Intelligent photoelectric liquid-cooled shore power reel cable

Abstract

The application discloses an intelligent photoelectric liquid-cooled shore power drum cable, which comprises three power line cores stacked against each other, a center liquid-cooled pipe is arranged in the center gap of the three power line cores, a monitoring line core group and two ground line cores are arranged in the outer edge gap of the three power line cores, and the center liquid-cooled pipe, the power line cores, the ground line cores and the monitoring line core group are extruded and formed with a sheath. The intelligent photoelectric liquid-cooled shore power drum cable is provided with the center liquid-cooled pipe, the temperature inside the cable core is effectively lowered through water cooling, the influence of the temperature on the load capacity is reduced, the sheaths of the line cores and the sheath are respectively made of materials with high strength, high hardness and low density, the self-weight of the cable is reduced, the hardness of the cable is improved, the cable is prevented from being damaged during operation, and the use requirement is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cables, in particular to an intelligent optoelectronic liquid-cooled shore power drum cable. BACKGROUND

[0002] In order to ensure the stability of power supply when the ship is docked, the cable needs to have the requirements of resistance to winding, resistance to tension, resistance to wear and tear, and prevention of core breakage.

[0003] The shore power cable is wound and stacked on the drum, and the shore power cable enters the working state after the ship enters the port. The working condition of the tightly wound shore power cable on the drum seriously affects the load carrying capacity, forcing the increase of the conductor cross section to meet the load carrying capacity requirement; the cable is exposed to the outdoor environment for a long time, and the temperature of the cable itself rises in summer. Due to the large weight of the cable core itself, the environment of tight winding forces the cable to be squeezed and deformed under high temperature, resulting in the inability to be wound; during use, the large wire core in the cable is easily squeezed during winding, which causes the risk of core breakage of the optical cable and the control wire core.

[0004] Therefore, the shore power cable often faces the risks of thick outer diameter, large self-weight, core breakage of the monitoring wire core group and deformation of the cable core during the design and selection process, which causes the shore power cable to be unable to operate normally and stably for a long time, resulting in huge economic losses to the port and ship operating companies. SUMMARY

[0005] Based on the above problems, the purpose of the present application is to provide an intelligent optoelectronic liquid-cooled shore power drum cable, which reduces the influence of temperature on the load carrying capacity, improves the anti-squeezing performance of the monitoring wire core group, and reduces the self-weight of the cable.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] An intelligent optoelectronic liquid-cooled shore power drum cable comprises three power wire cores stacked against each other, a center liquid cooling pipe is arranged in the center gap of the three power wire cores, a monitoring wire core group and two ground wire cores are arranged in the outer gap of the three power wire cores, and a sheath is formed by extrusion coating after the center liquid cooling pipe, the power wire core, the ground wire core and the monitoring wire core group.

[0008] In particular, the center liquid cooling pipe is made of a high-temperature resistant material, the pipe wall thickness is greater than or equal to 0.5 mm, the pipe body compressive strength is greater than or equal to 25.0 MPa, and the air tightness test is passed at 10.0 bar.

[0009] In particular, the power wire core comprises a tinned copper conductor, the tinned copper conductor is twisted by tinned copper wire, a conductor liquid cooling pipe is arranged at the center of the twisted strand, a semi-conductive nylon belt is wrapped around the surface of the tinned copper conductor, a semi-conductive conductor shielding layer is extrusion coated outside the semi-conductive nylon belt, an ethylene-propylene rubber insulation layer is arranged outside the semi-conductive conductor shielding layer, and a semi-conductive insulation shielding layer is wrapped outside the ethylene-propylene rubber insulation layer.

[0010] Particularly, the strand bundle of the tinned copper conductor has a joint diameter ratio of ≤20, the inner layer has a joint diameter ratio of ≤16 when stranded, and the outermost layer has a joint diameter ratio of ≤10, the liquid cooling pipe has an outer diameter of 3.0 mm and a wall thickness of 0.5 mm.

[0011] Particularly, the semi-conductive conductor shielding layer, the EPR insulation layer, and the semi-conductive insulation shielding layer adopt a three-layer co-extrusion structure, the semi-conductive conductor shielding layer has a nominal thickness of ≥0.8 mm, the semi-conductive insulation shielding layer has a nominal thickness of ≥0.7 mm, and the EPR insulation layer has an average thickness of ≥3.4 mm and a minimum thickness of ≥2.96 mm.

