CN223770861U - A high-shielding, anti-interference type optoelectronic composite high-voltage power cable - Google Patents
A high-shielding, anti-interference type optoelectronic composite high-voltage power cableInfo
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- CN223770861U CN223770861U CN202423213498.8U CN202423213498U CN223770861U CN 223770861 U CN223770861 U CN 223770861U CN 202423213498 U CN202423213498 U CN 202423213498U CN 223770861 U CN223770861 U CN 223770861U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
本实用新型公开了一种高屏蔽抗干扰型光电复合高压电力电缆，包括缆芯，所述的缆芯由多根光电复合屏蔽缆线绞合而成；在缆芯的空隙处填充纳米无卤高阻燃填充绳，在缆芯外绕包半导电尼龙带，在半导电尼龙带外包覆镀锡铜箔内屏蔽层，在镀锡铜箔内屏蔽层外设有阻燃内护套，在阻燃内护套外重叠绕包半导电缓冲阻水复合带，在半导电缓冲阻水复合带外绕包蛭石阻燃布，在蛭石阻燃布外设有钢芯复合加强层，在钢芯复合加强外设有Lyofil®防波套，在Lyofil®防波套外挤包陶瓷化低烟无卤聚烯烃耐火外护套。该电缆结构屏蔽效能高，动态电阻小，损耗低，有效的防止外部高频信号的干扰，信号传输速率快，具有较好的耐高温、阻燃、防火、防水、机械性能、耐腐蚀、耐老化、耐气候性等性能，绿色环保，使用寿命长。
This utility model discloses a high-shielding, anti-interference type optoelectronic composite high-voltage power cable, including a cable core, which is formed by twisting together multiple optoelectronic composite shielded cables; the gaps in the cable core are filled with nano-halogen-free high flame-retardant filler rope; a semi-conductive nylon tape is wrapped around the cable core; a tin-plated copper foil inner shielding layer is wrapped around the semi-conductive nylon tape; a flame-retardant inner sheath is provided outside the tin-plated copper foil inner shielding layer; a semi-conductive buffer water-blocking composite tape is wrapped around the flame-retardant inner sheath; vermiculite flame-retardant cloth is wrapped around the semi-conductive buffer water-blocking composite tape; a steel core composite reinforcement layer is provided outside the vermiculite flame-retardant cloth; a Lyofil® anti-surge sleeve is provided outside the steel core composite reinforcement layer; and a ceramicized low-smoke halogen-free polyolefin fire-resistant outer sheath is extruded outside the Lyofil® anti-surge sleeve. This cable structure boasts high shielding effectiveness, low dynamic resistance, and low loss, effectively preventing interference from external high-frequency signals. It also features fast signal transmission speed and excellent properties such as high temperature resistance, flame retardancy, fire resistance, water resistance, mechanical properties, corrosion resistance, aging resistance, and weather resistance. Furthermore, it is environmentally friendly and has a long service life.
Description
Technical Field
The utility model relates to the field of high-voltage cables, in particular to a high-shielding anti-interference photoelectric composite high-voltage power cable.
Background
In the process of constructing a new generation power grid, the national grid system adopts technical measures to practically solve the problem of operation safety of the high-voltage cable. The high-voltage cable with the optical fiber composite structure is a new technical development direction, is favorable for promoting the high-end development of cable engineering in China, and meets the requirement of 'intrinsic safety' of a new generation of power grid.
The photoelectric composite power cable mainly solves the transmission problem of power and signals at the same time, and is sometimes applied to special occasions such as connection of coastal islands and inland, transmission of electric energy and optical signals on the sea floor or the water bottom of an offshore wind power generation field and the like, so that the cable has certain radial waterproof performance, and an insulating layer has corrosion resistance and impact resistance;
The high-voltage cable faults are often caused by the fact that insulation level is reduced, leakage current is increased, loss is increased, temperature is increased, insulation aging is further caused by temperature increase, leakage current is increased, temperature is increased again, insulation breakdown is finally caused, even fire occurs, once fire occurs, the cable is in a high-temperature environment for a long time, the conductor is damaged, and the like, so that the electrical performance, signal transmission performance and the like of the cable are greatly affected, the use requirements cannot be continuously met, and the anti-interference effect of the prior art on the cable is poor.
