High-iron aluminum alloy cable

Abstract

The utility model is suitable for the technical field of cables, and provides a high-iron aluminum alloy cable, which comprises a cable main body, and the cable main body is sequentially provided with a high-iron rare earth aluminum alloy conductor, an insulating layer, a second shielding layer, a steel belt layer, a first shielding layer and an outer protection layer from inside to outside. A plurality of electric heat conduction wires are arranged in the heat conduction shell and are distributed along the length direction of the cable main body; the heat conduction blocks are arranged on the inner wall of the heat conduction shell; the fins are arranged on the outer wall of the heat conduction shell; and the filling layer is arranged in the cable main body and is positioned between the high-iron rare earth aluminum alloy conductor and the insulating layer. According to the high-iron aluminum alloy cable provided by the scheme, the problem that an existing cable is easy to freeze is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable technical field especially relates to a high -speed rail aluminum alloy cable. BACKGROUND

[0002] With the rapid development of high-speed rail technology, the high-speed rail network is increasingly large, and its safety and reliability in operation are of great concern. As a key transmission component of the high-speed rail system, the cable plays a crucial role.

[0003] At present, the high-speed rail aluminum alloy cable disclosed in the authorized patent No. CN205911027U focuses on the performance of fire resistance, insulation, and rat prevention in the structural design. It comprises a cable core by wrapping a fire-resistant mica layer, a foaming layer, an insulation layer, etc. in sequence outside the three high-speed rail rare earth aluminum alloy conductors, and further comprises a CPP tight band layer, an oxygen barrier layer, a heat insulation layer, a steel band layer, a non-magnetic steel wire rat prevention layer, and an outer protective layer, etc. The multi-layer protective structure guarantees the normal use performance of the cable in many aspects and is also conducive to popularization and application. However, in the actual high-speed rail operation scenario, especially in some high-cold regions or sections where low-temperature rain and snow weather easily occurs in winter, the existing high-speed rail aluminum alloy cable is troubled by icing problems. When the surface of the cable is iced, it will increase the weight of the cable itself, bringing additional load to the suspension and support structure of the cable, which may lead to structural deformation or even damage over a long period of time, affecting the normal laying and safe use of the cable. SUMMARY

[0004] The utility model provides a kind of high-speed rail aluminum alloy cable, to solve the problem of current cable icing easily.

[0005] The utility model is realized as follows: a kind of high-speed rail aluminum alloy cable, comprising: cable main body, the cable main body is sequentially provided with high-speed rail rare earth aluminum alloy conductor, insulation layer, second shielding layer, steel band layer, first shielding layer and outer protective layer from inside to outside;Heat conduction shell is arranged between the outer protective layer and the first shielding layer, a plurality of electric heating wires are arranged in the heat conduction shell, and the electric heating wires are distributed along the length direction of the cable main body;A plurality of heat conduction blocks are arranged on the inner wall of the heat conduction shell and a plurality of fins are arranged on the outer wall;Filler layer is arranged in the cable main body, and the filler layer is located between the high-speed rail rare earth aluminum alloy conductor and the insulation layer.

[0006] Preferably, Y-shaped steel bars for separating space are further arranged in the cable main body, filler layers are arranged in the spaces separated by the Y-shaped steel bars, and the filler layers are used to protect the high-speed rail rare earth aluminum alloy conductor and the insulation layer.

[0007] Preferably, the electric heating wires are resistance wires, which are powered by an external power supply.

[0008] Preferably, an arc-shaped groove is formed on the heat-conducting block, and an inner wall of the arc-shaped groove is in contact with the electric heat-conducting wire.

[0009] Preferably, the material of the filling layer is water-blocking yarn, and the insulating layer is LCP.

[0010] Preferably, the outer protective layer is made of fluoroplastic, and the gap between the first shielding layer and the second shielding layer is filled with rubber.

[0011] Preferably, a heat-insulating layer is arranged between the heat-conducting shell and the first shielding layer, and the heat-insulating layer is made of aerogel material.

[0012] Compared with the related art, the high-speed rail aluminum alloy cable has the following beneficial effects:

[0013] The acid and alkali resistant high-speed rail rare earth aluminum alloy conductor ensures stable current transmission, adapts to the acid and alkali corrosion environment in high-speed rail operation, and provides stable power basis for the entire cable system; the insulating layer insulates the current, prevents electric leakage, ensures electrical safety, and avoids harm to other equipment and personnel of the high-speed rail; the first shielding layer and the second shielding layer cooperatively block external electromagnetic interference, so that the electrical signal transmitted by the cable is stable and pure, and the normal operation and operation control of the high-speed rail precision electronic equipment are ensured; the steel belt layer provides mechanical strength support to resist external forces such as pulling and extrusion, protects the integrity of the internal structure of the cable, and prevents breakage and damage; the outer protective layer has wear resistance, corrosion resistance and weather resistance, and resists wind and sand, rain and daily friction, prolonging the service life of the cable; the heat-conducting shell and the electric heat-conducting wire inside the heat-conducting shell generate heat under high-cold or low-temperature rainy and snowy weather, uniformly disperse heat in combination with the heat-conducting block, prevent the cable from icing, avoid damage to the suspension and support structure due to icing weight increase, and ensure the safety of cable laying and use; under normal temperature, the fin on the outer wall of the heat-conducting shell helps heat dissipation, and maintains appropriate working temperature; the filling layer fills the gap and buffers external force, stabilizes the internal structure of the cable, protects the high-speed rail rare earth aluminum alloy conductor and the insulating layer, and improves electrical stability and mechanical stability; the Y-shaped steel strip separates the space, makes the filling layer distributed in order, accurately fills the gap, avoids internal looseness, and at the same time provides additional support force, cooperates with the steel belt layer to disperse external force, improves the overall stability of the cable, and ensures reliable power transmission; the electric heat-conducting wire adopts resistance wire and is externally connected to a power supply, can flexibly regulate and control heat generation according to environmental temperature, efficiently heats up, quickly responds to low-temperature icing risk, saves energy, and adapts to complex climate in all directions; the arc-shaped groove on the heat-conducting block is in close contact with the electric heat-conducting wire, increases the contact area, optimizes the heat transfer process, ensures stable and continuous heat transfer, effectively prevents ice formation, and ensures normal operation of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 A front view cross-sectional structure schematic diagram of the high-speed rail aluminum alloy cable is provided.

[0015] Fig. 2 It is the main view structural schematic drawing of the heat conduction shell in the utility model.

[0016] Reference signs: 1, cable main body;2, outer sheath;3, heat conduction shell;4, electric heat wire;5, first shielding layer;6, second shielding layer;7, steel band layer;8, Y-shaped steel strip;9, high-iron rare earth aluminum alloy conductor;10, insulation layer;11, heat conduction block;12, fin;13, filling layer. DETAILED DESCRIPTION

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description and the drawings are to be regarded as illustrative in nature and are not intended to limit the application; the terminology used in the description and the claims of the present application, and the above description of the drawings, is intended to be interpreted in only an illustrative way, and is not intended to limit the present application; the terms "comprising", "having", "including", and "containing" used in the description and the claims of the present application are intended to be inclusive or open-ended and not restrictive; the terms "first", "second", and the like used in the description and the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order.

[0018] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are merely examples from a whole class of comparable embodiments which those skilled in the art will readily appreciate. It is also expressly understood that the description and the claims are intended to cover any and all combinations of one or more embodiments with another found or developed in the future.

[0019] The utility model embodiment provides a kind of high-iron aluminum alloy cable, as shown in figure Figs. 1-2 The utility model discloses a kind of high-iron aluminum alloy cable, as shown in figure It includes: cable main body 1, the cable main body 1 is sequentially provided with high-iron rare earth aluminum alloy conductor 9, insulation layer 10, second shielding layer 6, steel band layer 7, first shielding layer 5 and outer sheath 2 from inside to outside;Heat conduction shell 3 is arranged between the outer sheath 2 and the first shielding layer 5, a plurality of electric heat wires 4 are arranged in the heat conduction shell 3, and the electric heat wires 4 are distributed along the length direction of cable main body 1;A plurality of heat conduction blocks 11 are arranged on the inner wall of the heat conduction shell 3 and a plurality of fins 12 are arranged on the outer wall;Filling layer 13 is arranged in cable main body 1, and the filling layer 13 is located between high-iron rare earth aluminum alloy conductor 9 and insulation layer 10.

[0020] In this embodiment, the cable body 1 has a fine structure design from the inside to the outside. First, the acid and alkali resistant high-iron rare earth aluminum alloy conductor 9, as the core part, has good electrical conductivity and acid and alkali resistance, which can adapt to various acid and alkali corrosion in high-iron running environment and ensure stable transmission of current. The insulating layer 10 wrapped outside the high-iron rare earth aluminum alloy conductor 9 plays a key role in isolating current and preventing electric leakage, ensuring electrical safety of the cable and avoiding harm to other equipment and personnel in the high-speed rail system. The second shielding layer 6 further enhances the shielding performance of the cable, effectively blocking external electromagnetic interference and making the transmitted electrical signals more stable and pure, which is crucial for the normal operation of various precision electronic devices in high-speed rail operation and prevents electromagnetic interference from affecting the operation control of high-speed rail. The steel belt layer 7 provides strong support for the mechanical strength of the cable. During high-speed rail operation, the cable may be subjected to various external forces such as pulling and squeezing. The steel belt layer 7 can resist these external forces, protect the internal structural integrity, and ensure that the cable will not easily break or be damaged. The first shielding layer 5 also plays a role in shielding electromagnetic interference and works with the second shielding layer 6 to double-protect the stability of the cable transmission signal and provide reliable power transmission lines for high-speed rail communication and control systems. The outer protective layer 2, as the outermost protective layer of the cable, directly contacts the external environment and has various properties such as wear resistance, corrosion resistance, and weather resistance, which can resist wind and sand erosion, rainwater erosion, and daily friction loss along the high-speed rail, prolonging the service life of the cable. The heat-conducting shell 3 is arranged between the outer protective layer 2 and the first shielding layer 5, and the multiple electrically conductive heating wires 4 distributed along the length direction of the cable body 1 inside the heat-conducting shell 3 are of great significance. In cold regions or low-temperature rainy and snowy weather, when the surface temperature of the cable is too low and may freeze, the electrically conductive heating wires 4 can quickly generate heat after being powered on, and the heat is transferred through the heat-conducting shell 3. The multiple heat-conducting blocks 11 on the inner wall of the heat-conducting shell 3 can quickly and evenly distribute the heat generated by the electrically conductive heating wires 4 to all parts of the cable, ensuring a wider heat coverage and efficiently raising the overall temperature of the cable to effectively prevent icing.The plurality of fins 12 on the outer wall increases the contact area with the outside cold air, and in a normal temperature environment, if the cable generates heat due to operation, the fins 12 help to dissipate heat to the air, maintain the appropriate working temperature of the cable, and ensure the stability of the performance; the filling layer 13 is located between the high-iron rare earth aluminum alloy conductor 9 and the insulation layer 10, which plays a role in filling the gap, makes the internal structure of the cable more compact, avoids friction, displacement and other problems caused by internal looseness in the vibration environment; on the other hand, the filling layer 13 also has certain buffering performance, can buffer the influence of external impact force on the internal conductor, further guarantees the stability and safety of the cable; in summary, the high-iron aluminum alloy cable cooperates with each layer structure, especially the special design for the high-cold region, and comprehensively guarantees the normal use performance, electrical safety, mechanical strength and the ability to cope with severe weather of the cable in the high-speed rail operating environment, and effectively promotes the application of the cable in the high-speed rail construction.

[0021] In a further preferred embodiment of the utility model, the cable main body 1 is further provided with Y-shaped steel strip 8 for separating space, the space separated by Y-shaped steel strip 8 is provided with filling layer 13, and the filling layer 13 is used for protecting high-iron rare earth aluminum alloy conductor 9 and insulation layer 10.

[0022] In the present embodiment, the Y-shaped steel strip 8 is introduced, which is ingeniously arranged in the cable main body 1. The primary role of the Y-shaped steel strip 8 is to separate space, and its unique Y-shaped design can divide the relatively regular space inside the cable into multiple independent areas; the spaces separated by the Y-shaped steel strip 8 are provided with the filling layer 13, which plays a key role in protecting the high-speed rail rare earth aluminum alloy conductor 9 and the insulation layer 10 in this structural system. On the one hand, due to the separation of space, the distribution of the filling layer 13 is more orderly and stable, which can more accurately fill the gaps in each area, avoid the loosening of the internal structure caused by the vibration of the cable during transportation, installation and long-term operation, and further prevent the problems such as friction and displacement between the high-speed rail rare earth aluminum alloy conductor 9 and the insulation layer 10 caused by loosening, thereby ensuring the electrical stability of the cable; on the other hand, the Y-shaped steel strip 8 itself has a certain mechanical strength, which can provide additional support force for the overall structure of the cable. During the operation of the high-speed rail, the cable may be subjected to various complex external forces, such as airflow impact caused by high-speed train running, slight collision of surrounding equipment, etc., the Y-shaped steel strip 8 can cooperate with structures such as the steel belt layer 7 to disperse these external forces, reduce the direct impact on the internal high-speed rail rare earth aluminum alloy conductor 9 and the insulation layer 10, further improve the mechanical stability of the cable, and ensure the continuous and reliable power transmission, thereby comprehensively assisting the safe and stable operation of the high-speed rail system; in summary, the combined design of the Y-shaped steel strip 8 and the filling layer 13 optimizes the internal structure of the cable and strengthens the protection function, thereby protecting the high-speed rail aluminum alloy cable from various aspects to adapt to the complex and changeable high-speed rail operating environment.

[0023] In a further preferred embodiment of the utility model, the electrically conductive heating wire 4 is a resistance wire, which is powered by an external power supply.

[0024] In the embodiment, it is clear that the electrically conductive heating wire 4 is a resistance wire and is powered by an external power source. As one of the core components for preventing the cable from icing in a high-cold environment, the electrically conductive heating wire 4 has many advantages by using a resistance wire. The characteristics of the resistance wire enable it to convert electrical energy into heat energy efficiently according to Joule's law after being powered on. When the high-speed rail runs in a high-cold region or encounters low-temperature rainy and snowy weather, the surface temperature of the cable drops sharply and there is a risk of icing, the external power source powers the electrically conductive heating wire 4 in the form of a resistance wire, and the heat generated by the electrically conductive heating wire 4 can be quickly transmitted through the heat-conducting shell 3 closely connected thereto. As described above, the plurality of heat-conducting blocks 11 on the inner wall of the heat-conducting shell 3 will evenly disperse the heat to all parts of the cable, ensuring that the temperature around the key structures such as the high-speed rail rare earth aluminum alloy conductor 9 and the insulation layer 10 increases, effectively preventing ice formation and ensuring the normal operation of the cable. At the same time, since the electrically conductive heating wire 4 can accurately and quickly generate heat, compared with some slow heating methods relying on the natural environment, the efficiency of dealing with low-temperature environments is greatly improved, avoiding the increase in weight due to cable icing, which brings additional load to the cable suspension and support structure (such as the steel belt layer 7), thereby preventing structural deformation and even damage, and maintaining the laying state and safety of the cable. Moreover, the power supply mode through the external power source makes the heat generation flexible to control according to actual needs. When the temperature is slightly low but has not reached the icing critical point, the power supply power can be appropriately reduced to save energy; once the temperature drops sharply and the icing risk increases, the power supply can be increased in time to ensure that the cable is always in an appropriate working temperature range. The above-mentioned electrically conductive heating wire 4 in the form of a resistance wire combined with the power supply design of an external power source provides a strong guarantee for the reliable operation of the high-speed rail aluminum alloy cable in a low-temperature environment, and further optimizes the performance of the cable.

[0025] In the further preferred embodiment of the utility model, the heat-conducting block 11 is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is in contact with the electrically conductive heating wire 4.

