A kind of water-blocking type 10KV overhead insulated conductor fatigue test device

Abstract

This utility model relates to the field of cable testing and discloses a water-blocking fatigue testing device for 10KV overhead insulated conductors. It includes a protective chamber and a sealed door on the side wall of the chamber. A conductor suspension device is installed inside the chamber, and a water mist spraying device is installed at the top. The bottom of the chamber is inclined so that the water mist sprayed from the device can be directed to a floor drain. The outlet of the floor drain is connected to the water mist spraying device via a water circulation pipe. The protective chamber also includes a temperature and humidity control component and a light intensity adjustment component. A monitoring component is installed above one side wall of the chamber. This utility model can simulate various external damages suffered by conductors under natural conditions, amplifying the sources of damage to accelerate fatigue test simulation and test whether the conductor still meets usage standards after long-term operation.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, and in particular to a water-blocking 10KV overhead insulated conductor fatigue testing device. Background Technology

[0002] During cable processing and production, in order to assess its durability under long-term use and bending loads, it is often necessary to test the reliability of the cable through fatigue testing equipment. This test is crucial to ensuring the quality and safety performance of the cable.

[0003] Chinese utility model patent CN223217289U discloses a cable fatigue testing device, including a test chamber and a swing mechanism. The test chamber contains a fixed frame with several elbow clamps for fixing the cable ends. The swing mechanism, located within the test chamber, is used to simultaneously perform fatigue tests on multiple cables. This application uses multiple sets of elbow clamps, fixing rods, and tightening screws to clamp and fix multiple cables. A gear on the output shaft of a drive motor drives a gear on a mounting frame to rotate, which in turn rotates an arc-shaped plate, causing a drive rod to move. The fixing rod then causes the cable to reciprocate and bend, thus performing fatigue tests on multiple cables and improving testing efficiency.

[0004] However, its shortcomings are as follows: the fatigue testing device only fixes the two ends of the cable with multiple sets of elbow clamps. When the cable swings, the stress concentration at the clamping points at both ends is different from the cable fixing method in the actual environment. This can easily cause the cable to break at the fixing point, resulting in tip discharge that can injure the surrounding operators. At the same time, the device can only simulate the situation of the cable swinging back and forth in the wind. It cannot simulate other natural environments that are prone to cable damage, such as rain and sunlight, resulting in inaccurate test results. Utility Model Content

[0005] The purpose of this invention is to provide a water-blocking 10KV overhead insulated conductor fatigue testing device. By simulating various external damages suffered by the conductor under natural conditions and amplifying the sources of such damage to accelerate the fatigue test simulation, the device tests whether the conductor still meets the usage standards after long-term use.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a water-blocking 10KV overhead insulated conductor fatigue testing device, including a protective chamber and a sealed door opened on the side wall of the protective chamber. A conductor suspension device is installed inside the protective chamber, a water mist spraying device is installed on the top of the protective chamber, and the bottom of the protective chamber is inclined so that the water mist sprayed by the water mist spraying device can be directed to the floor drain. The outlet of the floor drain is connected to the water mist spraying device through a water circulation device pipe. Temperature and humidity control components and light intensity adjustment components are also installed inside the protective chamber, and a monitoring component is installed above one side wall of the protective chamber.

[0007] By adopting the above technical solutions, the protective chamber and sealed door can protect operators from injury when the cable is energized. Installing the cable at the conductor suspension device can simulate the stress on the cable under crosswinds under natural conditions and test whether the stress concentration points of the cable are damaged when exposed to wind. The water mist spraying device can simulate a rainfall environment and test the water resistance performance of the cable. The water sprayed by the water mist spraying device is collected and recycled through a water circulation device. The temperature and humidity control component can quickly adjust the temperature and humidity in the protective chamber to simulate climate change. The light intensity adjustment component can simulate the effect of natural light on the cable armor. The monitoring component allows operators to remotely check whether leakage or damage occurs after the cable is energized, preventing personnel injury.

