An intelligent cable based on dynamic monitoring information feedback and a preparation method thereof

Abstract

The application relates to the technical field of intelligent cables, and discloses an intelligent cable based on dynamic monitoring information feedback and a preparation method thereof. The intelligent cable comprises an insulating wire core, a coaxial corrugated aluminum sleeve and an anti-abrasion layer are arranged on the circumferential side of the insulating wire core, an accommodating area is formed in the insulating wire core, a temperature measuring optical fiber is arranged in the accommodating area, and the temperature measuring optical fiber is wrapped on the outer side of a separated conductor structure. The insulating wire core comprises the separated conductor structure, the separated conductor structure is composed of a flat cable core and a plurality of cable strands which are uniformly wound outside the cable core, and the plurality of cable strands are arranged on the cable core in a spiral track. The arrangement position of the temperature measuring optical fiber is optimized, the temperature measuring optical fiber is arranged away from the corrugated aluminum sleeve, and is arranged in a fan-shaped accommodating area formed between the spiral cable strands, so that the tensile stress and the compressive stress of the temperature measuring optical fiber are minimized when the cable is bent, and the temperature measuring optical fiber can be effectively prevented from being directly attached to the inner side of the aluminum sleeve and being damaged under pressure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent cables, more particularly, it relates to an intelligent cable based on dynamic monitoring information feedback and a preparation method thereof. BACKGROUND

[0002] 220kV cross-linked polyethylene (XLPE) insulation corrugated aluminum jacket power cable is currently widely used in high-voltage power tunnel cable, cross-sea or long-distance power transmission line wind power, rail transit and other key power supply system fields, by combining power cable with optical fiber sensing technology to form intelligent cable, the intelligent cable uses optical fiber as sensing medium, through measuring the change of optical signal, the environment parameters around the cable can be detected, distributed optical fiber sensing technology can provide continuous monitoring data along the entire cable length, which is particularly useful for long-distance power transmission cable, and can provide protection for the safe and stable operation of the power grid;

[0003] However, the temperature measurement sensing optical fiber arranged in the axial direction in the 220kV cross-linked polyethylene (XLPE) insulation corrugated aluminum jacket power cable will bring mechanical risk to the temperature measurement optical fiber due to the structural characteristics of the corrugated aluminum jacket, especially when the cable is bent, the risk of the temperature measurement optical fiber being squeezed, excessively bent or even broken is greatly increased, the reason is that the corrugated aluminum jacket is made by forming corrugations (extruding annular or spiral grooves) after longitudinal wrapping of the aluminum strip, when bending, the inside is compressed and the outside is stretched, local deformation occurs between the valleys and peaks, and the temperature measurement optical fiber is usually arranged on the inside surface of the aluminum jacket (close to the insulation shielding layer) or between the aluminum jacket and the outer sheath, when the cable is bent, the valleys of the corrugated aluminum jacket are compressed, the space becomes smaller, and the temperature measurement optical fiber inside or in the gap is squeezed, and the temperature measurement optical fiber itself is highly brittle and extremely sensitive to lateral squeezing, micro-bending and twisting. SUMMARY

[0004] The present application provides an intelligent cable based on dynamic monitoring information feedback and a preparation method thereof, which solves the technical problem that the temperature measurement optical fiber in the intelligent power cable containing the corrugated aluminum jacket is easily squeezed when the cable is bent, and the optical fiber is damaged, affecting the cable monitoring information feedback.

[0005] The present application provides an intelligent cable based on dynamic monitoring information feedback, which comprises an insulation core, a coaxial corrugated aluminum jacket and an anti-abrasion layer are arranged on the circumferential side of the insulation core, a containing area is formed in the insulation core, a temperature measurement optical fiber is arranged in the containing area, and the temperature measurement optical fiber is covered on the outside of a separated conductor structure.

[0006] The insulation core comprises a separated conductor structure, which is composed of a straight cable core and a plurality of cable strands uniformly wound outside the cable core, and the plurality of cable strands are arranged on the cable core in a spiral track.

