CN116826476B - Insulating fastening tool for power distribution network operation - Google Patents
Insulating fastening tool for power distribution network operation Download PDFInfo
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- CN116826476B CN116826476B CN202311075069.6A CN202311075069A CN116826476B CN 116826476 B CN116826476 B CN 116826476B CN 202311075069 A CN202311075069 A CN 202311075069A CN 116826476 B CN116826476 B CN 116826476B
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- supporting
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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cable Accessories (AREA)
Abstract
The invention is applicable to the technical field of cable connection, and provides an insulating fastening tool for power distribution network operation, which comprises the following components: the device comprises a connecting piece, a wire inlet, a fixed table, a component, a conductive component and a driving component. The cable is inserted into the connecting piece through the wire inlet, then the insulating coat part of the cable is fixed in an extrusion mode through the fastening assembly, the moving direction of the cable is limited, then the cable is pulled outwards, the movement of the cable can control the driving assembly to operate, the driving assembly is utilized to control the conductive assembly to operate, the conductive assembly can tighten the conductive part of the cable, on one hand, the fixation of the conductive part of the cable is realized, on the other hand, the conductive assembly has the effect of current transmission, after the conductive part of the cable is fixed, the smooth transmission of current can be ensured, so that the connection of the cable is realized, the conductive part of the cable is not required to be touched during the connection, the conductive part of the cable can be completely covered after the connection, and the effect of omnibearing insulation is realized.
Description
Technical Field
The invention belongs to the technical field of cable connection, and particularly relates to an insulating fastening tool for power distribution network operation.
Background
The distribution network refers to a power network that receives electric energy from a power transmission network or a regional power plant, and distributes the electric energy locally or step by step according to voltage through a distribution facility. The system consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive compensators, a plurality of auxiliary facilities and the like, and plays a role in distributing electric energy in a power network.
The section of the system from the outlet of the step-down power distribution substation (high-voltage power distribution substation) to the customer premises in the power system is called a power distribution system. A power distribution system is a power network system that converts voltage and distributes power directly to end users, consisting of a variety of power distribution equipment (or elements) and power distribution facilities.
The distribution network consists of overhead lines, towers, cables, distribution transformers, switching equipment, reactive compensation capacitors and other distribution equipment and auxiliary facilities, and has the main function of distributing electric energy in the power network. From the point of view of the nature of the distribution network, the distribution network equipment also comprises the distribution devices of the substations.
At present, when cables are connected, the cables are mostly peeled manually, then conductive parts of two cables are wound together, and then an insulating sleeve is sleeved to realize cable connection.
Disclosure of Invention
The invention aims to provide an insulating fastening tool for power distribution network operation, which aims to solve the problems that at present, when cables are connected, the cables are mostly peeled manually, then conductive parts of the two cables are wound together, and then an insulating sleeve is sleeved to realize cable connection.
The invention is realized in that an insulating fastening tool for operation of a power distribution network comprises: the connecting piece, the inlet wire has all been seted up at connecting piece both ends, the insulating fastening tool of distribution network operation includes:
a fixing table arranged inside the connecting piece, wherein fastening components are arranged on the fixing table and the inner wall of the connecting piece and are used for fixing the insulating coat part of the cable in an extrusion mode;
the conductive component is arranged inside the connecting piece and is used for fastening the conductive part of the cable and transmitting the current of the cable;
the driving assembly is arranged inside the connecting piece and is used for automatically controlling the operation of the conductive assembly after the fastening assembly is used for fixing the insulating coat part of the cable in a squeezing mode, and the conductive part of the cable is connected.
As a still further aspect of the present invention, the fastening assembly includes:
the first support is arranged on the fixed table and provided with a plurality of first supports;
the telescopic column is arranged on the inner wall of the connecting piece, a second supporting table is arranged at one end of the telescopic column, a plurality of second supporting columns are arranged on the second supporting table, supporting rotating shafts are arranged on the first supporting columns and the second supporting columns in a rotating mode, and the supporting rotating shafts are used for supporting insulating coat parts of cables.
