A kind of high flame-retardant green environmental protection cable

Abstract

The application discloses a kind of green environmental protection cable with high flame-retardant performance, and relates to the technical field of green environmental protection cable.The present application includes core wire, rubber sleeve combination, shielding structure, flame-retardant heat-resistant layer, flame-retardant heat-conducting layer and flame-retardant outer sheath;The rubber sleeve combination includes rubber sleeve section and connecting rubber strip, and the rubber sleeve section is cylindrical rubber strip, and a plurality of cylindrical grooves are evenly arranged on the wall of the cylindrical rubber strip;The shielding structure includes a shielding braided copper layer and a fastening rubber layer;The flame-retardant heat-resistant layer includes a plurality of layers of braided flame-retardant fiber layer;The flame-retardant heat-conducting layer is woven with metal strips outside the flame-retardant heat-resistant layer, and then a layer of flame-retardant outer sheath is wrapped outside the flame-retardant heat-conducting layer using an extrusion molding device.The present application arranges the core wire in order by rubber sleeve combination, sets multiple layers of fiber layer with extremely high flame-retardant property to prevent heat from transferring to the inside, and solves the problem of poor blocking effect of existing flame-retardant cable, which easily leads to high internal temperature, hot core wire, and high local heat during the flame-retardant process.

Description

Technical Field

[0001] This invention belongs to the field of green and environmentally friendly cable technology, and in particular relates to a green and environmentally friendly cable with high flame retardant performance. Background Technology

[0002] With the continuous progress of human society, people's awareness of environmental protection has gradually increased. Ecological environment, environmentally friendly products, "green" food, and "green" projects have become focal points of attention. In the wire and cable industry, especially in building interiors, more and more industry regulations and product standards require cables to be green and environmentally friendly, low-smoke, halogen-free, low-toxicity, flame-retardant, and fire-resistant. Furthermore, green wires and cables should possess the following characteristics: 1. The raw materials and auxiliary materials used in manufacturing should not pollute the surrounding environment; 2. The wire and cable materials should not contain halogens such as bromine and fluorine, and should not produce secondary pollution such as harmful or corrosive gases in emergency situations; 3. They should produce low smoke during combustion and have good flame retardancy; 4. They should not contain heavy metals such as lead and cadmium that can have harmful effects on the environment, should not contain endocrine disruptors, and should not pollute the soil; 5. The wires and cables should be recyclable after disposal, and should not cause harm to the environment when buried or incinerated.

[0003] Repairing burned cables is troublesome. If the flame retardancy is poor, it can burn the internal core wires, greatly increasing the cost of repairing them. Existing flame-retardant layers only provide flame retardancy and do not have rapid heat dissipation capabilities, causing excessive heat to accumulate inside the cable and potentially damaging the internal core wires.

[0004] When multiple cables are arranged in the same cable, it is difficult to ensure that there is space between the cables after wrapping them with an outer sheath. Often, multiple cables are wrapped together side by side, resulting in a messy arrangement and leaving gaps and air inside the cable. Summary of the Invention

[0005] The purpose of this invention is to provide a green and environmentally friendly cable with high flame retardant performance. The core wires are arranged in an orderly manner by combining rubber sheaths, and multiple layers of fiber with extremely high flame retardancy are set to prevent heat from being transferred to the interior. Then, a flame-retardant heat-conducting layer with high thermal conductivity is used to diffuse heat to both sides to reduce local overheating. This solves the problems of existing flame-retardant cables having poor blocking effect, which easily leads to excessive internal temperature and damage to the core wires, and the flame retardant process easily leads to excessive local heat.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention relates to a green and environmentally friendly cable with high flame retardant performance, comprising a core wire, a rubber sheath assembly, a shielding structure, a flame-retardant and heat-resistant layer, a flame-retardant and heat-conducting layer, and a flame-retardant outer sheath.

[0008] The rubber sleeve assembly includes a sleeve section and a connecting strip. The sleeve section is a cylindrical strip with multiple cylindrical grooves evenly distributed on its circumference. A notch is provided on the outer sidewall of each cylindrical groove to hold the core wire in the corresponding cylindrical groove. A connecting strip is secured at the notch.

