Data center cable with intelligent thermal management and extreme viability and system thereof

Abstract

The invention discloses a data center cable with intelligent thermal management and extreme survivability and a system thereof. The cable comprises a conductor and a gradient heat conduction composite insulation layer wrapping the conductor, wherein the gradient heat conduction composite insulation layer is composed of a high heat conduction inner layer and a ceramic fire-resistant outer layer; the distributed temperature sensing optical fiber is arranged along the axial direction; the cable core is coated with the flexible metal microfilament braided armor layer; and the integrated intelligent interface module is arranged at the end part, and an RFID chip is arranged in the integrated intelligent interface module. The invention further discloses an intelligent thermal management and safety monitoring method based on the cable, the whole-line temperature is monitored in real time through the distributed optical fibers, and graded early warning and accurate positioning are achieved; when a fire occurs, the system is switched to a survival mode, and the real-time integrity of the cable in a fire scene is remotely diagnosed by using an optical fiber signal; active heat dissipation is achieved through cooperation of gradient heat conduction and metal armoring, and a full-life-cycle safety monitoring system from daily heat management to extreme fire survival is constructed through sensing and communication fusion.

Description

Technical Field

[0001] This invention relates to the field of wire and cable technology, specifically to a highly reliable cable and its monitoring and management system that is applied to high-density data centers, has real-time temperature sensing, active heat dissipation, and can survive and diagnose under extreme fire conditions. Background Technology

[0002] The global digital transformation has driven a surge in computing power demand, with data center rack power density evolving from the traditional 5-8kW to 30kW or even higher. The continuous operation of servers and GPU clusters generates enormous heat, causing data center interiors to be under constant high-temperature stress of 40-55℃. Traditional polyvinyl chloride (PVC) or cross-linked polyethylene (XLPE) insulated cables, typically rated for operation at 70℃ or 90℃, face severe challenges under these conditions: First, the insulation material ages rapidly due to heat, significantly shortening its lifespan and increasing the risk of breakdown; second, high temperatures increase conductor resistance, leading to additional energy consumption and temperature rise, creating a vicious cycle and reducing current-carrying capacity; most critically, cable overheating is a major cause of electrical fires, and the dense smoke and toxic hydrogen halide gases released when traditional cables burn pose a serious threat to personnel safety and expensive equipment.

[0003] While existing technologies offer improvements such as using high-temperature resistant silicone rubber (e.g., rated at 150℃) or adding metal sheaths, these are all passive, single-point solutions with inherent drawbacks: 1) Unknown thermal hazards: The temperature distribution along the entire cable, especially in concealed sections, cannot be monitored in real time, and localized hotspots (such as poor contact areas) cannot be detected early warning; 2) Lack of thermal management: Only increasing the material's temperature resistance limit does not actively reduce the conductor's operating temperature, leaving the heat accumulation problem unresolved; 3) Disconnect between safety and maintenance: Fire-resistant cables may maintain power during a fire, but their real-time damage location and survival status in the fire are a black box for maintenance personnel, providing no information for emergency decision-making. Therefore, data centers urgently need a systematic power supply link solution that integrates status awareness, proactive adjustment, extreme survival capabilities, and intelligent diagnostics. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-temperature cable and system for data centers, so as to systematically solve the core technical problems of unknowable thermal hazards, insufficient heat dissipation capacity, and uncontrollable survival status under fire of traditional cables, and realize the leap from passive protection to active intelligent protection of power supply safety.

[0005] The technical solution adopted in this invention is:

[0006] A data center cable with intelligent thermal management and extreme survivability includes a conductor and further includes:

[0007] A gradient thermally conductive composite insulating layer covering the conductor, the gradient thermally conductive composite insulating layer comprising a high thermal conductivity inner layer and a ceramicizable fire-resistant outer layer from the inside out;

[0008] Distributed temperature sensing optical fiber deployed along the cable axis;

[0009] The distributed temperature sensing fiber is twisted together with a filler rope and placed on the geometric neutral axis of the cable core.