In addition, the insulating layer and the outer sheath material of the high-voltage cable also generally have the problems of poor environmental protection, poor weather resistance and the like, so that faults such as ageing and breakage of the cable are easy to cause, hidden danger is brought to the safe operation of a new energy system, and the safe operation of the cable is seriously threatened.
Disclosure of utility model
The utility model aims to overcome the defects in the prior art and provide the high-shielding anti-interference photoelectric composite high-voltage power cable which has the advantages of high shielding efficiency, small dynamic resistance, low loss, high signal transmission rate, good high-temperature resistance, flame retardance, fire resistance, water resistance, mechanical property, corrosion resistance, aging resistance, weather resistance and the like, is environment-friendly and has long service life.
The technical scheme includes that the high-shielding anti-interference photoelectric composite high-voltage power cable comprises a cable core, wherein the cable core is formed by twisting a plurality of photoelectric composite shielding cables, a nano halogen-free high-flame-retardant filling rope is filled in a gap of the cable core, a semiconductive nylon belt is wrapped outside the cable core, a tinned copper foil inner shielding layer is wrapped outside the semiconductive nylon belt, a flame-retardant inner sheath is arranged outside the tinned copper foil inner shielding layer, a wrapped semiconductive buffer water-blocking composite belt is overlapped outside the flame-retardant inner sheath, vermiculite flame-retardant cloth is wrapped outside the semiconductive buffer water-blocking composite belt, a steel core composite reinforcing layer is arranged outside the vermiculite flame-retardant cloth, a Lyofil ceramic low-smoke halogen-free polyolefin flame-resistant outer sheath is extruded outside the steel core composite reinforcing layer, and the Lyofil ceramic low-smoke halogen-free polyolefin flame-resistant outer sheath is extruded outside the flame-retardant sheath.
Further, the photoelectric composite shielding cable comprises a multimode optical fiber unit and an insulating shielding wire core, and TPU flame-retardant outer covers are extruded outside the multimode optical fiber unit and the insulating shielding wire core.
Further, the insulated shielding wire core comprises an aluminum alloy segmented conductor, and a conductor shielding layer, a grafted modified polypropylene insulating layer and an insulated shielding layer are sequentially and jointly extruded outside the aluminum alloy segmented conductor.
Further, the flame-retardant inner sheath is formed by weaving alkali-free glass fiber or high-bulkiness glass fiber into a tube, coating the outer surface of the tube with organic high-temperature-resistant iron oxide red silica gel, and carrying out high-temperature treatment.
Further, the conductor shielding layer is prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semiconducting inner shielding material with volume resistivity of below 20 ℃ of 20 Ω & cm.
Further, the insulating shielding layer is prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semiconducting external shielding material with volume resistivity of below 20 ℃ of 20 Ω & cm.
The semiconductive buffer water-blocking composite belt comprises a water-blocking belt, a metal wire cloth belt and a semiconductive belt, wherein the metal wire cloth belt is attached to one side of the water-blocking belt, the semiconductive belt is attached to the other side of the water-blocking belt, the semiconductive belt comprises a graphene fiber layer and a semiconductive compound adhesive layer with uniform electrical characteristics, and the semiconductive compound adhesive layer is coated on two sides of the graphene fiber layer.
Further, the vermiculite flame-retardant cloth is composed of glass fiber cloth and vermiculite sizing material layers adhered to the front surface and the back surface of the woven fabric.
Further, the steel core composite reinforcing layer comprises an ethylene propylene diene monomer rubber layer and a circle of reinforcing steel core arranged in the ethylene propylene diene monomer rubber layer.