[0012] Particularly, the ground wire core comprises a tinned soft copper conductor, and a semi-conductive sheath layer is extruded outside the tinned soft copper conductor, the strand bundle of the tinned soft copper conductor has a joint diameter ratio of ≤20, the inner layer has a joint diameter ratio of ≤16 when stranded, and the outermost layer has a joint diameter ratio of ≤10, the semi-conductive sheath layer adopts a compression-resistant semi-conductive material, and the Mooney index is ≤50.

[0013] Particularly, the monitoring wire core group comprises a center support, five control wire cores, and an optical cable unit, the control wire cores are stranded into a cable around the center support, the conductor surface of the control wire cores is provided with control wire core insulation, the control wire cores and the optical cable unit are wrapped with an inner layer of tape, the inner layer of tape is provided with a braided shielding layer, the braided shielding layer is wrapped with an outer layer of tape, and the surface of the outer layer of tape is provided with a protective layer.

[0014] In particular, the surface layer of the central support is polyethylene material, and the center uses 0.7mm diameter aviation steel wire rope as traction; the center of the optical cable unit is a non-metallic center tube using 400D aramid fiber rope as a tensile element, and the outer periphery of the non-metallic center tube is provided with a plurality of mode optical fibers, the outer diameter of the optical cable unit is controlled to be 3.5mm-4.5mm, and the surface layer is a thermosetting polyolefin material with a material hardness≥95A; the conductor center strand of the control core uses 1500D aramid fiber as a tensile unit, the aramid fiber is twisted with 6 strands of tinned copper wire, the outer diameter of the conductor is controlled to be 1.8mm-2.2mm, the insulation of the control core uses hard ethylene-propylene rubber material, and the nominal thickness of the insulation is 0.5mm, the outer diameter of the control core is 3.8mm-4.2mm; the inner layer of the tape is a single layer of polyester non-woven fabric, and the polyester surface faces inwards, the non-woven fabric faces outwards, the wrapping direction is opposite to the cabling direction of the monitoring core group and the optical cable unit, the tape overlap rate is 15%-25%, the cabling pitch is 15-18 times, and the outer diameter after cabling is 11.5mm-12.5mm; the braided shielding layer is made of tinned copper wire, the single wire diameter is 0.20mm, the braiding density is≥82%, the braiding pitch is≥65.5mm, and the outer diameter of the braided shielding layer is 12.3mm; the outer layer of the tape is wrapped with a single layer of polyester tape, the thickness is 0.03mm, the width is 20mm-30mm, the wrapping overlap rate is 25%, and the outer diameter is 12.4mm; the protective layer uses TPE-E material, the tensile strength of the material is≥30.0Mpa, the elongation at break is≥500%, the tear strength is≥50N / mm, the Shore hardness is as high as 55D, the nominal thickness of the protective layer is 1.0mm, and the overall outer diameter of the monitoring core group is 14.0mm-15.0mm.

[0015] In particular, the sheath is extruded after the center liquid cooling pipe, power core, grounding core, and monitoring core group are coated with graphite and subjected to a cabling process, the cable core surface is wrapped with a single layer of semi-conductive nylon tape in an interval and reverse direction, the cabling pitch is controlled to be 10-12 times, and the wrapping interval distance is≥40mm.

[0016] In particular, the sheath includes an inner sheath, an outer sheath, and a fiber reinforcing layer in between, the inner sheath and the outer sheath use polyurethane elastomer material, the tensile strength of the material is≥25.0Mpa, the tear strength is≥40N / mm, the Shore hardness is as high as 95A, and the density is≤1.15g / cm 3 The fiber reinforcing layer is woven with 1500D aramid fiber material, and the weaving density is 25%-35%.

[0017] In conclusion, the intelligent photoelectric liquid-cooled shore power drum cable has the advantages that the center liquid-cooled pipe effectively reduces the temperature inside the cable core by water cooling, reduces the influence of temperature on the load capacity, and the sheath and the sheath of each core are made of materials with high strength, high hardness and low density, thereby reducing the self-weight of the cable and improving the hardness of the cable to prevent damage during operation and meet the use requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a cross-sectional schematic view of the intelligent photoelectric liquid-cooled shore power drum cable provided by the embodiment of the present application. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar parts or parts with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0020] In the description of the present application, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, can be detachably connected, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] In the description of the present application, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0022] The technical solutions of the present application are further illustrated below by specific embodiments in combination with the drawings.