[0007] In a preferred embodiment, the temperature measuring fiber extends along the axial direction of the insulated core in a spiral trajectory, the center line of the spiral trajectory of the temperature measuring fiber is coaxial with the axis of the insulated core, and the spiral trajectory of the temperature measuring fiber is consistent with the spiral trajectory of the cable strand. The cross section of the cable strand is fan-shaped, and gaps are formed between adjacent cable strands of the plurality of cable strands. The plurality of gaps form an accommodation area, the temperature measuring fiber is located in the accommodation area and separates the plurality of cable strands, and a plurality of filling strips are arranged in the plurality of gaps. The filling strip wraps the temperature measuring fiber and isolates the temperature measuring fiber from the separated conductor structure.

[0008] In a preferred embodiment, the insulated core further comprises a conductor shielding layer one, a VCV main insulation layer and an insulation shielding layer one, and the conductor shielding layer one, the VCV main insulation layer and the insulation shielding layer one are sequentially arranged on the circumferential side of the separated conductor structure from inside to outside.

[0009] In a preferred embodiment, a plurality of insulated cores are provided, and the plurality of insulated cores are arranged symmetrically at the center of the intelligent cable. A plurality of gaps in the form of a fan-shaped gap are formed between the insulated core and the plastic reinforced protective layer, the gap forms an accommodation area, the accommodation area is filled with a filling strip, the filling strip is provided with a placement hole, the temperature measuring fiber is placed in the placement hole, and a gap is left between the outer wall of the temperature measuring fiber and the inner wall of the placement hole. The axis of the placement hole is arranged in parallel with the axis of the separated conductor structure, and the temperature measuring fiber is arranged in parallel with the separated conductor structure.

[0010] In a preferred embodiment, the circumferential side of the insulated core is sleeved with a plastic reinforced protective layer, and the circumferential side of the plastic reinforced protective layer is sequentially provided with a cable bundling belt, a conductor shielding layer two and an insulation shielding layer two from inside to outside. The corrugated aluminum sleeve and the wear-resistant layer are sequentially arranged on the circumferential side of the insulation shielding layer two. After the aluminum strip is welded and sealed by the argon arc welding double welding gun welding process, the flat aluminum sleeve is rolled into a corrugated structure by a rolling machine. The wear-resistant layer forms a sealing sleeve structure by extrusion coating process outside the corrugated aluminum sleeve.

[0011] In a preferred embodiment, the filling strip is composed of one or more of a polyester tape, a sponge layer and a thermoplastic elastomer protective layer.

[0012] A preparation method of an intelligent cable based on dynamic monitoring information feedback, comprising the following steps:

[0013] Step one, the copper rod is drawn into a single wire of a desired diameter by a wire drawing machine, and a plurality of single wires are twisted together in a spiral trajectory to form a separated conductor structure. A layer of semi-conductive nylon belt is wrapped around the formed separated conductor structure;

[0014] Step two, the separator conductor structure wrapped with semi-conductive nylon belt passes through the VCV production line, three layers of materials are extruded through a die head at the same time, and conductor shielding layer one, VCV main insulation layer and insulation shielding layer one are sequentially prepared from inside to outside, forming an insulated wire core;

[0015] Step three, the insulated wire core is slowly cooled and wound on a wire reel, and the wrapped wire core is placed in a constant temperature degassing chamber for a period of time;

[0016] Step four, semi-conductive water-blocking tape is wrapped outside the degassed insulated wire core;

[0017] Step five, the aluminum tape is longitudinally wrapped on the insulated wire core wrapped with semi-conductive water-blocking tape, and after welding and sealing, the flat aluminum sleeve is rolled into a corrugated structure by a texturing machine to form a corrugated aluminum sleeve;

[0018] Step six, a polyethylene wear-resistant layer is extruded and coated outside the corrugated aluminum sleeve.

[0019] In a preferred embodiment, in step four, a plastic reinforced protective layer is prepared on the insulated wire core by the VCV production line again, and cable binding tape, conductor shielding layer two and insulation shielding layer two are sequentially wrapped to form a cable core.

[0020] In a preferred embodiment, in step five, the aluminum tape is welded by using argon arc welding double welding gun welding process.

[0021] In a preferred embodiment, a fire-retardant layer is further arranged in the intelligent cable, the fire-retardant layer is a fireproof mud layer or a fire-retardant layer made of glass fiber tape, and is arranged outside the insulated wire core wrapped with semi-conductive water-blocking tape.