[0009] The shielding structure includes a shielding braided copper layer and a fastening adhesive layer. The shielding braided copper layer is woven outside the rubber sleeve and the connecting strip is wrapped inside the shielding braided copper layer. Adhesive is applied to the outside of the shielding braided copper layer and extends outward to form a fastening adhesive layer.

[0010] The flame-retardant and heat-resistant layer includes multiple layers of woven flame-retardant fiber, which are woven layer by layer on the outside of the fastening adhesive layer.

[0011] The flame-retardant and heat-conducting layer is made by weaving metal strips on the outside of the flame-retardant and heat-conducting layer, and then wrapping a flame-retardant outer skin on the outside of the flame-retardant and heat-conducting layer using extrusion equipment.

[0012] The present invention is further configured such that the rubber sleeve and the connecting rubber strip are made of the same raw material, and the raw material is as follows by weight:

[0013] The composition includes 15-20 parts epoxy resin, 5-10 parts organosilicon, 15-20 parts acrylic acid, 20-25 parts flake copper powder, 5-8 parts graphite, 1-2 parts coupling agent, 1-2 parts dispersant, 0.5-1.5 parts defoamer, and 0.5-1.0 parts toughening agent.

[0014] The rubber sleeve and connecting strip need to be injection molded first. Then, insulating glue is applied to the cylindrical groove of the rubber sleeve to stick the core wire into the cylindrical groove. After applying glue to the notch of the rubber strip, the connecting strip is inserted into the notch.

[0015] The present invention is further configured such that the length of the connecting rubber strip is three times the length of the rubber sleeve section, and the adjacent connecting rubber strips are staggered and installed in the rubber strip notch.

[0016] The present invention is further configured such that the shielding braided copper layer is made of two braids. After the first layer is braided, glue is applied and penetrates from the first braided layer to the inside to adhere to the rubber sleeve joint. Then the second layer is braided, and glue is applied and penetrates from the second braided layer to adhere to the first braided layer. The thickness of the second application should cover the second braid and extend outward by 0.5-1.0 mm to form a tight adhesive layer.

[0017] The present invention is further configured such that the multi-layered woven flame-retardant fiber layer has at least three layers, the thickness of each flame-retardant fiber layer gradually increases from the inside to the outside, the total thickness of the flame-retardant fiber layer does not exceed 2.5 mm, and flame-retardant adhesive is applied after each layer of the flame-retardant fiber layer is woven.

[0018] The flame-retardant adhesive raw materials are as follows by weight: 100-120 parts EPDM, 60-80 parts aluminum hydroxide, 30-50 parts magnesium hydroxide, 2-5 parts silane coupling agent, 5-10 parts paraffin oil, 10-15 parts light calcium carbonate, 2-3 parts stearic acid, and 2-5 parts plasticizer.

[0019] The present invention is further configured such that the flame-retardant fiber layer comprises, from the inside out, a ceramic fiber layer, a basalt fiber layer and a glass fiber layer, wherein the ceramic fiber layer has a weaving thickness of 0.3-0.5 mm, the basalt fiber layer has a weaving thickness of 0.5-0.6 mm, and the glass fiber layer has a weaving thickness of 0.8-1.0 mm.

[0020] The present invention is further configured such that the flame-retardant and heat-conducting layer is made of double-layer stainless steel alloy woven fabric, wherein the stainless steel alloy raw materials are as follows by weight percentage: 70-75% iron, 15-16% chromium, 10-13% nickel and 0.5-1.5% copper powder;

[0021] Iron, chromium and nickel are mixed and melted to form 0.3-0.5mm fine wires. Copper powder is sprayed on the surface of the fine wires and then woven into the outside of the flame-retardant fiber layer. The thickness of the double-layer stainless steel alloy weave is less than 1mm.

[0022] After the double-layer stainless steel alloy weaving is completed, apply glue to fill the gaps.