[0023] Please refer to Figure 1As shown, the preferred embodiment provides an intelligent photoelectric liquid-cooled shore power reel cable, which comprises three power line cores 1 stacked against each other, a central liquid-cooled pipe 2 is arranged in the center gap of the three power line cores 1, a monitoring line core group 4 and two ground line cores 3 are arranged in the outer gap of the three power line cores 1, and the central liquid-cooled pipe 2, the power line core 1, the ground line core 3 and the monitoring line core group 4 are extruded and formed with a sheath 5 after being cabled.

[0024] Wherein the central liquid-cooled pipe 2 is made of high-strength, high-hardness and good-heat-conducting high-temperature-resistant material, the outer diameter of the pipe is 0.154 times the outer diameter of the main insulation, the wall thickness is ≥0.5mm, and the central liquid-cooled pipe 2 is located in the center of the cable. In order to prevent pipe body damage and stress burst, pressure and air tightness test is required: pipe body extrusion is subjected to burst pressure test, the compression strength is ≥25.0MPa, and the air tightness test is injected with 10.0bar air to confirm whether the pipe body has air leakage.

[0025] Wherein the power line core 1 comprises a tin-plated copper conductor 12, a conductor liquid-cooled pipe 11 is arranged in the center of the tin-plated copper conductor 12, a semi-conductive nylon belt 13 is wrapped around the surface of the tin-plated copper conductor 12, a semi-conductive conductor shielding layer 14 is extruded and wrapped outside the semi-conductive nylon belt 13, an ethylene-propylene rubber insulation layer 15 is arranged outside the semi-conductive conductor shielding layer 14, and a semi-conductive insulation shielding layer 16 is wrapped outside the ethylene-propylene rubber insulation layer 15.

[0026] In particular, the conductor liquid-cooled pipe 11 is made of high-strength, high-hardness and good-heat-conducting thermosetting polyolefin material, the outer diameter of the pipe is 3.0mm, and the wall thickness is 0.5mm. Specifically, it is produced by 80+50 extrusion machine PVC screw, the screw extrusion temperature is 225-235℃, and the eye membrane temperature reaches 240℃. It ensures that the liquid-cooled pipe is round and smooth in appearance, and ensures that the liquid-cooled pipe does not deform during the conductor stranding process.

[0027] The strand of the tin-plated copper conductor 12 is consistent with the outer diameter of the conductor liquid-cooled pipe 11, which ensures the normal stranding structure of the conductor of the cable and improves the bending performance of the conductor of the cable. The strand bundle joint diameter ratio is ≤20, the inner layer joint diameter ratio is ≤16 during re-stranding, and the outermost layer stranding joint diameter ratio is ≤10.

[0028] The semi-conductive conductor shielding layer 14, the ethylene-propylene rubber insulation layer 15 and the semi-conductive insulation shielding layer 16 adopt a three-layer co-extrusion structure. The nominal thickness of the semi-conductive conductor shielding layer 14 is ≥0.8mm, the nominal thickness of the semi-conductive insulation shielding layer 16 is ≥0.7mm, and the average thickness of the ethylene-propylene rubber insulation layer 15 is ≥3.4mm, and the minimum thickness is ≥2.96mm. Specifically, it is produced by 90+120 continuous vulcanization equipment, the ethylene-propylene rubber material machine body extrusion temperature is 70-85℃, the production speed is controlled at about 3.5m / min, the pipe steam temperature is ≥170℃, and the pipe pressure is 9.5-11.0bar, which ensures that the insulation surface is smooth, round, basically uniform in color, and free of visible pores on the surface and cross section.

[0029] Wherein, the ground wire core 3 includes a tinned soft copper conductor 31, the conductor strand is regularly stranded, the stranding pitch is consistent with the main core, the strand binding pitch ratio is ≤20, the inner layer pitch ratio is ≤16 when re-stranded, the outermost layer stranding pitch ratio is ≤10, the tinned soft copper conductor 31 is extruded with a semi-conductive sheath 32, the semi-conductive sheath 32 uses a pressure-resistant semi-conductive material, the Mooney index is ≤50, specifically using a 65 continuous vulcanization machine to extrude, the machine body temperature is controlled at 80-95℃, to ensure that the sheath 48 surface is smooth and round, without air holes.

