A special wiring structure of cable branch
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 国电博纳(北京)电力设备有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-07
Smart Images
Figure CN224473041U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high-voltage cable terminal technology, specifically, it relates to a special wiring structure for cable branches. Background Technology
[0002] High-voltage cables play a vital role in power transmission. With urbanization and industrialization, the demand for electricity is constantly increasing, leading to new requirements for the wiring methods of high-voltage cables in power systems. There is a need for a single high-voltage line to branch into two, meaning one cable can simultaneously supply power to two areas. Currently, implementing cable branching typically requires specialized branch connectors for different cable heads. While this achieves cable branching, the branch connectors are not completely sealed, making them susceptible to harsh environments and thus affecting power supply.
[0003] Therefore, this application proposes a special wiring structure for cable branches that can effectively protect the wiring points of cable branches. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a special wiring structure for cable branching, including: a cable tank, a first connecting conductor and a second connecting conductor;
[0005] Both the first connecting conductor and the second connecting conductor are located inside the cavity of the cable tank, and the first connecting conductor and the second connecting conductor are connected. The cavity of the cable tank is filled with insulating gas.
[0006] The bottom of the cable tank is provided with a guide hole; the inlet cable, the first branch cable and the second branch cable are suitable for passing through the guide hole and entering the cavity of the cable tank. The cable head of the inlet cable and the cable head of the first branch cable are electrically connected to the first connecting conductor; the cable head of the second branch cable is electrically connected to the first connecting conductor through the second connecting conductor.
[0007] In one possible implementation, a mating conductor is also included, with the cable head of the incoming cable, the cable head of the first branch cable, and the cable head of the second branch cable all connected to the mating conductor.
[0008] The incoming cable is electrically connected to one end of the first connecting conductor via a butt conductor; the first branch cable is electrically connected to the other end of the first connecting conductor via a butt conductor; and the second branch cable is electrically connected to one end of the second connecting conductor via a butt conductor.
[0009] In one possible implementation, the main body of the docking conductor is circular, and a predetermined number of bolt holes are provided along the edge of the docking conductor in sequence, so as to connect the incoming cable, the first branch cable and the second branch cable to the docking conductor respectively through the bolt holes;
[0010] A threaded hole is provided at the center of the mating conductor, which is suitable for connection with the first connecting conductor and the second connecting conductor.
[0011] In one possible implementation, the main bodies of both the first and second connecting conductors are elongated strips, and their cross-sections are both "inverted convex" structures.
[0012] A through groove is provided on the side of the first connecting conductor away from the protrusion. The through groove is adapted to the second connecting conductor, and one end of the second connecting conductor is suitable for being embedded in the through groove.
[0013] In one possible implementation, a cable support is also included; the cable canister is positioned on top of the cable support.
[0014] The cable support has a cavity inside that allows the incoming cable, the first branch cable, and the second branch cable to pass through.
[0015] In one possible implementation, the cable tank has a first through hole and a second through hole, which are located on adjacent sides of the cable tank, with the first through hole and the guide hole being opposite each other.
[0016] In one possible implementation, the cable tank also includes a first flange and a second flange; the first flange is fixed to the window of the first through hole, and the second flange is fixed to the window of the second through hole.
[0017] In one possible implementation, the cable tank also includes a first cover plate and a second cover plate, the first cover plate being connected to a first flange and the second cover plate being connected to a second flange.
[0018] In one possible implementation, double sealing rings are provided between the first flange and the first cover plate, and between the second flange and the second cover plate;
[0019] Double sealing grooves are provided on the flange faces of both the first and second flanges.
[0020] In one possible implementation, the cable tank is also provided with a gas inlet, which is suitable for injecting insulating gas into the cable tank through the gas inlet;
[0021] The gas inlet and the second through hole are located on adjacent sides of the cable tank; the gas inlet and the first through hole are located adjacent to each other on the side wall of the cable tank.