[0023] The present invention is further configured such that the flame-retardant outer sheath material is in the following proportions by weight: 120-150 parts EPDM, 50-60 parts aluminum hydroxide, 20-30 parts boron nitride, 10-15 parts aramid fiber, 3-5 parts silane coupling agent, 5-10 parts paraffin oil, 15-20 parts light calcium carbonate, 2-3 parts stearic acid, and 2-5 parts plasticizer;

[0024] The flame-retardant outer sheath, with a thickness of 1.0-1.2 mm, is extruded and wrapped around the flame-retardant and heat-conducting layer.

[0025] The present invention is further configured such that the core wire includes multiple copper wire cores and insulating rubber, the copper wire cores are wrapped with an outer sheath, and a layer of copper powder is sprayed on the outer sheath. Then, the multiple copper wire cores are wound together and wrapped with insulating rubber.

[0026] The present invention is further configured such that the length of the rubber sleeve section is 15-25cm, each rubber sleeve section is laser-engraved with a number, and a marking pigment is applied to the groove at the position of the number.

[0027] The present invention has the following beneficial effects:

[0028] 1. This invention installs multiple parallel core wires inside a rubber sleeve. Since the rubber sleeve is segmented, it is easy to form by injection molding. Moreover, the rubber sleeve is a shielding material (containing flake copper powder), which can shield signal interference between core wires, ensuring orderly arrangement and protection of the core wires. The connecting strips are installed in an alternating manner in the notches of the rubber strips, so that the rubber sleeves are connected by the connecting strips. The joints of the rubber sleeves are not prone to cracking. The staggered distribution of the connecting strips ensures that each joint of the rubber sleeves is connected by a connecting strip.

[0029] 2. This invention is woven from at least three layers of materials: a ceramic fiber layer, a basalt fiber layer, and a glass fiber layer. The ceramic fiber layer is relatively thin but has excellent flame retardancy and good flexibility due to its thinness. The basalt fiber layer maintains good flame retardancy at 600℃. A slightly thicker weave also provides good flexibility. The outermost layer is a soft, flame-retardant glass fiber layer, mainly used to block short-lived flames or long-term low-temperature flames. The multi-layer design can cope with different levels of flame retardancy while maintaining flexibility. A heat-conducting flame-retardant heat-conducting layer (metal braided layer) is designed to prevent flames from spreading inward and to transfer heat to both sides for rapid heat dissipation, reducing the temperature of the cable at the flame location and greatly improving the flame retardant effect.

[0030] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of a green and environmentally friendly cable with high flame retardant properties.

[0033] Figure 2 This is a schematic diagram of the exploded structure of a green and environmentally friendly cable with high flame retardant properties.

[0034] Figure 3 This is a schematic diagram of the cross-sectional structure of a green and environmentally friendly cable with high flame retardant properties.

[0035] Figure 4 This is a schematic diagram of the rubber sleeve joint.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Core wire; 11. Insulating rubber sheet; 12. Copper core; 2. Rubber sleeve joint; 21. Cylindrical groove; 22. Rubber strip notch; 3. Connecting rubber strip; 004. Flame-retardant sheath structure; 41. Shielding braided copper layer; 42. Fastening rubber layer; 43. Ceramic fiber layer; 44. Basalt fiber layer; 45. Glass fiber layer; 46. Flame-retardant thermally conductive layer; 47. Flame-retardant outer sheath. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-4 The present invention is a green and environmentally friendly cable with high flame retardant performance, comprising a core wire 1, a rubber sheath assembly, a shielding structure, a flame retardant and heat-resistant layer, a flame retardant and heat-conducting layer, and a flame retardant outer sheath.

[0040] The rubber sleeve assembly includes a rubber sleeve section 2 and a connecting rubber strip 3. The rubber sleeve section 2 is a cylindrical rubber strip and a plurality of cylindrical grooves 21 are evenly distributed on the circumference of the cylindrical rubber strip. A rubber strip notch 22 is opened on the outer side wall of each cylindrical groove 21. The core wire 1 is inserted into the corresponding cylindrical groove 21, and the connecting rubber strip 3 is inserted at the position of the rubber strip notch 22.