[0030] Wherein, the monitoring wire core group 4 includes a center support 42 and five control wire cores 43 and an optical cable unit 41 stranded into a cable around the center support 42, the conductor surface of the control wire core 43 is provided with a control wire core insulation 44, and the control wire core 43 and the optical cable unit 41 are wrapped with an inner layer tape 45, the inner layer tape 45 is provided with a braided shielding layer 46 outside, the braided shielding layer 46 is wrapped with an outer layer tape 47, and the surface of the outer layer tape 47 is provided with a protective layer 48.

[0031] In particular, the surface layer of the center support 42 is a polyethylene material, and the center uses a 0.7mm diameter aviation steel wire rope as a traction.

[0032] The center of the optical cable unit 41 is a non-metallic center tube with a 400D aramid fiber rope as a tensile element, and the periphery of the non-metallic center tube is provided with an OM1 series core diameter of 62.5um G.651 mobile multi-mode optical fiber, the outer diameter of the optical cable unit 41 is controlled to be 3.5-4.5mm, and the surface layer is a thermosetting polyolefin material with a Shore hardness higher than 95A and a smooth surface.

[0033] The conductor of the control wire core 43 adopts a 1+6 regular stranding mode, the center strand uses a 1500D aramid fiber as a tensile element, and the aramid fiber is stranded with 6 tinned copper wire strands, the conductor outer diameter is controlled to be 1.8-2.2mm, the control wire core insulation 44 uses a hard EP rubber material with a tensile strength ≥12.5Mpa, a breaking elongation ≥200%, and a Shore hardness up to 90A, the material is produced by a 65 continuous vulcanization machine with an extrusion temperature of 80-110℃, a production speed controlled at about 6.5m / min, a pipeline steam temperature ≥170℃, and a pipeline pressure of 8.0-10.0bar, the control wire core 43 has an outer diameter of 3.8-4.2mm, a smooth and round appearance, good internal sliding property, and high strength, which ensures that the wire core is in a winding and moving working condition, and the high-hardness insulation material can avoid the risk of extrusion deformation of other power wire cores 1.

[0034] The inner layer wrapping tape 45 is a single layer of polyester non-woven fabric, with the polyester facing inwards and the non-woven fabric facing outwards. During the wrapping process, the polyester facing inwards increases the sliding property inside the core, and the non-woven fabric facing outwards serves as a metal shielding layer. The wrapping direction is opposite to the cabling direction of the monitoring core group 4 and the optical cable unit 41. The wrapping coverage is 15% to 25%, and the cabling pitch is 15 to 18 times. After cabling, the outer diameter is 11.5mm to 12.5mm.

[0035] The woven shielding layer 46 is woven by 24 spindles of tinned copper wire, with a single wire diameter of 0.20mm and a weaving density of ≥82%. The weaving pitch is ≥65.5mm, and the outer diameter of the woven shielding layer 46 is 12.3mm.

[0036] The outer layer wrapping tape 47 is wrapped by a single layer of polyester tape, with a thickness of 0.03mm and a width of 20mm to 30mm. The wrapping coverage is 25%, and the outer diameter is 12.4mm. The design of this structure can effectively improve the sliding property of the monitoring core group 4 inside the cable.

[0037] The protective layer 48 is made of TPE-E material, with a tensile strength of ≥30.0Mpa, an elongation at break of ≥500%, a tear strength of ≥50N / mm, and a Shore hardness of up to 55D. The material is extruded by an 80+50 extrusion machine with a PVC screw, and the insulation nominal thickness is 0.5mm. The machine body temperature is 180 to 220℃. The protective layer 48 has a nominal thickness of 1.0mm, and the overall outer diameter of the monitoring core group 4 is 14.0mm to 15.0mm. The surface of the protective layer 48 is smooth, round, and basically uniform in color, with no visible pores on the surface and cross-section.

