A star-twisted high-speed data cable for industrial Ethernet application

Abstract

A star twisted high speed data cable for industrial Ethernet application is adopted. The cable adopts tin-plated copper strand stranded conductor, single-wire insulation adopts high-density polyethylene insulation, Four single wires are stranded through a pitch of less than 60mm by low-rate stranding design to form a four-star stranded structure, and a filling material is added. A layer of extruded inner sheath is added outside the cable core. The inner sheath is a lubricating material added outside the cable core, and an aluminum foil and a tin-plated copper braided double shield are added outside the inner sheath. At last, a thermoplastic polyurethane coat is extrude on that outermost surface. The filling material comprises PP and PE filling materials, and the inner sheath is a lubricating material added outside the cable core, which is talcum powder; It has the characteristics of high transmission frequency up to 100MHz, good internal stability, and can be used in different harsh environments, such as narrow wiring space, uninterrupted movement of cable trailing chain, strong external electromagnetic interference, various mineral oils, sunshine, extreme cold and heat, and so on.

Description

technical field [0001] The invention relates to a towline-type 100MHz industrial Ethernet application star twisted high-speed data cable, which is mainly used for signal transmission between equipment and data systems in communication control systems and industrial automation systems, and belongs to the technical field of high-speed data cables. Background technique [0002] Existing similar data cables are generally divided into the following two types: [0003] One is twisted industrial Ethernet cable, see figure 1 As shown, the copper conductor 1 is covered with a layer of high-density polyethylene insulation 2, the single wire is twisted at a certain pitch, and the 2 pairs of twisted wires are twisted again, and at the same time, a certain filling 3 is added to the 2 sides to make the cable core round , and then add aluminum foil 4 and braid 5 shielding outside the cable core, and finally extrude a layer of sheath 6 (sheath) on the outermost side. [0004] The second i...

AI Technical Summary

Problems solved by technology

[0005] However, the structures of the above two types of cables are not very stable, and can only be used in occasional mobile environments, and some can only be used in fixed wiring systems, and in occasions with harsh conditions, such as external electromagnetic interference, narrow wiring space, All kinds of mineral oil, sun exposure, extreme cold and extreme heat, etc., and then after the drag chain moves continuously, the transmission performance of the cable within 100MHz frequency cannot be guaranteed after the cable has been moved 1 million times

Images