[0041] The reason for assembling the rubber sleeve section 2 in sections is that it is difficult to injection mold and assemble an excessively long rubber sleeve section 2. Therefore, the rubber sleeve section 2 is configured in sections. Before the core wire 1 is inserted into the corresponding cylindrical groove 21, the adjacent rubber sleeve sections 2 are glued together. Then the core wire 1 is inserted into the cylindrical groove 21, and the notch 22 of the connecting rubber strip is sealed to achieve the installation of the core wire 1.

[0042] The shielding structure includes a shielding braided copper layer 41 and a fastening adhesive layer 42. The shielding braided copper layer 41 is woven outside the rubber sleeve 2 and the connecting adhesive strip 3 is wrapped inside the shielding braided copper layer 41. Adhesive is applied to the outside of the shielding braided copper layer 41 and extends outward to form the fastening adhesive layer 42.

[0043] The shielding braided copper layer 41 is a copper strip (thickness 0.2-0.3mm, width 3-5mm, long strip braided), which is braided and wrapped around the outside of the rubber sleeve section 2 to achieve the shielding effect. Then, glue is used to fill the gaps to expel air and also to stick the shielding braided copper layer 41 to the outside of the rubber sleeve section 2 without slipping.

[0044] The flame-retardant and heat-resistant layer includes multiple layers of woven flame-retardant fiber, which are woven layer by layer on the outside of the fastening adhesive layer 42.

[0045] The flame-retardant and heat-conducting layer 46 is made of metal strips woven on the outside of the flame-retardant and heat-conducting layer, and then a flame-retardant outer skin 47 is wrapped around the flame-retardant and heat-conducting layer 46 using an extrusion device.

[0046] The flame-retardant and heat-insulating layer is mainly made of fiber flame-retardant material, which has good flame retardancy but poor heat dissipation, which will cause the internal temperature to rise over time. Moreover, fibers with high flame retardancy generally have poor flexibility. By setting multiple layers of flame-retardant fibers of different levels to block flames of different intensities, better flexibility can be maintained.

[0047] The flame-retardant outer sheath 47 primarily retards short-lived flames and mainly serves a sealing and waterproofing function.

[0048] The rubber sleeve 2 and the connecting rubber strip 3 are made of the same raw material, and the raw material is as follows by weight:

[0049] The composition includes 15-20 parts epoxy resin, 5-10 parts organosilicon, 15-20 parts acrylic acid, 20-25 parts flake copper powder, 5-8 parts graphite, 1-2 parts coupling agent, 1-2 parts dispersant, 0.5-1.5 parts defoamer, and 0.5-1.0 parts toughening agent.

[0050] The rubber sleeve section 2 and the connecting rubber strip 3 need to be injection molded first. Then, insulating glue is applied to the cylindrical groove 21 of the rubber sleeve section to stick the core wire 1 into the cylindrical groove 21. After applying glue to the notch 22 of the rubber strip, the connecting rubber strip 3 is inserted into the notch 22 of the rubber strip.

[0051] The rubber sleeve 2 and the connecting strip 3 contain flake copper powder, which provides shielding between different core wires. Other materials ensure that the resulting strip is flexible and easy to bend.

[0052] The length of the connecting strip 3 is three times the length of the rubber sleeve section 2, and adjacent connecting strips 3 are staggered and installed in the strip notch 22.

[0053] like Figure 1 and 2 The length of the connecting strip 3 is three times the length of the rubber sleeve section 2, which ensures that one connecting strip 3 is attached to at least three rubber sleeve sections 2, so that the entire rubber sleeve section 2 can be connected into one piece by all the connecting strips 3 after installation.

[0054] The shielding braided copper layer 41 is made of two braids. After the first layer is braided, glue is applied and it penetrates from the first braided layer to the inside and adheres to the rubber sleeve. Then the second layer is braided, and glue is applied and it penetrates from the second braided layer to the first braided layer. The thickness of the second application should cover the second braid and extend outward by 0.5-1.0 mm to form a fastening adhesive layer 42.