[0022] The beneficial effects of the present application are:

[0023] 1. By optimizing the arrangement position of the temperature measuring optical fiber, the temperature measuring optical fiber is arranged away from the corrugated aluminum sleeve, in the fan-shaped accommodation area formed between the spiral cable strands, and near the neutral layer of the entire cable, so that the tensile stress of the temperature measuring optical fiber is minimized when the cable is bent, and the temperature measuring optical fiber can be effectively prevented from being directly attached to the inner side of the aluminum sleeve and being damaged under pressure;

[0024] 2、The application prolongs the laying length of the temperature measuring optical fiber in the cable, disperses the bending stress of the temperature measuring optical fiber when the cable is bent, and increases the deformable allowance of the temperature measuring optical fiber, thereby avoiding axial tension or compression, and better adapting to the stretching and bending deformation of the cable, in addition, the accommodating area of the spiral track formed between the cable strands of the spiral design can exactly meet the accommodation requirement of the temperature measuring optical fiber, and the spiral arranged temperature measuring optical fiber can also increase its contact area with the cable without changing the original external structure of the cable, so that the monitoring result is more accurate, and the risk performance of the temperature measuring optical fiber against the stretching and bending of the cable is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a cable structure stereogram of the single strand cable core of the application;

[0026] Figure 2 is a cable structure cross section schematic diagram of the single strand cable core of the application;

[0027] Figure 3 is a schematic diagram of the separated conductor structure of the application;

[0028] Figure 4 is a schematic diagram of the separated conductor structure of the application forming an accommodating area;

[0029] Figure 5 is a schematic diagram of the separated conductor structure and the placement position of the temperature measuring optical fiber of the application;

[0030] Figure 6 is a cable strand structure schematic diagram of the application;

[0031] Figure 7 is a top view of the separated conductor structure of the application;

[0032] Figure 8 is a cable structure stereogram of the multiple strand cable core of the application;

[0033] Figure 9 is a cable structure cross section schematic diagram of the multiple strand cable core of the application;

[0034] Figure 10 is a schematic diagram of the separated conductor structure and the temperature measuring optical fiber of the application;

[0035] Figure 11 is a flow chart of the cable preparation method of the application.

[0036] In the figure: 1, insulated core; 11, separated conductor structure; 111, cable core; 112, cable strand; 12, conductor shielding layer one; 13, VCV main insulation layer; 14, insulation shielding layer one; 2, plastic reinforced protective layer; 3, cabling binding tape; 4, conductor shielding layer two; 5, insulation shielding layer two; 6, corrugated aluminum sleeve; 7, wear-resistant layer; 8, temperature measuring optical fiber; 9, filler strip; 91, placement hole; 100, containing area. DETAILED DESCRIPTION

[0037] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that discussions of these implementations are merely provided to enable those skilled in the art to better understand so as to be able to implement the subject matter described herein, and variations of elements discussed can be made by one skilled in the art, without departing from the scope of the present specification. Various examples can omit, substitute, or add various procedures or components as appropriate, and the methods described can not require the particular order described, where appropriate. Also, features described with respect to some examples can be combined in other examples.

[0038] Example 1, as shown, an intelligent cable based on dynamic monitoring information feedback, comprising an insulated core 1, the circumferential side of the insulated core 1 is provided with a coaxial corrugated aluminum sleeve 6 and a wear-resistant layer 7, the insulated core 1 forms a containing area 100, the containing area 100 is arranged with a temperature measuring optical fiber 8 (as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 in combination), the temperature measuring optical fiber 8 is wrapped on the outside of the separated conductor structure 11;

[0039] The insulated core 1 comprises a separated conductor structure 11, the separated conductor structure 11 is composed of a flat cable core 111 and a plurality of cable strands 112 uniformly wound outside the cable core 111, the plurality of cable strands 112 are arranged in a spiral track on the cable core 111;

[0040] The flat cable core 111 is located at the center of the separated conductor structure 11, which is composed of a plurality of single core wires, the cable strands 112 are spirally wound by a plurality of core wires, and the plurality of cable strands 112 are distributed in a circumferential manner on the circumferential side of the cable core 111, forming the separated conductor structure 11, reducing the skin effect.

