Fire-retardant fireproof environment-friendly power cable

Abstract

This invention provides a flame-retardant and fire-resistant environmentally friendly power cable, relating to the field of power cable technology. It includes a cable body with a base at its lower part. A fire extinguishing component is located at the top of one side of the base, used to extinguish flames at a fire scene. A protective component is located at the top of the other side of the base, used to protect the fire extinguishing component. A flame-retardant component is located inside the cable body, used to protect the internal conductors from open flame attack. This invention utilizes ceramicized silicone rubber wrapping tape, sintered at high temperature to form a ceramic shell, creating a robust fire barrier. Then, a hexagonal prism thermally responsive gel matrix strip melts at high temperature, mixing with inert gas released from ruptured microcapsules to form an oxygen-isolated carbonized layer, protecting the conductors. Simultaneously, the microcapsules contain inert gas that ruptures upon heating, achieving a "self-extinguishing" function.

Description

Technical Field

[0001] This invention relates to the field of power cable technology, and in particular to a flame-retardant and fire-resistant environmentally friendly power cable. Background Technology

[0002] Flame-retardant and fire-resistant environmentally friendly power cables are high-performance cables that integrate multiple safety features in their design. Their core purpose is to efficiently transmit electrical energy under normal conditions, and in extreme situations such as fires, effectively prevent the spread of flames, maintain the power supply for a period of time, and release very little smoke and toxic gas during combustion, maximizing the safety of personnel and the rescue of critical equipment. Currently, cross-linked polyethylene insulated power cables with flame-retardant and fire-resistant properties are widely used in various power transmission scenarios due to their excellent insulation performance, high-temperature resistance, and good electrical transmission efficiency, becoming one of the mainstream cable types in the power transmission field.

[0003] Currently, some cables on the market have unstable performance, and their flame-retardant effect is greatly reduced in actual fire scenes, easily causing the cables to burn in a short time, resulting in serious damage to power facilities. In addition, some power cables have inferior internal materials. Although they can achieve the purpose of flame retardancy in actual fire scenes, they release a large amount of toxic gases during the flame retardant process, affecting the health of people living and working in the area, causing serious environmental pollution, and greatly increasing the cost of subsequent repairs. Summary of the Invention

[0004] To address the technical problems of unstable performance, insufficient flame retardant efficiency, and environmental pollution caused by the generation of toxic gases during combustion of existing power cables, this invention provides a flame-retardant and fire-resistant environmentally friendly power cable.

[0005] The technical solutions provided by the embodiments of the present invention are as follows: An embodiment of the present invention provides a flame-retardant and fire-resistant environmentally friendly power cable, comprising: a cable body, wherein a base is provided below the cable body; A fire extinguishing component is provided at the top of one side of the base, which is used to extinguish flames at the fire scene. A protective component is provided at the top of the other side of the base, which is used to protect the fire extinguishing component; The inner side of the cable body is provided with a flame-retardant component, which is used to protect the internal conductors and prevent open flame attack.

[0006] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this invention, a graded active fire suppression system is set up. The high-pressure inner cylinder of the first-stage fire suppression system releases inert gas to dilute the surrounding oxygen concentration, achieving pollution-free gas fire suppression. When the inert gas extinguishing effect is insufficient, the water mist system of the second-stage fire suppression system is activated to cool the cable surface and extinguish open flames, improving fire suppression efficiency. Intelligent control of the solenoid valve enables on-demand allocation of fire suppression resources, while simultaneously achieving early fire identification and graded response, avoiding waste and improving system reliability. Furthermore, a low-melting-point alloy rope and torsion spring structure automatically melt and break under high-temperature conditions, opening the protective cover and ensuring the safety of the fire suppression nozzles. Timely exposure and operation prevent nozzle pressure or blockage, extending equipment life. When flames reach the cable, ceramicized silicone rubber wrapping tape is sintered at high temperature to form a ceramic shell, creating a robust fire barrier. Then, hexagonal prism thermally responsive gel matrix strips melt at high temperature and mix with inert gas released from ruptured microcapsules to form an oxygen-isolated carbonized layer that protects the conductor. At the same time, the microcapsules contain inert gas that breaks upon heating, achieving a "self-extinguishing" function. Meanwhile, basalt fiber braided tape provides honeycomb structure support and high-temperature protection, improving the protection efficiency of the cable's internal materials and enhancing mechanical strength. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a frontal three-dimensional structural diagram of a flame-retardant and fire-resistant environmentally friendly power cable provided in an embodiment of the present invention.

