Combined insulating partition plate for low-voltage non-power-cut operation of distribution network and use method of combined insulating partition plate

Abstract

The invention discloses a combined insulating partition plate for low-voltage non-power-cut operation of a distribution network and a use method of the combined insulating partition plate. The combined insulating partition plate comprises a low-voltage drainage wire fixing part, an insulating partition plate body, a low-voltage main wire clamping groove, a fixing plate and an insulating telescopic rod. Every two adjacent insulating partition plates are fixedly connected through two insulating telescopic rods, three insulating partition plates are combined into a main body structure through four insulating telescopic rods and a plurality of fixing plates, and the three-connected-connected layout is formed. The low-voltage main wire clamping groove is used for fixing an overhead wire, and the low-voltage drainage wire fixing piece is used for positioning and fixing a drainage wire. Through the design of the U-shaped wire clamping groove and the telescopic rod, a flexible installation mode is provided, it is ensured that equipment can be rapidly and stably installed in the operation of a 0.4 kV overhead conductor, the stability of the conductor is kept, the equipment is safe, reliable and convenient to operate after an insulation resistance test and a voltage withstand test, and the safety and efficiency during operation without power outage are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of overhead power distribution line construction operations, and in particular relates to a combined insulating partition for low-voltage non-stop power distribution network operations and a use method thereof. Background Art

[0002] With the rapid progress of the power industry, the insulation performance of overhead distribution lines and their safety protection measures have become the core elements to ensure the stable operation of the power grid and the safety of users' electricity use. In particular, the insulation performance of 0.4kV distribution lines, as the key link connecting user terminals, directly affects the overall safety and reliability of the power system. However, there are many limitations in the protection methods of traditional overhead distribution lines, such as limited protection effect, complex installation process, and difficult maintenance work. These methods are difficult to meet the growing demand for power safety.

[0003] Overhead distribution lines are exposed to the external environment and are susceptible to natural factors such as wind, rain, lightning strikes, and tree interference. In addition, problems such as aging of line insulation materials and mechanical wear may also lead to insulation failure, resulting in electrical failures and even safety accidents. Traditional overhead line protection methods mainly include: Insulation jackets add insulation jackets to the conductors, which can prevent the lines from direct contact with the outside world to a certain extent. However, the insulation jackets are prone to aging and cracking under long-term exposure to bad weather and ultraviolet rays, and lose their original protective function. Line isolation protection: Insulation partitions, disconnectors and other devices are used to maintain a safe distance between lines to prevent phase-to-phase short circuits or contact with the ground. However, these isolation measures have limited effects when facing interference such as wind-blown branches or small animals, and cannot completely avoid accidental electric shock accidents. Lightning protection device: Lightning arresters are installed on overhead lines to reduce the direct impact of lightning strikes on the lines. However, this measure is mainly aimed at sudden events such as lightning strikes, and has a weak protective effect on daily insulation damage of the lines, and requires frequent replacement and maintenance in high lightning strike areas.

[0004] Traditional protection methods have the following shortcomings during installation and maintenance: Complex installation: For example, installing an insulating jacket or isolation device requires high-altitude work on the line, which is a complex and time-consuming process. For large-scale line reconstruction or new construction projects, a lot of manpower and time are required. Difficult maintenance: Overhead lines are outdoors and are greatly affected by the environment, so regular inspections and maintenance are essential. Due to the limitations of traditional protection methods, the maintenance workload is large, and maintenance personnel need to regularly check the line status and replace aging insulating jackets or repair damaged isolation devices in a timely manner. High cost: The continuous maintenance and replacement costs are high, plus labor costs, and the overall operating costs cannot be ignored. Especially in remote areas or areas with complex terrain, the work risks of maintenance personnel increase, further increasing the operation and maintenance costs.

