Anti-interference high-flame-retardant environment-friendly transponder data transmission cable

Abstract

The application discloses an anti-interference high-flame-retardant environment-friendly transponder data transmission cable, which comprises a star type four-wire group twisted by four composite insulated single wires, wherein the composite insulated single wire is composed of a twisted soft conductor and a PE+high-temperature-resistant fluoroplastic double-layer composite insulation layer wrapped outside the twisted soft conductor; the star type four-wire group is sequentially provided with a high-flame-retardant environment-friendly semiconductive nylon wrapping tape, a copper braided inner shielding layer, a low-smoke halogen-free flame-retardant polyolefin inner lining layer, an aluminum plastic tape outer shielding layer and a low-smoke halogen-free flame-retardant polyolefin outer sheath; and the high-flame-retardant environment-friendly semiconductive nylon wrapping tape is wrapped outside the star type four-wire group, which not only improves the flame-retardant property of the cable and can play an electromagnetic shielding role, but also adopts double composite high electromagnetic shielding layers to form three-level shielding, so that the anti-interference capacity is high, the smoke and toxic gas generated by combustion is reduced to the minimum, and the cable is suitable for being used as a transponder data transmission cable introduced into a comprehensive station building and an independent signal building.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and in particular to an anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable. Background Technology

[0002] Vigorously developing the railway transportation industry aligns with the environmental protection concept of "green transportation," characterized by low energy consumption and minimal pollution. With the rapid development of the railway industry, railway transportation speeds are increasing, train dispatching is becoming more centralized, and data transmission methods are diversifying. To ensure the safety and reliability of railway transportation, there is an urgent need for environmentally friendly and safe cables with strong anti-interference capabilities, suitable for use within stations, and capable of flame retardant operation without releasing dense smoke.

[0003] Furthermore, transponder data cables are prone to bending and compression during actual installation, which can cause deformation and misalignment of the conductor cores. This alters the relative positions and pitches of the insulated individual wires in the cable pair, thereby affecting the cable's electrical performance and reducing data transmission reliability. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable.

[0005] An anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable includes a star-shaped four-wire group composed of four composite insulated single wires twisted together. Each composite insulated single wire consists of a stranded soft conductor and a double-layer composite insulation layer of PE + high-temperature resistant fluoroplastic covering the stranded soft conductor. The star-shaped four-wire group is sequentially provided with a high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape, a copper braided inner shielding layer, a low-smoke halogen-free flame-retardant polyolefin inner lining layer, an aluminum-plastic tape outer shielding layer, and a low-smoke halogen-free flame-retardant polyolefin outer sheath.

[0006] Preferably, a liquid silicone rubber coating is also provided outside the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer of the composite insulated single wire.

[0007] Preferably, a semi-conductive silicone rubber layer is provided outside the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer of the composite insulated single wire. The semi-conductive silicone rubber layer and the semi-conductive nylon wrapping tape together form a composite semi-conductive shielding structure.

[0008] Preferably, the stranded soft conductor is a fifth type of stranded soft conductor, which is made by stranding multiple copper wires together.

[0009] Preferably, the average thickness of the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer is not less than 0.6 mm.

[0010] Preferably, the star-shaped four-wire group is formed by high-speed stranding with a pre-twist rate of 35% to 45%, and the four composite insulated single wires constituting the star-shaped four-wire group are composite insulated single wires of four different colors: red, green, white, and blue.

[0011] Preferably, the high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape is made by overlapping and wrapping a layer of high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape with a width of 25mm, a thickness of 0.2mm, and an oxygen index of not less than 70%, with an overlap rate of not less than 20%.

[0012] Preferably, the copper braided inner shielding layer is made of multiple tin-plated copper wires braided together, with a braiding density of ≥90%; the aluminum-plastic tape outer shielding layer is made of aluminum-plastic tape with an aluminum layer thickness of not less than 0.05mm, which are overlapped and wrapped together. The copper braided inner shielding layer and the aluminum-plastic tape outer shielding layer constitute a double composite high electromagnetic shielding layer.

[0013] Preferably, the low-smoke halogen-free flame-retardant polyolefin outer sheath is made of environmentally friendly B1 grade black rodent-proof, ant-proof, UV-resistant low-smoke halogen-free flame-retardant polyolefin tightly extruded, with a nominal thickness of 1.8mm, and the flame-retardant performance of the cable bundle is not lower than the B1 grade standard requirements.