As a further scheme of the invention, the structure of the supporting rotating shaft is a conical cylinder with a thin middle and thick two ends.
As a still further aspect of the present invention, the conductive member includes:
the third supporting platform is arranged on the inner wall of the connecting piece, one end of the third supporting platform is provided with a conductive supporting platform, and the conductive supporting platform is used for supporting a conductive part of the cable;
the conductive binding belt is arranged on one side of the conductive supporting table, grooves are formed in two sides of the conductive supporting table, and two ends of the conductive binding belt respectively penetrate through the grooves in two sides of the conductive supporting table;
the toothed bar is arranged on the inner wall of the connecting piece in a sliding manner, and one end of the toothed bar is connected with the conductive strap;
and one end of the traction spring is connected with the conductive strap.
As a further aspect of the present invention, the number of the traction springs is not less than two, and the traction springs are symmetrically connected to the side of the conductive strap.
As a still further aspect of the present invention, the driving assembly includes:
the fixed block is arranged on the first supporting table, a first gear is rotatably arranged in the fixed block, and a first transmission belt is sleeved between the first gear and one of the supporting rotating shafts;
the bidirectional control assembly is arranged inside the fixed block and is used for driving the toothed bar to move downwards when the first gear rotates, and limiting the position of the toothed bar.
As a further aspect of the present invention, the bidirectional control assembly includes:
the sliding toothed plate is arranged inside the fixed block in a sliding manner, the sliding toothed plate is meshed with the first gear, a linkage rod is rotationally connected to the sliding toothed plate, a linkage column is installed at one end of the linkage rod, a control block is rotationally connected to the other end of the linkage rod, and toothed plates are arranged on two sides of the control block;
the guide groove is formed in the fixing block, and the linkage column is arranged in the guide groove;
the sliding groove is arranged in the fixed block, a sliding block is arranged in the sliding groove, a sliding rod is connected between the sliding blocks, and the control block is connected to the sliding rod in a sliding manner;
the second gear and the third gear are both rotatably arranged on the fixed block and are both matched with the toothed plate;
the fourth gear and the fifth gear are meshed with each other, are both rotatably arranged inside the connecting piece, and second transmission belts are arranged between the fourth gear and the second gear and between the fifth gear and the third gear;
tooth post, sliding set up in inside the connecting piece, the fifth gear with tooth post intermeshing, tooth post one end is provided with the latch, the latch with the rack bar is mutually supported.
The insulating fastening tool for power distribution network operation provided by the invention has the following beneficial effects:
when the insulating fastening tool for power distribution network operation is used, a cable is inserted into a connecting piece through a wire inlet, then the insulating coat part of the cable is fixed in an extrusion mode through the fastening component, the moving direction of the cable is limited, then the cable is pulled outwards, the movement of the cable can control the operation of the driving component, the operation of the conductive component is controlled by the driving component, the conductive part of the cable can be tightened through the conductive component, on one hand, the fixation of the conductive part of the cable is realized, on the other hand, the conductive component has the function of current transmission, after the conductive part of the cable is fixed, smooth current transmission can be ensured, so that the connection of the cable is realized, the conductive part of the cable is not required to be touched during the connection, the conductive part of the cable can be completely covered after the connection, and the effect of omnibearing insulation is realized.
Drawings
Fig. 1 is a schematic structural diagram of an insulating fastening tool for power distribution network operation according to an embodiment of the present invention;
fig. 2 is a partial structure diagram of an insulating fastening tool for power distribution network operation according to an embodiment of the present invention;
fig. 3 is a partial working state diagram of an insulating fastening tool for power distribution network operation according to an embodiment of the present invention;
FIG. 4 is an enlarged view of FIG. 1 at A;
FIG. 5 is an enlarged view at B in FIG. 1;
FIG. 6 is an enlarged view at C in FIG. 1;
fig. 7 is a partial perspective view of an insulating fastening tool for power distribution network operation according to an embodiment of the present invention;
fig. 8 is a structural diagram of a supporting shaft in an insulating fastening tool for power distribution network operation according to an embodiment of the present invention.