Compared with the prior art, the utility model has the beneficial effects that:
1. In order to ensure stable and round cable structure, the gaps of the cable core are filled with nano halogen-free high-flame-retardant filling ropes, so that the cable has good burning resistance, continuous flame-retardant combustion is deep, and the flame-retardant grade in the test can reach V-0 grade;
2. the conductor shielding layer is prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semi-conductive inner shielding material with volume resistivity of below 20 ℃ of 20 Ω & cm, the insulation shielding layer is prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semi-conductive outer shielding material with volume resistivity of below 20 ℃ of 20 Ω & cm, and the inner shielding material, the outer shielding material and the semi-conductive strapping tape are both prepared from graphene with excellent conductivity as conductive filler, so that the volume resistivity, the surface resistance, the mechanical property and the thermal stability of the materials are all superior to those of the existing products, the effect of a cable homogenization electric field is greatly improved, partial discharge is prevented, and the reliability and the service life of the cable are improved;
3. The modified polypropylene insulating layer is improved, so that the cable has the advantages of excellent electrical insulation performance, stable insulating effect at higher working temperature, current leakage prevention, safe operation of wires and cables, better mechanical performance such as tensile strength, impact resistance and wear resistance, capability of effectively protecting conductors in the cable, prolonging the service life of the cable, capability of working at higher temperature without performance degradation, suitability for wire and cable application in high-temperature environment such as middle-high voltage wires and cables, low production energy consumption, recycling and the like, accords with the development trend of green low carbon, contributes to reducing environmental pollution, and the modified polypropylene insulating material has higher economic benefit, capability of reducing the manufacturing cost of the wires and cables and improving the market competitiveness of the product due to the excellent performance and lower production cost;
4. The cross-linked polyolefin inner sheath is adopted, so that the cable has excellent weather resistance, oil resistance, ozone resistance and ultraviolet resistance, good wear resistance, high tearing strength and small compression set;
5. The Lyofil cube wave-proof sleeve 9 is arranged outside the steel core composite reinforcement, and the light three-proofing wave-proof sleeve adopting the PBO fiber combined with the metal coating can be used for corrosion protection of cables exposed in acid salt mist for a long time, and has light weight and high toughness;
6. The flame-retardant inner sheath is formed by weaving alkali-free glass fibers or high-bulkiness glass fibers into a tube, then coating the outer surface of the tube with organic high-temperature-resistant iron oxide red silica gel, and carrying out high-temperature treatment, is not damaged by high temperature and flame, has the performances of flame retardance, electricity resistance, softness and the like, is suitable for protecting cables in severe environments, can be continuously exposed to high temperature of 260 ℃ without damage, can resist high temperature of 1000 ℃, can last for half an hour in a 1000 ℃ destructive test, and the outer coating begins to carbonize after half an hour, so that the glass fibers are intact.
In summary, through the improvement, the cable structure has the advantages of high shielding effectiveness, small dynamic resistance, low loss, high signal transmission rate, good high temperature resistance, flame retardance, fire resistance, water resistance, mechanical property, corrosion resistance, aging resistance, weather resistance and the like, is environment-friendly, and has long service life.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the flame retardant inner jacket of the present utility model;
FIG. 3 is a schematic structural view of a semi-conductive buffered water blocking composite tape of the present utility model;
FIG. 4 is a schematic structural view of a vermiculite flame retardant cloth of the present utility model;
Fig. 5 is a schematic structural view of the steel core composite reinforcing layer of the present utility model.
Detailed Description
The present utility model is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the utility model and not limiting of its scope, and various modifications of the utility model, which are equivalent to those skilled in the art upon reading the utility model, will fall within the scope of the utility model as defined in the appended claims.
As shown in fig. 1, the utility model provides a high-shielding anti-interference photoelectric composite high-voltage power cable, which comprises a cable core, wherein the cable core is formed by twisting a plurality of photoelectric composite shielding cables 1;
In the embodiment, the photoelectric composite shielding cable 1 comprises a multimode optical fiber unit 11 and an insulating shielding wire core 12, wherein the multimode optical fiber unit and the insulating shielding wire core are coated with a TPU flame-retardant coating 13 in a co-extrusion mode, the coating has excellent bearing capacity, impact resistance and shock absorption performance, high tensile strength and high elongation, the mechanical performance of the photoelectric composite shielding cable is greatly improved, and in addition, the photoelectric composite shielding cable has wear resistance, oil resistance and corrosion resistance.
In this embodiment, the insulated shielding core includes an aluminum alloy split conductor 121, and a conductor shielding layer 122, a grafted modified polypropylene insulating layer 123, and an insulated shielding layer 124 are co-extruded outside the aluminum alloy split conductor in order.