[0009] Figure 2 This is a three-dimensional structural diagram of the unfolded front view of a flame-retardant and fire-resistant environmentally friendly power cable provided in an embodiment of the present invention.

[0010] Figure 3 This is a three-dimensional cross-sectional view of a flame-retardant component for a flame-retardant and fire-resistant environmentally friendly power cable, provided as an embodiment of the present invention.

[0011] Figure 4 This is a three-dimensional structural diagram of a flame-retardant and fire-resistant environmentally friendly power cable protection component provided in an embodiment of the present invention.

[0012] Figure 5 This is a three-dimensional structural diagram of a flame-retardant and fire-resistant environmentally friendly power cable protection component provided in an embodiment of the present invention.

[0013] Figure 6This is a three-dimensional structural diagram of a flame-retardant and fire-resistant environmentally friendly power cable fire extinguishing component provided in an embodiment of the present invention.

[0014] Figure 7 This is a partial cross-sectional three-dimensional structural diagram of a flame-retardant and fire-resistant environmentally friendly power cable fire extinguishing component provided in an embodiment of the present invention.

[0015] Figure 8 This is a three-dimensional structural diagram of a flame-retardant and fire-resistant environmentally friendly power cable fire extinguishing component provided in an embodiment of the present invention.

[0016] Reference numerals: 1. Cable body; 2. Base; 3. Fire extinguishing assembly; 301. High-pressure outer liner; 302. First solenoid valve; 303. L-shaped tube; 304. Liquid guide tube; 305. Ring tube; 306. First high-pressure nozzle; 307. High-pressure inner liner; 308. Second solenoid valve; 309. Gas guide tube; 310. Second high-pressure nozzle; 311. Fixing frame; 4. Protective assembly; 401. Ring sleeve; 402. Protective cover; 403. Torsion spring; 404. Low melting point alloy rope; 5. Flame retardant assembly; 501. Ceramicized silicone rubber wrapping tape; 502. Basalt fiber braided tape; 503. Aluminum-plastic composite film layer; 504. Foamed polyolefin insulation layer; 505. Hexagonal prism thermally responsive gel matrix strip; 506. Microcapsule; 507. Insulating filling layer; 6. Smoke detector; 7. Carbon monoxide concentration monitor; 8. Open flame detector.

[0017] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0018] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0019] like Figures 1 to 8 As shown, an embodiment of the present invention provides a flame-retardant and fire-resistant environmentally friendly power cable, including: a cable body 1, and a base 2 disposed below the cable body 1.

[0020] A fire extinguishing component 3 is provided at the top of one side of the base 2. The fire extinguishing component 3 is used to extinguish the flames at the fire scene.

[0021] A protective component 4 is provided at the top of the other side of the base 2, which is used to protect the fire extinguishing component 3.

[0022] The inner side of the cable body 1 is provided with a flame-retardant component 5, which is used to protect the internal conductors and prevent open flame attack.

[0023] It should be noted that the outermost protective sheath of the cable body 1 of this invention is wrapped around the outer layer of ceramicized silicone rubber wrapping tape 501, which protects the inner material during installation or dragging. The fire extinguishing component 3 is divided into an inert gas fire extinguishing system and a water mist fire extinguishing system. The inert gas system is the primary fire extinguishing system, which extinguishes the flame by diluting the oxygen in the air and reducing the oxygen concentration. The water mist secondary fire extinguishing system cools the cable surface by spraying water mist around the cable surface, and at the same time directly extinguishes the flame.