[0010] The conductors covered with a gradient thermally conductive composite insulation layer are stranded into cable cores; a flexible metal microfilament braided armor layer is provided on the outside of the cable cores;

[0011] A flexible metal microfilament braided armor layer covering the gradient thermally conductive composite insulation layer and the distributed temperature sensing optical fiber;

[0012] Additionally, an integrated smart interface module is installed at the end of the cable, which is connected to the distributed temperature sensing optical fiber and has a built-in RFID chip storing cable identification information.

[0013] Preferably, the matrix material of the high thermal conductivity inner layer and / or the ceramicizable refractory outer layer is low-smoke halogen-free flame-retardant silicone rubber.

[0014] The silicone rubber formulation comprises, by weight, the following components:

[0015] Methyl vinyl silicone rubber raw material (vinyl content 0.04%, molecular weight 610,000): 32 parts;

[0016] Methyl vinyl silicone rubber raw material (vinyl content 0.08%, molecular weight 630,000): 8 parts;

[0017] Vinyl silicone rubber raw material (vinyl content 0.16%, molecular weight 660,000): 2 parts;

[0018] Hydroxysilicone oil: 0.1 parts;

[0019] High-hydrogen-content silicone oil: 0.15 parts;

[0020] Flame retardant A (aluminum hydroxide, particle size 1-5μm): 38 parts;

[0021] Flame retardant B (expandable graphite, expansion ratio 50-100): 0.5 parts;

[0022] Flame retardant C (compound system): 0.15 parts;

[0023] Ethynecyclohexanol (inhibitor): 0.025 parts;

[0024] Platinum compound (platinum content 5000ppm): 0.1 parts;

[0025] Benzotriazole (stabilizer): 0.025 parts;

[0026] Fumed silica (specific surface area > 180 m² / g): 15 parts;

[0027] Silica powder (inorganic filler): 3 parts;

[0028] Vinyltriethoxysilane (coupling agent): 0.03 parts;

[0029] Vinyltrimethoxysilane (coupling agent): 0.01 parts;

[0030] Zinc stearate (release agent): 0.2 parts;

[0031] Platinum curing agent (two-component): 2.1 parts.

[0032] Preferably, the silicone rubber formulation of the high thermal conductivity inner layer contains an additional 10-25 parts by weight of hydroxyl-modified boron nitride nanosheets; the silicone rubber formulation of the ceramicizable refractory outer layer contains an additional 20-35 parts by weight of ultrafine aluminum hydroxide, 15-30 parts by weight of low melting point glass powder and 3-8 parts by weight of silica aerogel powder.

[0033] Preferably, the flexible metal microfilament braided armor layer is woven from stainless steel microfilaments with a diameter of 0.10-0.15 mm, with a braiding coverage of more than 80%, and is further longitudinally wrapped with an embossed stainless steel strip with a thickness of 0.05-0.10 mm.

[0034] A method for manufacturing a data center cable with intelligent thermal management and extreme survivability includes the following steps:

[0035] S1: The conductor is made using the American standard K-type stranded structure. The direction of both the bundle and the twisting is left-handed. The bundle diameter ratio is 20 and the twisting diameter ratio is 14.

[0036] S2: Using a double-layer co-extrusion process, the high thermal conductivity inner layer (21) and the ceramicizable refractory outer layer 22 are simultaneously extruded on the outside of the conductor and then continuously vulcanized.

[0037] S3: After twisting the distributed temperature sensing optical fiber and the filler rope together, they are twisted into one piece and placed on the geometric neutral axis of the cable core. The conductor covered with the gradient thermally conductive composite insulation layer is twisted into the cable core.

[0038] S4: Braid the flexible metal microfilament braided armor layer outside the cable core wrapped with temperature sensing optical fiber;

[0039] S5: Assemble the integrated intelligent interface module at the end of the cable to complete the fiber optic splicing and circuit connection;

[0040] S6: An outer sheath is extruded over the armor layer.

[0041] A method for intelligent thermal management and safety monitoring of data center cables with intelligent thermal management and extreme survivability includes the following steps:

[0042] S11: Obtain temperature distribution data of the entire cable line through the distributed temperature sensing optical fiber;

[0043] S12: The monitoring system makes a judgment based on the preset first temperature threshold T1 and second temperature threshold T2, T1 <T2;

[0044] S13: When the temperature at any point exceeds T1 but is lower than T2, the system will issue a warning.