[0022] Beneficial effects: This application incorporates a cable canister when implementing cable branch connections. The cable branch connection structure is housed within the sealed cable canister, preventing it from contacting the external environment and thus protecting it from environmental influences. This makes it suitable for various environments, including harsh ones, effectively protecting the cable branch connection area. Furthermore, the cable canister is filled with insulating gas, further enhancing the insulation performance of the cable branch connection.
[0023] Furthermore, this application connects the incoming cable and the first branch cable via a first connecting conductor and connects the second branch cable to the first connecting conductor via a second connecting conductor. This allows the incoming cable to be connected to both the first and second branch cables simultaneously. This eliminates the need for the conventional method of using branch connectors, which requires damaging the cable insulation before using branch connectors to achieve cable branching.
[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0025] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0026] Figure 1 This is a cross-sectional view of a special cable branch wiring structure according to an embodiment of the present invention;
[0027] Figure 2 This is a cross-sectional view (AA) of a special wiring structure for a cable branch according to an embodiment of the present invention.
[0028] Figure 3 This is a top view of a docking conductor according to an embodiment of the present invention;
[0029] Figure 4 This is a cross-sectional view of a docking conductor according to an embodiment of the present invention;
[0030] Figure 5 This is a top view of the first connecting conductor according to an embodiment of the present invention;
[0031] Figure 6 This is a cross-sectional view of the first connecting conductor according to an embodiment of the present invention;
[0032] Figure 7 This is a top view of the second connecting conductor according to an embodiment of the present invention;
[0033] Figure 8 This is a cross-sectional view of the second connecting conductor according to an embodiment of the present invention;
[0034] Figure 9 This is a schematic diagram of the connection between the cable and the cable tank according to an embodiment of the present invention;
[0035] Figure 10 This is a cross-sectional view of the connection between the cable and the cable tank according to an embodiment of the present invention;
[0036] Figure 11 This is a cross-sectional view of a special cable branch wiring structure according to another embodiment of the present invention;
[0037] The attached diagram lists the components represented by each number as follows:
[0038] Cable canister 100, guide hole 110, third fixing hole 111, first through hole 120, second through hole 130, first flange 140, second flange 150, first cover plate 160, explosion-proof equipment 161, second cover plate 170, absorbent 171, mounting plate 180, second fixing hole 181, gauge valve 190, inlet cable 200, first branch cable 300, second branch cable 400, first connecting conductor 500, second mounting hole 510, through groove 520, second threaded hole 530, second connecting conductor 600, third mounting hole 610, butt conductor 700, bolt hole 710, first threaded hole 720, cable bracket 800, channel steel 810, fastener 820.
[0039] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0040] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0041] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application or to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0043] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0044] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0045] Figure 1 This paper shows a cross-sectional view of a special wiring structure for cable branching according to the present application. Figure 2 This application shows a cross-sectional view (AA) of a special wiring structure for a cable branch, according to... Figures 1 to 2 As shown, the special cable branch structure of this application includes a cable canister 100, a first connecting conductor 500, and a second connecting conductor 600. Both the first connecting conductor 500 and the second connecting conductor 600 are disposed inside the cavity of the cable canister 100, and are connected. An insulating gas is provided inside the cavity of the cable canister 100. A guide hole 110 is provided at the bottom of the cable canister 100, through which the incoming cable 200, the first branch cable 300, and the second branch cable 400 are adapted to pass and enter the cavity of the cable canister 100. The cable head of the incoming cable 200 and the cable head of the first branch cable 300 are electrically connected to the first connecting conductor 500. The cable head of the second branch cable 400 is electrically connected to the first connecting conductor 500 via the second connecting conductor 600.
[0046] It should be noted that the insulating gas inside the cable tank 100 is sulfur hexafluoride gas, which can prevent external electric fields from affecting the electric field distribution inside the cable tank 100 and improve the insulation performance of the cable tank 100.