[0038] It should be noted that before the sheath 5 is extruded, the center liquid cooling pipe 2, the power core 1, the grounding core 3, and the monitoring core group 4 are first coated with graphite and subjected to a cabling process, ensuring good sliding property inside the cable core and preventing the cable from bending and breaking during winding.

[0039] The sheath 5 includes an inner sheath 51, an outer sheath 53, and a fiber reinforcing layer 52 in the middle. The three-layer structure provides overall protection for the internal cores, fixes the internal position to prevent core displacement, and simultaneously meets the requirements of harsh external use environments due to the excellent material of the sheath 5.

[0040] In particular, the fiber reinforcing layer 52 is woven from 1500D aramid fiber, specifically using a 32-spindle vertical weaving machine, with 2 1500 denier aramid fibers per spindle, and a weaving density of 25% to 35%.

[0041] The inner sheath 51 and the outer sheath 53 are made of polyurethane elastomer material, the tensile strength of which is greater than or equal to 25.0 Mpa, the tear strength of which is greater than or equal to 40 N / mm, and the Shore hardness of which is as high as 95A, and the performance indexes of which are all better than those of rubber material, and meanwhile, the density of the material is not greater than 1.15 g / cm 3 , which greatly reduces the weight of the cable itself, and the material has excellent wear resistance, oil resistance, low temperature resistance and other characteristics. Specifically, the inner sheath 51 and the outer sheath 53 are made by using a 120# extruding machine, and the material needs to be heated in an oven at 85°C for 3-4 hours before being extruded, the temperature of the machine body of the extruding equipment is set to 185-210°C, and the production speed is 3-5 m / min.

[0042] In summary, the above-mentioned intelligent photoelectric liquid-cooled shore power drum cable is provided with a center liquid-cooled pipe to effectively reduce the temperature inside the cable core by water cooling, thereby reducing the influence of temperature on the load capacity, and the sheath and the sheath of each wire core are made of material with high strength, high hardness and low density, which reduces the weight of the cable itself while improving the hardness of the cable, prevents damage during operation, and meets the use requirements.

[0043] The above examples only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Without departing from the spirit and scope of the present application, various changes and modifications can be made to the present application, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An intelligent opto-electrically cooled shore-to-reel cable, characterized in that, Three power line cores are stacked against each other, a center liquid cooling pipe is arranged in the center gap of the three power line cores, and a monitoring line core group and two ground line cores are arranged in the outer edge gap of the three power line cores; the center liquid cooling pipe, the power line core, the ground line core and the monitoring line core are extruded and formed with a sheath; The power line core comprises a tinned copper conductor, the tinned copper conductor is twisted by tinned copper wires, a conductor liquid cooling pipe is arranged at the center of the twisted strand, a semi-conductive nylon belt is wrapped around the surface of the tinned copper conductor, a semi-conductive conductor shielding layer is extruded and wrapped outside the semi-conductive nylon belt, an ethylene-propylene rubber insulation layer is arranged outside the semi-conductive conductor shielding layer, and a semi-conductive insulation shielding layer is wrapped outside the ethylene-propylene rubber insulation layer.

2. The intelligent optoelectronic liquid-cooled shore power reeling cable according to claim 1, characterized in that: The center liquid cooling pipe is made of a high-temperature-resistant material, the pipe wall thickness is greater than or equal to 0.5 mm, and the pipe body compression strength is greater than or equal to 25.0 MPa, and the air tightness test under 10.0 bar is passed.

3. The intelligent optoelectronic liquid-cooled shore power reeling cable according to claim 1, characterized in that: The strand bundle joint diameter ratio of the tinned copper conductor is less than or equal to 20, the inner layer joint diameter ratio during the re-twisting is less than or equal to 16, and the outermost layer joint diameter ratio is less than or equal to 10; the outer diameter of the conductor liquid cooling pipe is 3.0 mm, and the wall thickness is 0.5 mm.

4. The intelligent optoelectronic liquid-cooled shore power reeling cable according to claim 1, characterized in that: The semi-conductive conductor shielding layer, the ethylene-propylene rubber insulation layer and the semi-conductive insulation shielding layer adopt a three-layer co-extrusion structure, the nominal thickness of the semi-conductive conductor shielding layer is greater than or equal to 0.8 mm, the nominal thickness of the semi-conductive insulation shielding layer is greater than or equal to 0.7 mm, and the average thickness of the ethylene-propylene rubber insulation layer is greater than or equal to 3.4 mm, and the thinnest point thickness is greater than or equal to 2.96 mm.