[0045] S14: When the temperature at any point reaches or exceeds T2, or the rate of temperature rise exceeds the critical value, the system triggers an audible and visual alarm and performs precise positioning through the RFID chip;

[0046] S15: When the system receives a fire alarm signal or detects that the temperature continues to exceed the fire-resistant trigger temperature T3, it determines that it has entered the fire survival mode. The system switches to monitoring the signal status of the distributed temperature sensing fiber optic cable 4 to determine the integrity of the cable in the fire scene.

[0047] Preferably, the method further includes: the system coupling and analyzing temperature data with the real-time current carrying capacity of the cable and ambient temperature, dynamically calculating and displaying the remaining safe current carrying capacity of the cable.

[0048] Preferably, the fire-resistant triggering temperature T3 is 450℃-550℃.

[0049] A data center power supply security system includes: at least one data center cable with intelligent thermal management and extreme survivability, and a monitoring platform communicatively connected to the cable's integrated intelligent interface module, the monitoring platform being configured to perform intelligent thermal management and security monitoring methods.

[0050] The advantages of this invention over the prior art are:

[0051] 1. Achieved holographic perception and precise early warning of power supply and thermal safety: Distributed temperature measurement optical fiber can draw continuous and real-time temperature maps of the entire cable with spatial resolution down to the meter level and temperature accuracy of ±1℃; combined with RFID identification, it can instantly locate a temperature anomaly at a certain point to a certain meter in a certain computer room-a certain cabinet-a certain cable, turning the hazard investigation from a needle in a haystack of manual inspection into precise navigation with proactive alarms from the system, and realizing predictive maintenance.

[0052] 2. It generates a synergistic effect of active thermal management and increased current carrying capacity: The gradient thermal conductivity structure (high conductivity inner layer + metal armor diffusion layer) creates an efficient heat flow channel from the heat source (conductor) to the environment; this structure can significantly reduce the conductor's operating temperature. Under the same current carrying capacity, it extends the cable insulation life.

[0053] 3. A dual protection system for life support and status diagnosis under extreme fire conditions has been established. The flexible fire-resistant design ensures that the cables maintain their integrity in flames. The armored temperature-sensing optical fiber becomes a lifeline in a fire. The system can remotely diagnose where the cables are damaged and where they are still intact in a fire, providing firefighters with a fire scene cable map and providing maintenance personnel with unprecedented critical real-time information to direct the emergency switching of core business operations, transforming blind fire resistance into predictable survival.

[0054] 4. It achieves the optimal balance between safety and economy throughout the entire life cycle; intelligent early warning avoids catastrophic failures and unplanned downtime losses; active cooling reduces operating energy consumption and extends asset life; and extreme fire survivability protects the core assets of the data center to the greatest extent. Attached Figure Description

[0055] Figure 1 A schematic diagram of the structure of a data center cable with intelligent thermal management and extreme survivability;

[0056] Figure 2 This is a flowchart of the method logic for intelligent thermal management and safety monitoring system.

[0057] Explanation of symbols for key components in the attached diagram:

[0058] In the picture:

[0059] 1. Conductor 2. Composite insulation layer

[0060] 21. High thermal conductivity inner layer; 22. Ceramizable refractory outer layer

[0061] 3. Non-hygroscopic filler rope; 4. Distributed temperature sensing optical fiber.

[0062] 5. Flexible metal microfilament braided armor layer; 6. Integrated intelligent interface module.