[0008] The present invention is further configured as follows: the wire suspension device includes support boxes symmetrically arranged on both sides of the protective chamber, a suspension base is rotatably connected to the opposite side of the support box, a fixed cylinder is vertically and rotatably connected to the front end of the suspension base, the suspension base passes through the side of the support box and is connected to the main gear rotatably connected in the support box, the main gear meshes with the driven half gear connected to the output end of the suspension motor, only a portion of the circumference of the driven half gear is provided with teeth, and a wire placement hole is opened on the support box to extend to the outside of the protective chamber.

[0009] By adopting the above technical solution, the two ends of the cable pass through the wire placement holes opened on the support box to the outside of the protective room. The pendulum motor can rotate forward and reverse, driving the half gear to rotate in both directions. Only half of the half gear has teeth that mesh with the main gear, while the rest does not contact the main gear. Therefore, when the main gear rotates with the half gear to a certain height, it will separate. Under the action of the cable's gravity, the main gear falls back, and the pendulum base rotates back and forth with the main gear, thereby causing the cable to swing, simulating the stress state of the cable after being blown by a crosswind. The cable is fixed in a vertically rotatable fixed cylinder. The orientation of the fixed cylinder is the same as the direction of the cable's force, so that the contact part between the cable and the fixed cylinder is evenly stressed. This avoids the phenomenon that the stress on the clamping positions on both sides is too concentrated during the shaking of the cable, which would cause the cable clamping position to break.

[0010] A further feature of this invention is that the fixed cylinder includes a pressure base that can be vertically rotatably connected to the front end of the suspension base. The front end of the pressure base is fixed with two split semi-circular threaded connectors. A threaded cap is detachably connected to the threaded connector, and the inner diameter of the opening of the threaded cap is larger than the inner diameter of the top of the cap.

[0011] By adopting the above technical solution, the inner diameter of the two semi-circular threaded connectors is larger than the diameter of the cable, allowing the cable to pass through the connector. Since the inner diameter of the opening of the thread cap is the same as that of the two semi-circular threaded connectors, while the inner diameter of the top of the thread cap is smaller than the inner diameter of the threaded connectors, when the thread cap is screwed into the threaded connector, the top of the thread cap is squeezed inward, causing the two semi-circular threaded connectors to deform inward under force until they contact the outer wall of the cable and fix the cable through friction.

[0012] A further feature of this invention is that the water mist spraying device includes several water mist spray heads installed at the top of the protective chamber, and all water mist spray heads are connected to the water circulation device pipe.

[0013] By adopting the above technical solution, the water mist spray head can spray water mist into the protective room to simulate a natural rainfall environment. Since the diameter of the water mist particles is smaller than that of water droplets, they can pass through smaller gaps. Compared with the outdoor rain environment, the water resistance performance of the cable can be tested more rigorously.

[0014] A further feature of this invention is that the water circulation device includes a water storage tank connected to the drain outlet pipe, a first water pump is installed between the drain outlet and the water storage tank, and a second water pump is installed between the water storage tank and the water mist spray head.

[0015] By adopting the above technical solution, the first water pump draws the collected water from the outlet of the floor drain into the water storage tank, and the second water pump draws water from the water storage tank and delivers it to the water mist spray head for spraying, thus completing the water recycling.

[0016] A further feature of this invention is that the temperature and humidity control component includes an indoor air conditioner unit mounted on a support box, and a temperature and humidity sensor is mounted on the side wall of the support box opposite to the indoor air conditioner unit.

[0017] By adopting the above technical solution, the indoor unit of the air conditioner can change the temperature and humidity inside the protected room, and continuously adjust the temperature and humidity according to the signals transmitted by the temperature and humidity sensors, simulating the impact of temperature changes in the outdoor environment on the cable.

[0018] A further feature of this invention is that the light intensity adjustment component includes an ultraviolet lamp and an ambient light lamp fixed to the side wall of the protective chamber, and the brightness of the ultraviolet lamp is adjustable.

