A copper wire shielded steel tape armoured fire resistant cable

Abstract

The utility model discloses a copper wire shielding steel band armoring fireproof cable relates to cable technical field. A copper wire shielding steel band armoring fireproof cable, the outer surface of cable core is covered with tinned copper wire braiding shielding layer, the outer surface of tinned copper wire braiding shielding layer is covered with anti -tear layer, the outer surface of anti -tear layer is covered with waterproof layer, and the outer surface of waterproof layer is wound and covered with braiding fire -resistant layer, the outer surface of braiding fire -resistant layer is covered with second armored layer, the outer surface of second armored layer is covered with first armored layer, through the combination of braiding fire -resistant layer and ceramified silicone rubber layer, can utilize the high temperature resistance characteristic of glass fiber to prevent flame spread, can also help the flexibility of ceramified silicone rubber under normal temperature to guarantee the bending performance of cable, avoids the bending difficult problem of traditional fire -proof material because of high hardness, high brittleness, especially suitable for the occasion that needs frequent bending or twisting, reduces the damage risk in the laying process.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a copper wire shielded steel tape armored fireproof cable. Background Technology

[0002] In today's society, power transmission and distribution systems serve as the fundamental support for modern industry and daily life, and their safety and reliability are of paramount importance. Cables, as a key carrier of power transmission, are widely used in various places, including construction, industry, and energy fields. Among them, copper wire shielded steel tape armored fire-resistant cables are widely used in many situations with high safety and performance requirements due to their characteristics such as shielding electromagnetic interference, enhancing mechanical protection, and providing a certain degree of fire resistance.

[0003] In the use of existing copper wire shielded steel tape armored fire-resistant cables, while improving the fire resistance performance of the cable, it is also necessary to take into account other important performance characteristics of the cable. However, traditional fire-resistant improvement measures often fail to achieve a perfect balance of these performance characteristics. In order to enhance the fire resistance of the cable, the thickness of the outer sheath may be increased or higher performance fire-resistant materials may be used. However, this will lead to an increase in the outer diameter and weight of the cable, which will bring difficulties to the laying and installation of the cable. In addition, an excessively thick outer sheath may also affect the heat dissipation performance of the cable, causing the cable temperature to rise during operation, affecting its electrical performance and service life. Some materials with good fire resistance may have high hardness and brittleness, which will reduce the flexibility and bending performance of the cable, especially in the case of frequent bending or twisting, making the cable susceptible to damage during laying. Therefore, we propose a copper wire shielded steel tape armored fire-resistant cable. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a copper wire shielded steel tape armored fireproof cable. This can solve the problem that an excessively thick outer sheath may affect the heat dissipation performance of the cable, causing the temperature of the cable to rise during operation, affecting its electrical performance and service life. Some materials with good fire resistance may have high hardness and brittleness, which will reduce the flexibility and bending performance of the cable, especially in situations where frequent bending or twisting is required, making the cable easily damaged during laying.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a copper wire shielded steel tape armored fireproof cable, comprising:

[0006] The cable core has a tinned copper wire braided shielding layer on its outer surface, a tear-resistant layer on its outer surface, and a waterproof layer on its outer surface.

[0007] A woven refractory layer is wrapped around the outer surface of the waterproof layer. A second armor layer is wrapped around the outer surface of the woven refractory layer. A first armor layer is wrapped around the outer surface of the second armor layer. A ceramicized silicone rubber layer is wrapped around the outer surface of the first armor layer. An expanded buffer layer is wrapped around the outer surface of the ceramicized silicone rubber layer. A wear-resistant outer layer is wrapped around the outer surface of the expanded buffer layer.

[0008] Preferably, a filling layer is fixedly connected inside the cable core, and multiple insulating layers are fixedly connected inside the filling layer, with conductors fixedly connected inside each of the multiple insulating layers.

[0009] Preferably, the outer surface of the wear-resistant outer layer is provided with multiple raised strips.

[0010] Preferably, the tin-plated copper wire braided shielding layer is made of tin-plated copper wire braid.