[0063] 7. Outer protective sleeve. Detailed Implementation

[0064] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0065] Figure 2 Flowchart of the method for intelligent thermal management and safety monitoring system;

[0066] The flowchart shows a closed-loop decision-making process. The process starts with "real-time monitoring of the temperature and current-carrying capacity of the whole line". Subsequently, the first judgment is made: "Is the temperature T ≤ T1 (e.g., 85 °C)?", if so, it enters the "Level 1: Health Management" box, the content of which is "recording the baseline, displaying the remaining capacity, and trend analysis"; if not, it enters the second judgment: "Is T1 < T ≤ T2 (e.g., 110 °C)?", if so, it enters the "Level 2: Early Warning and Cooperative Heat Dissipation" box, the content of which is "yellow zone early warning, generating work orders, and dominant heat dissipation by the gradient heat conduction structure"; if not, it enters the third judgment: "Is T > T2 or the temperature rise rate exceeds the limit?", if so, it enters the "Level 3: Alarm and Location" box, the content of which is "acoustic and optical alarm, precise location, and recommended linkage control"; if not (or thereafter), it enters the final judgment: "Is T ≥ T3 (e.g., 500 °C) or fire alarm?", if so, it enters the "Level 4: Fire Survival Diagnosis" box, the content of which is "switching to the survival mode, monitoring the optical fiber signal, and displaying the integrity with a red / green status bar". Finally, the process returns to the initial monitoring step to form a cycle.

[0067] Attached Figure 1 It can be seen that a data center cable with intelligent thermal management and extreme survival ability includes a conductor 1, and further includes:

[0068] A gradient heat conduction composite insulation layer 2 coated outside the conductor 1, and the gradient heat conduction composite insulation layer 2 includes a high heat conduction inner layer 21 and a ceramicizable refractory outer layer 22 from the inside to the outside;

[0069] A distributed temperature sensing optical fiber 4 arranged along the axial direction of the cable;

[0070] The distributed temperature sensing optical fiber 4 and a filling rope 3 are twisted together into one body and placed on the geometric neutral axis of the cable core;

[0071] The conductor 1 coated with the gradient heat conduction composite insulation layer 2 is twisted into a cable core; a flexible metal micro wire braided armor layer 5 is arranged outside the cable core;

[0072] And an integrated intelligent interface module 6 arranged at the end of the cable, the integrated intelligent interface module 6 is optically connected to the distributed temperature sensing optical fiber 4 and internally stores an RFID chip with cable identity information.

[0073] Preferably, the matrix material of the high heat conduction inner layer 21 and / or the ceramicizable refractory outer layer 22 is low-smoke, halogen-free, flame-retardant silicone rubber,

[0074] The silicone rubber formulation components, calculated by weight, include:

[0075] Raw methyl vinyl silicone rubber (vinyl content 0.04%, molecular weight 610,000): 32 parts;

[0076] Methyl vinyl silicone rubber raw material (vinyl content 0.08%, molecular weight 630,000): 8 parts;

[0077] Vinyl silicone rubber raw material (vinyl content 0.16%, molecular weight 660,000): 2 parts;

[0078] Hydroxysilicone oil: 0.1 parts;

[0079] High-hydrogen-content silicone oil: 0.15 parts;

[0080] Flame retardant A (aluminum hydroxide, particle size 1-5μm): 38 parts;

[0081] Flame retardant B (expandable graphite, expansion ratio 50-100): 0.5 parts;

[0082] Flame retardant C (compound system): 0.15 parts;

[0083] Ethynecyclohexanol (inhibitor): 0.025 parts;

[0084] Platinum compound (platinum content 5000ppm): 0.1 parts;

[0085] Benzotriazole (stabilizer): 0.025 parts;

[0086] Fumed silica (specific surface area > 180 m² / g): 15 parts;

[0087] Silica powder (inorganic filler): 3 parts;

[0088] Vinyltriethoxysilane (coupling agent): 0.03 parts;

[0089] Vinyltrimethoxysilane (coupling agent): 0.01 parts;

[0090] Zinc stearate (release agent): 0.2 parts;

[0091] Platinum curing agent (two-component): 2.1 parts.

[0092] Preferably, the silicone rubber formulation of the high thermal conductivity inner layer 21 contains an additional 10-25 parts by weight of hydroxyl-modified boron nitride nanosheets; the silicone rubber formulation of the ceramicizable refractory outer layer 22 contains an additional 20-35 parts by weight of ultrafine aluminum hydroxide, 15-30 parts by weight of low melting point glass powder and 3-8 parts by weight of silica aerogel powder.