[0005] With the increase in electricity demand and the improvement in users' requirements for power supply quality, the operational stability of the power system faces higher challenges. The insulation protection measures of traditional overhead distribution lines are difficult to meet the following needs: Improve power supply reliability: Users' tolerance for power outages is gradually decreasing, and they hope that the power supply will be more stable. The limitations of traditional protection methods have increased the probability of unexpected power outages, affecting user experience. Safety operation requirements: With the improvement of power operation standards, power workers need to perform line maintenance while ensuring their own safety. Traditional isolation devices do not always provide sufficient safety protection in actual operation, increasing operational risks. Environmental adaptability requirements: The natural environment in different regions varies greatly. For example, high humidity in coastal areas and strong winds in mountainous areas will challenge the insulation performance of overhead lines. Traditional methods have limited adaptability and cannot be effectively adjusted to these different environmental conditions. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a combined insulating partition and a method of using the same for low-voltage non-stop power distribution network operations, which ensures that the insulating partition can be installed quickly and stably during the operation of 0.4kV overhead conductors, maintains the stability of the conductors, is safe and reliable, and is easy to operate, and can greatly improve the safety and efficiency of non-stop power distribution operations.

[0007] The technical solution of the present invention is: a combined insulating partition for low-voltage non-stop operation of a distribution network, comprising: a low-voltage drainage line fixing part, an insulating partition, a low-voltage main line clamping line slot, a fixing plate, and an insulating telescopic rod. Two insulating telescopic rods are arranged between two adjacent insulating partitions. The two adjacent insulating partitions are parallel to each other. The ends of the insulating telescopic rods are fixedly connected to the insulating partitions through the fixing plate. Three insulating partitions and four insulating telescopic rods are connected to form a main structure of the combined insulating partition. The three insulating partitions are parallel to each other, and two of the insulating telescopic rods are connected to form a main structure of the combined insulating partition. Two low-voltage main conductor clamping troughs are respectively arranged on the insulating telescopic rod, and the two low-voltage main conductor clamping troughs are located between the middle insulating partition and one of the edge insulating partitions, and the two low-voltage main conductor clamping troughs are on the same straight line. Two low-voltage drainage wire fixing parts are respectively arranged on the front and back sides of the edge insulating partition. The three insulating partitions, four low-voltage drainage wire fixing parts, two low-voltage main conductor clamping troughs, several fixing plates and four insulating telescopic rods are connected to form a combined insulating partition, and the combined insulating partition is a swastika structure.

[0008] Furthermore, the low-voltage drainage line fixing member and the low-voltage main wiring line clamping trough are both U-shaped structures, and the U-shaped notches of the low-voltage drainage line fixing member and the low-voltage main wiring line clamping trough face opposite directions.

[0009] Furthermore, the low-voltage drain line fixing piece is fixedly connected to the insulating partition by bolts.

[0010] Furthermore, the low-voltage main conductor clamp trough is fixedly connected to the insulating telescopic rod by bolts.

[0011] Furthermore, the fixing plate is fixedly connected to the insulating telescopic rod and the insulating partition plate respectively by bolts, and the fixing plate is a rectangular flat plate structure.

[0012] Furthermore, the edges of the insulating partition are sealed.

[0013] Furthermore, a handle is provided on the insulating telescopic rod, and the handle is located on the back side of the low-voltage main conductor clamping groove.

[0014] Furthermore, a partial discharge detector is provided on the insulating partition.

[0015] A method for using a combined insulating partition for low-voltage non-stop operation of a distribution network comprises the following steps:

[0016] Step 1: Preparation, including the following steps:

[0017] S1. Check the equipment: Before installation, the operator shall check the combined insulating partition, including the insulating partition, insulating telescopic rod, low-voltage drainage wire fixing parts, low-voltage main wire clamping trough and other components to ensure that they are free of damage, cracks, and other defects;

[0018] S2. Prepare tools: Prepare the necessary tools, including insulating rods, insulating gloves, insulating shoes, and measuring equipment;

[0019] S3. Personal protection: Operators should wear insulating gloves and insulating shoes, and ensure that there are no conductive objects on their bodies;

[0020] Step 2: Equipment installation, including the following steps:

[0021] S4. Set up insulating partitions: Use insulating rods to transport three insulating partitions to the working position one by one, keep an appropriate distance between each insulating partition, and ensure that they are parallel to each other; connect the insulating telescopic rods to the adjacent insulating partitions through the fixing plate, and adjust the length of the insulating telescopic rods according to the line distance to ensure stable connection of the equipment;