[0041] It should be noted that the temperature measuring optical fiber 8 is laid along the whole length of the intelligent cable, and continuous temperature monitoring from the starting point to the ending point of the intelligent cable can be realized, the precision can reach per meter or even smaller interval, the blind area of the traditional point type sensor is avoided, the system can set the sampling frequency, for example, collecting once per second or once per minute, the temperature data of each section of the cable is obtained in real time, and the data is transmitted to the monitoring center through a communication network (such as Ethernet, 4G / 5G), real-time early warning is realized, when the ambient temperature of the cable increases (such as high temperature in summer, poor ventilation of the tunnel, adjacent heat source), the temperature measuring optical fiber can perceive the temperature change in the first time, when the local overheating caused by cable overload or local poor contact is encountered, the local overheating will also be shown as a "hot spot" in the temperature measuring graph of the temperature measuring optical fiber, so that the fault point of the cable can be quickly located;

[0042] The temperature measuring optical fiber of the present application represents the optical fiber temperature measuring unit, not only refers to the temperature measuring optical fiber, but also should be considered to include a series of components for realizing cable temperature measurement, such as multimode optical fiber or grating optical fiber, in the present application, only the temperature measuring optical fiber arranged in the cable is taken as an example to represent a simple description of the cable sensing technology;

[0043] The present application embeds the temperature measuring sensing optical fiber into the cable structure, and then combines with the DTS technology, so that the system can realize real-time, continuous and accurate acquisition of the temperature distribution of the whole cable, thereby effectively monitoring the influence of the environment and the running state on the cable, and realizing early fault warning and intelligent operation and maintenance.

[0044] As shown in Figure 10 , the temperature measuring optical fiber 8 extends along the axial direction of the insulated core 1 in a spiral trajectory, the center line of the spiral trajectory of the temperature measuring optical fiber 8 is coaxial with the axis of the insulated core 1, and the spiral trajectory of the temperature measuring optical fiber 8 is consistent with the spiral trajectory of the cable strand 112, the cross section of the cable strand 112 is approximately fan-shaped (as shown in Figure 2 ), and the cross section of the cable strand 112 can also be approximately circular (as shown in Figure 6 and Figure 7 ), gaps are formed between the adjacent two of the plurality of cable strands 112, the plurality of gaps form an accommodation area 100, the temperature measuring optical fiber 8 is located in the accommodation area 100 and separates the plurality of cable strands 112, and the filling strips 9 are arranged in the plurality of gaps, the filling strips 9 wrap the temperature measuring optical fiber 8 and insulate the temperature measuring optical fiber 8 from the separated conductor structure 11.

[0045] As shown in Figure 5 , the insulated core 1 further comprises a conductor shielding layer one 12, a VCV main insulation layer 13 and an insulation shielding layer one 14, and the conductor shielding layer one 12, the VCV main insulation layer 13 and the insulation shielding layer one 14 are sequentially arranged on the circumferential side of the separated conductor structure 11 from inside to outside.

[0046] In the present application, by optimizing the arrangement position of the temperature measuring optical fiber 8, the temperature measuring optical fiber 8 is placed away from the corrugated aluminum jacket 6 and in the fan-shaped accommodation area 100 formed between the spiral cable strands 112 and near the neutral layer of the entire cable, so that the tensile stress on the temperature measuring optical fiber 8 is minimized when the cable is bent, and the temperature measuring optical fiber 8 can be effectively prevented from being directly attached to the inside of the aluminum jacket and being damaged by pressure;

[0047] In the present application, by arranging the soft and elastic filling strip 9 in the accommodation area 100, the filling strip 9 wraps the temperature measuring optical fiber 8 and absorbs the local pressure when the cable is bent, preventing the aluminum jacket from directly pressing the optical fiber;

[0048] In the present application, by winding the temperature measuring optical fiber 8 in a small pitch spiral manner in the fan-shaped accommodation area 100 formed between the spiral cable strands 112, the laying length of the temperature measuring optical fiber 8 in the cable is extended, the bending stress of the temperature measuring optical fiber 8 is dispersed when the cable is bent, and the deformability of the temperature measuring optical fiber 8 is increased, thereby avoiding axial tension or compression, better adapting to the expansion and bending deformation of the cable, in addition, the spiral track accommodation area 100 formed between the spiral cable strands 112 can exactly meet the accommodation requirements of the temperature measuring optical fiber 8, without changing the original external structure of the cable (for example, the appearance of the cable is still round, and the addition of the temperature measuring optical fiber 8 will not cause some protrusions on the surface of the cable), at the same time, the spiral arrangement of the temperature measuring optical fiber not only increases its contact area with the cable, making the monitoring result more accurate, but also increases the risk performance of the temperature measuring optical fiber 8 against cable expansion and bending.