[0093] Preferably, the flexible metal microfilament braided armor layer 5 is woven from stainless steel microfilaments with a diameter of 0.10-0.15 mm, with a braiding coverage of more than 80%, and is further wrapped with an embossed stainless steel strip (51) with a thickness of 0.05-0.10 mm.

[0094] A method for manufacturing a data center cable with intelligent thermal management and extreme survivability includes the following steps:

[0095] S1: The conductor is made using the American standard K-type stranded structure. The direction of both the bundle and the twisting is left-handed. The bundle diameter ratio is 20 and the twisting diameter ratio is 14.

[0096] S2: A double-layer co-extrusion process is adopted to simultaneously extrude the high thermal conductivity inner layer 21 and the ceramicizable refractory outer layer 22 on the outside of the conductor, and then perform continuous vulcanization.

[0097] S3: After twisting the distributed temperature sensing optical fiber 4 and the filler rope 3 together, they are twisted into one piece and placed on the geometric neutral axis of the cable core. The conductor 1 covered with the gradient thermally conductive composite insulation layer 2 is twisted into the cable core. S4: The flexible metal microfilament braided armor layer 5 is braided on the outside of the cable core wrapped with the temperature sensing optical fiber 4.

[0098] S5: Assemble the integrated intelligent interface module 6 at the end of the cable to complete the fiber optic splicing and circuit connection;

[0099] S6: Extruding an outer sheath 7 outside the armor layer.

[0100] A method for intelligent thermal management and safety monitoring of data center cables with intelligent thermal management and extreme survivability includes the following steps:

[0101] S11: Obtain temperature distribution data of the entire cable line through the distributed temperature sensing optical fiber 4;

[0102] S12: The monitoring system makes a judgment based on the preset first temperature threshold T1 and second temperature threshold T2, T1 <T2;

[0103] S13: When the temperature at any point exceeds T1 but is lower than T2, the system will issue a warning.

[0104] S14: When the temperature at any point reaches or exceeds T2, or the rate of temperature rise exceeds the critical value, the system triggers an audible and visual alarm and performs precise positioning through the RFID chip;

[0105] S15: When the system receives a fire alarm signal or detects that the temperature continues to exceed the fire-resistant trigger temperature T3, it determines that it has entered the fire survival mode. The system switches to monitoring the signal status of the distributed temperature sensing fiber optic cable 4 to determine the integrity of the cable in the fire scene.

[0106] Preferably, the method further includes: the system coupling and analyzing temperature data with the real-time current carrying capacity of the cable and ambient temperature, dynamically calculating and displaying the remaining safe current carrying capacity of the cable.

[0107] Preferably, the fire-resistant triggering temperature T3 is 450℃-550℃.

[0108] A data center power supply security system includes: at least one data center cable with intelligent thermal management and extreme survivability, and a monitoring platform communicatively connected to the cable via an integrated intelligent interface module 6, the monitoring platform being configured to perform intelligent thermal management and security monitoring methods.

[0109] Example 1: Cable preparation.

[0110] This embodiment aims to demonstrate the specific manufacturing process of the cable of the present invention:

[0111] Conductor 1 preparation: To prepare a 3-core cable, firstly, copper monofilaments with a diameter of 0.2 mm are bundled together in the left direction with a pitch ratio of 20; then, the bundled strands are re-twisted in the left direction with a pitch ratio of 14 to form the final conductor. This structure ensures the flexibility of the cable body to the greatest extent.

[0112] Preparation of gradient thermally conductive composite insulating layer 2:

[0113] a. Base Rubber Preparation: Prepare the base silicone rubber compound according to the following weight parts formula:

[0114] The mixture comprises 42 parts of methyl vinyl silicone rubber raw rubber (a blend of three different vinyl contents), 0.1 parts of hydroxyl silicone oil, 0.15 parts of high-hydrogen silicone oil, 38 parts of aluminum hydroxide (particle size 1-5 μm), 0.5 parts of expandable graphite, 0.15 parts of compounded flame retardant, 0.025 parts of acetylenecyclohexanol, 0.1 parts of platinum compound (platinum content 5000 ppm), 0.025 parts of benzotriazole, 15 parts of fumed silica (specific surface area > 180 m² / g), 3 parts of silica powder, 0.03 parts of vinyltriethoxysilane, 0.01 parts of vinyltrimethoxysilane, and 0.2 parts of zinc stearate. The mixture is thoroughly mixed in an internal mixer at 60°C. 2.1 parts of a two-component platinum vulcanizing agent are added just before use.