In the embodiment, in order to further improve various performances of the cable, the conductor shielding layer is prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semi-conductive inner shielding material with volume resistivity of 20 ℃ below 20 Ω & cm, the insulation shielding layer is prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semi-conductive outer shielding material with volume resistivity of 20 ℃ below 20 Ω & cm, and the inner shielding material, the outer shielding material and the semi-conductive strapping tape are both prepared from graphene with excellent conductivity as conductive fillers, so that the volume resistivity, the surface resistance, the mechanical performance and the thermal stability of the materials are superior to those of the existing products, the effect of a cable homogenization electric field is greatly improved, partial discharge is prevented, and the reliability and the service life of the cable are improved.
In the embodiment, the improvement of the grafted modified polypropylene insulating layer is adopted, so that the cable has the advantages of 1, excellent electrical insulation performance, capability of keeping stable insulation effect at a higher working temperature, current leakage prevention, safe operation of wires and cables, 2, better mechanical performance such as tensile strength, impact resistance and wear resistance, capability of effectively protecting conductors inside the cable, prolonging the service life of the cable, 3, capability of working at a higher temperature without performance degradation, suitability for wire and cable applications in high-temperature environments such as medium-high voltage wires and cables, 4, low production energy consumption, recycling and the like, conforms to the development trend of green low carbon, is beneficial to reducing environmental pollution, 5, because of the excellent performance and lower production cost of the grafted modified polypropylene insulating material, has higher economic benefit, can reduce the manufacturing cost of the wires and cables, and improves the market competitiveness of the products.
In this embodiment, the multimode optical fiber unit is composed of a multimode optical fiber 111, a glass fiber ribbon 112 wrapped outside the multimode optical fiber, a poly-perfluoroethylene propylene insulating layer 113 extruded outside the glass fiber ribbon, and a loose tube 114 wrapped outside the poly-perfluoroethylene propylene insulating layer, wherein the glass fiber ribbon is wrapped on the multimode optical fiber to prevent the multimode optical fiber from being oxidized, and to enable the whole multimode optical fiber unit to have excellent performances of high temperature resistance, insulation, fire resistance, corrosion resistance, aging resistance, weather resistance, high strength, and secondly, the poly-perfluoroethylene propylene insulating layer enables the optical fiber unit itself to have good performances of electrical insulation, wear resistance, water resistance, high temperature resistance, impulse interference resistance and the like, so that the stability of a conductor transmission signal is ensured, and in addition, the loose tube protects the optical fiber from the influence of internal stress and external side pressure.
In the embodiment, in order to ensure stable and round cable structure, the nano halogen-free high flame retardant filling rope 2 is filled in the gap of the cable core, so that the cable has good burning resistance, continuous flame retardant combustion is deep, and the flame retardant grade can reach V-0 grade in the test;
The cable core is wrapped with a semi-conductive nylon belt 3 which is used for binding conductors of cable cores so as to reduce electromagnetic interference and improve the overall performance of the cable, the semi-conductive nylon belt is wrapped with a tinned copper foil inner shielding layer 4, so that the shielding performance of the cable is good, the bending performance, oxidation resistance and fatigue resistance of the cable are enhanced, the tinned copper foil inner shielding layer is externally provided with a flame-retardant inner sheath 5 which is used for guaranteeing the flame retardance of the cable, the flame-retardant inner sheath is externally overlapped with a semi-conductive buffer water-blocking composite belt 6 which is wrapped with a vermiculite flame-retardant cloth 7, the vermiculite flame-retardant cloth is externally provided with a steel core composite reinforcing layer 8, the steel core composite reinforcing layer is externally provided with a Lyofil wave-proof sleeve 9, and the cable is light in weight three-proof wave-proof sleeve adopting PBO fiber and metal coating, can be used for corrosion protection of the cable exposed to acid salt fog for a long time, and has light weight and high toughness;
the ceramic low-smoke halogen-free polyolefin fireproof outer sheath 10 is extruded outside the Lyofil cube-shaped wave-proof sleeve, a hard ceramic-shaped hard shell can be generated at a high temperature of more than 650 ℃, the hard shell is not melted and dripped, water spraying resistance and mechanical vibration resistance are realized, and the ceramic-free low-smoke halogen-free polyolefin fireproof outer sheath has a very good heat insulation effect, and achieves the purposes of fire prevention and flame retardance.