[0022] S5. Install the low-voltage main conductor clamping trough: Select two insulating telescopic rods as the bearing rods of the main conductor fixing trough, and install the low-voltage main conductor clamping trough in them, ensuring that the two low-voltage main conductor clamping troughs are in the same horizontal straight line position;

[0023] S6. Fix the combined insulating partition to the overhead conductor: Use the insulating rod to align the U-shaped groove of the low-voltage main conductor clamping trough set in the combined insulating partition with the position of the 0.4kV overhead conductor, slowly place the equipment on the 0.4kV overhead conductor, ensure that the conductor enters the U-shaped groove correctly, and use the low-voltage drainage wire fixing piece to fix and guide the drainage wire to prevent the equipment from sliding or falling off due to external force;

[0024] S7. Check stability: Use the insulating rod to gently shake the combined insulating partition to check its stability and ensure that it will not loosen or fall off under wind or slight vibration; confirm that all fixing plates, insulating telescopic rods and low-voltage main conductor card ducts are firmly connected;

[0025] Step 3: Performance testing, including the following steps:

[0026] S8. Insulation resistance test: Use an insulation resistance tester to test the insulation performance of the combined insulation partition. Place the test probe in contact with different parts of the insulation partition and measure the insulation resistance value to ensure that it meets the relevant standard requirements.

[0027] S9. Withstand voltage test: Connect the high voltage end of the withstand voltage tester to the combined insulating partition, gradually increase the voltage to the preset value, maintain it for 5 minutes, and observe whether there is insulation damage on the combined insulating partition;

[0028] Step 4: Equipment maintenance and daily inspection, including the following steps:

[0029] S10. Regular inspection: Before each use, check whether the surface of the combined insulating partition is cracked, aged or otherwise damaged. If any abnormality is found, the damaged parts should be replaced immediately; confirm that the telescopic function of the insulating telescopic rod is normal and the connection of the fixed plate is not loose;

[0030] S11. Cleaning and maintenance: Use anhydrous alcohol or special cleaning agent to clean the surface of the combined insulating partition to avoid dust, oil and other dirt that may affect the insulation performance; when storing, place the combined insulating partition in a dry and cool place, avoid direct sunlight and humid environment to prevent the insulation performance from deteriorating;

[0031] S12. Regularly test insulation performance: Conduct insulation resistance test and withstand voltage test every six months to ensure the continued reliability and safety of the combined insulation partitions; for frequently used combined insulation partitions, conduct tests every quarter to ensure that they meet the safety operation standards at all times;

[0032] Step 5, disassembly and storage, including the following steps:

[0033] S13, dismantle the combined insulating partition: use the insulating rod to dismantle the low-voltage main conductor clamping duct and the low-voltage drainage conductor fixing piece in sequence, retract the insulating telescopic rod and separate it from the insulating partition; remove the insulating partitions one by one and put them back into the storage box;

[0034] S14. Storage requirements: After wiping all parts of the combined insulating partition clean, store them in moisture-proof and dust-proof storage boxes to avoid contact with sharp objects.

[0035] Beneficial effects of the present invention:

[0036] 1. Improved safety: The present invention uses a partition and a telescopic rod made of insulating material to ensure that the direct contact between the operator and the wire is effectively isolated during live operation, greatly reducing the risk of electric shock and ensuring the safety of the operator; the low-voltage main wire clamping trough and the low-voltage drainage wire fixing piece are both U-shaped structures, and the directions of the clamping trough openings are opposite. This design helps to quickly and stably fix the wire during the installation process and prevent the wire from slipping during the operation, further improving the safety of the operation;

[0037] 2. Improve work efficiency: The present invention forms a stable and flexible main structure through the combination of three insulating partitions and four insulating telescopic rods. The modular design makes the installation and disassembly process easier, shortens the operation time, and effectively improves the efficiency of on-site operations; the length of the insulating telescopic rod can be adjusted according to actual conditions to meet the installation requirements of wires at different distances. This flexibility simplifies the on-site operation process, reduces repeated adjustments caused by the fixing device not adapting to the on-site environment, and saves operation time; 3. The installation process is simple: the low-voltage drainage line fixings, the low-voltage main conductor card trough and the fixing plate are fixedly connected to the insulating telescopic rod and the insulating partition by bolts. This bolt connection method not only ensures the stability of the device, but also facilitates quick disassembly and assembly on site, effectively reducing the complexity of installation; the insulating telescopic rod is equipped with a handle to facilitate operators to move the equipment during installation and adjustment, improving the operability and humanized design of the equipment;

