Discussion on the material of the fatigue layer in instrument shielding cables

Regarding the shielding materials for instrument shielding cables, copper wire braiding, aluminum-plastic composite tape, and copper tape each have their own characteristics and applicable scenarios: 1. **Copper wire braiding**: The copper wire braided shielding layer offers excellent flexibility and shielding performance, enabling effective reduction of electromagnetic interference; it is suitable for environments that require high-level shielding. It has high electrical conductivity and strong tensile strength, but its relative cost is also high. It is widely used in data transmission and signal control systems. 2. **Aluminum-plastic composite tape winding or stranding**: Aluminum-plastic composite tape shielding is a cost-effective option for shielding materials; it offers good mechanical strength and shielding performance, making it suitable for large-scale applications. Although its corrosion resistance and flexibility are not as good as those of copper, it is sufficient for general industrial applications. 3. **Copper tape winding or stranding**: Copper tape shielding offers a highly effective shielding effect, along with excellent electrical conductivity, making it suitable for use in environments with high demands regarding electromagnetic interference suppression. Shielded cables made of this material are expensive and suitable for critical systems such as power and communications. In summary, the choice of shielding material is primarily determined by the specific requirements of the application environment and the budget available. Copper wire braiding is suitable for environments that require high shielding efficiency and high reliability ； Aluminum-plastic composite tape is suitable for cost-sensitive, low-frequency general applications ； Copper tape shielding is suitable for high shielding requirements in extreme environments. .