[0024] In one possible implementation, the fire extinguishing assembly 3 includes a high-pressure outer liner 301, a first solenoid valve 302, an L-shaped tube 303, a liquid guide tube 304, an annular tube 305, a first high-pressure nozzle 306, a high-pressure inner liner 307, a second solenoid valve 308, a gas guide tube 309, a second high-pressure nozzle 310, and a fixing frame 311.

[0025] The top of the base 2 is fixedly connected to two mounting seats, which are symmetrical and fixedly connected to each other. The top of each of the two mounting seats is fixedly connected to a high-pressure outer liner bottle 301. A fixing bracket 311 is fixedly connected between the two high-pressure outer liner bottles 301. A first solenoid valve 302 is installed on one side of each of the two high-pressure outer liner bottles 301. An L-shaped tube 303 is provided at the bottom of the inside of each of the two high-pressure outer liner bottles 301. Both of the L-shaped tubes 303 are connected to the liquid inlet of the first solenoid valve 302.

[0026] It should be noted that the high-pressure outer liner bottle 301 and the high-pressure inner liner bottle 307 are combined into a nested structure. The inner high-pressure inner liner bottle 307 is used to store inert gas, and the outer high-pressure outer liner bottle 301 is used to store high-pressure nitrogen and water. The upper layer is high-pressure nitrogen and the lower layer is water. When the first solenoid valve 302 is opened, the high-pressure nitrogen pressurizes the water and forces the water into the L-shaped tube 303. A limit sleeve is fixedly connected in the middle position of the fixing bracket 311 to position the gas guide tube 309 and improve the stability of the gas guide tube 309.

[0027] In one possible implementation, the outlets of the two first solenoid valves 302 are connected to liquid guide pipes 304, and the other ends of the two liquid guide pipes 304 are connected to an annular pipe 305. The interior of the annular pipe 305 is connected to a plurality of first high-pressure nozzles 306, and the plurality of first high-pressure nozzles 306 are arranged in a ring array at the other end of the annular pipe 305.

[0028] It should be noted that the bottom end of the L-shaped tube 303 is located inside the bottom end of the high-pressure outer liner bottle 301, very close to the bottom end of the high-pressure outer liner bottle 301, but in contact with the bottom end of the high-pressure outer liner bottle 301. Water is forced into the L-shaped tube 303 by high-pressure nitrogen gas. At the same time, the bottom end of the L-shaped tube 303 is close to the bottom of the bottle to prevent nitrogen gas from being discharged before water, ensuring that water is discharged first, and minimizing residue. Several first high-pressure nozzles 306 are arranged in a circle around the cable body 1. When the flame is burning, they can accurately spray water mist onto the surface of the cable body 1, extinguishing the fire on the surface of the cable body 1 while cooling it, avoiding waste caused by excessive spraying area.

[0029] In one possible implementation, a high-pressure inner bottle 307 is fixedly connected to the inner top of each of the two high-pressure outer bottles 301. A second solenoid valve 308 is installed at the top of each of the two high-pressure inner bottles 307. The outlets of the two second solenoid valves 308 are connected to air guide pipes 309. The other end of each of the two air guide pipes 309 is connected to a second high-pressure nozzle 310.

[0030] It should be noted that both the first solenoid valve 302 and the second solenoid valve 308 are intelligently controlled. Both are connected to the smoke detector 6, the carbon monoxide concentration monitor 7, and the open flame detector 8 via electrical signals. Through program settings, the second solenoid valve 308 is opened first. If the second solenoid valve 308 is opened, the inert gas extinguishes the flame and the open flame stops, so the first solenoid valve 302 does not need to be opened. If the open flame still exists and the carbon monoxide concentration continues to rise, the second solenoid valve 308 is opened to extinguish the fire. This tiered treatment helps to maximize resource utilization and provides sufficient time for the low-melting-point alloy rope 404 to melt.

[0031] In one possible implementation, the protective component 4 includes an annular sleeve 401, a protective cover 402, a torsion spring 403, and a low-melting-point alloy rope 404.