[0011] Preferably, the woven refractory layer is made of woven glass fiber.

[0012] Preferably, the tear-resistant layer is woven from aramid fiber material.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This copper wire shielded steel tape armored fireproof cable combines a braided fire-resistant layer with a ceramicized silicone rubber layer. It can utilize the high-temperature resistance of glass fiber to prevent the spread of flames, and the flexibility of ceramicized silicone rubber at room temperature can ensure the bending performance of the cable. This avoids the bending difficulties caused by the high hardness and brittleness of traditional fireproof materials. It is especially suitable for occasions that require frequent bending or twisting, reducing the risk of damage during the laying process. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the wear-resistant outer layer structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the filling layer structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the woven refractory layer structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the tear-resistant layer structure of this utility model.

[0021] Reference numerals: 1. Wear-resistant outer layer; 2. Filler layer; 3. Insulation layer; 4. Conductor; 5. Expanded buffer layer; 6. Ceramicized silicone rubber layer; 7. First armor layer; 8. Second armor layer; 9. Braided fire-resistant layer; 10. Waterproof layer; 11. Tear-resistant layer; 12. Tinned copper wire braided shielding layer; 13. Cable core. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a copper wire shielded steel tape armored fireproof cable, comprising:

[0027] The cable core 13 has a tinned copper wire braided shielding layer 12 covering its outer surface. The tinned copper wire braided shielding layer 12 has a tear-resistant layer 11 covering its outer surface. The tear-resistant layer 11 has a waterproof layer 10 covering its outer surface.

[0028] A woven fire-resistant layer 9 is wrapped around the outer surface of the waterproof layer 10. A second armor layer 8 is wrapped around the outer surface of the woven fire-resistant layer 9. A first armor layer 7 is wrapped around the outer surface of the second armor layer 8. A ceramicized silicone rubber layer 6 is wrapped around the outer surface of the first armor layer 7. An expanded buffer layer 5 is wrapped around the outer surface of the ceramicized silicone rubber layer 6. A wear-resistant outer layer 1 is wrapped around the outer surface of the expanded buffer layer 5.

[0029] The cable core 13 has a filling layer 2 fixedly connected inside, and multiple insulation layers 3 are fixedly connected inside the filling layer 2. Conductors 4 are fixedly connected inside each of the multiple insulation layers 3. Multiple raised strips are provided on the outer surface of the wear-resistant outer layer 1. The tinned copper wire braided shielding layer 12 is made of tinned copper wire. The braided fire-resistant layer 9 is made of glass fiber. The tear-resistant layer 11 is made of aramid fiber.

[0030] Furthermore, when using this device, the cable core 13 serves as the core of the cable, with multiple insulation layers 3 encasing the conductor 4, which is responsible for current transmission. The insulation layers 3 provide insulation, preventing leakage between conductors 4 and between conductors 4 and the outside environment, thus ensuring the safety and stability of power transmission. The filler layer 2 fills the inside of the cable core 13, serving to fix the position of the insulation layers 3 and the conductor, buffer mechanical stress, and ensure the stability of the cable's internal structure.

[0031] The tinned copper wire braided shielding layer 12 is wrapped around the outer surface of the cable core 13. It is made of tinned copper wire and can effectively shield external electromagnetic interference, prevent external electromagnetic fields from interfering with the electrical signals transmitted by the inner conductor 4 of the cable, and reduce the impact of electromagnetic radiation generated by the cable itself on the surrounding environment, ensuring the accuracy and stability of signal transmission. The tear-resistant layer 11 is made of aramid fiber and is wrapped around the outer surface of the tinned copper wire braided shielding layer 12. Aramid fiber has high strength, high modulus and good tear resistance, which can enhance the cable's tensile and tear resistance and protect the internal structure from damage when subjected to external force pulling or tearing.

