conductor to twist to become the sinle silk, makes it have certain flexibility, and when ice water drips on the electric connection device of this embodiment, the umbrella skirt 7 that blocks water can change the water flow direction, prevents ice water along the direction of electric connection line 1 downflow. When water drops form an ice hanger under the water-blocking umbrella skirt 7, the unformed ice hanger can be shaken off under the influence of vibration when an electric bow passes through because the electric connecting wire 1 is a flexible metal stranded wire, so that the growth of the ice hanger is eliminated.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An anti-ice branch electric connection device for an insulated carrier cable, comprising: an electrical connection wire (1);
the upper part of the electric connecting wire (1) is tightly connected with a bare core of the insulated carrier cable (2) through at least two metal conducting rings (5), and an insulating protective sleeve (4) is arranged at the joint of the electric connecting wire and the bare core for sealing and insulating;
the middle part of the electric connection wire (1) is provided with an insulating sleeve;
the lower part of the electric connecting wire (1) is tightly connected with the contact wire (3) through a contact wire clamp (6).
2. The ice-resistant branch electrical connection for insulated carrier wires of claim 1, wherein: and one end of the insulating sleeve in the middle of the electric connecting wire (1), which is close to the insulating carrier cable (2), is provided with at least one water-blocking umbrella skirt (7).
3. The ice-resistant branch electrical connection for insulated carrier wires of claim 1, wherein: the insulating protective sleeve (4) comprises two protective sleeve bodies (40) which are symmetrically arranged,
one side of the protective sleeve body (40) is provided with an access groove (41), the two access grooves (41) are abutted to form an electric connection cavity, and the shape of the electric connection cavity is matched with the shape of the connection part of the electric connection wire (1) and the bare core of the insulated carrier cable (2);
a first arc groove (42) is formed in the left side of the access groove (41), and the two first arc grooves (42) are abutted to form a first wiring channel for the insulating catenary cable (2) to be accessed into the electric connection cavity from the left side;
a second arc groove (43) is formed in the right side of the access groove (41), and the two second arc grooves (43) are abutted to form a second wiring channel for accessing the insulating catenary (2) into the electric connection cavity from the right side;
the lower side of the access groove (41) is provided with a third arc groove (44), and the third arc grooves (44) are abutted to form a third wiring channel for the electric connection wire (1) to be accessed into the electric connection cavity from the lower side.
4. The ice-resistant branch electrical connection for an insulated catenary of claim 3, wherein: the inner diameters of the first wiring channel and the second wiring channel are matched with the outer diameter of an insulating layer of the insulating carrier cable (2), and the inner diameter of the third wiring channel is matched with the outer diameter of an insulating sleeve in the middle of the electric connection wire (1).
5. The ice-resistant branch electrical connection for an insulated catenary of claim 3, wherein: the two protective sleeve bodies (40) are bonded and sealed through sealant.
6. The ice-resistant branch electrical connection for insulated carrier wires of claim 1, wherein: the contact wire clamp (6) comprises two clamp bodies (61) which are arranged in a central symmetry way,
the wire clamp body (61) is provided with at least two bolt through holes, the bolt through holes on the two wire clamp bodies (61) correspond to each other and are used for applying bolt groups to enable the two wire clamp bodies (61) to be folded;
the wire clamp body (61) is provided with wire pressing grooves (62), and the two wire pressing grooves (62) can be folded to clamp the electric connecting wire (1);
the wire clamp comprises a wire clamp body (61), wherein wire clamp tooth parts (67) are arranged on the wire clamp body (61), the two wire clamp tooth parts (67) are arranged corresponding to grooves on two sides of a contact wire (3), and the two wire clamp tooth parts (67) are folded to clamp the contact wire (3).
7. The ice-resistant branch electrical connection for an insulated catenary of claim 6, wherein: correspond on the fastener body (61) line ball groove (62) are provided with fastener semicircle portion (63) and the inferior arcuation of fastener (64), fastener semicircle portion (63) cross-section is the semicircle arcuation, the inferior arcuation of fastener inferior arcuation (64) cross-section is inferior arcuation, two fastener body (61) central symmetry sets up, makes fastener semicircle portion (63) are relative the inferior arcuation of fastener (64) sets up for firm the clamp is tight when closing up electricity connecting wire (1).