[0019] By adopting the above technical solutions, ultraviolet lamps can simulate the effects of long-term sunlight exposure on cable outer armor. At the same time, the test irradiation time can be shortened by increasing the light intensity of the ultraviolet lamps, saving test time and costs. Ambient lights can simulate the color temperature of sunlight, making it convenient for operators to visually inspect the cable outer armor.

[0020] A further feature of this invention is that the monitoring component includes an infrared camera and a webcam mounted on the top of the protective room.

[0021] By adopting the above technical solution, after energizing both ends of the cable, the infrared camera can capture the high-temperature infrared image generated inside the cable due to phenomena such as tip discharge, and transmit it to the outside of the protective room 1 for external operators to observe. The ambient light 62 is turned on and the cable surface is inspected through the camera 72 to observe whether there is any damage to the cable armor.

[0022] A further feature of this invention is that the side walls and top of the protective chamber are covered with an opaque insulation layer.

[0023] By adopting the above technical solutions, the effects of external light and temperature on the test results in the protective room can be prevented.

[0024] The beneficial effects of this utility model are:

[0025] 1. By using the conductor suspension device, water mist spray device, temperature and humidity control components and light intensity adjustment components installed in the protective room, the climatic conditions under which cables are susceptible to damage in the natural environment are simulated, and the fatigue test speed is accelerated by increasing the intensity of the damage source.

[0026] 2. The water mist sprayed by the water mist spraying device is collected and recycled through a water circulation device, reducing water waste. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional view of the overall structure of a water-blocking 10KV overhead insulated conductor fatigue testing device according to this utility model.

[0029] Figure 2 This is a partial structural cross-sectional view of a water-blocking 10KV overhead insulated conductor fatigue testing device according to this utility model.

[0030] Figure 3 This utility model Figure 2 Schematic diagram of part A in the middle;

[0031] Figure 4 This utility model Figure 2 Schematic diagram of Part B in the middle section;

[0032] Figure 5 This is a side sectional view of a water-blocking 10KV overhead insulated conductor fatigue testing device according to this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the threaded cap of this utility model.

[0034] In the diagram: 1. Protective chamber; 11. Sealed door; 12. Floor drain; 13. Wire mounting hole; 2. Wire suspension device; 21. Support box; 22. Suspension base; 23. Fixing cylinder; 231. Press-fit base; 232. Threaded connector; 233. Threaded cap; 24. Main gear; 25. Driven half gear; 251. Gear tooth; 26. Suspension motor; 3. Water mist spray device; 31. Water mist spray head; 4. Water circulation device; 41. Water storage tank; 42. First water pump; 43. Second water pump; 5. Temperature and humidity control component; 51. Air conditioner indoor unit; 52. Temperature and humidity sensor; 6. Light intensity adjustment component; 61. Ultraviolet lamp; 62. Ambient light; 7. Monitoring component; 71. Infrared camera; 72. Camera. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] This utility model embodiment specifically provides a water-blocking 10KV overhead insulated conductor fatigue testing device, including a protective chamber 1 and a sealed door 11 opened on the side wall of the protective chamber 1. A conductor suspension device 2 is installed inside the protective chamber 1, and a water mist spraying device 3 is installed on the top of the protective chamber 1. The bottom of the protective chamber 1 is inclined so that the water mist sprayed by the water mist spraying device 3 can be directed to a floor drain 12. The outlet of the floor drain 12 is connected to the water mist spraying device 3 through a water circulation device 4 pipe. A temperature and humidity control component 5 and a light intensity adjustment component 6 are also installed inside the protective chamber 1, and a monitoring component 7 is installed above one side wall of the protective chamber 1.

[0037] To conduct fatigue tests on medium-voltage water-blocking cables, the cable to be tested needs to be installed on the conductor suspension device 2 inside the protective chamber 1. After installation, operators must not enter the protective chamber 1 to prevent injury. The conductor suspension device 2 is controlled to make the cable sway left and right continuously, simulating the movement trajectory of the cable under continuous crosswind in an overhead state. A tensile test is then conducted on the cable. The water-blocking performance of the cable is tested by simulating rainfall through the water mist spray device 3. To save water, the water sprayed by the water mist spray device 3 is recycled and reused through the water circulation device 4. The temperature and humidity control component 5 simulates the effects of high and low temperatures on the cable in harsh environments. The light intensity adjustment component 6 simulates the damage to the cable armor caused by continuous ultraviolet radiation. After the pressure test is completed, the cable is connected to an external power source, and the cable is observed for damage or leakage through the monitoring component 7.