[0014] This invention relates to an anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable. The composite insulated single wire uses a double-layer composite insulation material of PE and high-temperature resistant fluoroplastic. This ensures both the electrical transmission performance and mechanical properties of the transponder data transmission cable, while also improving its resistance to high and low temperatures, acids, and alkalis, and preventing it from becoming a medium for the propagation of electrical fires. The star-shaped four-wire group is wrapped with high flame-retardant and environmentally friendly semi-conductive nylon tape, which not only improves the cable's flame-retardant performance but also provides electromagnetic shielding due to its semi-conductive properties. Furthermore, a copper braided inner shielding layer and aluminum-plastic composite material are used. The double composite high electromagnetic shielding layer, consisting of an outer shielding layer, constitutes a three-level shielding. The highly flame-retardant and environmentally friendly semi-conductive nylon wrapping tape also serves as a flame retardant and wrapping tape, improving performance without increasing cable thickness or cost. A low-smoke halogen-free flame-retardant polyolefin inner liner is provided between the double composite high electromagnetic shielding layers, and a low-smoke halogen-free flame-retardant polyolefin outer sheath is provided outside the double composite high electromagnetic shielding layers, minimizing the amount of smoke and toxic gases generated during combustion and protecting the internal core from flame combustion. It is suitable as a transponder data transmission cable for use in integrated station buildings and independent signal towers.

[0015] In addition, a liquid silicone rubber coating is applied to the outside of the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer of the composite insulated single wire, which increases the wear resistance and anti-adhesion performance of the composite insulated single wire, thereby improving the sliding ability between the composite insulated single wires and making the cable as a whole easier to bend and recover.

[0016] In particular, a semi-conductive silicone rubber layer is also provided, which not only increases the wear resistance and anti-adhesion performance of the composite insulated single wire, but also has a shielding effect. The semi-conductive silicone rubber layer together with the semi-conductive nylon wrapping tape forms a composite semi-conductive shielding structure, which enhances the electromagnetic shielding performance of the composite insulated single wire. Through the double semi-conductive shielding structure and the double high electromagnetic shielding structure, the signal interference of the transmission cable is greatly reduced, and the low noise of the transmission cable is achieved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the present invention.

[0020] In the diagram: 1—Stranded soft conductor, 2—PE + high-temperature resistant fluoroplastic double-layer composite insulation layer, 3—Star-shaped four-wire group, 4—High flame-retardant and environmentally friendly semi-conductive nylon wrapping tape, 5—Copper braided inner shielding layer, 6—Low smoke halogen-free flame-retardant polyolefin inner lining layer, 7—Aluminum-plastic tape outer shielding layer, 8—Low smoke halogen-free flame-retardant polyolefin outer sheath, 31—Liquid silicone rubber coating, 32—Semi-conductive silicone rubber layer. Detailed Implementation

[0021] The following embodiments, in conjunction with the accompanying drawings, further illustrate specific implementations of the anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable of the present invention. The anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable of the present invention is not limited to the descriptions in the following embodiments.

[0022] An anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable includes a star-shaped four-wire group 3 composed of four composite insulated single wires twisted together. Each composite insulated single wire consists of a stranded soft conductor 1 and a PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 covering the stranded soft conductor 1. The star-shaped four-wire group 3 is sequentially provided with a high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape 4, a copper braided inner shielding layer 5, a low-smoke halogen-free flame-retardant polyolefin inner lining layer 6, an aluminum-plastic tape outer shielding layer 7, and a low-smoke halogen-free flame-retardant polyolefin outer sheath 8.

[0023] The transponder data transmission cable of this invention has good anti-interference, high flame retardancy and environmental protection performance, ensuring the anti-interference capability of the transponder data transmission cable and preventing magnetic field interference caused by excessive concentration of electrical appliances; it adopts highly environmentally friendly materials, overcoming the problem that traditional transponder data transmission cables release a large amount of dense smoke when burning, accompanied by the generation of halogen acid (HX) gas and other gases harmful to the human respiratory tract, ensuring improved visibility in fire areas when people are densely populated, reducing the risk of passengers suffocating due to excessive smoke, and buying more favorable time for rescue.

[0024] Preferably, a liquid silicone rubber coating is provided outside the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 of the composite insulated single wire. The liquid silicone rubber coating increases the wear resistance and anti-adhesion performance of the composite insulated single wire, thereby improving the sliding ability between the composite insulated single wires, increasing the flexibility of the cable, making the cable easier to bend and recover, adapting to various bending conditions in actual laying, and extending the service life of the cable.