[0026] In the embodiment, the arc-shaped groove is formed on the heat-conducting block 11, and the inner wall of the arc-shaped groove is in close contact with the electric heat-conducting wire 4. The electric heat-conducting wire 4 is a key heating component for heating the cable and preventing icing in a high-cold environment, and efficient heat transfer of the electric heat-conducting wire 4 is crucial. The heat-conducting block 11 is responsible for uniformly dispersing the heat generated by the electric heat-conducting wire 4 to all parts of the cable. The design of the arc-shaped groove further optimizes the heat transfer process. The shape of the arc-shaped groove is naturally adapted to the electric heat-conducting wire 4, increasing the contact area between the two. Compared with planar contact, the arc-shaped groove can more efficiently capture the heat emitted by the electric heat-conducting wire 4. When the electric heat-conducting wire 4 is powered and heated, the heat is quickly conducted to the main body of the heat-conducting block 11 through the inner wall of the arc-shaped groove. As mentioned earlier, the heat-conducting block 11 then uniformly disperses the heat to the inside of the cable, ensuring that the temperature around the key parts such as the high-speed rail rare earth aluminum alloy conductor 9 and the insulation layer 10 rises rapidly, effectively preventing the formation of ice and ensuring the normal operation of the cable. This close and efficient contact also makes the heat transfer more stable and continuous. During high-speed rail operation, the external low-temperature environment is variable. If the heat transfer is unstable and the temperature of the cable is uneven, icing hazards may still occur.

[0027] In a further preferred embodiment of the utility model, the material of the filling layer 13 is water-blocking yarn, and the insulation layer 10 is LCP.

[0028] In the embodiment, the material of the filling layer 13 is selected to be water-blocking yarn, and the insulating layer 10 is selected to be LCP, which are unique designs. First, the filling layer 13 is located inside the cable and plays a role in filling gaps and protecting key structures. When the water-blocking yarn is selected as the material, its advantages are obvious. The water-blocking yarn can effectively prevent water from penetrating into the inside of the cable. Even if the outer layer of the cable is slightly damaged, the water-blocking yarn can prevent water from further eroding and prevent water from contacting the high-iron rare earth aluminum alloy conductor 9 to cause corrosion problems, thereby ensuring the stable conductivity of the conductor and protecting the insulating layer 10 from moisture to maintain its insulation effect, prevent the risk of electric shock, and ensure the electrical safety of the cable. The insulating layer 10 is selected to be LCP (liquid crystal polymer) material. LCP has excellent insulation performance. Compared with some traditional insulation materials, it can work stably at a wider temperature range and at a higher voltage. For the complex electrical environment of high-speed rail operation, whether it is stable power supply during normal operation or dealing with sudden voltage fluctuations, electromagnetic interference and other situations, the LCP insulating layer 10 can reliably isolate the current and protect the internal electrical signal transmission from external interference to ensure the normal operation of the high-speed rail system. Moreover, LCP also has good mechanical properties. It can enhance the flexibility and strength of the cable as a whole. Under the action of external forces such as vibration and pulling during high-speed rail travel, the insulating layer 10 is not easy to be damaged, and cooperates with the steel belt layer 7 and other structures to further protect the internal high-iron rare earth aluminum alloy conductor 9, so that the cable always maintains good performance during long-term use, avoids power failure caused by damage to the insulating layer 10, and provides a solid guarantee for the safe and efficient operation of the high-speed rail. In summary, the design of the filling layer 13 using water-blocking yarn and the insulating layer 10 using LCP strengthens the performance of the high-speed aluminum alloy cable from the aspects of waterproofing, insulation, and mechanical properties, and fully adapts to the complex and variable operating conditions of high-speed rail to reliably ensure the operation of the cable.

[0029] In further preferred embodiments of the present application, the outer protective layer 2 is made of fluoroplastic, and the gap between the first shielding layer 5 and the second shielding layer 6 and the steel belt layer 7 is filled with rubber.

[0030] In the embodiment, the outer protective layer 2 is made of fluoroplastic, which is a highlight of the design. As the outermost layer of the cable, the outer protective layer 2 directly contacts with various complex environments. Fluoroplastic has super strong weather resistance, which can effectively resist ultraviolet radiation of sunlight for a long time, acid rain erosion, and wind and sand abrasion. Under different climate conditions along the high-speed rail, such as in the high-salt-mist coastal area, the fluoroplastic outer protective layer 2 can maintain its performance stability, greatly prolonging the service life of the cable. Meanwhile, fluoroplastic also has excellent chemical stability, which can resist corrosion of many chemicals, avoid damage of the cable due to contact with oil stains, chemical agents and the like along the line, and further protect the structural integrity of the cable, providing reliable protection for the internal layers. The gap between the first shielding layer 5 and the second shielding layer 6 is filled with rubber, which plays a key role in buffering and shock absorption.