[0049] In embodiment 2, an intelligent cable based on dynamic monitoring information feedback is provided, which includes a plurality of insulated cores 1 arranged symmetrically in the center of the intelligent cable, a plurality of gaps in the shape of a fan are formed between the insulated cores 1 and the plastic reinforced protective layer 2, the gaps form an accommodation area 100, the accommodation area 100 is filled with a filling strip 9, the filling strip 9 is provided with a placement hole 91, a temperature measuring optical fiber 8 is placed in the placement hole 91, and a gap is left between the outer wall of the temperature measuring optical fiber 8 and the inner wall of the placement hole 91, the axis of the placement hole 91 is arranged in parallel with the axis of the separated conductor structure 11, the circumferential side of the insulated core 1 is provided with a coaxial corrugated aluminum jacket 6 and an anti-abrasion layer 7, the insulated core 1 is formed with an accommodation area 100, the temperature measuring optical fiber 8 is arranged in the accommodation area 100 (as shown in Figure 8 and Figure 9 The temperature measuring optical fiber 8 is wrapped outside the separated conductor structure 11;

[0050] In embodiment 2, the insulated core 1 includes a separated conductor structure 11, which can be composed of a flat cable core 111 and a plurality of cable strands 112 uniformly wound outside the cable core 111 in a spiral track (the core can have the same structure as that in embodiment 1, or only a single cable strand can be combined and wound or not wound);

[0051] As shown in Figure 8 and Figure 9 , the circumferential side of the insulated core 1 is sleeved with a plastic reinforced protective layer 2, the circumferential side of the plastic reinforced protective layer 2 is sequentially provided with a cable binding belt 3, a conductor shielding layer two 4 and an insulation shielding layer two 5 from inside to outside, a corrugated aluminum sleeve 6 and an anti-abrasion layer 7 are sequentially provided on the circumferential side of the insulation shielding layer two 5, the corrugated aluminum sleeve 6 is welded and sealed by argon arc welding double welding gun welding process, then the flat aluminum sleeve is rolled into a corrugated structure by a rolling machine, and the anti-abrasion layer 7 is formed into a sealed sleeve structure by extrusion coating process outside the corrugated aluminum sleeve 6.

[0052] In an embodiment of the present application, the filling strip 9 is composed of one or more of a polyester tape, a sponge layer and a thermoplastic elastomer protective layer.

[0053] In the present application, by arranging a placement hole 91 with a larger diameter than the temperature measuring optical fiber 8 in the filling strip 9, the temperature measuring optical fiber 8 has a deformable margin when the cable is bent, thereby improving the anti-deformation ability of the temperature measuring optical fiber 8.

[0054] As shown in Figure 11 , a preparation method of an intelligent cable based on dynamic monitoring information feedback, comprising the following steps:

[0055] Step one, a copper rod is drawn into a single wire with a required diameter by a wire drawing machine, and a plurality of single wires are twisted together in a spiral track to form a separated conductor structure 11, and a semi-conductive nylon belt is wrapped around the formed separated conductor structure 11;

[0056] It should be noted that the separated conductor structure 11 can effectively increase the conductor surface area, reduce the skin effect, reduce the alternating current resistance and improve the transmission efficiency;

[0057] Step two, the separated conductor structure 11 wrapped with the semi-conductive nylon belt is passed through a VCV production line, and three layers of materials are extruded through one head at the same time to sequentially obtain a conductor shielding layer one 12 (semi-conductive XLPE), a VCV main insulation layer 13 (ultra-pure cross-linked polyethylene XLPE) and an insulation shielding layer one 14 (semi-conductive XLPE) from inside to outside, thereby forming an insulated core 1;

[0058] It should be noted that the role of this step is to smooth the conductor surface electric field, prevent partial discharge, and prepare for the subsequent extrusion process; Three-layer co-extrusion technology ensures that there is no gap and no interface defect between the layers, forming a perfect whole. The extruded core enters the VCV tower, where it completes the cross-linking (vulcanization) reaction in a high-temperature and high-pressure nitrogen environment, turning the thermoplastic polyethylene into a thermosetting cross-linked polyethylene, greatly improving its heat resistance and mechanical properties. During or after the cross-linking process, an online deviation instrument is used to monitor and adjust the concentricity of the insulation layer in real time, ensuring uniform insulation thickness and optimal core quality, and avoiding uneven electric field distribution caused by eccentricity.