[0038] The conductor suspension device 2 includes support boxes 21 symmetrically arranged on both sides of the protective chamber 1. The opposite sides of the support boxes 21 are rotatably connected to suspension bases 22. The front end of the suspension bases 22 is vertically rotatably connected to a fixed cylinder 23. The suspension bases 22 pass through the side of the support boxes 21 and are fixedly connected to the main gear 24 rotatably connected in the support boxes 21. The main gear 24 meshes with the driven half gear 25 connected to the output end of the suspension motor 26. Only a portion of the circumference of the driven half gear 25 is provided with gear teeth 251. The support boxes 21 are provided with conductor placement holes 13 that extend to the outside of the protective chamber 1.

[0039] Both ends of the cable pass through the wire placement holes 13 on the support box 21 to the outside of the protective chamber 1. Since the diameter of the wire placement holes 13 matches the cable diameter, the protective chamber 1 is relatively sealed, and the temperature is not affected by the placement holes. The outer casing of the pendulum motor 26 is fixed to the inner wall of the support box 21. The pendulum motor 26 can rotate forward and reverse, thereby driving the driven half gear 25 to rotate in both directions. Only half of the driven half gear 25 has teeth that mesh with the main gear 24, while the rest does not contact the main gear 24. Therefore, when the main gear 24 rotates to a certain height with the driven half gear 25, it will fall back under the weight of the cable. The pendulum base 2... 2 will rotate back and forth with the main gear 24, thereby causing the cable to swing, simulating the stress state of the cable after being blown by crosswind. Since both ends of the cable are installed on the conductor suspension device 2, the forward and reverse rotation of the suspension motors 26 at both ends can be controlled to simulate the stress of the cable under single-point wind, double-point wind, and different wind directions on both sides. The cable is fixed in the vertically rotatable fixed cylinder 23. The orientation of the fixed cylinder 23 is the same as the direction of the cable force, so that the contact part between the cable and the fixed cylinder 23 is evenly stressed, avoiding the phenomenon that the stress on the clamping positions on both sides is too concentrated during the shaking of the cable, which leads to the cable clamping position being damaged.

[0040] Furthermore, the fixed cylinder 23 includes a pressure base 231 that can be vertically rotatably connected to the front end of the suspension base 22. The front end of the pressure base 231 is fixed with two split semi-circular threaded connectors 232. A threaded cap 233 is detachably connected to the threaded connector 232. The inner diameter of the opening of the threaded cap 233 is larger than the inner diameter of the top of the cap.

[0041] The inner diameter of the two semi-circular threaded connectors 232 is slightly larger than the diameter of the cable, allowing the cable to pass through the connectors 232. Since the inner diameter of the opening of the threaded cap 233 is the same as that of the two semi-circular threaded connectors 232, while the inner diameter of the top of the threaded cap is smaller than that of the two semi-circular threaded connectors 232, when the threaded cap 233 is screwed into the threaded connector 232, the top of the threaded cap is squeezed inward, causing the two semi-circular threaded connectors 232 to deform inward under force until they come into contact with the outer wall of the cable and are fixed by friction. When the cable needs to be disassembled, it can also be quickly removed by reversing the threaded cap 233.

[0042] In practice, the water mist spraying device 3 includes several water mist spray heads 31 installed on the top of the protective chamber 1, and all water mist spray heads 31 are connected to the water circulation device 4 pipe.

[0043] To test the water resistance of the cable, water mist is sprayed downwards through the water mist spray head 31 at the top of the protective chamber 1. Since the diameter of the water mist particles is smaller than that of ordinary water droplets, they can pass through smaller gaps, allowing for a more rigorous test of the cable's water resistance compared to outdoor rain conditions.