In the accompanying drawings: 1. a connecting piece; 2. a wire inlet; 3. a fixed table; 4. a fastening assembly; 41. a first support; 42. a first support column; 43. a telescopic column; 44. a second support; 45. a second support; 46. supporting a rotating shaft; 5. a conductive assembly; 51. a third support; 52. a conductive support; 53. a conductive strap; 54. slotting; 55. a toothed bar; 56. a traction spring; 6. a drive assembly; 61. a fixed block; 62. a first gear; 63. a first conveyor belt; 64. sliding toothed plates; 65. a linkage rod; 66. a linkage column; 67. a control block; 68. a toothed plate; 69. a guide groove; 610. a chute; 611. a slide block; 612. a slide bar; 613. a second gear; 614. a third gear; 615. a fourth gear; 616. a fifth gear; 617. a second conveyor belt; 618. tooth columns; 619. and (5) clamping teeth.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1, in an embodiment of the present invention, an insulating fastening tool for power distribution network operation includes: connecting piece 1, inlet wire 2 has all been seted up at connecting piece 1 both ends, the insulating fastening tool of distribution network operation includes:
a fixing table 3, which is arranged inside the connecting piece 1, wherein fastening components 4 are arranged on the fixing table 3 and the inner wall of the connecting piece 1, and the fastening components 4 are used for fixing the insulating coat part of the cable in an extrusion mode;
the conductive component 5 is arranged inside the connecting piece 1, and the conductive component 5 is used for fastening a conductive part of the cable and transmitting the current of the cable;
a driving assembly 6 is disposed inside the connecting piece 1, and the driving assembly 6 is used for automatically controlling the operation of the conductive assembly 5 after the fastening assembly 4 is used for fixing the insulating coat part of the cable in a squeezing manner, and connecting the conductive parts of the cable.
When the insulating fastening tool for power distribution network operation is used, a cable is inserted into the connecting piece 1 through the wire inlet 2, then the insulating coat part of the cable is fixed in an extrusion mode through the fastening component 4, the moving direction of the cable is limited, then the cable is pulled outwards, the movement of the cable can control the driving component 6 to operate, the driving component 6 is utilized to control the conductive component 5 to operate, the conductive component 5 can tighten the conductive part of the cable, on one hand, the fixation of the conductive part of the cable is realized, on the other hand, the conductive component 5 has the function of current transmission, after the conductive part of the cable is fixed, the smooth transmission of current can be ensured, so that the connection of the cable is realized, the conductive part of the cable is not required to be touched during the connection, the conductive part of the cable can be completely covered after the connection, and the effect of omnibearing insulation is realized.
As shown in fig. 1 to 7, in the embodiment of the present invention, the fastening assembly 4 includes:
the first supporting table 41 is arranged on the fixed table 3, and a plurality of first supporting columns 42 are arranged on the first supporting table 41;
the telescopic column 43 is arranged on the inner wall of the connecting piece 1, a second supporting table 44 is arranged at one end of the telescopic column 43, a plurality of second supporting columns 45 are arranged on the second supporting table 44, supporting rotating shafts 46 are rotatably arranged on the first supporting columns 42 and the second supporting columns 45, and the supporting rotating shafts 46 are used for supporting insulating coat parts of the cable.
In the embodiment of the present invention, the supporting shaft 46 is a conical cylinder with a thin middle and thick two ends.
In use, a cable is inserted into the connector 1 through the inlet 2 with the insulated garment portion of the cable disposed between the support shafts 46, and then the telescoping post 43 controls the upper support shaft 46 to move downwardly, with the cable being held in compression by the upper and lower support shafts 46.