[0055] The shielding braided copper layer 41 is made of two layers of braid, which can fill the gaps between each other to achieve a high degree of overlap and better shielding effect. Combined with the glue penetrating the gaps and bonding, the shielding braided copper layer 41 is firmly attached to the rubber sleeve section 2.

[0056] The flame-retardant fiber layer is provided in a multi-layered braided manner with at least three layers. The thickness of each flame-retardant fiber layer gradually increases from the inside to the outside. The total thickness of the flame-retardant fiber layer does not exceed 2.5 mm. Flame-retardant adhesive is applied after each layer of flame-retardant fiber layer is braided.

[0057] The flame-retardant adhesive raw materials are as follows by weight: 100-120 parts EPDM (ethylene propylene diene monomer rubber), 60-80 parts aluminum hydroxide, 30-50 parts magnesium hydroxide, 2-5 parts silane coupling agent, 5-10 parts paraffin oil, 10-15 parts light calcium carbonate, 2-3 parts stearic acid, and 2-5 parts plasticizer. Water content not specified.

[0058] The flame-retardant fiber layer is multi-layered and flexible, easy to bend, and each layer is not too thick, making it easy to weave. The flame-retardant adhesive (a milky solution that melts upon heating and then air-dries and cures after spraying) mainly fills the gaps between the multiple layers of flame-retardant fiber and bonds them together.

[0059] The flame-retardant fiber layer comprises, from the inside out, a ceramic fiber layer 43, a basalt fiber layer 44, and a glass fiber layer 45. The ceramic fiber layer 43 has a weaving thickness of 0.3-0.5 mm, the basalt fiber layer 44 has a weaving thickness of 0.5-0.6 mm, and the glass fiber layer 45 has a weaving thickness of 0.8-1.0 mm.

[0060] The ceramic fiber layer 43 is resistant to high temperatures of 1000-1260℃, has excellent thermal insulation, and is completely non-combustible. It is used for fireproof wrapping and filling insulation of cables.

[0061] Basalt fiber layer 44, resistant to high temperature of 400-600℃, with higher strength and better toughness than glass fiber, is the preferred choice for high flame retardant and fire resistant cables.

[0062] The fiberglass layer is 45, absolutely non-flammable, resistant to high temperatures of 300-450℃, insulating, flame-retardant, and inexpensive.

[0063] Therefore, the flame must be above 1000°C to burn the flame-retardant fiber layer, which can cope with most fires. Moreover, when the flame burns the flame-retardant outer skin 47 during a fire, the flame-retardant heat-conducting layer 46 will dissipate some of the heat to both sides to reduce the heat transfer to the interior.

[0064] The flame-retardant and heat-conducting layer 46 is made of double-layer stainless steel alloy woven fabric, and the stainless steel alloy raw materials are as follows by weight percentage: 70-75% iron, 15-16% chromium, 10-13% nickel and 0.5-1.5% copper powder.

[0065] Iron, chromium and nickel are mixed and melted to form 0.3-0.5mm fine wires. Copper powder is sprayed on the surface of the fine wires and then woven into the outside of the flame-retardant fiber layer. The thickness of the double-layer stainless steel alloy weave is less than 1mm.

[0066] After the double-layer stainless steel alloy weaving is completed, apply glue to fill the gaps.

[0067] The flame-retardant and heat-conducting layer 46 is made of woven metal mesh (sheet-shaped metal strips). Adding chromium and nickel can increase flexibility, but the thermal conductivity is not reduced much. The two layers of metal mesh are 0.6-0.8mm thick, which can achieve good thermal conductivity and is not easy to burn. It protects the inner flame-retardant fiber layer from direct contact with the flame.

[0068] The flame-retardant outer sheath 47 raw materials are as follows by weight: EPDM 120-150 parts, aluminum hydroxide 50-60 parts, boron nitride 20-30 parts, aramid fiber 10-15 parts, silane coupling agent 3-5 parts, paraffin oil 5-10 parts, light calcium carbonate 15-20 parts, stearic acid 2-3 parts, and plasticizer 2-5 parts;

[0069] The flame-retardant outer sheath 47 is extruded and wrapped around the flame-retardant and heat-conducting layer with a thickness of 1.0-1.2 mm.