[0059] Step three, slowly cool the insulated core 1 and wind it on the reel, then put the wrapped core into the constant-temperature degassing chamber for a period of time.

[0060] It should be noted that the purpose of degassing treatment is to remove by-products (such as methane and peroxide decomposition gas) generated during the cross-linking reaction to prevent these gases from causing excessive internal pressure or partial discharge in the cable during operation.

[0061] Step four, wrap the semi-conductive water-blocking tape outside the degassed insulated core 1, then pass it through the VCV production line to make the plastic reinforced protective layer 2 outside the degassed insulated core 1, and then wrap the cable tie, conductor shielding layer two and insulation shielding layer two 5 in sequence to form the cable core.

[0062] It should be noted that wrapping the semi-conductive water-blocking tape, cable tie, conductor shielding layer two, insulation shielding layer two, and extruding the protective layer through the VCV process are all to protect the insulated core from damage by the metal sheath. Once the metal sheath is damaged, the water-blocking tape will swell when it comes into contact with water, preventing water from spreading longitudinally along the cable.

[0063] Step five, longitudinally wrap the aluminum tape outside the cable core, use argon arc welding double welding gun welding process to weld the aluminum tape seam, and then use the texturing machine to roll the flat aluminum sleeve into a corrugated structure to form the corrugated aluminum sleeve 6.

[0064] It should be noted that the corrugated structure increases the flexibility and bendability of the cable.

[0065] Step six, extrude a layer of polyethylene wear-resistant layer 7 outside the corrugated aluminum sleeve 6.

[0066] It should be noted that the wear-resistant layer mainly plays the role of corrosion protection, mechanical damage prevention and chemical corrosion prevention; according to environmental needs, different formulations of corrosion-resistant coatings may be selected.

[0067] The intelligent cable also has a fire-retardant layer, which is a fire-retardant layer made of fireproof mud or glass fiber tape, wrapped outside the insulated core 1 with semi-conductive water-blocking tape.

[0068] The above describes the embodiments of the present embodiment, but the present embodiment is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the present embodiment, which all belong to the protection of the present embodiment.

Claims

1. An intelligent cable based on dynamic monitoring information feedback, characterized by, The application relates to an insulated wire core (1) which is provided with coaxial corrugated aluminum sleeves (6) and wear-resistant layers (7) on the circumferential side, and a containing area (100) is formed in the insulated wire core (1), a temperature measuring optical fiber (8) is arranged in the containing area (100), the temperature measuring optical fiber (8) is covered on the outer side of a separated conductor structure (11), the temperature measuring optical fiber (8) is combined with a DTS technology to form a distributed optical fiber sensing system, and the distributed optical fiber sensing system is used for monitoring the ambient temperature of the cable in real time. The insulated wire core (1) comprises the separated conductor structure (11) which is composed of a flat cable core (111) and a plurality of cable strands (112) which are uniformly wound on the outer side of the cable core (111), and the plurality of cable strands (112) are arranged on the cable core (111) in a spiral track. The temperature measuring optical fiber (8) extends along the axial direction of the insulated wire core (1) in a spiral track, the center line of the spiral track of the temperature measuring optical fiber (8) is coaxial with the axis of the insulated wire core (1), the spiral track of the temperature measuring optical fiber (8) is consistent with the spiral track of the cable strands (112), the cross section of the cable strands (112) is fan-shaped, a gap is formed between two adjacent cable strands (112) of the plurality of cable strands (112), a plurality of gaps form the containing area (100), the temperature measuring optical fiber (8) is located in the containing area (100) and separates the plurality of cable strands (112), and a filling strip (9) is arranged in each of the plurality of gaps, the filling strip (9) wraps the temperature measuring optical fiber (8) and insulates the temperature measuring optical fiber (8) from the separated conductor structure (11).

