Types of shielding layer of silicone rubber control cable
Types of shielding layer of silicone rubber control cable? Control cables are widely used in industrial control equipment. The most important thing is that basic industrial control cables need shielding to resist signal disturbance and ensure the accuracy of transmission signals. The shielding structure of the control cable is divided into copper wire braided shield, copper tape wrapped shield, aluminum alloy wire braided shield, copper clad aluminum wire braided shield (considered for economical use, non-standard requirements), aluminum-plastic composite tape wrapped shield, etc. . Among them, in order to ensure the continuity of the shielding layer and reduce the transfer impedance of the shielding layer, it is usually necessary to place one or more annealed copper wires longitudinally in the shielding layer as a drain wire for copper tape wrapping and aluminum-plastic composite tape wrapping. Shielded cable function The main functions of the silicone rubber control cable shielding layer are: 1. The shielding layer can cause the electrons in the electric field to be introduced to the ground to achieve the function of separating the electric field. The shielding layer protects the inner cable core of the shield from the interference of the strong external electric field. This is useful for control cables, communication cables, computer and instrument cables. Significance. 2. A magnetic field is generated when the current flows. The larger the current, the stronger the magnetic field. The shielding layer can shield the generated magnetic field inside the cable to prevent the generated magnetic field from affecting the surrounding equipment or equipment. 3. In terms of leakage protection, the shielding layer plays a key role. If leakage occurs, the shielding layer can lead the leakage current to the grounding wire and also protect the cable conductor. silicone rubber control cable common classification P: Copper wire braided shield P1: Tinned copper wire braided shield P2: Copper tape shield P3: Aluminum-plastic composite tape shield
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