[0047] This application implements cable branching by providing a cable tank 100. The cable branching structure is housed within the cable tank 100, which is sealed. This prevents the cable branching from contacting the external environment and thus is unaffected by environmental conditions, making it suitable for various environments, including harsh ones, and effectively protecting the cable branching points. Furthermore, the cable tank 100 is filled with insulating gas, improving the insulation performance of the cable branching. In implementing cable branching, the application connects the incoming cable 200 and the first branch cable 300 via a first connecting conductor 500, and the second branch cable 400 is connected to the first connecting conductor 500 via a second connecting conductor 600. This allows the incoming cable 300 to be simultaneously connected to both the first and second branch cables. This eliminates the need for conventional branch connectors, which require damaging the cable insulation before using branch connectors for cable branching.
[0048] It should be noted that the cable branch wiring structure of this application can also be applied when there is a need for branch wiring. In the early stage, the second branch cable 400 can be reserved as a branch wiring form (that is, the second branch cable 400 is not connected). When branch wiring is required later, the second branch cable 400 is inserted into the cavity of the cable canister 100 through the guide hole. At the same time, the second connecting conductor 600 is added to connect the second branch cable 400 to the first connecting conductor 500. At this time, the incoming cable 200 is connected to both the first branch cable 300 and the second branch cable 400, which can realize the branch wiring of the cable. The operation is simple and convenient.
[0049] In one embodiment of this application, see [reference needed]. Figures 1 to 2 As shown, the cable branch connection includes two branch cables, and the incoming cable 200 is simultaneously connected to both branch cables for electrical conduction. That is, the incoming cable 200 is electrically connected to the first branch cable 300 through the first connecting conductor 500, and the second branch cable 400 is connected to the first connecting conductor 500 through the second connecting conductor 600, so that the incoming cable 200 simultaneously connects to both the first branch cable 300 and the second branch cable 400 for electrical conduction.
[0050] In one possible implementation, see [link to relevant documentation] Figure 2As shown, the special wiring structure for cable branches in this application also includes a butt conductor 700, which is suitable for conducting electricity with the connecting conductor. The cable heads of the incoming cable 200, the first branch cable 300, and the second branch cable 400 are all connected to the butt conductor 700. That is, the incoming cable 200 is electrically connected to one end of the first connecting conductor 500 through the butt conductor 700; the first branch cable 300 is electrically connected to the other end of the first connecting conductor 500 through the butt conductor 700; and the second branch cable 400 is electrically connected to the second connecting conductor 600 through the butt conductor 700. It should also be noted that the butt conductor 700, in addition to conducting electricity, is also suitable for shielding.
[0051] In one possible implementation, see [link to relevant documentation] Figures 3 to 4 As shown, the main body of the mating conductor 700 is circular, and a predetermined number of bolt holes 710 are sequentially provided along the edge of the mating conductor 700. These bolt holes 710 are used to connect the incoming cable 200, the first branch cable 300, and the second branch cable 400 to the mating conductor 700, respectively. It should be noted that the cable ends of the incoming cable 200, the first branch cable 300, and the second branch cable 400 are all provided with first mounting holes corresponding to the bolt holes 710 of the mating conductor 700. Bolts connect the mating conductor 700 to the incoming cable 200, the first branch cable 300, and the second branch cable 400, respectively, through the bolt holes 710 and the first mounting holes. It should be pointed out that the position of the bolt holes 710 can be adjusted to accommodate cables of different specifications. Simultaneously, the mating conductor 700 is silver-plated on both its top and bottom surfaces to reduce mating resistance and enhance its conductivity.
[0052] It should also be noted that a first threaded hole 720 is provided at the center of the mating conductor 700, which is suitable for connecting the first connecting conductor 500 and the second connecting conductor 600. In one possible implementation, the top of the mating conductor 700 is rounded.
[0053] In one possible implementation, three docking conductors 700 are provided, and all three docking conductors 700 are made of aluminum alloy.
[0054] In one possible implementation, see [link to relevant documentation] Figures 5 to 6As shown, the main body of the first connecting conductor 500 is elongated and has an inverted convex cross-section. Second mounting holes 510 are provided at recessed positions on both sides of the first connecting conductor 500. Bolts connect the first connecting conductor 500 to the mating conductor 700 through the second mounting holes 510 and the first threaded hole 720. Specifically, the second mounting hole 510 on one side of the first connecting conductor 500 is aligned with the first threaded hole 720 of the mating conductor 700 to which the incoming cable 200 is connected. Bolts are then used to connect the first conductor to the mating conductor 700 of the incoming cable 200, thus electrically connecting the incoming cable 200 to the first conductor. Simultaneously, the first branch cable 300 is electrically connected to the other side of the first connecting conductor 500 using the same connection method.