[0038] 4. Reliable insulation performance: The edges of the insulating partitions are sealed to prevent external factors such as moisture and dust from damaging the insulating materials, thereby maintaining the long-term insulation performance of the equipment and ensuring normal operation in harsh environments; a partial discharge detector is installed on the insulating partition to monitor the insulation status of the equipment in real time during live operation, and to promptly detect insulation performance degradation or discharge problems, which helps prevent electrical failures and improve the operating reliability of the equipment;

[0039] 5. Easy maintenance and management: The present invention provides detailed regular inspection, cleaning and maintenance methods to ensure that the equipment maintains a good working condition during long-term use and reduce power outages and maintenance costs caused by failures; after installation, a withstand voltage test and insulation resistance test are performed to ensure that the equipment meets safety standards before use. This strict performance testing process ensures the safety and reliability of the equipment during live operation;

[0040] 6. Strong adaptability: The combined insulating partition of the present invention adopts a swastika structure, has good stability and load-bearing capacity, and is suitable for a variety of construction environments. Whether it is a flat urban power grid environment or a rural power grid with complex terrain, the structure can be stably fixed on the overhead wire; it is particularly suitable for installation and use on 0.4kV low-voltage distribution lines, and is an effective live working tool under this voltage level;

[0041] 7. Reduce operation and maintenance costs: By improving the safety and efficiency of live operations, the power outage time caused by equipment failure or maintenance is reduced, the power supply reliability of the power grid is improved, and the economic losses of users caused by power outages are indirectly reduced; reasonable sealing and maintenance measures can effectively prevent damage to the equipment by the external environment, extend the service life of insulating partitions and related components, reduce replacement frequency, and reduce long-term operating costs.

[0042] In summary, the combined insulating partition for low-voltage non-stop operation of the distribution network of the present invention and the use method thereof have significant advantages in safety, operation efficiency, operational convenience, insulation performance, maintenance and management, etc., can effectively solve the shortcomings of traditional overhead distribution line protection measures, and adapt to the power industry's growing demand for non-stop operation and user power supply safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a three-dimensional structural schematic diagram of a combined insulating partition for low-voltage non-stop operation of a distribution network according to the present invention.

[0044] Figure 2 The present invention is a schematic diagram of the planar structure of a combined insulating partition for low-voltage non-stop operation of a distribution network.

[0045] Figure 3 It is a schematic diagram of the planar structure in another direction of a combined insulating partition for low-voltage non-stop operation of a distribution network of the present invention.

[0046] In the figure: 1- low-voltage drainage line fixing part, 2- insulating partition, 3- low-voltage main line clamping duct, 4- fixing plate, 5- insulating telescopic rod. DETAILED DESCRIPTION

[0047] like Figure 1-3As shown, a combined insulating partition for low-voltage non-stop operation of a distribution network comprises: a low-voltage drainage line fixing part 1, an insulating partition 2, a low-voltage main line clamping line slot 3, a fixing plate 4, and an insulating telescopic rod 5. Two insulating telescopic rods 5 are arranged between two adjacent insulating partitions 2. The two adjacent insulating partitions 2 are parallel to each other. The ends of the insulating telescopic rods 5 are fixedly connected to the insulating partitions 2 through the fixing plate 4. Three insulating partitions 2 and four insulating telescopic rods 5 are connected to form a main structure of the combined insulating partition. The three insulating partitions 2 are parallel to each other, and two of the insulating telescopic rods 5 are connected to form a main structure of the combined insulating partition. Two low-voltage main conductor clamping ducts 3 are respectively arranged on the telescopic rod 5, and the two low-voltage main conductor clamping ducts 3 are located between the middle insulating partition 2 and one of the edge insulating partitions 2, and the two low-voltage main conductor clamping ducts 3 are on the same straight line. Two low-voltage drainage wire fixing parts 1 are respectively arranged on the front and back sides of the edge insulating partition 2. The three insulating partitions 2, four low-voltage drainage wire fixing parts 1, two low-voltage main conductor clamping ducts 3, a number of fixing plates 4 and four insulating telescopic rods 5 are connected to form a combined insulating partition, and the combined insulating partition is a swastika structure.