[0032] The waterproof layer 10 covers the outer surface of the tear-resistant layer 11, preventing moisture from penetrating the cable and avoiding problems such as conductor 4 oxidation and insulation layer 3 performance degradation caused by moisture. This ensures the normal operation of the cable in humid environments. The braided fire-resistant layer 9 is made of woven glass fiber and is wrapped around the outer surface of the waterproof layer 10. Glass fiber has excellent high-temperature resistance and flame-retardant properties. In the event of a fire, it can prevent the spread of flames and protect the internal structure from fire damage for a certain period of time, buying time for fire rescue and personnel evacuation.

[0033] The second armor layer 8 and the first armor layer 7 are sequentially wrapped around the outer surface of the braided fire-resistant layer 9, which enhances the mechanical protection of the cable, improves its resistance to pressure and bending, and prevents mechanical damage to the cable during installation and use. The ceramicized silicone rubber layer 6 is wrapped around the outer surface of the first armor layer 7. It has good flexibility and insulation properties at room temperature. When exposed to high temperature or fire, the ceramicized silicone rubber will quickly ceramicize to form a hard ceramic shell, further enhancing the cable's fire resistance, heat insulation and mechanical protection performance.

[0034] The expanded buffer layer 5 is wrapped around the outer surface of the ceramicized silicone rubber layer 6. It has a certain elasticity and buffering effect, which can absorb and disperse the impact force of the outside to the cable and reduce the damage to the internal structure of the cable caused by the impact of the external force. The wear-resistant outer layer 1 is wrapped around the outer surface of the expanded buffer layer 5. Multiple raised strips on its outer surface increase the friction of the cable surface. At the same time, the wear-resistant outer layer 1 has good wear resistance, which can protect the cable from wear under dragging, friction and other conditions, and extend the service life of the cable.

[0035] By combining the woven fire-resistant layer 9 with the ceramicized silicone rubber layer 6, the high-temperature resistance of glass fiber can be used to prevent the spread of flames, while the flexibility of ceramicized silicone rubber at room temperature can ensure the bending performance of the cable. This avoids the bending difficulties caused by the high hardness and brittleness of traditional fireproof materials, making it especially suitable for occasions that require frequent bending or twisting, and reducing the risk of damage during the laying process.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A copper wire shielded steel tape armored fireproof cable, characterized in that, include: The cable core (13) is covered with a tinned copper wire braided shielding layer (12) on its outer surface. The tinned copper wire braided shielding layer (12) is covered with a tear-resistant layer (11) on its outer surface. The tear-resistant layer (11) is covered with a waterproof layer (10) on its outer surface. A woven fire-resistant layer (9) is wrapped around the outer surface of the waterproof layer (10), a second armor layer (8) is wrapped around the outer surface of the woven fire-resistant layer (9), and a first armor layer (7) is wrapped around the outer surface of the second armor layer (8). Among them, the outer surface of the first armor layer (7) is covered with a ceramicized silicone rubber layer (6), the outer surface of the ceramicized silicone rubber layer (6) is covered with an expanded buffer layer (5), and the outer surface of the expanded buffer layer (5) is covered with a wear-resistant outer layer (1).

2. The copper wire shielded steel tape armored fireproof cable according to claim 1, characterized in that: The cable core (13) has a filling layer (2) fixedly connected inside, and multiple insulation layers (3) are fixedly connected inside the filling layer (2). Each of the multiple insulation layers (3) has a conductor (4) fixedly connected inside.

3. The copper wire shielded steel tape armored fireproof cable according to claim 1, characterized in that: The wear-resistant outer layer (1) has multiple raised strips on its outer surface.

4. The copper wire shielded steel tape armored fireproof cable according to claim 1, characterized in that: The tin-plated copper wire braided shielding layer (12) is made of tin-plated copper wire.

5. The copper wire shielded steel tape armored fireproof cable according to claim 1, characterized in that: The woven refractory layer (9) is made of woven glass fiber.

6. The copper wire shielded steel tape armored fireproof cable according to claim 1, characterized in that: The tear-resistant layer (11) is woven from aramid fiber material.

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