[0070] The primary function of the flame-retardant outer sheath 47 is waterproofing and dustproofing. It also possesses some flame-retardant properties, exhibiting good flame retardancy at 150℃. It can also withstand short-term high temperatures, such as 300℃, where it can retard flame for about 10 seconds (short-term high temperatures are not a problem). However, if the outer layer is damaged, it can be repaired later by applying or spraying a rubber emulsion and waiting for it to solidify.

[0071] The core wire 1 includes multiple copper wire cores 12 and insulating rubber 11. The copper wire cores 12 are wrapped with an outer sheath, and then a layer of copper powder is sprayed on the outer sheath. The multiple copper wire cores 12 are then wound together and wrapped with insulating rubber 11.

[0072] The copper wire core 12 is wrapped with an outer sheath, which itself provides insulation from the outside. After being coated with a layer of copper powder, it can ensure that multiple copper wire cores 12 do not interfere with each other, or reduce interference. The insulating rubber sheet 11 is used to wrap multiple copper wire cores 12 together and can be locked in the cylindrical groove 21.

[0073] The length of each rubber sleeve section 2 is 15-25cm. Each section of the rubber sleeve section 2 is laser-engraved with a number, and a marking pigment is applied to the groove at the position of the number.

[0074] For easy maintenance later, the section can be cut to section 2 of the rubber sleeve, and the node position of section 2 can be checked to know the distance between the maintenance position and the initial end. Moreover, the segmented rubber sleeve section 2 is easy to disassemble; it can be torn apart from the splicing position.

[0075] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A green and environmentally friendly cable with high flame retardant properties, characterized in that: Includes core wire (1), rubber sheath assembly, shielding structure, flame-retardant and heat-resistant layer, flame-retardant and heat-conducting layer and flame-retardant outer sheath; The rubber sleeve assembly includes a rubber sleeve section (2) and a connecting rubber strip (3). The rubber sleeve section (2) is a cylindrical rubber strip and a plurality of cylindrical grooves (21) are evenly distributed on the circumference of the cylindrical rubber strip. A rubber strip notch (22) is opened on the outer side wall of each cylindrical groove (21) to hold the core wire (1) in the corresponding cylindrical groove (21). The connecting rubber strip (3) is held at the position of the rubber strip notch (22). The shielding structure includes a shielding braided copper layer (41) and a fastening adhesive layer (42). The shielding braided copper layer (41) is woven outside the rubber sleeve (2) and the connecting adhesive strip (3) is wrapped inside the shielding braided copper layer (41). Adhesive is applied to the outside of the shielding braided copper layer (41) and extended outward to form the fastening adhesive layer (42). The flame-retardant and heat-resistant layer includes a multi-layer woven flame-retardant fiber layer, which is woven layer by layer outside the fastening adhesive layer (42); The flame-retardant heat-conducting layer (46) is made by weaving metal strips on the outside of the flame-retardant heat-conducting layer, and then using an extrusion device to wrap a flame-retardant outer skin (47) around the flame-retardant heat-conducting layer (46).

2. The green and environmentally friendly cable with high flame retardant performance according to claim 1, characterized in that, The rubber sleeve (2) and the connecting rubber strip (3) are made of the same raw material, and the raw materials are as follows by weight: The composition includes 15-20 parts epoxy resin, 5-10 parts organosilicon, 15-20 parts acrylic acid, 20-25 parts flake copper powder, 5-8 parts graphite, 1-2 parts coupling agent, 1-2 parts dispersant, 0.5-1.5 parts defoamer, and 0.5-1.0 parts toughening agent. The rubber sleeve section (2) and the connecting strip (3) need to be injection molded first. Then, insulating glue is applied to the cylindrical groove (21) of the rubber sleeve section to stick the core wire (1) in the cylindrical groove (21). After applying glue to the notch (22) of the rubber strip, the connecting strip (3) is inserted into the notch (22).