[0048] Preferably, the low-voltage drainage line fixing member 1 and the low-voltage main wiring clamping duct 3 are both U-shaped structures, and the U-shaped notches of the low-voltage drainage line fixing member 1 and the low-voltage main wiring clamping duct 3 face opposite directions.

[0049] Preferably, the low-voltage drain line fixture 1 is fixedly connected to the insulating partition 2 by bolts.

[0050] Preferably, the low-voltage main conductor clamping duct 3 is fixedly connected to the insulating telescopic rod 5 by bolts.

[0051] Preferably, the fixing plate 4 is fixedly connected to the insulating telescopic rod 5 and the insulating partition plate 2 respectively by bolts, and the fixing plate 4 is a rectangular flat plate structure.

[0052] Preferably, the edges of the insulating partition 2 are sealed.

[0053] Preferably, a handle is provided on the insulating telescopic rod 5 , and the handle is located on the back side of the low-voltage main conductor clamping groove 3 .

[0054] Preferably, a partial discharge detector is provided on the insulating partition 2 .

[0055] A method for using a combined insulating partition for low-voltage non-stop operation of a distribution network comprises the following steps:

[0056] Step 1: Preparation, including the following steps:

[0057] S1. Check the equipment: Before installation, the operator shall check the combined insulating partition, including the insulating partition 2, the insulating telescopic rod 5, the low-voltage drainage line fixing part 1, and the low-voltage main line clamping duct 3, to ensure that there are no damage, cracks, or other defects;

[0058] S2. Prepare tools: Prepare the necessary tools, including insulating rods, insulating gloves, insulating shoes, and measuring equipment;

[0059] S3. Personal protection: Operators should wear insulating gloves and insulating shoes, and ensure that there are no conductive objects on their bodies;

[0060] Step 2: Equipment installation, including the following steps:

[0061] S4. Set up insulating partitions: Use insulating rods to transport three insulating partitions 2 to the working position one by one, keep an appropriate distance between each insulating partition 2, and ensure that they are parallel to each other; connect the insulating telescopic rods 5 to the adjacent insulating partitions 2 through the fixing plate 4, and adjust the length of the insulating telescopic rods 5 according to the line distance to ensure stable connection of the equipment;

[0062] S5, install the low-voltage main conductor clamping groove: select two insulating telescopic rods 5 as the bearing rods of the main conductor fixing groove, install the low-voltage main conductor clamping groove 3 in it, and ensure that the two low-voltage main conductor clamping grooves 3 are in the same horizontal straight line position;

[0063] S6. Fix the combined insulating partition to the overhead conductor: Use the insulating rod to align the U-shaped groove of the low-voltage main conductor clamping groove 3 set in the combined insulating partition with the position of the 0.4kV overhead conductor, slowly place the device on the 0.4kV overhead conductor, ensure that the conductor enters the U-shaped groove correctly, and use the low-voltage drainage wire fixture 1 to fix and guide the drainage wire to prevent the device from sliding or falling off due to external force;

[0064] S7. Check stability: Use the insulating rod to gently shake the combined insulating partition to check its stability to ensure that it will not loosen or fall off under wind or slight vibration; confirm that all fixing plates 4, insulating telescopic rods 5 and low-voltage main conductor card ducts 3 are firmly connected;

[0065] Step 3: Performance testing, including the following steps:

[0066] S8. Insulation resistance test: Use an insulation resistance tester to test the insulation performance of the combined insulation partition. Place the test probe in contact with different parts of the insulation partition and measure the insulation resistance value to ensure that it meets the relevant standard requirements.