In this embodiment, as shown in fig. 2, the flame retardant inner sheath 5 is formed by weaving a tube 51 from alkali-free glass fiber or high-bulkiness glass fiber, and then coating an organic high-temperature resistant iron oxide red silica gel 52 on the outer surface of the tube, which is not damaged by high temperature and flame, and has the properties of flame retardance, electrical resistance, softness and the like, so that the flame retardant inner sheath is suitable for protecting cables in severe environments, can be continuously exposed to high temperature of 260 ℃ and not damaged, can resist high temperature of 1000 ℃, can last half an hour in a 1000 ℃ destructive test, and the outer coating begins to carbonize after half an hour, and the glass fiber is intact.
In this embodiment, as shown in fig. 3, the semiconductive buffer water-blocking composite tape 6 comprises a water-blocking tape 61, a metal wire cloth tape 62 and a semiconductive tape 63, wherein the metal wire cloth tape 62 is attached to one side of the water-blocking tape 61, and the semiconductive tape 63 is attached to the other side of the water-blocking tape 61;
In addition, the metal wire cloth belt plays a role in shielding, and the electric field generated by the metal wire cloth belt is very strong because the voltage in the high-voltage and ultra-high-voltage cable is very high, so that the shielding layer formed by the metal wire cloth belt can effectively prevent the interference of the high-voltage and ultra-high-voltage cable to the outside, on the other hand, the metal wire cloth belt can be used as a channel for passing capacitive current in normal operation, and on the other hand, the metal wire cloth belt can also be used as a channel for short-circuit current when a short circuit occurs in a system.
In this embodiment, as shown in fig. 4, the vermiculite flame retardant cloth 7 is composed of glass fiber cloth 71 and vermiculite adhesive layers 72 adhered on the front and back sides of the woven fabric, and has a high fire resistance function, so that the fire resistance of the cable is greatly improved.
In this embodiment, as shown in fig. 5, the steel core composite reinforcing layer 8 includes an ethylene propylene diene monomer rubber layer 81 and a circle of reinforcing steel core 82 arranged in the ethylene propylene diene monomer rubber layer, compared with the original steel tape armor layer, the steel core composite reinforcing layer has light weight and low cost, enhances the mechanical protection such as tensile strength, compressive strength and the like, prolongs the service life of the cable, and in addition, the ethylene propylene diene monomer rubber has excellent weather resistance, ozone resistance, heat resistance and acid and alkali resistance, not only protects the reinforced steel core from being corroded, but also enables the cable to have corresponding weather resistance, ozone resistance, heat resistance and acid and alkali resistance.
In summary, through the improvement, the cable structure has the advantages of high shielding effectiveness, small dynamic resistance, low loss, high signal transmission rate, good high temperature resistance, flame retardance, fire resistance, water resistance, mechanical property, corrosion resistance, aging resistance, weather resistance and the like, is environment-friendly, and has long service life.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that variations and modifications could be made by those skilled in the art without departing from the principles of the present utility model, which would also be considered to fall within the scope of the utility model.
Claims (10)
1. A high-shielding anti-interference photoelectric composite high-voltage power cable is characterized by comprising a cable core, wherein the cable core is formed by twisting a plurality of photoelectric composite shielding cables (1), a nano halogen-free high-flame-retardant filling rope (2) is filled in a gap of the cable core, a semiconductive nylon belt (3) is wrapped outside the cable core, a tinned copper foil inner shielding layer (4) is wrapped outside the semiconductive nylon belt, a flame-retardant inner sheath (5) is arranged outside the tinned copper foil inner shielding layer, a wrapped semiconductive buffer water-blocking composite belt (6) is overlapped outside the flame-retardant inner sheath, a vermiculite flame-retardant cloth (7) is wrapped outside the semiconductive buffer water-blocking composite belt, a steel core composite reinforcing layer (8) is arranged outside the vermiculite flame-retardant cloth, a Lyofil wave-proof sleeve (9) is arranged outside the steel core composite reinforcement, and a ceramic low-smoke halogen-free polyolefin flame-resistant sheath (10) is wrapped outside the Lyofil wave-proof sleeve.