3. The green and environmentally friendly cable with high flame retardant performance according to claim 2, characterized in that, The length of the connecting strip (3) is three times the length of the sleeve section (2), and adjacent connecting strips (3) are staggered in the strip notch (22).

4. The green and environmentally friendly cable with high flame retardant performance according to claim 1, characterized in that, The shielding braided copper layer (41) is made of two braids. After the first layer is braided, glue is applied and it penetrates from the first braided layer to the inside and adheres to the rubber sleeve. Then the second layer is braided and glue is applied and it penetrates from the second braided layer to the first braided layer. The thickness of the second application should cover the second braid and extend outward by 0.5-1.0 mm to form a tight adhesive layer (42).

5. The green and environmentally friendly cable with high flame retardant performance according to claim 1, characterized in that, The flame-retardant fiber layer is provided in a multi-layered braided manner with at least three layers. The thickness of each flame-retardant fiber layer gradually increases from the inside to the outside. The total thickness of the flame-retardant fiber layer does not exceed 2.5 mm. Flame-retardant adhesive is applied after each layer of flame-retardant fiber layer is braided. The flame-retardant adhesive raw materials are as follows by weight: 100-120 parts EPDM, 60-80 parts aluminum hydroxide, 30-50 parts magnesium hydroxide, 2-5 parts silane coupling agent, 5-10 parts paraffin oil, 10-15 parts light calcium carbonate, 2-3 parts stearic acid, and 2-5 parts plasticizer.

6. The green and environmentally friendly cable with high flame retardant performance according to claim 5, characterized in that, The flame-retardant fiber layer comprises, from the inside out, a ceramic fiber layer (43), a basalt fiber layer (44), and a glass fiber layer (45). The ceramic fiber layer (43) has a weaving thickness of 0.3-0.5 mm, the basalt fiber layer (44) has a weaving thickness of 0.5-0.6 mm, and the glass fiber layer (45) has a weaving thickness of 0.8-1.0 mm.

7. The green and environmentally friendly cable with high flame retardant performance according to claim 1, characterized in that, The flame-retardant and heat-conducting layer (46) is made of double-layer stainless steel alloy woven fabric, and the stainless steel alloy raw materials are as follows by weight percentage: 70-75% iron, 15-16% chromium, 10-13% nickel and 0.5-1.5% copper powder; Iron, chromium and nickel are mixed and melted to form 0.3-0.5mm fine wires. Copper powder is sprayed on the surface of the fine wires and then woven into the outside of the flame-retardant fiber layer. The thickness of the double-layer stainless steel alloy weave is less than 1mm. After the double-layer stainless steel alloy weaving is completed, apply glue to fill the gaps.

8. The green and environmentally friendly cable with high flame retardant performance according to claim 1, characterized in that, The flame-retardant outer sheath (47) is made of the following raw materials in parts by weight: 120-150 parts EPDM, 50-60 parts aluminum hydroxide, 20-30 parts boron nitride, 10-15 parts aramid fiber, 3-5 parts silane coupling agent, 5-10 parts paraffin oil, 15-20 parts light calcium carbonate, 2-3 parts stearic acid, and 2-5 parts plasticizer; The flame-retardant outer sheath (47) is extruded and wrapped around the flame-retardant and heat-conducting layer with a thickness of 1.0-1.2 mm.

9. A green and environmentally friendly cable with high flame retardant performance according to claim 1, characterized in that, The core wire (1) includes multiple copper cores (12) and insulating rubber (11). The copper cores (12) are wrapped with an outer sheath, and then a layer of copper powder is sprayed on the outer sheath. The multiple copper cores (12) are then wrapped with insulating rubber (11).

10. A green and environmentally friendly cable with high flame retardant performance according to claim 1, characterized in that, The length of the rubber sleeve section (2) is 15-25cm. Each section of the rubber sleeve section (2) is laser-engraved with a number and a marking pigment is applied to the groove at the position of the number.

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