Design process and key elements of AISG cable

1, Requirement analysis
The design of AISG cables began during the requirements analysis phase. The main task of this stage is to clarify the requirements for the cable's usage environment, the type and frequency of the transmitted signal, the required electrical performance, and mechanical strength. For example, in mobile communication base stations, AISG cables need to withstand certain mechanical stresses while being able to transmit high-frequency control signals and data signals to ensure remote monitoring and adjustment of antennas. In addition, special requirements such as weather resistance, waterproofing, and fire resistance of cables need to be considered to adapt to the complex and changing outdoor environmental conditions.
2, Material selection
Material selection is an important part of AISG cable design. The conductors of cables are usually made of high-purity copper or copper alloys to ensure good conductivity and mechanical strength. The selection of insulation layer materials should consider their dielectric constant, heat resistance, and chemical corrosion resistance. Common insulation materials include polyethylene (PE), polyvinyl chloride (PVC), and fluoroplastics. The shielding layer material requires good conductivity and shielding effectiveness, commonly used are copper wire braided shielding and aluminum foil shielding. In addition, the selection of sheath materials should also consider their weather resistance, waterproofing, and wear resistance to protect the interior of the cable from external environmental damage.
3, Structural Design
Structural design is the core part of AISG cable design. The structural design of cables needs to comprehensively consider factors such as electrical performance, mechanical strength, and installation convenience.
Conductor structure
The design of the conductor structure must ensure the electrical conductivity and mechanical strength of the cable. Conductors typically adopt a multi stranded structure to increase their flexibility and resistance to bending fatigue. At the same time, the diameter and cross-sectional area of the conductor need to be designed reasonably according to the current and frequency of the transmitted signal to ensure the transmission efficiency and stability of the signal.
Insulation layer design
The design of the insulation layer needs to consider factors such as its dielectric constant, thickness, and uniformity. Materials with lower dielectric constants can reduce signal attenuation and distortion during transmission. The thickness of the insulation layer should be designed reasonably according to the working voltage and insulation strength of the cable to ensure the safety and reliability of the cable. In addition, the uniformity of the insulation layer is also one of the key factors affecting the electrical performance of the cable.
Shielding layer design
The design of the shielding layer needs to ensure the shielding effectiveness and anti-interference ability of the cable. The shielding layer usually adopts copper wire braided shielding or aluminum foil shielding structure to effectively block the interference of external electromagnetic fields. At the same time, the coverage and weaving density of the shielding layer also need to be designed reasonably according to the cable's usage environment and the frequency of the transmitted signal, in order to achieve the best shielding effect.
Sheath design
The design of the sheath needs to consider factors such as weather resistance, waterproofing, and wear resistance. The selection of sheath materials should be reasonably matched according to the usage environment and climate conditions of the cable, in order to protect the interior of the cable from external environmental damage. At the same time, the thickness and strength of the sheath also need to be designed reasonably according to the mechanical stress of the cable to ensure its durability and reliability.
4, Manufacturing process
Manufacturing process is one of the key factors affecting the quality of AISG cables. The selection of manufacturing process should be reasonably matched according to the structural design and material characteristics of the cable to ensure that the electrical performance, mechanical strength, and appearance quality of the cable meet the design requirements.
Conductor drawing and twisting
Conductor drawing and twisting are key processes in the manufacturing process. Conductor drawing requires ensuring that the diameter and cross-sectional area of the conductor meet the design requirements, while also ensuring the surface smoothness and roundness of the conductor. The twisting process requires controlling the twisting pitch and direction to ensure the flexibility and resistance to bending fatigue of the conductor.
Insulation layer extrusion
Extrusion of insulation layer is another key process in the manufacturing process. The extrusion process requires controlling parameters such as extrusion temperature, pressure, and speed to ensure that the thickness and uniformity of the insulation layer meet the design requirements. At the same time, quality inspection of the insulation layer is required to ensure that its dielectric constant, heat resistance, and chemical corrosion resistance meet the requirements.
Shielding layer weaving and welding
The weaving and welding of the shielding layer are also important steps in the manufacturing process. The weaving process requires controlling the weaving density and coverage to ensure the shielding effectiveness of the shielding layer. The welding process needs to ensure that the connection between the shielding layer and the conductor is firm and reliable, avoiding quality problems such as virtual welding or desoldering.
Sheath extrusion and molding
Sheath extrusion and molding are the final processes in the manufacturing process. The extrusion process requires controlling parameters such as extrusion temperature, pressure, and speed to ensure that the thickness and strength of the protective sleeve meet the design requirements. The molding process requires controlling the size and shape of the mold to ensure that the appearance quality and dimensional accuracy of the cable meet the requirements.
5, Test validation
Testing and verification are important steps in the AISG cable design process. Through testing and verification, it is possible to evaluate whether the electrical performance, mechanical strength, and reliability of the cable meet the design requirements. Common testing items include conductor resistance testing, insulation resistance testing, shielding effectiveness testing, withstand voltage testing, bending testing, and tensile testing. During the testing process, it is necessary to strictly follow relevant standards and specifications to ensure the accuracy and reliability of the test results. At the same time, it is necessary to analyze and process the test data to evaluate whether the performance of the cable meets the design requirements, and to make adjustments to the design