[0025] like Figure 1 As shown in the preferred embodiment of the present invention, a high flame-retardant and environmentally friendly transponder data transmission cable with anti-interference capability includes a star-shaped four-wire group 3 composed of four composite insulated single wires twisted together. The composite insulated single wire is composed of a stranded soft conductor 1 and a PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 covering the stranded soft conductor 1. The star-shaped four-wire group 3 is provided with a high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape 4, a copper braided inner shielding layer 5, a low-smoke halogen-free flame-retardant polyolefin inner lining layer 6, an aluminum-plastic tape outer shielding layer 7, and a low-smoke halogen-free flame-retardant polyolefin outer sheath 8 in sequence.

[0026] Preferably, the stranded flexible conductor 1 is a fifth type of stranded flexible conductor, which is formed by stranding multiple copper wires together. The fifth type of stranded flexible conductor has a nominal cross-section of 0.75 mm². 2 It is made by bundling 24 0.2mm copper wires together, and the nominal outer diameter of the conductor after bundling is 1.14mm, which conforms to GB / T

[0027] The provisions for conductor type 5 in 3956-2008 "Conductors of Cables".

[0028] A PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 is extruded over the stranded flexible conductor 1. Preferably, the average extruded thickness of the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 is not less than 0.6 mm. The stranded flexible conductor and the double-layer composite insulation layer combine to form a high-performance composite insulated single wire. The tight extrusion of PE + high-temperature resistant fluoroplastic double-layer composite insulation material over the stranded flexible conductor 1 ensures both the electrical transmission performance and mechanical properties of the transponder data transmission cable, while also improving its resistance to high and low temperatures, acids and alkalis, and other environmental conditions. It also prevents the cable from becoming a medium for the propagation of electrical fires. Even if a fire occurs due to special circumstances, the double composite insulation material can maintain signal transmission for a relatively long time, exhibiting higher reliability and creating favorable conditions for subsequent personnel escape and rescue.

[0029] Four composite insulated single wires are twisted together to form a star-shaped four-wire group 3. Preferably, the four composite insulated single wires are red, green, white, and blue, which are four different colors. The star-shaped four-wire group 3 is produced by an advanced high-speed star stranding machine and is formed by high-speed stranding with a pre-twist rate of 35% to 45%. Each composite insulated single wire is actively released under constant tension. Based on the characteristics of the double composite insulation layer structure, a special pre-twist device, a wire separator, and a stable structure that can accurately tie the yarn tension are set to ensure that the four-wire group structure is symmetrical and stable, with accurate pitch, and uniform wire sequence and outer diameter.

[0030] The star-shaped four-wire group 3 is wrapped with a high flame-retardant and environmentally friendly semi-conductive nylon tape 4. The use of this tape not only improves the cable's flame-retardant performance but also provides electromagnetic shielding due to its semi-conductive properties. Preferably, it is formed by overlapping layers of 25mm wide, 0.2mm thick, high flame-retardant and environmentally friendly semi-conductive nylon tape 4 with an oxygen index of not less than 70%, with an overlap rate of not less than 20%. The main technical specifications of this high flame-retardant and environmentally friendly semi-conductive nylon tape are shown in the table below:

[0031]

[0032] A copper braided inner shielding layer 5 is formed by braiding tin-plated copper wires on the outside of the high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape 4.

[0033] The copper braided inner shielding layer (5) is woven from multiple tin-plated copper wires with a braiding density ≥90%. Preferably, it is woven from 7 copper wires of 0.2mm each with a braiding density ≥90%. A low-smoke halogen-free flame-retardant polyolefin sheath material is extruded over the copper braided inner shielding layer 5 to form a low-smoke halogen-free flame-retardant polyolefin inner liner 6. Preferably, the thickness of the low-smoke halogen-free flame-retardant polyolefin inner liner 6 is 1.4mm.

[0034] An aluminum-plastic tape outer shielding layer 7 is formed by overlapping and wrapping an aluminum-plastic tape around a low-smoke, halogen-free, flame-retardant polyolefin inner liner 6. Preferably, the aluminum-plastic tape outer shielding layer 7 is formed by overlapping and wrapping aluminum-plastic tape with an aluminum layer thickness of not less than 0.05 mm. The copper braided inner shielding layer 5 and the aluminum-plastic tape outer shielding layer 7 constitute a double composite high electromagnetic shielding layer. The inner shielding layer is made of tin-plated copper wire with a braiding density of not less than 90%, and the outer shielding layer is made of aluminum-plastic tape coated on one side and overlapped and wrapped. This increases the shielding performance and improves the anti-interference performance of the cable in the signal building. It not only improves the shielding effect of the transponder data transmission cable, enabling the transponder data transmission cable to meet various interference environments in the platform and station building, but also greatly reduces the bending radius required for laying the transponder data transmission cable, facilitating the construction of the transponder data transmission cable. At the same time, it provides convenient and reliable technical support for the indoor transponder data transmission cable to the indoor signal lightning protection distribution cabinet or integrated cabinet to the junction box. In addition, a low-smoke, halogen-free, flame-retardant polyolefin sheath material is used between the two composite high electromagnetic shielding layers to form a shielding whole, ensuring that the internal wire core is not burned by flames in the event of a fire caused by special circumstances.