As shown in fig. 1 to 7, in the embodiment of the present invention, the conductive member 5 includes:
a third supporting stand 51, which is disposed on the inner wall of the connecting piece 1, wherein one end of the third supporting stand 51 is provided with a conductive supporting stand 52, and the conductive supporting stand 52 is used for supporting the conductive part of the cable;
the conductive strap 53 is arranged at one side of the conductive support 52, grooves 54 are formed in two sides of the conductive support 52, and two ends of the conductive strap 53 respectively penetrate through the grooves 54 in two sides of the conductive support 52;
the toothed bar 55 is arranged on the inner wall of the connecting piece 1 in a sliding manner, and one end of the toothed bar 55 is connected with the conductive strap 53;
and a traction spring 56, which is installed on the inner wall of the connecting piece 1, wherein one end of the traction spring 56 is connected with the conductive strap 53.
In the embodiment of the present invention, the number of the traction springs 56 is not less than two, and is symmetrically connected to the side of the conductive strap 53.
As shown in fig. 1 to 7, in the embodiment of the present invention, the driving assembly 6 includes:
the fixed block 61 is arranged on the first supporting table 41, a first gear 62 is rotatably arranged in the fixed block 61, and a first transmission belt 63 is sleeved between the first gear 62 and one of the supporting rotating shafts 46;
and the bidirectional control component is arranged inside the fixed block 61 and is used for driving the toothed bar 55 to move downwards when the first gear 62 rotates and limiting the position of the toothed bar 55.
As shown in fig. 1 to 7, in an embodiment of the present invention, the bidirectional control assembly includes:
the sliding toothed plate 64 is slidably arranged inside the fixed block 61, the sliding toothed plate 64 is meshed with the first gear 62, a linkage rod 65 is rotatably connected to the sliding toothed plate 64, a linkage column 66 is mounted at one end of the linkage rod 65, a control block 67 is rotatably connected to the other end of the linkage rod 65, and toothed plates 68 are arranged on two sides of the control block 67;
the guide groove 69 is formed in the fixed block 61, and the linkage column 66 is arranged in the guide groove 69;
the sliding groove 610 is arranged in the fixed block 61, a sliding block 611 is arranged in the sliding groove 610, a sliding rod 612 is connected between the sliding blocks 611, and the control block 67 is slidably connected to the sliding rod 612;
a second gear 613 and a third gear 614 are rotatably disposed on the fixed block 61, and the second gear 613 and the third gear 614 are mutually matched with the toothed plate 68;
a fourth gear 615 and a fifth gear 616, wherein the fourth gear 615 is meshed with the toothed bar 55, and is rotatably disposed inside the connecting member 1, and a second transmission belt 617 is disposed between the fourth gear 615 and the second gear 613, and between the fifth gear 616 and the third gear 614;
the tooth post 618 is slidably disposed inside the connecting piece 1, the fifth gear 616 is meshed with the tooth post 618, a latch 619 is disposed at one end of the tooth post 618, and the latch 619 is matched with the toothed bar 55.
When the cable is pulled outwards, the supporting rotating shaft 46 is driven to rotate by the movement of the cable, the first gear 62 is driven to rotate by the first transmission belt 63, the sliding toothed plate 64 is controlled to move by the meshing relationship between the sliding toothed plate 64, the moving sliding toothed plate 64 drives the linkage rod 65 to move, the control block 67 firstly moves horizontally under the matching relationship between the guide groove 69 and the linkage post 66, the second gear 613 is controlled to rotate by the toothed plate 68, the fourth gear 615 is driven to rotate by the second transmission belt 617, the toothed rod 55 is driven to move downwards by the meshing relationship between the fourth gear 615 and the toothed rod 55, the conductive belt 53 is pulled to move downwards, the conductive part of the cable is fastened by tightening the conductive belt 53, and the traction spring 56 is stretched, so that the cable connection stability can be ensured, and continuous current transmission can be realized;
then under the guiding action of the guiding groove 69, the linkage post 66 drives the linkage rod 65 to rotate, so as to drive the control block 67 to move, so that the control block 67 is meshed with the third gear 614, and the second transmission belt 617 drives the fifth gear 616 to rotate, the fifth gear 616 drives the tooth post 618 to move through the meshing relationship, so that the latch 619 contacts with the toothed bar 55, and the position of the toothed bar 55 is limited by the clamping relationship between the latch 619 and the tooth part of the toothed bar 55, so as to ensure the stability of cable connection.