[0044] Furthermore, the water circulation device 4 includes a water storage tank 41 connected to the outlet pipe of the floor drain 12, a first water pump 42 is provided between the outlet of the floor drain 12 and the water storage tank 41, and a second water pump 43 is provided between the water storage tank 41 and the water mist spray head 31.

[0045] To reduce water waste, the water sprayed from the water mist spray head 31 is collected at the floor drain 12 and flows out from the protective chamber 1. The collected water is pumped from the outlet of the floor drain 12 to the water storage tank 41 by the first water pump 42, and then pumped from the water storage tank 41 to the water mist spray head 31 by the second water pump 43 for spraying, thus completing the water recycling. The water pump can be a mature existing product, and its specific structure will not be described in detail in this utility model.

[0046] The temperature and humidity control component 5 includes an indoor air conditioner unit 51 fixed on a support box 21, and a temperature and humidity sensor 52 fixed on the side wall of the support box 21 opposite to the indoor air conditioner unit 51.

[0047] The temperature and humidity inside the protective room 1 are changed by the indoor unit 51 of the air conditioner, and the temperature and humidity are continuously adjusted according to the signal transmitted by the temperature and humidity sensor 52, simulating the impact of temperature changes on the cable in the outdoor environment. The specific structure and working method of the air conditioner and the temperature and humidity sensor are existing technologies and are not within the scope of protection of this utility model.

[0048] The light intensity adjustment component 6 includes an ultraviolet lamp 61 and an ambient light lamp 62 fixed on the side wall of the protective chamber 1. The ultraviolet lamp 61 has adjustable brightness.

[0049] The ultraviolet lamp 61 can simulate the effects of long-term sunlight exposure on the cable's outer armor. At the same time, the test irradiation time can be shortened by increasing the light intensity of the ultraviolet lamp 61, saving test time and costs. The ambient light lamp 62 can simulate the color temperature of sunlight, making it convenient for operators to visually inspect the cable's outer armor.

[0050] In practice, the monitoring component 7 includes an infrared camera 71 and a camera 72 installed on the top of the protective room 1.

[0051] After the aforementioned tests on the cable's suspension stress, water resistance, light exposure, and temperature and humidity control are completed, it is necessary to check the integrity of the cable's outer armor and its continuity. After shutting down all the aforementioned testing devices, the infrared camera 71 is activated, and the two ends of the cable are energized through an external power source. Since the protective chamber 1 is in a completely light-proof environment at this time, if phenomena such as tip discharge occur inside the energized cable, the current accumulated at the tip will generate heat. The infrared camera 71 can capture high-temperature infrared images and transmit them to the outside of the protective chamber 1 for visual observation by external operators. Afterwards, the ambient light 62 is turned on, and the cable's exterior is inspected through the camera 72 to check for any damage. The structures of the infrared camera 71 and camera 72 are mature existing technologies and are not within the scope of protection of this utility model. If further testing of the cable's various performance characteristics after energization is required, they can be removed and sent to the laboratory for relevant testing.

[0052] During implementation, the side walls and top of the protective chamber 1 are covered with an opaque insulation layer.

[0053] In order to further enhance the thermal insulation performance of the protective chamber 1 and prevent external light from affecting the stability of the test, an opaque thermal insulation layer is covered on the side walls and top of the protective chamber 1. The thermal insulation layer material can be made of materials such as opaque thermal insulation rock wool that are available in the prior art.

[0054] Working principle

[0055] S1. Pass the cable through the wire placement holes 13 on both sides of the protective chamber 1 in sequence, tighten the thread cap 233 to fix the cable, start the pendulum motor 26 to drive the pendulum base 22 to swing periodically, and then drive the cable to swing cyclically to simulate the force on the cable under natural crosswind conditions. The situation of single-point wind, double-point wind, and different wind directions on both sides of the cable can be simulated by changing the rotation direction of the pendulum motor 26.