[0035] Furthermore, a low-smoke halogen-free flame-retardant polyolefin sheath material is tightly extruded over the aluminum-plastic tape outer shielding layer 7 to form a low-smoke halogen-free flame-retardant polyolefin outer sheath 8. Preferably, the low-smoke halogen-free flame-retardant polyolefin outer sheath 8 is made of environmentally friendly B1-grade black rodent-proof, termite-proof, and UV-resistant low-smoke halogen-free flame-retardant polyolefin with a nominal thickness of 1.8mm. This ensures that the amount of smoke and toxic gases generated by the burning outer sheath is minimized in the event of a fire, ensuring improved visibility in the fire area when people are densely populated, reducing the risk of passengers suffocating due to excessive smoke, and buying more time for rescue. At the same time, the cable has rodent-proof, termite-proof, and UV-resistant functions, reducing cable maintenance costs. Moreover, both the low-smoke halogen-free flame-retardant polyolefin inner lining layer 6 and the low-smoke halogen-free flame-retardant polyolefin outer sheath 8 are made of low-smoke halogen-free flame-retardant polyolefin sheath material, making the shielding and sheath of the star four-wire group 3 a whole, effectively protecting the internal star four-wire group 3 from flame combustion.

[0036] The anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable of this invention uses a double-layer composite insulation material of PE + high-temperature resistant fluoroplastic for the single wire. This ensures both the electrical transmission performance and mechanical and physical properties of the transponder data transmission cable, while also improving its resistance to high and low temperatures, acids and alkalis, and preventing it from becoming a medium for the propagation of electrical fires. A high flame-retardant and environmentally friendly semi-conductive nylon tape 4 is wrapped around the star-shaped four-wire group 3. This not only improves the cable's flame-retardant performance but also provides electromagnetic shielding due to its semi-conductive properties. Furthermore, a copper braided inner shielding layer 5 and aluminum-plastic tape are used. The double composite high electromagnetic shielding layer 7, consisting of an outer shielding layer 7, constitutes a three-level shielding. The highly flame-retardant and environmentally friendly semi-conductive nylon wrapping tape 4 also serves as a flame retardant and wrapping tape, improving performance without increasing cable thickness or cost. A low-smoke halogen-free flame-retardant polyolefin inner liner 6 is provided between the double composite high electromagnetic shielding layers, and a low-smoke halogen-free flame-retardant polyolefin outer sheath 8 is provided outside the double composite high electromagnetic shielding layers. This minimizes the amount of smoke and toxic gases generated during combustion and protects the internal core from flame combustion. It is suitable as a transponder data transmission cable for use in integrated station buildings and independent signal towers.

[0037] The second embodiment of the anti-interference, high flame-retardant, and environmentally friendly transponder data transmission cable of the present invention has the same structure and materials as the first embodiment. The main difference is that a liquid silicone rubber coating 31 is provided outside the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 of the composite insulated single wire. The liquid silicone rubber coating 31 increases the wear resistance and anti-adhesion performance of the composite insulated single wire, thereby improving the sliding ability between the composite insulated single wires, increasing the flexibility of the cable, making the cable easier to bend and recover, adapting to various bending situations in actual laying, and extending the service life of the cable. During processing, liquid silicone rubber is sprayed onto the outside of the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 using a hot-drying tunnel, and then cured by heat to form a liquid silicone rubber coating 31, forming a composite insulated single wire. Four composite insulated single wires coated with the liquid silicone rubber coating 31 are then bonded together to form a star-shaped four-wire group 3, which is then wrapped with a high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape 4. A copper braided inner shielding layer 5, a low-smoke halogen-free flame-retardant polyolefin inner lining layer 6, an aluminum-plastic tape outer shielding layer 7, and a low-smoke halogen-free flame-retardant polyolefin outer sheath 8 are sequentially arranged. Preferably, the thickness of the liquid silicone rubber coating 31 is 0.01 mm.