8. The ice-resistant branch electrical connection for an insulated catenary of claim 2, wherein: the waterproof umbrella skirt (7) is made of insulating materials and is integrally tower-shaped.
9. The ice-resistant branch electrical connection for an insulated catenary of claim 2, wherein: the insulating sleeve in the middle of the electric connection wire (1) is made of high-pressure-resistant heat-shrinkable material.
10. The ice-resistant branch electrical connection for insulated carrier wires of claim 1, wherein: the insulating protective sleeve (4) is made of high-voltage resistant materials and can resist 27.5kV high voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121232663.8U CN215474606U (en) | 2021-06-03 | 2021-06-03 | Anti-ice branch electric connection device for insulated carrier cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121232663.8U CN215474606U (en) | 2021-06-03 | 2021-06-03 | Anti-ice branch electric connection device for insulated carrier cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215474606U true CN215474606U (en) | 2022-01-11 |
Family
ID=79782528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121232663.8U Active CN215474606U (en) | 2021-06-03 | 2021-06-03 | Anti-ice branch electric connection device for insulated carrier cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215474606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115782701A (en) * | 2022-12-19 | 2023-03-14 | 西南交通大学 | Contact net anchor section joint electric connection system |
| CN115972990A (en) * | 2023-03-21 | 2023-04-18 | 中铁建电气化局集团轨道交通器材有限公司 | Contact net electric connection device with buffer function |
-
2021
- 2021-06-03 CN CN202121232663.8U patent/CN215474606U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115782701A (en) * | 2022-12-19 | 2023-03-14 | 西南交通大学 | Contact net anchor section joint electric connection system |
| CN115972990A (en) * | 2023-03-21 | 2023-04-18 | 中铁建电气化局集团轨道交通器材有限公司 | Contact net electric connection device with buffer function |
| CN115972990B (en) * | 2023-03-21 | 2023-05-23 | 中铁建电气化局集团轨道交通器材有限公司 | Contact net electric connection device with buffer function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215474606U (en) | Anti-ice branch electric connection device for insulated carrier cable | |
| CN106205820A (en) | ± 500kV ladder-shaped conductor brass wire shielding Optical Fiber Composite direct current cables | |
| CN205070387U (en) | 320kV DC cable intermediate head | |
| CN201388026Y (en) | Bus of fully isolated and shielded metal conductive tube and bus connector | |
| CN202474799U (en) | High-voltage cable flexible joint provided with non-linear shielding layers | |
| CN208674822U (en) | A kind of casting bus protective case | |
| CN112054473A (en) | Connecting device convenient to change distribution insulated wire | |
| CN106128625A (en) | ± 500kV SZ shape molded line conductor brass wire shielding Optical Fiber Composite direct current cables | |
| CN217361335U (en) | High-voltage sealed dry-type transformer | |
| CN214314515U (en) | Inflatable wiring terminal and transformer substation | |
| CN106158129A (en) | ± 500kV ladder-shaped conductor corrugated aluminium sheath Optical Fiber Composite direct current cables | |
| CN202127229U (en) | Cable joint | |
| CN111092304B (en) | Superconducting cable terminal | |
| CN208014523U (en) | A kind of oil immersed erected current transformer multiturn electric installation and current transformer | |
| CN106856666A (en) | High voltage transmission line | |
| CN211958538U (en) | Inflatable plug-in type conductor connection terminal and transformer substation | |
| CN208608380U (en) | A kind of conductor shunt | |
| CN106128626A (en) | ± 500kV SZ shape molded line conductor corrugated aluminium sheath Optical Fiber Composite direct current cables | |
| CN219394292U (en) | High-voltage wire harness wire dividing pipe assembly | |
| CN217824162U (en) | Insulated drainage wire prepared from insulated cable and suitable for double drainage strings | |
| CN215154074U (en) | Central anchoring device for insulated carrier cable | |
| CN215579120U (en) | T-shaped three-way connector | |
| CN221262040U (en) | Integral prefabricated cold-shrink outdoor terminal | |
| CN220324156U (en) | Connecting cable of locomotive for track traffic | |
| CN221783000U (en) | Mica tape mineral insulation corrugated copper sheath cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |