Cable using polyvinyl-chloride insulated sheath

Abstract

The invention discloses a cable using a polyvinyl-chloride insulated sheath. The cable comprises cable cores; first fillers coat the outsides of the cable cores; EPDM insulated leathers coat the outsides of the first fillers; and a reinforcing mechanism is arranged at one side of each EPDM insulated leather. With the reinforcing mechanisms, the high extensibility is provided for the cable and thusthe cable is protected from being broken caused by the external pressure. With a protection mechanism and a supporting mechanism, a protection effect is provided between the cable and the wall and thus the cable is protected from being worn, so that the service life of the cable is prolonged. Because of setting of an aerogel thermal-insulation felt, a crack-resistant fiber layer, a rigid polyurethane foam layer, an asbestos powder layer, a mineral fire-insulation layer, and a tin-plated copper wire braiding unit, the cable can be protected well from many aspects, the shielding effect, the crack-resistant performance, and the anti-freezing performance of the cable are enhanced, and the adaptability of the cable in various harsh environments is enhanced. The cable that is made simply is convenient to popularize.

Description

technical field [0001] The invention relates to the field of cables, in particular to a cable with a polyvinyl chloride insulating sheath. Background technique [0002] Cable is an indispensable basic equipment for energy transmission and information transmission. Today, with the rapid development of social informatization and electrification, wire and cable have become one of the most important basic products in economic construction. The wire and cable industry is also a supporting industry. Products It is necessary to meet the requirements of the main industries of the national economy for the performance of wires and cables. The national economy believes that most industries are related to wires and cables, and its industrial status is very important. [0003] With the rapid development of the communication industry, from the simple telephone and telegraph cables in the past to thousands of pairs of telephone cables, coaxial cables, optical cables, data cables, and even ...

AI Technical Summary

Problems solved by technology

[0004] A Chinese patent discloses a cable suitable for humid environments (authorized notification number CN108320845A). The patented technology includes multiple sets of four sets of cable core wires, multiple sets of four sets of cable core wires are provided with a waterproof tape layer, and the inner gap of the waterproof tape layer There is an optical fiber paste and a mechanical reinforcement core, a copper wire general shielding layer is arranged outside the waterproof tape layer, an isolation layer is arranged outside the copper wire overall shielding layer, a corrugated steel belt layer is arranged outside the isolation layer, and a corrugated steel belt layer is arranged outside There is an outer sheath, and the outer bottom of the outer sheath is wrapped with a semi-arc corrosion-resistant layer; compared with ordinary cables, the present invention has the advantages of simple structure, good shielding effect, strong tensile performance and moisture resistance, but the current cables are in In the process of use, it is often suppressed by external factors, such as falling trees, which cause the cable to break. It does not have good tensile resistance. During the installation process, the cable often touches the wall and other places, which will wear out. The outside of the cable causes damage to the cable, which greatly reduces the service life of the cable, and the cable laying environment is more complicated and will be affected by the harsh external environment. The sun's radiation will cause the skin of the cable to crack, and the cable will also suffer Other signal effects, causing damage to the cable

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