[0055] When the incoming cable 200 conducts electricity with the first branch cable 300, the incoming cable 200 conducts electricity through the bolt provided in the bolt hole 710 of the mating conductor 700, so that the incoming cable 200 can conduct electricity from the first branch cable 300 through the first connecting conductor 500 connected to the mating conductor 700, thereby realizing the conduction between the incoming cable 200 and the first branch cable 300.
[0056] In one possible implementation, a through groove 520 is formed on the side of the first connecting conductor 500 opposite to the protrusion. The through groove 520 is adapted to fit into the second connecting conductor 600, and one end of the second connecting conductor 600 is adapted to be embedded in the through groove 520. A second threaded hole 530 is formed on the bottom of the through groove 520 for bolting connection with the second connecting conductor 600.
[0057] In one possible implementation, see [link to relevant documentation] Figures 7 to 8 As shown, the main body of the second connecting conductor 600 is also elongated, and its cross-section has an inverted convex structure. Third mounting holes 610 are provided on both sides of the second connecting conductor 600 at recessed positions. One third mounting hole 610 is used to connect the second connecting conductor 600 to the second branch cable 400, and the other third mounting hole 610 is used to bolt the second connecting conductor 600 to the first connecting conductor 500. Specifically, one side of the recessed position of the second connecting conductor 600 is inserted into the through groove 520 opened in the first connecting conductor 500, and the bolt connects the first connecting conductor 500 and the second connecting conductor 600 through the third mounting hole 610 and the second threaded hole 530. It should be noted that at this time, the incoming cable 200 is simultaneously connected to the first branch cable 300 and the second branch cable 400 through the first connecting conductor 500 and the second connecting conductor 600, that is, the incoming cable 200 can simultaneously supply power to the first branch cable 300 and the second branch cable 400, thereby realizing the branch connection of the cable. It should be noted that the length direction of the first connecting conductor 500 is perpendicular to the length direction of the second connecting conductor 600.
[0058] In one possible implementation, both the first connecting conductor 500 and the second connecting conductor 600 are made of aluminum alloy, and their mating surfaces are silver-plated to reduce resistance and enhance conductivity. Additionally, both ends of the first connecting conductor 500 and the second connecting conductor 600 are rounded.
[0059] In one possible implementation, the special cable branch wiring structure of this application further includes a cable bracket 800. The cable bracket 800 has a cuboid frame structure, and one side of the cable bracket 800 is connected to the bottom of the cable tank 100. The cable bracket 800 is also provided with a fixing member 820. The fixing member 820 is elongated and is located at the corner of the side where the cable bracket 800 connects to the cable tank 100, and is fixedly connected to the cable bracket 800 to form a stable triangular structure, thereby improving the stability of the cable bracket 800. It should also be noted that a first fixing hole for fixing the cable tank 100 is provided on the fixing member 820. In one possible implementation, the fixing member 820 can use a diagonal rib.
[0060] In one possible implementation, four fasteners 820 are provided, respectively located at the four corners of the top of the cable bracket 800.
[0061] See Figure 9 and Figure 10 As shown, the cable bracket 800 is topped with a mounting plate 180, which supports the cable canister 100. The cable canister 100 and the mounting plate 180 are integrally formed, with the mounting plate 180 serving as the bottom of the cable canister 100. Second fixing holes 181 are provided at each of the four corners of the mounting plate 180. The cable canister 100 is fixed to the cable bracket 800 through the second fixing holes 181 of the mounting plate 180 and the first fixing holes of the fastener 820, thus supporting the cable canister 100. It should be noted that the mounting plate 180 has three guide holes 110 for inserting cables into the cable canister 100, respectively for inserting the incoming cable 200, the first branch cable 300, and the second branch cable 400 into the cavity of the cable canister 100. Meanwhile, a third fixing hole 111 is provided on the window of each of the three guide holes 110, and the third fixing hole 111 corresponds one-to-one with the fixing hole of the fixing flange of the incoming cable 200, the first branch cable 300 and the second branch cable 400, so as to fix the incoming cable 200, the first branch cable 300 and the second branch cable 400 through the third fixing hole.