2. The intelligent cable based on dynamic monitoring information feedback according to claim 1, characterized in that, The insulated wire core (1) further comprises a conductor shielding layer one (12), a VCV main insulation layer (13) and an insulation shielding layer one (14), and the conductor shielding layer one (12), the VCV main insulation layer (13) and the insulation shielding layer one (14) are sequentially arranged on the circumferential side of the separated conductor structure (11) from inside to outside.

3. The intelligent cable based on dynamic monitoring information feedback according to claim 1, characterized in that, A plurality of the insulated wire cores (1) are symmetrically arranged in the center of the intelligent cable, a plurality of gaps in the shape of fans are formed between the insulated wire cores (1) and the plastic reinforced protective layer (2), the gaps form the containing area (100), the containing area (100) is filled with the filling strips (9), the placing holes (91) are formed in the filling strips (9), the temperature measuring optical fibers (8) are placed in the placing holes (91), a gap is left between the outer wall of the temperature measuring optical fiber (8) and the inner wall of the placing hole (91), the axis of the placing hole (91) is parallel to the axis of the separated conductor structure (11), and the temperature measuring optical fiber (8) is parallel to the separated conductor structure (11).

4. The intelligent cable based on dynamic monitoring information feedback according to claim 2 or 3, characterized in that, The circumference side of the insulated core (1) is sleeved with a plastic reinforced protective layer (2), the circumference side of the plastic reinforced protective layer (2) is sequentially provided with a cable binding belt (3), a conductor shielding layer two (4) and an insulation shielding layer two (5) from inside to outside, the wrinkle aluminum sleeve (6) and the wear-resistant layer (7) are sequentially arranged on the circumference side of the insulation shielding layer two (5), the wrinkle aluminum sleeve (6) is welded and sealed by using an argon arc welding double-welding-gun welding process to weld the aluminum belt seam, then the flat aluminum sleeve is rolled into a wrinkle structure by using a rolling machine, and the wear-resistant layer (7) is formed into a sealing sleeve structure by using an extrusion coating process outside the wrinkle aluminum sleeve (6).

5. The intelligent cable based on dynamic monitoring information feedback according to claim 4, characterized in that, The filling strip (9) is composed of one or more of a polyester belt, a sponge layer and a thermoplastic elastomer protective layer.

6. The method of claim 2, wherein the method further comprises: The method comprises the following steps: Step one, a copper rod is drawn into a single wire with a required diameter by using a wire drawing machine, a plurality of single wires are twisted together according to a specific spiral track to form a separated conductor structure (11), and a semi-conductive nylon belt is wrapped around the separated conductor structure (11) after being formed; Step two, the separated conductor structure (11) wrapped with the semi-conductive nylon belt is passed through a VCV production line, three layers of materials are extruded at the same time by using one head, the conductor shielding layer one (12), the VCV main insulation layer (13) and the insulation shielding layer one (14) are sequentially prepared from inside to outside, and the insulated core (1) is formed; Step three, the insulated core (1) is slowly cooled and wound on a reel, and the wrapped core is placed in a constant-temperature degassing chamber for a period of time; Step four, a semi-conductive water-blocking belt is wrapped around the insulated core (1) after being degassed; Step five, an aluminum belt is longitudinally wrapped on the insulated core (1) wrapped with the semi-conductive water-blocking belt, the aluminum belt is welded and sealed, then the flat aluminum sleeve is rolled into a wrinkle structure by using a rolling machine to form the wrinkle aluminum sleeve (6); Step six, a polyethylene wear-resistant layer (7) is extrusion coated outside the wrinkle aluminum sleeve (6).

7. The method of claim 6, wherein the method further comprises: In the step four, the plastic reinforced protective layer (2) is prepared on the insulated core (1) by using a VCV production line, the cable binding belt, the conductor shielding layer two and the insulation shielding layer two (5) are sequentially wrapped, and the cable core is formed.

8. The method of claim 7, wherein the method further comprises: In the step five, the aluminum belt seam is welded by using an argon arc welding double-welding-gun welding process.

9. The method of claim 8, wherein the method further comprises: The intelligent cable further comprises a fire-retardant layer, the fire-retardant layer is a fireproof mud layer or a fire-retardant layer made of a glass fiber belt, and the fire-retardant layer is sleeved outside the insulated core (1) wrapped with the semi-conductive water-blocking belt.

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