[0056] Turn on the second water pump 43 to pump water from the water storage tank 41 and spray it out from the water mist spray head 31 to test the water resistance of the cable in the rain environment. The water dripping to the bottom of the protective chamber is pumped from the drain outlet 12 through the first water pump 42 into the water storage tank 41 to complete the water circulation.

[0057] Artificial aging fatigue testing of cables can be conducted by activating the temperature and humidity control components and the light intensity adjustment components. The aging rate can be accelerated by increasing the rate of temperature and humidity change and the intensity of ultraviolet light.

[0058] S2. After the fatigue process is completed, turn off the above device. At this time, the protective room is a dark environment. Turn on the power to both ends of the cable and start the infrared camera 71 to observe whether there is heat accumulation when the cable is transmitting power. If the infrared image produces a high bright spot, it means that the cable has a tip discharge at that point, and the power supply must be stopped immediately. If the cable transmission performance is good, turn on the camera 72 to observe whether the cable armor is intact.

[0059] The above describes the basic principles, main features, and advantages of this utility model. The standard parts used in this utility model can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0060] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water-resistant 10KV overhead insulated conductor fatigue testing device, comprising a protective chamber (1) and a sealed door (11) opened on the side wall of the protective chamber (1), characterized in that: The protective chamber (1) is equipped with a wire suspension device (2), and a water mist spraying device (3) is installed on the top of the protective chamber (1). The bottom of the protective chamber (1) is tilted so that the water mist sprayed by the water mist spraying device (3) can be directed to the floor drain (12). The outlet of the floor drain (12) is connected to the water mist spraying device (3) through a water circulation device (4) pipe. The protective chamber (1) is also equipped with a temperature and humidity control component (5) and a light intensity adjustment component (6). A monitoring component (7) is installed above one side wall of the protective chamber (1).

2. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 1, characterized in that: The wire suspension device (2) includes a support box (21) symmetrically arranged on both sides of the protective chamber (1). The opposite sides of the support box (21) are rotatably connected to a suspension base (22). The front end of the suspension base (22) is vertically rotatably connected to a fixed cylinder (23). The suspension base (22) passes through the side of the support box (21) and is connected to a main gear (24) rotatably connected in the support box (21). The main gear (24) meshes with a driven half gear (25) connected to the output end of the suspension motor (26). Only a portion of the circumference of the driven half gear (25) is provided with gear teeth (251). The support box (21) is provided with a wire placement hole (13) that extends to the outside of the protective chamber (1).

3. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 2, characterized in that: The fixed cylinder (23) includes a pressure base (231) that can be vertically rotatably connected to the front end of the pendulum base (22). The front end of the pressure base (231) is fixed with two split semi-circular threaded connectors (232). A threaded cap (233) is detachably connected to the threaded connector (232). The inner diameter of the opening of the threaded cap (233) is larger than the inner diameter of the top of the cap.

4. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 1, characterized in that: The water mist spraying device (3) includes several water mist spray heads (31) installed at the top of the protective chamber (1), and the water mist spray heads (31) are all connected to the water circulation device (4) pipe.

5. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 4, characterized in that: The water circulation device (4) includes a water storage tank (41) connected to the outlet pipe of the floor drain (12), a first water pump (42) is provided between the outlet of the floor drain (12) and the water storage tank (41), and a second water pump (43) is provided between the water storage tank (41) and the water mist spray head (31).

6. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 2, characterized in that: The temperature and humidity control component (5) includes an indoor air conditioning unit (51) installed on the support box (21), and a temperature and humidity sensor (52) is installed on the side wall of the support box (21) opposite to the indoor air conditioning unit (51).

7. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 1, characterized in that: The light intensity adjustment component (6) includes an ultraviolet lamp (61) and an ambient light lamp (62) fixed on the side wall of the protective chamber (1), and the ultraviolet lamp (61) has adjustable brightness.

8. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 1, characterized in that: The monitoring component (7) includes an infrared camera (71) and a camera (72) installed on the top of the protective room (1).

9. The water-blocking 10KV overhead insulated conductor fatigue testing device according to claim 1, characterized in that: The protective chamber (1) has its side walls and top covered with an opaque insulation layer.

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