[0062] Furthermore, due to the large diameter of the cable, it is difficult to bend. It is not easy to directly insert the cable into the cavity of the cable canister 100 through the guide hole 110. Therefore, this application provides a cable support 800, which has a height to support the cable canister 100, creating a distance between the cable canister 100 and the ground. This makes it easier to insert the cable into the lightweight interior of the cable canister 100 from the bottom.
[0063] It should also be noted that a channel steel 810 is provided on the side of the cable bracket 800 facing away from the cable tank 100, which is suitable for fixing the cable bracket 800. In one possible implementation, the channel steel 810 is welded to a pre-set foundation embedded part at the installation location, thereby fixing the cable bracket 800 at the installation location.
[0064] In one possible implementation, the cable bracket 800 is fixed by the channel steel 810, and the incoming cable 200, the first branch cable 300 and the second branch cable 400 all pass through the cavity of the cable bracket 800 and are inserted into the cavity of the cable can 100 through the guide hole 110, thereby branching and wiring inside the cavity of the cable can 100.
[0065] In one possible implementation, the cable tank 100 also has a first through hole 120 and a second through hole 130, which are located on adjacent sides of the cable tank 100, with the first through hole 120 opposite to the guide hole 110. The first through hole 120 is suitable for installing other equipment required by the cable tank 100, while the second through hole 130 is suitable for inspection and maintenance.
[0066] In one possible implementation, the cable tank 100 also includes a first flange 140 and a second flange 150, the first flange 140 being fixed to the window of the first through hole 120 and the second flange 150 being fixed to the window of the second through hole 130.
[0067] In one possible implementation, the cable tank 100 further includes a first cover plate 160 and a second cover plate 170. The first cover plate 160 is connected to a first flange 140 and is adapted to close the first through hole 120; the second cover plate 170 is connected to a second flange 150 and is adapted to close the second through hole 130. The first cover plate 160 and the first flange 140, and the second cover plate 170 and the second flange 150, are all bolted together. Further, the first cover plate 160 is also provided with an explosion-proof device 161, which is installed on the side of the first cover plate 160 facing away from the cable tank 100. The second cover plate 170 is provided with an adsorbent 171, which is located on the side of the second cover plate 170 facing the cable tank 100. The adsorbent 171 is bolted to the second cover plate 170 via an adsorbent cover; specifically, the adsorbent cover is bolted to the cover plate, and the adsorbent is placed inside the adsorbent cover.
[0068] In one possible implementation, double sealing rings are provided between the first flange 140 and the first cover plate 160, and between the second flange 150 and the second cover plate 170, with the double sealing rings concentrically arranged. The outer sealing ring is a waterproof ring, suitable for preventing moisture from entering the cavity of the cable tank 100, while the inner sealing ring is a gas chamber sealing ring, suitable for preventing gas leakage from inside the cable tank 100. In another possible implementation, double sealing grooves are provided on the flange faces of both the first flange 140 and the second flange 150, with the double sealing grooves concentrically arranged, and the double sealing rings placed within the double sealing grooves to improve the sealing performance of the cable tank 100.
[0069] In one possible implementation, the cable tank 100 also has a gas inlet, which connects to an external gas pipeline to supply insulating gas. A gauge valve 190 connects the gas inlet to the external gas pipeline. The gauge valve 190 is used for replenishing and recovering the insulating gas inside the cavity of the cable tank 100. The gas inlet and the second through-hole 130 are located on adjacent sides of the cable tank 100, and the gas inlet and the first through-hole 120 are located adjacent to each other on the side wall of the cable tank 100. Preferably, the gauge valve 190 is a shock-resistant density gauge and a miniaturized combination valve.
[0070] In one possible implementation, the cable tank 100 is made of aluminum alloy.