[0067] S9. Withstand voltage test: Connect the high voltage end of the withstand voltage tester to the combined insulating partition, gradually increase the voltage to the preset value, maintain it for 5 minutes, and observe whether there is insulation damage on the combined insulating partition;

[0068] Step 4: Equipment maintenance and daily inspection, including the following steps:

[0069] S10. Regular inspection: Before each use, check whether the surface of the combined insulating partition is cracked, aged or otherwise damaged. If any abnormality is found, the damaged parts should be replaced immediately; confirm that the telescopic function of the insulating telescopic rod 5 is normal and the connection of the fixing plate 4 is not loose;

[0070] S11. Cleaning and maintenance: Use anhydrous alcohol or special cleaning agent to clean the surface of the combined insulating partition to avoid dust, oil and other dirt that may affect the insulation performance; when storing, place the combined insulating partition in a dry and cool place, avoid direct sunlight and humid environment to prevent the insulation performance from deteriorating;

[0071] S12. Regularly test insulation performance: Conduct insulation resistance test and withstand voltage test every six months to ensure the continued reliability and safety of the combined insulation partitions; for frequently used combined insulation partitions, conduct tests every quarter to ensure that they meet the safety operation standards at all times;

[0072] Step 5, disassembly and storage, including the following steps:

[0073] S13, disassembling the combined insulating partition: using an insulating rod to sequentially disassemble the low-voltage main conductor clamping duct 3 and the low-voltage drainage conductor fixing member 1, retracting the insulating telescopic rod 5 and separating it from the insulating partition 2; removing the insulating partitions one by one and putting them back into the storage box;

[0074] S14. Storage requirements: After wiping all parts of the combined insulating partition clean, store them in moisture-proof and dust-proof storage boxes to avoid contact with sharp objects.

[0075] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined insulating partition for low-voltage non-stop operation of a distribution network, characterized in that: include: A low-voltage drain wire fixing member (1), an insulating partition (2), a low-voltage main conductor clamping groove (3), a fixing plate (4), and an insulating telescopic rod (5), wherein two insulating telescopic rods (5) are arranged between two adjacent insulating partitions (2), the two adjacent insulating partitions (2) are parallel to each other, and the ends of the insulating telescopic rods (5) are fixedly connected to the insulating partitions (2) through the fixing plate (4), and three insulating partitions (2) and four insulating telescopic rods (5) are connected to form a combined insulating partition main structure, the three insulating partitions (2) are parallel to each other, and two of the insulating telescopic rods (5) are respectively arranged There are two low-voltage main conductor clamping troughs (3), the two low-voltage main conductor clamping troughs (3) being located between a middle insulating partition (2) and one of the edge insulating partitions (2), the two low-voltage main conductor clamping troughs (3) being located on the same straight line, the front and back sides of the edge insulating partition (2) being provided with two low-voltage drainage wire fixing members (1) respectively, the three insulating partitions (2), the four low-voltage drainage wire fixing members (1), the two low-voltage main conductor clamping troughs (3), a plurality of fixing plates (4) and four insulating telescopic rods (5) being connected to form a combined insulating partition, the combined insulating partition being a swastika-shaped structure.

2. A combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, characterized in that: The low-voltage drainage line fixing member (1) and the low-voltage main wiring line clamping trough (3) are both U-shaped structures, and the U-shaped notches of the low-voltage drainage line fixing member (1) and the low-voltage main wiring line clamping trough (3) face in opposite directions.

3. A combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, characterized in that: The low-voltage drain line fixing member (1) is fixedly connected to the insulating partition plate (2) via bolts.

4. A combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, characterized in that: The low-voltage main conductor clamping duct (3) is fixedly connected to the insulating telescopic rod (5) via bolts.

5. A combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, characterized in that: The fixing plate (4) is fixedly connected to the insulating telescopic rod (5) and the insulating partition plate (2) respectively by means of bolts, and the fixing plate (4) is a rectangular flat plate structure.

6. A combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, characterized in that: The edges of the insulating partition (2) are sealed.

7. A combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, characterized in that: The insulating telescopic rod (5) is provided with a handle, and the handle is located on the back side of the low-voltage main conductor clamping groove (3).

8. The combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, characterized in that: A partial discharge detector is provided on the insulating partition (2).

