Which one is better for copper wire shielding and copper tape shielding in cables?

According to different occasions, the cable structure is also different. In the case of shielding interference, shielded cables are widely used, so when choosing shielded cables, should you choose copper wire shielding or copper tape shielding? About copper wire shielding and copper tape shielding, the editor will take you to a simple understanding!

The function of the shielding layer is mainly to protect the current or signal from external electromagnetic interference, and to avoid the interference of the electromagnetic field generated by itself to the surrounding environment and current flow failures during use.

According to the requirements of shielding performance, choose different materials, such as copper wire braided shield, copper tape wound shield, copper wire loosely wound shield, aluminum alloy wire braided shield, copper clad aluminum wire braided shield, aluminum-plastic composite tape wound shield, etc. In order to ensure the continuity of the shield layer and reduce the transmission impedance of the shield layer, it is usually necessary to place one or more annealed copper wires longitudinally in the shield layer as a drain wire for copper tape winding.

The main direction of copper tape shielding current is the same as that of copper tape. The copper wire shield current flows through a short path and generates less heat, while the two-layer copper tape shield increases the shield cross-sectional area, reduces the flow of current, and generates less heat. While it can shield the signal, if it is aimed at a cable with a 500mm current carrying capacity, the magnetic field it generates itself will also increase. When the short-circuit current exceeds a certain value, the effective cross-sectional value of the second layer of 0.12 mm copper tape cannot reach the larger effective cross-sectional value that can be achieved by copper wire winding.

From the above comprehensive consideration, the shielding effect of copper wire is much better than other shielding methods, and the continuity is reliable, so copper wire shielded cable can be selected.

However, according to different construction schemes and laying environments, the utilization rate of copper shielded cables is also very high. Here, users should choose to buy according to their needs.