Structure and definition of flexible drag chain cable

1. Tensile center

In the center of the drag chain cable according to the total number of cable types and the space in the crossover area of ​​each copper core cable as much as possible, there is a real center line filling (rather than in general, with some filler or scrap Plastic waste copper core cable filling) This method can reasonably and effectively maintain the stranded wire structure and prevent the stranded wire from being scattered to the central area of ​​the cable.

2. Electrical conductor structure

The drag chain cable should choose a flexible electrical conductor. Generally speaking, the thinner the electrical conductor, the better the flexibility of the cable, but the electrical conductor is too thin, which will cause the cable to coil. A series of long-term tests have provided the aperture, length and nodal shielding composition of a single transmission line, which has the ability to work in tension.

3. Copper core cable insulation layer

Insulation materials in drag chain cables must not stick to each other. And the cable jacket also needs to support each single power transmission line at the point. Therefore, its stability can only be confirmed during the use of high-pressure-formed PVC or TPE materials in the millions of meters of cables used in cable drag chains.

4. Stranded wire

Strand construction must be wound around a smooth center of tension with a cross-pitch diameter. However, due to the application of insulating layer materials, the stranded wire structure should be designed according to the motion state, starting from 12 copper core cables, so the method of bundled stranded wires should be selected.

5. Inner sheath

Armor extruded inner sheath replaces cheap wool wool raw material, filler or additional filler. This approach ensures that the stranded wire structure is less prone to straggling.

6. Shielding layer

With the improved weaving angle the shield is firmly braided to the inner jacket, the loose plastic rope will reduce the EMC protection work ability and the shield will quickly become ineffective due to the rupture of the shield. At the same time, the tightly woven shield provides torsion resistance.

7. Outer sheath

Outer sheaths made of different improved raw materials have different functions, such as UV resistance, ultra-low temperature resistance, acid and alkali resistance and their cost optimization. But all of these outer sheaths have one thing in common, high wear resistance and will not stick to anything. The outer sheath must be highly flexible but also have a supporting point function, and should naturally be formed by high pressure.