How to ensure the shielding effect of shielded cable?

Shielded cables are ordinary cables with a primary protective layer of copper mesh on the periphery, and there are many correct or incorrect processes in the manufacture of the shield. One of the important parameters is the braiding angle of the shield. In cables used for drag chains, the load on the shield of the cable's outer diameter must be taken into account. Unreasonable shield braiding angles can further increase the tension load and lead to breakage of the shield. The resulting weakening of the shielding effect can even cause short circuits when sharp cable tails poke through the wool fabric or foiled gold material and come into contact with the core. A useful tip here: If the insulation is stripped off, the shielding can easily be pushed back into the sheath, but such shielding cannot be applied to highly flexible cables in energy supply systems that are in motion. Sheath wear or breakage, any defects in the internal structure are difficult to detect from the outside, but problems with the sheath can be observed directly with the naked eye. The sheath is the layer of protection for the delicate internal structure of the cable. This is why cracked, worn and distorted sheathing is a very serious quality problem. In order to avoid such problems, Igus offers seven different materials for cable sheathing, which can be selected by the user according to the corresponding working environment of his machinery. Armor extrusion molding sheath: Manufacturing process and material are equally important factors in determining product quality. In some of the so-called drag chain cables, the sheath is usually of a tubular type and therefore does not provide the necessary support to the stranded structure during long term bending, thus making the stranded structure susceptible to splitting.

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