[0115] b. High thermal conductivity inner layer 21 adhesive:

[0116] Take 100 parts of the above base adhesive and add 20 parts of boron nitride nanosheets (average particle size 2 μm, aspect ratio > 150) modified with vinyltriethoxysilane. Disperse them thoroughly on a two-roll mill to ensure uniform filler.

[0117] c. Ceramizable refractory outer layer 22 adhesive:

[0118] Take 100 parts of the above base adhesive, add 30 parts of ultrafine aluminum hydroxide (D50=1.5μm), 25 parts of borosilicate glass powder with a softening point of 480℃, and 5 parts of hydrophobic silica aerogel powder, and mix evenly.

[0119] d. Extrusion and vulcanization:

[0120] A Φ90mm double-layer co-extrusion vulcanization production line is used. The inner layer rubber compound 21 and the outer layer rubber compound 22 are fed into the inner and outer layer extruders respectively, achieving concentric extrusion on the conductor. The extruded wire core immediately enters a 40-meter-long three-section vulcanization pipeline for continuous vulcanization. The temperatures are set as follows: 180℃ for the first section, 200℃ for the second section, and 220℃ for the third section. The production line speed is controlled at 25 meters per minute.

[0121] Cable assembly and sensing unit integration: Three composite-insulated wire cores are twisted together with a sensing unit to form a cable. The sensing unit consists of a 0.9mm outer diameter tight-buffered distributed temperature-sensing optical fiber 4 and a flame-retardant polyester fiber filler rope 3 of the same diameter twisted together at a 16mm pitch, and is placed on the geometric neutral axis in the center of the cable core.

[0122] Flexible armor and terminal integration: After cabling, 316 stainless steel microwires with a diameter of 0.12mm are braided at a braiding angle of 54° to form a flexible metal microwire braided armor layer 5 outside the cable core, with a coverage rate controlled at 85%. Subsequently, a 0.08mm thick embossed stainless steel tape 51 is longitudinally wrapped. An integrated intelligent interface module (6) is assembled at one end of the cable, and the optical fiber is fused with the photoelectric conversion unit in the module and encapsulated with epoxy resin. The module embeds an STM32 microprocessor, a Bluetooth / Wi-Fi dual-mode chip and an RFID chip.

[0123] Outer sheath extrusion: Finally, a 1.5mm thick low-smoke halogen-free flame-retardant polyolefin outer sheath 7 is extruded over the armor layer using an extruder to form the final product.

[0124] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the structure of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A data center cable with intelligent thermal management and extreme survivability, comprising a conductor (1), characterized in that, Also includes: A gradient thermally conductive composite insulating layer (2) covering the conductor (1) includes a high thermal conductivity inner layer (21) and a ceramicizable fire-resistant outer layer (22) from the inside to the outside. Distributed temperature sensing optical fiber (4) is laid out along the cable axis. The distributed temperature sensing fiber (4) is twisted together with a filler rope (3) and placed on the geometric neutral axis of the cable core. The conductor (1) covered with a gradient thermally conductive composite insulation layer (2) is stranded into a cable core; a flexible metal micro-wire braided armor layer (5) is provided on the outside of the cable core. In addition, an integrated smart interface module (6) is provided at the end of the cable. The integrated smart interface module (6) is connected to the distributed temperature sensing optical fiber (4). The integrated smart interface module (6) has an RFID chip that stores the cable's identity information.