In sum, when this insulating fastening tool of distribution network operation is used, insert the cable in connecting piece 1 through inlet 2, the insulating coat part of cable is fixed to fastening component 4 afterwards, restrict the direction of movement of cable, then outwards pull the cable, then the removal of cable can control drive assembly 6 operation, and utilize drive assembly 6 to control conductive component 5 operation, conductive component 5 can tighten up the conductive part of cable, the fixed of cable conductive part has been realized on the one hand, on the other hand conductive component 5 itself has the effect of electric current transmission, after fixing the conductive part of cable, can guarantee the smooth transmission of electric current, so realize the connection of cable, and this connected mode need not to touch the conductive part of cable when connecting, and can cover the conductive part of cable completely after connecting, realize the effect of all-round insulation.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. An insulated fastening tool for power distribution network operation, comprising: connecting piece (1), inlet wire (2) have all been seted up at connecting piece (1) both ends, its characterized in that, distribution network operation insulating fastening tool includes:
the fixing table (3) is arranged inside the connecting piece (1), fastening components (4) are arranged on the fixing table (3) and the inner wall of the connecting piece (1), and the fastening components (4) are used for fixing the insulating coat part of the cable in an extrusion mode;
the conductive component (5) is arranged inside the connecting piece (1), and the conductive component (5) is used for fastening the conductive part of the cable and transmitting the current of the cable;
a driving component (6) arranged inside the connecting piece (1), wherein the driving component (6) is used for automatically controlling the operation of the conductive component (5) after the fastening component (4) is used for fixing the insulated coat part of the cable in a squeezing way and connecting the conductive part of the cable;
the fastening assembly (4) comprises:
the first support (41) is arranged on the fixed table (3), and a plurality of first supports (42) are arranged on the first support (41);
the telescopic column (43) is arranged on the inner wall of the connecting piece (1), one end of the telescopic column (43) is provided with a second supporting table (44), the second supporting table (44) is provided with a plurality of second supporting columns (45), the first supporting columns (42) and the second supporting columns (45) are respectively provided with a supporting rotating shaft (46) in a rotating mode, and the supporting rotating shafts (46) are used for supporting insulated coat parts of the cable;
the conductive assembly (5) comprises:
the third supporting table (51) is arranged on the inner wall of the connecting piece (1), one end of the third supporting table (51) is provided with a conductive supporting table (52), and the conductive supporting table (52) is used for supporting a conductive part of the cable;
the conductive belts (53) are arranged on one side of the conductive support table (52), grooves (54) are formed in two sides of the conductive support table (52), and two ends of each conductive belt (53) respectively penetrate through the grooves (54) in two sides of the conductive support table (52);
the toothed bar (55) is arranged on the inner wall of the connecting piece (1) in a sliding manner, and one end of the toothed bar (55) is connected with the conductive strap (53);
a traction spring (56) which is arranged on the inner wall of the connecting piece (1), wherein one end of the traction spring (56) is connected with the conductive strap (53);
the drive assembly (6) comprises:
the fixed block (61) is arranged on the first supporting table (41), a first gear (62) is rotatably arranged in the fixed block (61), and a first transmission belt (63) is sleeved between the first gear (62) and one of the supporting rotating shafts (46);
and the bidirectional control component is arranged inside the fixed block (61) and is used for driving the toothed bar (55) to move downwards when the first gear (62) rotates and limiting the position of the toothed bar (55).