9. A method for using the combined insulating partition for low-voltage non-stop operation of a distribution network according to claim 1, comprising the following steps: Step 1: Preparation, including the following steps: S1. Checking the equipment: Before installation, the operator shall check the combined insulating partition, including the insulating partition (2), the insulating telescopic rod (5), the low-voltage drainage wire fixing part (1), and the low-voltage main wire clamping duct (3), to ensure that they are free of damage, cracks, and other defects; S2. Prepare tools: Prepare the necessary tools, including insulating rods, insulating gloves, insulating shoes, and measuring equipment; S3. Personal protection: Operators should wear insulating gloves and insulating shoes, and ensure that there are no conductive objects on their bodies; Step 2: Equipment installation, including the following steps: S4. Setting the insulating partitions: using insulating rods to transport the three insulating partitions (2) one by one to the working position, maintaining an appropriate distance between each insulating partition (2) and ensuring that they are parallel to each other; connecting the insulating telescopic rods (5) to the adjacent insulating partitions (2) through the fixing plate (4), and adjusting the length of the insulating telescopic rods (5) according to the line distance to ensure stable connection of the equipment; S5, installing the low-voltage main conductor clamping groove: select two insulating telescopic rods (5) as the bearing rods of the main conductor fixing groove, install the low-voltage main conductor clamping groove (3) therein, and ensure that the two low-voltage main conductor clamping grooves (3) are in the same horizontal straight line position; S6. Fix the combined insulating partition to the overhead conductor: Use the insulating rod to align the U-shaped groove of the low-voltage main conductor clamping groove (3) provided in the combined insulating partition with the position of the 0.4 kV overhead conductor, slowly place the device on the 0.4 kV overhead conductor, ensure that the conductor enters the U-shaped groove correctly, and use the low-voltage drain wire fixing member (1) to fix and guide the drain wire to prevent the device from sliding or falling off due to external force; S7. Check stability: Use the insulating rod to gently shake the combined insulating partition to check its stability and ensure that it will not loosen or fall off in the event of wind or slight vibration. Confirm that all fixing plates (4), insulating telescopic rods (5) and low-voltage main conductor clamp ducts (3) are firmly connected. Step 3: Performance testing, including the following steps: S8. Insulation resistance test: Use an insulation resistance tester to test the insulation performance of the combined insulation partition. Place the test probe in contact with different parts of the insulation partition and measure the insulation resistance value to ensure that it meets the relevant standard requirements. S9. Withstand voltage test: Connect the high voltage end of the withstand voltage tester to the combined insulating partition, gradually increase the voltage to the preset value, maintain it for 5 minutes, and observe whether there is insulation damage on the combined insulating partition; Step 4: Equipment maintenance and daily inspection, including the following steps: S10. Regular inspection: Before each use, check whether the surface of the combined insulating partition is cracked, aged or otherwise damaged. If any abnormality is found, the damaged parts should be replaced immediately. Confirm that the telescopic function of the insulating telescopic rod (5) is normal and that the connection of the fixing plate (4) is not loose. S11. Cleaning and maintenance: Use anhydrous alcohol or special cleaning agent to clean the surface of the combined insulating partition to avoid dust, oil and other dirt that may affect the insulation performance; when storing, place the combined insulating partition in a dry and cool place, avoid direct sunlight and humid environment to prevent the insulation performance from deteriorating; S12. Regularly test insulation performance: Conduct insulation resistance test and withstand voltage test every six months to ensure the continued reliability and safety of the combined insulation partitions; for frequently used combined insulation partitions, conduct tests every quarter to ensure that they meet the safety operation standards at all times; Step 5, disassembly and storage, including the following steps: S13, disassembling the combined insulating partition: using an insulating rod to sequentially disassemble the low-voltage main conductor clamping duct (3) and the low-voltage drainage conductor fixing member (1), retracting the insulating telescopic rod (5) and separating it from the insulating partition (2); removing the insulating partitions one by one and putting them back into the storage box; S14. Storage requirements: After wiping all parts of the combined insulating partition clean, store them in moisture-proof and dust-proof storage boxes to avoid contact with sharp objects.

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