2. The data center cable with intelligent thermal management and extreme survivability according to claim 1, characterized in that, The matrix material of the high thermal conductivity inner layer (21) and / or the ceramicizable refractory outer layer (22) is low-smoke halogen-free flame-retardant silicone rubber, and the silicone rubber formulation comprises, by weight: Methyl vinyl silicone rubber raw material: 42 parts; Hydroxysilicone oil: 0.1 parts; High-hydrogen-content silicone oil: 0.15 parts; Flame retardant A: 38 parts; Flame retardant B: 0.5 parts; Flame retardant C: 0.15 parts; Acetylenecyclohexanol: 0.025 parts; Platinum compound: 0.1 parts; Benzotriazole: 0.025 parts; Fumed silica: 15 parts; Silica powder: 3 parts; Vinyltriethoxysilane: 0.03 parts; Vinyltrimethoxysilane: 0.01 parts; Zinc stearate: 0.2 parts; Platinum vulcanizing agent: 2.1 parts.

3. The data center cable with intelligent thermal management and extreme survivability according to claim 2, characterized in that, The silicone rubber formulation of the high thermal conductivity inner layer (21) contains 10-25 parts by weight of hydroxyl-modified boron nitride nanosheets; the silicone rubber formulation of the ceramicizable refractory outer layer (22) contains 20-35 parts by weight of ultrafine aluminum hydroxide, 15-30 parts by weight of low melting point glass powder and 3-8 parts by weight of silica aerogel powder.

4. The data center cable with intelligent thermal management and extreme survivability according to claim 1, characterized in that, The flexible metal microfilament braided armor layer (5) is woven from stainless steel microfilaments with a diameter of 0.10-0.15 mm, with a braiding coverage of more than 80%, and is also longitudinally wrapped with an embossed stainless steel strip (51) with a thickness of 0.05-0.10 mm.

5. A method for manufacturing a data center cable with intelligent thermal management and extreme survivability as described in any one of claims 1-4, characterized in that, Includes the following steps: S1: The conductor is made using the American standard K-type stranded structure. The direction of both the bundle and the twisting is left-handed. The bundle diameter ratio is 20 and the twisting diameter ratio is 14. S2: Using a double-layer co-extrusion process, the high thermal conductivity inner layer (21) and the ceramicizable refractory outer layer (22) are simultaneously extruded on the outside of the conductor and then continuously vulcanized. S3: After twisting the distributed temperature sensing fiber (4) and the filler rope (3) together, they are twisted into one and placed on the geometric neutral axis of the cable core. The conductor (1) covered with the gradient thermal conductive composite insulation layer (2) is twisted into the cable core. S4: The flexible metal microfilament braided armor layer (5) is braided outside the cable core wrapped with temperature sensing optical fiber. S5: Assemble the integrated intelligent interface module (6) at the end of the cable to complete the fiber optic splicing and circuit connection; S6: Extrude an outer sheath (7) over the armor layer.

6. A method for intelligent thermal management and safety monitoring based on the cable described in any one of claims 1-4, characterized in that, Includes the following steps: S11: Obtain temperature distribution data of the entire cable line through the distributed temperature sensing optical fiber (4); S12: The monitoring system makes a judgment based on the preset first temperature threshold T1 and second temperature threshold T2, T1 <T2; S13: When the temperature at any point exceeds T1 but is lower than T2, the system will issue a warning. S14: When the temperature at any point reaches or exceeds T2, or the rate of temperature rise exceeds the critical value, the system triggers an audible and visual alarm and performs precise positioning through the RFID chip; S15: When the system receives a fire alarm signal or detects that the temperature continues to exceed the fire-resistant trigger temperature T3, it determines that it has entered the fire survival mode. The system switches to monitor the signal status of the distributed temperature sensing fiber (4) to determine the integrity of the cable in the fire scene.

7. The intelligent thermal management and safety monitoring method according to claim 6, characterized in that, The method further includes: the system couples temperature data with the cable's real-time current carrying capacity and ambient temperature for analysis, dynamically calculates and displays the cable's remaining safe current carrying capacity.

8. The intelligent thermal management and safety monitoring method according to claim 6, characterized in that, The fire-resistant triggering temperature T3 is 450℃-550℃.

9. A data center power supply security system, characterized in that, include: At least one data center cable as described in any one of claims 1-4, and a monitoring platform communicatively connected to the cable's integrated intelligent interface module (6), the monitoring platform being configured to perform the intelligent thermal management and security monitoring method as described in any one of claims 7 or 8.

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