Aluminum strips for cable shielding

Aluminum strips for cable adopt 8011, 1060 aluminium strip temper soft with thickness of 0.1-0.2mm, the width is 100-300mm. The electromagnetic noise environment in industrial application sites is often very complicated. The radiation or conduction of electromagnetic noise may seriously interfere with the normal operation of electromechanical equipment. In this process, an important carrier of electromagnetic noise propagation is the various cables used in the production line equipment. Some of them are noise sources, and some are disturbed objects. As a noise source, the cable will transmit noise to the surrounding lines and equipment like a radio transmitting antenna; as the object of interference, the cable will absorb noise interference from other radiation sources like the receiving antenna. To combat electromagnetic noise interference on electrical lines, a very important way is to use shielded cables.

A shielded cable is a cable with one or more (insulated) wires wrapped by a common conductive layer. This common conductive layer is the shielding layer of the cable, which is generally composed of a spirally wound cable aluminum strip or a conductive polymer layer. Signal or power wires can be wrapped inside the shielding layer to prevent electromagnetic noise interference in two ways. On the one hand, aluminum strips for cable can simply reflect the noise energy as an isolation layer; on the other hand, cable aluminum strip can absorb noise and conduct it to the ground, which becomes the return path of the noise signal. And in any case, electromagnetic noise will not be directly transmitted to the line conductor. Although sometimes the noise energy may still pass through the shielding layer, but usually it has been attenuated to a great extent, it is difficult to cause interference. Therefore, regardless of whether the cable itself is an interference source or an object to be interfered with, it will be very effective to use shielding for it.