[0032] The cable body 1 is provided with an annular sleeve 401 on the outside. The annular sleeve 401 is fixedly connected to the top outer wall of the base 2. Protective covers 402 are symmetrically hinged at both ends of one side of the annular sleeve 401. Torsion springs 403 are respectively installed at the hinge points of the two protective covers 402 and the annular sleeve 401.

[0033] It should be noted that the protective cover 402 is equipped with a buffer pad inside, which is used to isolate the protective cover 402 from the first high-pressure nozzle 306, to prevent the first high-pressure nozzle 306 from being excessively squeezed, and to protect the first high-pressure nozzle 306, while also preventing the nozzle of the first high-pressure nozzle 306 from being blocked, thus affecting the water mist spraying efficiency.

[0034] In one possible implementation, a low-melting-point alloy rope 404 is fixedly connected to the top of each of the two protective covers 402, and the other end of each of the two low-melting-point alloy ropes 404 is fixedly connected to the fixing frame 311.

[0035] It should be noted that the low-melting-point alloy rope 404 is an alloy with a low melting point. It will automatically melt and break under the high temperature at the fire scene. Normal temperature does not affect the use of the low-melting-point alloy rope 404. Furthermore, a rotating shaft is installed at the hinge of the protective cover 402 and the annular sleeve 401. A torsion spring 403 is sleeved on the outside of the rotating shaft. The two feet of the torsion spring 403 rest against the limiting seats of the annular sleeve 401 and the protective cover 402, respectively. When the protective cover 402 and the annular sleeve 401 are closed together, the torsion spring 403 is in a compressed state. When the low-melting-point alloy rope 404 is melted, the torsion spring 403 loses the pressure of the low-melting-point alloy rope 404 and begins to return to its original state, driving the protective cover 402 to rotate, thereby opening the protective cover 402.

[0036] In one possible implementation, the flame-retardant component 5 includes a ceramicized silicone rubber wrapping tape 501, a basalt fiber braided tape 502, an aluminum-plastic composite film layer 503, a foamed polyolefin insulation layer 504, a hexagonal prism thermally responsive gel matrix strip 505, microcapsules 506, and an insulating filler layer 507.

[0037] The inner side of the cable body 1 is wrapped with ceramicized silicone rubber wrapping tape 501, the inner side of the ceramicized silicone rubber wrapping tape 501 is provided with basalt fiber braided tape 502, and the inner side of the basalt fiber braided tape 502 is wrapped with aluminum-plastic composite film layer 503.

[0038] It should be noted that the ceramicized silicone rubber wrapping tape 501 is wrapped around the outer layer to isolate external heat and moisture. The basalt fiber braided tape 502 has a honeycomb structure and acts as the internal skeleton to support the cable body 1, preventing damage to the internal material of the cable body 1 caused by external compression or impact. At the same time, the basalt fiber braided tape 502 has good flexibility and high temperature resistance, which can provide good protection for the cable body 1 material. The aluminum-plastic composite film layer 503 is used as a shielding layer, providing complete electromagnetic shielding function to protect internal signals from interference. At the same time, it has good moisture-proof effect, which can further prevent the internal material from being damaged by moisture.

[0039] In one possible implementation, a foamed polyolefin insulating layer 504 is provided on the inner side of the aluminum-plastic composite film layer 503, and a plurality of hexagonal prism thermally responsive gel matrix strips 505 are provided on the inner side of the foamed polyolefin insulating layer 504, and the plurality of hexagonal prism thermally responsive gel matrix strips 505 are arranged in a ring array on the inner side of the foamed polyolefin insulating layer 504.

[0040] In one possible implementation, each of the hexagonal prism thermally responsive gel matrix strips 505 has a plurality of microcapsules 506 bonded to its interior, and a plurality of insulating filling layers 507 are provided on its inner sides.

[0041] In one possible implementation, a smoke detector 6 is installed on one side of the base 2, an open flame detector 8 is installed on the other side of the base 2, and a carbon monoxide concentration monitor 7 is installed on the top of the base 2.