[0071] Figure 11 A cable branch wiring diagram according to another embodiment of this application is shown. See also Figure 11As shown, when there is a need for cable branching, the second branch cable 400 is left unconnected, and the incoming cable 200 is connected to the first branch cable 300 through the first connecting conductor 500 for electrical conduction. When additional branch cables are needed for later expansion, the second branch cable 400 is inserted into the cavity of the cable canister 100 through the connecting hole 110. Simultaneously, a second connecting conductor 600 is added to electrically connect the second branch cable 400 to the first connecting conductor 500. At this time, the incoming cable 200 connects both the first branch cable 300 and the second branch cable 400, allowing simultaneous power supply to both, thus increasing the cable branching to meet the requirement of converting one cable into two branches.
[0072] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A special wiring structure for cable branches, characterized in that, include: Cable tank, first connecting conductor and second connecting conductor; Both the first connecting conductor and the second connecting conductor are disposed inside the cavity of the cable tank, and the first connecting conductor and the second connecting conductor are connected; the cavity of the cable tank is provided with insulating gas; The bottom of the cable tank is provided with a guide hole; the incoming cable, the first branch cable and the second branch cable are adapted to pass through the guide hole and enter the cavity of the cable tank. The cable head of the incoming cable and the cable head of the first branch cable are electrically connected to the first connecting conductor; the cable head of the second branch cable is electrically connected to the first connecting conductor through the second connecting conductor.
2. The special wiring structure for cable branches according to claim 1, characterized in that, It also includes a mating conductor, to which the cable head of the incoming cable, the cable head of the first branch cable, and the cable head of the second branch cable are all connected; The incoming cable is electrically connected to one end of the first connecting conductor via the mating conductor; the first branch cable is electrically connected to the other end of the first connecting conductor via the mating conductor; and the second branch cable is electrically connected to one end of the second connecting conductor via the mating conductor.
3. The special wiring structure for cable branches according to claim 2, characterized in that, The main body of the docking conductor is circular, and a predetermined number of bolt holes are provided along the edge of the docking conductor to connect the incoming cable, the first branch cable and the second branch cable to the docking conductor respectively by bolts; The center of the mating conductor is provided with a threaded hole, which is suitable for connecting with the first connecting conductor and the second connecting conductor.
4. The special wiring structure for cable branches according to claim 1, characterized in that, Both the first connecting conductor and the second connecting conductor are long strips in shape, and their cross-sections are "inverted convex" structures. A through groove is provided on the side of the first connecting conductor away from the protrusion. The through groove is adapted to the second connecting conductor, and one end of the second connecting conductor is adapted to be embedded in the through groove.
5. A special wiring structure for cable branches according to claim 1, characterized in that, It also includes cable supports; The cable canister is located on top of the cable support; the cable support has a cavity inside for the incoming cable, the first branch cable, and the second branch cable to pass through.
6. A special wiring structure for cable branches according to claim 1, characterized in that, The cable canister has a first through hole and a second through hole, which are located on adjacent sides of the cable canister, with the first through hole being opposite to the guide hole.
7. A special wiring structure for cable branches according to claim 6, characterized in that, The cable tank also includes a first flange and a second flange; the first flange is fixed to the window of the first through hole, and the second flange is fixed to the window of the second through hole.
8. A special wiring structure for cable branches according to claim 7, characterized in that, The cable tank also includes a first cover plate and a second cover plate, wherein the first cover plate is connected to the first flange and the second cover plate is connected to the second flange.
9. A special wiring structure for cable branches according to claim 8, characterized in that, Double sealing rings are provided between the first flange and the first cover plate, and between the second flange and the second cover plate; Double sealing grooves are provided on the flange faces of both the first flange and the second flange.
10. A special wiring structure for cable branches according to claim 6, characterized in that, The cable tank is also provided with a gas inlet, which is suitable for injecting insulating gas into the cable tank through the gas inlet; The air inlet and the second through hole are located on adjacent sides of the cable tank; the air inlet and the first through hole are located adjacent to each other on the side wall of the cable tank.