2. The high-shielding anti-interference photoelectric composite high-voltage power cable according to claim 1, wherein the photoelectric composite shielding cable (1) comprises a multimode optical fiber unit (11) and an insulating shielding wire core (12), and TPU flame-retardant coatings (13) are extruded outside the multimode optical fiber unit and the insulating shielding wire core.
3. The high-shielding anti-interference photoelectric composite high-voltage power cable according to claim 2, wherein the insulated shielding wire core comprises an aluminum alloy segmented conductor (121), and a conductor shielding layer (122), a grafted modified polypropylene insulating layer (123) and an insulating shielding layer (124) are sequentially and jointly extruded outside the aluminum alloy segmented conductor.
4. The high-shielding anti-interference photoelectric composite high-voltage power cable according to claim 2, wherein the multimode optical fiber unit is composed of multimode optical fibers (111), a glass fiber ribbon (112) wrapped outside the multimode optical fibers, a poly-perfluoroethylene propylene insulating layer (113) extruded outside the glass fiber ribbon and a loose tube (114) wrapped outside the poly-perfluoroethylene propylene insulating layer.
5. The high-shielding anti-interference photoelectric composite high-voltage power cable according to claim 1, wherein the flame-retardant inner sheath (5) is formed by weaving alkali-free glass fibers or high-bulkiness glass fibers into a tube (51), and then coating the outer surface of the tube with organic high-temperature-resistant iron oxide red silica gel (52) for high-temperature treatment.
6. The high-shielding anti-interference photoelectric composite high-voltage power cable of claim 3, wherein the conductor shielding layer (122) is prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semiconducting inner shielding material with volume resistivity of below 20 ℃ of 20 Ω & cm.
7. The high-shielding anti-interference photoelectric composite high-voltage power cable of claim 3, wherein the insulating shielding layer (124) is an insulating shielding layer prepared from ultra-clean ultra-smooth crosslinked graphene composite high-semiconducting outer shielding material with volume resistivity of below 20 ℃ of 20 Ω & cm.
8. The high-shielding anti-interference photoelectric composite high-voltage power cable according to claim 1, wherein the semiconductive buffer water-blocking composite belt (6) comprises a water-blocking belt (61), a metal wire cloth belt (62) and a semiconductive belt (63), the metal wire cloth belt (62) is attached to one side of the water-blocking belt (61), the semiconductive belt (63) is attached to the other side of the water-blocking belt (61), the semiconductive belt (63) comprises a graphene fiber layer (631), and the semiconductive compound adhesive layer (632) with uniform electrical characteristics is coated on two sides of the graphene fiber layer.
9. The high-shielding anti-interference photoelectric composite high-voltage power cable according to claim 1, wherein the vermiculite flame retardant cloth (7) is composed of glass fiber cloth (71) and vermiculite adhesive layers (72) adhered on the front side and the back side of the woven fabric.
10. The high-shielding anti-interference photoelectric composite high-voltage power cable according to claim 1, wherein the steel core composite reinforcing layer (8) comprises an ethylene propylene diene monomer rubber layer (81) and a circle of reinforcing steel core (82) arranged in the ethylene propylene diene monomer rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423213498.8U CN223770861U (en) | 2024-12-25 | 2024-12-25 | A high-shielding, anti-interference type optoelectronic composite high-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423213498.8U CN223770861U (en) | 2024-12-25 | 2024-12-25 | A high-shielding, anti-interference type optoelectronic composite high-voltage power cable |
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| Publication Number | Publication Date |
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| CN223770861U true CN223770861U (en) | 2026-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202423213498.8U Active CN223770861U (en) | 2024-12-25 | 2024-12-25 | A high-shielding, anti-interference type optoelectronic composite high-voltage power cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN223770861U (en) |
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- 2024-12-25 CN CN202423213498.8U patent/CN223770861U/en active Active
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