5. The intelligent optoelectronic liquid-cooled shore power reeling cable of claim 1, wherein: The ground line core comprises a tinned soft copper conductor, a semi-conductive protective layer is extruded outside the tinned soft copper conductor, the strand bundle joint diameter ratio of the tinned soft copper conductor is less than or equal to 20, the inner layer joint diameter ratio during the re-twisting is less than or equal to 16, and the outermost layer joint diameter ratio is less than or equal to 10; the semi-conductive protective layer is made of a compression-resistant semi-conductive material, and the Mooney index is less than or equal to 50.

6. The intelligent optoelectronic liquid-cooled shore power reeling cable of claim 1, wherein: The monitoring line core group comprises a center support, five control line cores and an optical cable unit twisted into a cable around the center support, the conductor surface of the control line core is provided with a control line core insulation, and the control line core and the optical cable unit are wrapped with an inner layer tape outside, the inner layer tape is provided with a braided shielding layer outside, the braided shielding layer is wrapped with an outer layer tape outside, and the surface of the outer layer tape is provided with a protective layer.

7. The intelligent optoelectronic liquid-cooled shore power reeling cable according to claim 6, characterized in that: The surface layer of the center support is made of polyethylene material, and the center is made of 0.7mm diameter aviation steel wire rope as traction; the center of the optical cable unit is a non-metallic center tube with 400D aramid fiber rope as the tensile element, and the outer periphery of the non-metallic center tube is provided with a plurality of mode optical fibers, the outer diameter of the optical cable unit is controlled to be 3.5mm-4.5mm, and the surface layer is made of thermosetting polyolefin material with a material hardness of ≥95A; the conductor center strand of the control core is made of 1500D aramid fiber as the tensile element, and the aramid fiber is twisted with 6 strands of tinned copper wire outside, the outer diameter of the conductor is controlled to be 1.8mm-2.2mm, the insulation of the control core is made of hard ethylene-propylene rubber material, and the insulation nominal thickness is 0.5mm, the outer diameter of the control core is 3.8mm-4.2mm; the inner layer of the tape is single-layer polyester non-woven fabric, and the polyester surface faces inwards, the non-woven fabric faces outwards, the wrapping direction is opposite to the cabling direction of the monitoring core group and the optical cable unit, the tape overlap rate is 15%-25%, the cabling pitch is 15-18 times, and the outer diameter after cabling is 11.5mm-12.5mm; the braided shielding layer is made of tinned copper wire, the single wire diameter is 0.20mm, the braiding density is ≥82%, the braiding pitch is ≥65.5mm, and the outer diameter of the braided shielding layer is 12.3mm; the outer layer of the tape is wrapped with single-layer polyester tape, the thickness is 0.03mm, the width is 20mm-30mm, the wrapping overlap rate is 25%, and the outer diameter is 12.4mm; the protective layer is made of TPE-E material, the tensile strength of the material is ≥30.0Mpa, the elongation at break is ≥500%, the tear strength is ≥50N / mm, the Shore hardness is as high as 55D, the nominal thickness of the protective layer is 1.0mm, and the overall outer diameter of the monitoring core group is 14.0mm-15.0mm.

8. The intelligent optoelectronic fluid-cooled shore power reeling cable of claim 1, wherein: The sheath is extruded after the center liquid cooling pipe, power core, grounding core and monitoring core group are coated with graphite and subjected to cabling process, the cable core surface is wrapped with single-layer semi-conductive nylon tape in reverse direction, the cabling pitch is controlled to be 10-12 times, and the wrapping interval distance is ≥40mm.

9. The intelligent optoelectronic fluid-cooled shore power reeling cable of claim 1, wherein: The sheath comprises an inner sheath, an outer sheath and a middle fiber reinforced layer, the inner sheath and the outer sheath adopt polyurethane elastomer material, the material tensile strength is greater than or equal to 25.0 Mpa, the tear strength is greater than or equal to 40 N / mm, the Shore hardness is up to 95A, and the density is less than or equal to 1.15 g / cm 3 The fiber reinforced layer is woven by 1500D aramid yarn material, and the weaving density is 25% to 35%.

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