[0042] It should be noted that the expanded polyolefin insulation layer 504 is a relatively expandable foam with good cushioning properties, which can better protect the hexagonal prism thermally responsive gel matrix strip 505 and prevent it from being excessively compressed. At the same time, several small holes are formed through the expanded polyolefin insulation layer 504. These holes are used to ensure that heat can be transferred to the hexagonal prism thermally responsive gel matrix strip 505 in a timely manner at the fire scene, thereby ensuring that the microcapsules 506 have time to preheat, so that the microcapsules 506 can rupture in time and release inert gas. The space between the hexagonal prism thermally responsive gel matrix strip 505 and the wire is filled with an insulating filler layer 507 for further protection of the wire.

[0043] In summary, the flame-retardant and fire-resistant environmentally friendly power cable designed in this invention features a smoke detector 6 that detects smoke and issues an alarm in advance when a fire occurs. Simultaneously, the open flame detector 8 detects the presence of an open flame. At this point, the second solenoid valve 308 is opened, and the inert gas inside the high-pressure inner liner 307 is introduced into the gas guide pipe 309 through the gas guide port of the second solenoid valve 308. The inert gas is then introduced into the second high-pressure nozzle 310 through the gas guide pipe 309, and finally sprayed out by the second high-pressure nozzle 310 to purify the oxygen in the affected area. The process dilutes the oxygen concentration, thereby extinguishing the fire. Simultaneously, the temperature in the area is significantly higher than normal, causing the low-melting-point alloy rope 404 to melt and break. The protective cover 402 opens under the force of the torsion spring 403, exposing the first high-pressure nozzle 306 to the air. If the open flame detector 8 still detects an open flame, and the carbon monoxide concentration monitor 7 detects that the carbon monoxide concentration has not decreased or is still increasing, the first solenoid valve 302 opens, and simultaneously, the high-pressure outer cylinder 301... Nitrogen gas in the part of the tube compresses the water, causing it to enter the inner side of the L-shaped tube 303. The water then flows through the outlet of the first solenoid valve 302 into the annular tube 305, where it is dispersed and directed into the first high-pressure nozzle 306. The first high-pressure nozzle 306 then sprays out water mist, extinguishing the flames around the cable body 1 and simultaneously cooling the cable body 1 itself. If the fire is severe and reaches the cable body 1, the hexagonal thermally responsive gel matrix strip 505 will be affected by the high temperature. The process begins with melting, and simultaneously, the microcapsule 506 ruptures under high temperature, releasing inert gas. The inert gas disperses into the air through the burned area, diluting the oxygen in the air. At the same time, the hexagonal prism thermally responsive gel matrix strip 505 melts and mixes with the fragments of the ruptured microcapsule 506, covering the surface of the wire and forming a carbonized layer that isolates oxygen, thus protecting the wire. Meanwhile, the outer ceramicized silicone rubber wrapping tape 501 forms a robust ceramic shell after being sintered in an open flame, wrapping around the outermost layer and forming the outermost fireproof barrier.

[0044] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this invention, a graded active fire suppression system is set up. The high-pressure inner cylinder of the first-stage fire suppression system releases inert gas to dilute the surrounding oxygen concentration, achieving pollution-free gas fire suppression. When the inert gas extinguishing effect is insufficient, the water mist system of the second-stage fire suppression system is activated to cool the cable surface and extinguish open flames, improving fire suppression efficiency. Intelligent control of the solenoid valve enables on-demand allocation of fire suppression resources, while simultaneously achieving early fire identification and graded response, avoiding waste and improving system reliability. Furthermore, a low-melting-point alloy rope and torsion spring structure automatically melt and break under high-temperature conditions, opening the protective cover and ensuring the safety of the fire suppression nozzles. Timely exposure and operation prevent nozzle pressure or blockage, extending equipment life. When flames reach the cable, ceramicized silicone rubber wrapping tape is sintered at high temperature to form a ceramic shell, creating a robust fire barrier. Then, hexagonal prism thermally responsive gel matrix strips melt at high temperature and mix with inert gas released from ruptured microcapsules to form an oxygen-isolated carbonized layer that protects the conductor. At the same time, the microcapsules contain inert gas that breaks upon heating, achieving a "self-extinguishing" function. Meanwhile, basalt fiber braided tape provides honeycomb structure support and high-temperature protection, improving the protection efficiency of the cable's internal materials and enhancing mechanical strength.

