How does the shield sleeve effectively shield disturb of electromagnetic signal?

The main function of the signal lines laid inside the electric locomotive is the transmission of various signals of the locomotive, including emergency braking in an emergency. Therefore, the protection of the signal line is particularly critical, which is related to the safety of the train running and the safety of passengers'life and property.

Although the signal line has a layer of shielding protective layer, since the train vibrates during running, the continuous friction between the signal line and the body will cause wire breaking. And there are many signal lines, which appear messy when laying. To solve these problems, our engineers have designed a product dedicated to protecting signal lines, so that the signal lines laid inside the train are well protected in the complex electromagnetic and harsh environments.

Shielding sleeve came into being at the right moment. The outer layer of the wire shielding sleeve is an insulating layer, which has both flame-retardant performance and friction resistance properties; the inner layer is a shielding mesh layer, which has both shielding and electrostatic diversion functions. The outer layer of the protective sleeve is a layer of textile, which has a good flame retardant effect after special treatment. Even if it is ignited by naked flame, it can extinguishes in just a few seconds to prevent the flame from continuing to spread. The flame retardant performance meets the requirements of the German rail transit industry DIN 5510 standard S4 level, the smoke density during combustion is SR2 level,it does not drip during combustion, conforms to the level of ST2.The smoke toxicity is also in a very low range. The abrasion resistance is tested according to ISO12947, shielding sleeves  will not break after it is rubbed more than 50,000 times, which can well protect the internal shielding net layer and signal lines from being scratched.

The inner layer of the cable shielding sleeve is a shielding layer, which is a mesh layer woven with tinned copper wire, which can isolate and absorb complex external electromagnetic signals and prevent them from affecting the signal transmission of the internal signal lines.

The Emi shielding sleeve is easy to use and simple to operate. During construction, first disassemble the grounding wire stitched on the shielding net, install one end of the grounding wire with a terminal of the corresponding specification, and use it for grounding. The shielding net uses metal wires, which can be bent at will. In the actual use, the signal line (single or multiple strands) is completely wrapped in the shielding net to closely fit the signal line. Finally, the shielding net and the signal line are wrapped with the outer fabric, and then the fabric will be assembled with zippers or velcro, which is convenient and quick. The woven layer, shielding net and grounding wire use advanced stitching technology, which not only guarantees the tight stitching, but also is easy to disassemble and install quickly.

Xiamen MJ Industrial Tech Co.,Ltd developing,manufacturing,distribution,marketing various industrial cable shielding sleeves and tubes,welcom to contact us for more deails, or visit our official website:http://www.mj-ist.com,learn more informations.