[0031] In a further preferred embodiment of the utility model, a heat insulation layer is arranged between the heat-conducting shell 3 and the first shielding layer 5, and the heat insulation layer is made of aerogel material.

[0032] In the embodiment, the heat insulation layer made of aerogel material plays a crucial role in heat insulation. When the external environment temperature is high, such as in the summer high-temperature period or the case where the surrounding temperature rises due to heat dissipation of the high-speed rail operation equipment, the heat insulation layer can effectively block the conduction of external heat to the inside of the cable. It can avoid the temperature of the high-speed rail rare earth aluminum alloy conductor 9, the insulation layer 10 and other key components inside the cable from being too high due to external high temperature, thereby ensuring the performance stability of these components, preventing problems such as material aging and insulation performance degradation caused by high temperature, and ensuring normal power supply of the cable.

[0033] In summary, the acid and alkali resistant high-speed rail rare earth aluminum alloy conductor 9 stably supplies current and adapts to acid and alkali environments; the insulation layer 10 prevents electric leakage and ensures electrical safety; the first shielding layer 5 and the second shielding layer 6 block electromagnetic interference and protect electrical signals; the steel belt layer 7 resists external force and protects the internal structure; the outer protective layer 2 is wear-resistant, corrosion-resistant and weather-resistant, prolonging the service life; the heat-conducting shell 3 and the electric heat-conducting wire 4 generate low-temperature heat and normal-temperature heat, prevent icing, keep warm, and protect laying and use safety; the filler layer 13 fills gaps and buffers, stabilizes the structure and protects key components; the Y-shaped steel strip 8 fills the filler layer 13 and helps resist external force, improving stability; the resistance wire type electric heat-conducting wire 4 is connected to a power source, controls heat as needed, generates low-temperature heat efficiently, and the arc-shaped groove of the heat-conducting block 11 optimizes heat transfer and prevents icing to ensure operation.

[0034] In several embodiments provided in the application, it should be understood that the disclosed device can be implemented in other ways.

[0035] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Obviously, the described examples are only some of the embodiments of the present application, not all the embodiments. Based on these examples, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above examples, those of ordinary skill in the art can still combine, add or delete the features in the embodiments of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also fall within the scope of the present application.

Claims

1. A high iron aluminum alloy cable, characterized by, The utility model relates to a high temperature resistant cable, comprising: a cable body, which is sequentially provided from inside to outside with a high-iron-rare-earth-aluminum alloy conductor, an insulation layer, a second shielding layer, a steel strip layer, a first shielding layer and an outer protective layer: a heat-conducting shell provided between the outer protective layer and the first shielding layer, the heat-conducting shell being provided with a plurality of electric heat-conducting wires inside, the electric heat-conducting wires being distributed along the length direction of the cable body; a plurality of heat-conducting blocks provided on the inner wall of the heat-conducting shell and a plurality of fins provided on the outer wall of the heat-conducting shell; a filling layer provided in the cable body, the filling layer being located between the high-iron-rare-earth-aluminum alloy conductor and the insulation layer.

2. The high iron aluminum alloy cable of claim 1, wherein, The cable body is further provided with a Y-shaped steel strip for separating space, the space separated by the Y-shaped steel strip being provided with a filling layer, the filling layer being used for protecting the high-iron-rare-earth-aluminum alloy conductor and the insulation layer.

3. The high iron aluminum alloy cable of claim 1, wherein, The electric heat-conducting wires are resistance wires, which are powered by an external power supply.

4. The high iron aluminum alloy cable of claim 1, wherein, Arc-shaped grooves are formed on the heat-conducting blocks, the inner walls of the arc-shaped grooves being in contact with the electric heat-conducting wires.

5. The high iron aluminum alloy cable of claim 1, wherein, The material of the filling layer is water-blocking yarn, and the insulation layer is LCP.

6. The high iron aluminum alloy cable of claim 1, wherein, The outer protective layer is made of fluoroplastic, and the gap between the first shielding layer and the second shielding layer and the steel strip layer is filled with rubber.

7. The high iron aluminum alloy cable of claim 1, wherein, A heat-insulating layer is provided between the heat-conducting shell and the first shielding layer, the heat-insulating layer being made of aerogel material.

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