[0045] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0046] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An environmentally friendly fire-retardant fireproof power cable, characterized in that, include: The cable body has a base located below it; A fire extinguishing component is provided at the top of one side of the base, which is used to extinguish flames at the fire scene. A protective component is provided at the top of the other side of the base, which is used to protect the fire extinguishing component; The inner side of the cable body is provided with a flame-retardant component, which is used to protect the internal conductors and prevent open flame attack.

2. The flame and fire retardant environment friendly power cable as claimed in claim 1, wherein, The fire extinguishing assembly includes a high-pressure outer liner, a first solenoid valve, an L-shaped tube, a liquid guide tube, a ring tube, a first high-pressure nozzle, a high-pressure inner liner, a second solenoid valve, a gas guide tube, a second high-pressure nozzle, and a mounting bracket. The top of the base is fixedly connected to two mounting seats, which are symmetrical and fixedly connected to each other. A high-pressure outer liner bottle is fixedly connected to the top of each of the two mounting seats. A fixing frame is fixedly connected between the two high-pressure outer liner bottles. A first solenoid valve is installed on one side of each of the two high-pressure outer liner bottles. An L-shaped tube is provided at the bottom of the inside of each of the two high-pressure outer liner bottles. Both of the L-shaped tubes are connected to the liquid inlet of the first solenoid valve.

3. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 2, characterized in that, Both of the first solenoid valves have liquid outlets connected to liquid guide tubes, and the other ends of the two liquid guide tubes are connected to an annular tube. The annular tube contains a plurality of first high-pressure nozzles, which are arranged in a ring array at the other end of the annular tube.

4. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 3, characterized in that, Each of the two high-pressure outer liner bottles is fixedly connected to a high-pressure inner liner bottle at its inner top. Each of the two high-pressure inner liner bottles is equipped with a second solenoid valve at its top. The outlets of the two second solenoid valves are connected to air guide pipes, and the other ends of the two air guide pipes are connected to second high-pressure nozzles.

5. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 4, characterized in that, The protective assembly includes a ring sleeve, a protective cover, a torsion spring, and a low-melting-point alloy rope; The cable body is provided with an annular sleeve on the outside. The annular sleeve is fixedly connected to the top outer wall of the base. Protective covers are symmetrically hinged at both ends of one side of the annular sleeve. Torsion springs are installed at the hinge points of the two protective covers and the annular sleeve.

6. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 5, characterized in that, Both protective covers are fixedly connected to the top of a low-melting-point alloy rope, and the other end of both low-melting-point alloy ropes is fixedly connected to a fixing frame.

7. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 1, characterized in that, The flame-retardant component includes a ceramicized silicone rubber wrapping tape, a basalt fiber woven tape, an aluminum-plastic composite film layer, a foamed polyolefin insulation layer, a hexagonal prism thermally responsive gel matrix strip, microcapsules, and an insulating filler layer. The inner side of the cable body is wrapped with ceramicized silicone rubber wrapping tape, the inner side of the ceramicized silicone rubber wrapping tape is provided with basalt fiber braided tape, and the inner side of the basalt fiber braided tape is wrapped with an aluminum-plastic composite film layer.

8. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 7, characterized in that, The inner side of the aluminum-plastic composite film layer is provided with a foamed polyolefin insulation layer, and the inner side of the foamed polyolefin insulation layer is provided with a plurality of hexagonal prism thermally responsive gel matrix strips, which are arranged in a ring array on the inner side of the foamed polyolefin insulation layer.

9. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 8, characterized in that, Each of the hexagonal prism thermally responsive gel matrix strips has several microcapsules bonded inside, and several inner sides are provided with insulating filling layers.

10. The flame-retardant and fire-resistant environmentally friendly power cable according to claim 1, characterized in that, A smoke detector is installed on one side of the base, an open flame detector is installed on the other side of the base, and a carbon monoxide concentration monitor is installed on the top of the base.

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