2. The power distribution network operation insulation fastening tool according to claim 1, wherein the structure of the supporting rotating shaft (46) is a conical cylinder with a thin middle and thick two ends.
3. The power distribution network operation insulation fastening tool according to claim 1, wherein the number of the traction springs (56) is not less than two, and is symmetrically connected to the side of the conductive strap (53).
4. The power distribution network operation insulation fastening tool according to claim 1, wherein the bidirectional control assembly comprises:
the sliding toothed plate (64) is arranged inside the fixed block (61) in a sliding manner, the sliding toothed plate (64) is meshed with the first gear (62) mutually, a linkage rod (65) is rotationally connected to the sliding toothed plate (64), a linkage column (66) is arranged at one end of the linkage rod (65), a control block (67) is rotationally connected to the other end of the linkage rod (65), and toothed plates (68) are arranged on two sides of the control block (67);
the guide groove (69) is formed in the fixed block (61), and the linkage column (66) is arranged in the guide groove (69);
the sliding groove (610) is formed in the fixed block (61), a sliding block (611) is arranged in the sliding groove (610), a sliding rod (612) is connected between the sliding blocks (611), and the control block (67) is connected to the sliding rod (612) in a sliding manner;
the second gear (613) and the third gear (614) are both rotatably arranged on the fixed block (61), and the second gear (613) and the third gear (614) are both mutually matched with the toothed plate (68);
the fourth gear (615) and the fifth gear (616) are meshed with each other, the fourth gear (615) and the toothed bar (55) are all rotatably arranged inside the connecting piece (1), and a second transmission belt (617) is arranged between the fourth gear (615) and the second gear (613) and between the fifth gear (616) and the third gear (614);
tooth post (618), slide set up in inside connecting piece (1), fifth gear (616) with tooth post (618) intermeshing, tooth post (618) one end is provided with latch (619), latch (619) with rack bar (55) mutually support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311075069.6A CN116826476B (en) | 2023-08-25 | 2023-08-25 | Insulating fastening tool for power distribution network operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311075069.6A CN116826476B (en) | 2023-08-25 | 2023-08-25 | Insulating fastening tool for power distribution network operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116826476A CN116826476A (en) | 2023-09-29 |
| CN116826476B true CN116826476B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311075069.6A Active CN116826476B (en) | 2023-08-25 | 2023-08-25 | Insulating fastening tool for power distribution network operation |
Country Status (1)
| Country | Link |
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| CN (1) | CN116826476B (en) |
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| CN113067279A (en) * | 2021-04-28 | 2021-07-02 | 浙江清大智能机器人有限公司 | Distribution network live-line full-flow operation robot |
| CN215497483U (en) * | 2021-08-26 | 2022-01-11 | 深圳市国润机电设备有限公司 | Wiring ware is used in distribution installation |
| CN116315964A (en) * | 2023-03-02 | 2023-06-23 | 华能金昌光伏发电有限公司 | Outdoor cable wiring device for electrical engineering and wiring method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855585A (en) * | 2012-12-05 | 2014-06-11 | 苏州工业园区高登威科技有限公司 | Cable butt joint device |
| JP2021082579A (en) * | 2019-11-14 | 2021-05-27 | 石雅娟 | Fixing and connecting device for power electronic lead and terminal and operation method |
| CN111817112A (en) * | 2020-07-28 | 2020-10-23 | 广东岭南设计院有限公司 | Automatic power cable wiring device |
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| CN113067279A (en) * | 2021-04-28 | 2021-07-02 | 浙江清大智能机器人有限公司 | Distribution network live-line full-flow operation robot |
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| CN116315964A (en) * | 2023-03-02 | 2023-06-23 | 华能金昌光伏发电有限公司 | Outdoor cable wiring device for electrical engineering and wiring method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116826476A (en) | 2023-09-29 |
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