[0038] The third embodiment of the anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable of the present invention has the same structure and materials as the first embodiment. The main difference is that a semi-conductive silicone rubber layer 32 is provided outside the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 of the composite insulated single wire. This not only increases the wear resistance and anti-adhesion performance of the composite insulated single wire to improve the sliding ability between the composite insulated single wires and increase the flexibility of the cable, but also has a shielding effect, strengthening the electromagnetic shielding performance of the composite insulated single wire. The semi-conductive silicone rubber layer 32 together with the semi-conductive nylon wrapping tape 4 constitutes a composite semi-conductive shielding structure. In addition, a double composite high electromagnetic shielding layer composed of a copper braided inner shielding layer 5 and an aluminum-plastic tape outer shielding layer 7 is provided outside the composite semi-conductive shielding structure. Through the double semi-conductive shielding structure and the double high electromagnetic shielding structure, the signal interference of the transmission cable is greatly reduced, and the low noise of the transmission cable is achieved. During processing, the semi-conductive silicone rubber layer 32 is extruded outside the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer 2 to form a composite insulated single wire. Preferably, the thickness of the semi-conductive silicone rubber layer 32 is 0.5mm-1.2mm. The composite insulating single wire bonded with a semi-conductive silicone rubber layer 32 is assembled into a star-shaped four-wire group 3, and then wrapped with a high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape 4. A copper braided inner shielding layer 5, a low-smoke halogen-free flame-retardant polyolefin inner lining layer 6, an aluminum-plastic tape outer shielding layer 7, and a low-smoke halogen-free flame-retardant polyolefin outer sheath 8 are sequentially arranged.

[0039] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A high-flame-retardant and environmentally friendly transponder data transmission cable with anti-interference properties, comprising a star-shaped four-wire group (3) composed of four composite insulated single wires twisted together, characterized in that: The composite insulated single wire is composed of a stranded soft conductor (1), a PE + high-temperature resistant fluoroplastic double-layer composite insulation layer (2) covering the stranded soft conductor (1), and a semi-conductive silicone rubber layer (32) covering the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer (2) of the composite insulated single wire; the star-shaped four-wire group (3) is provided with a high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape (4), a copper braided inner shielding layer (5), a low-smoke halogen-free flame-retardant polyolefin inner lining layer (6), an aluminum-plastic tape outer shielding layer (7), and a low-smoke halogen-free flame-retardant... Flammable polyolefin outer sheath (8); the semi-conductive silicone rubber layer (32) and the semi-conductive nylon wrapping tape (4) together constitute a composite semi-conductive shielding structure; the copper braided inner shielding layer (5) and the aluminum-plastic tape outer shielding layer (7) constitute a double composite high electromagnetic shielding layer; low smoke halogen-free flame-retardant polyolefin sheath material is extruded on the copper braided inner shielding layer (5) to form a low smoke halogen-free flame-retardant polyolefin inner liner (6); the low smoke halogen-free flame-retardant polyolefin sheath material between the double composite high electromagnetic shielding layers makes the double composite high electromagnetic shielding layers form a shielding whole.

2. The anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable according to claim 1, characterized in that: The stranded soft conductor (1) is the fifth type of stranded soft conductor, which is made by stranding multiple copper wires together.

3. The anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable according to claim 1, characterized in that: The average thickness of the PE + high-temperature resistant fluoroplastic double-layer composite insulation layer (2) is not less than 0.6 mm.

4. The anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable according to claim 1, characterized in that: The star-shaped four-wire group (3) is formed by high-speed stranding with a pre-twist rate of 35% to 45%. The four composite insulated single wires constituting the star-shaped four-wire group (3) are composite insulated single wires of four different colors: red, green, white and blue.

5. The anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable according to claim 1, characterized in that: The high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape (4) is made by overlapping and wrapping a layer of high flame-retardant and environmentally friendly semi-conductive nylon wrapping tape (4) with a width of 25mm, a thickness of 0.2mm, and an oxygen index of not less than 70%, with an overlap rate of not less than 20%.

6. The anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable according to claim 1, characterized in that: The copper braided inner shielding layer (5) is made of multiple tin-plated copper wires and the braiding density is ≥90%; the aluminum-plastic tape outer shielding layer (7) is made of aluminum-plastic tape with an aluminum layer thickness of not less than 0.05mm, which is overlapped and wrapped.

7. The anti-interference, high flame-retardant, environmentally friendly transponder data transmission cable according to claim 1, characterized in that: The low-smoke halogen-free flame-retardant polyolefin outer sheath (8) is made of environmentally friendly B1 grade black rodent-proof, ant-proof, UV-resistant low-smoke halogen-free flame-retardant polyolefin tightly extruded, with a nominal thickness of 1.8mm. The flame-retardant performance of the cable bundle is not lower than the B1 grade standard requirements.

Images