Building a circular economy service in the wire and cable industry to win the market

Actively introduce technology and independently innovate and develop high-performance specialized equipment for wires and cables. At present, there is still a significant technological gap between the key production equipment of wire and cable leading products and advanced foreign equipment, mainly manifested in low productivity, low degree of automation, high energy consumption, poor reliability, and inability to meet the needs of industry development. The digestion and absorption are seriously lagging behind. The technical level, performance, and reliability of specialized equipment for wires and cables have immeasurable benefits in improving the quality, production efficiency, and material utilization of wire and cable products. We should actively introduce technology and independently innovate and develop high-performance and high-level specialized equipment for wires and cables, in order to serve the circular economy of the wire and cable industry. Finally, actively develop environmentally friendly wire and cable products and strengthen the recycling of waste wire and cable products.

At present, the production of wire and cable products extensively uses polymer chemical materials such as rubber, polyvinyl chloride, and polyethylene, which generate a large amount of toxic and harmful gases during the production of wire and cable products. Therefore, it is necessary to actively develop environmentally friendly wire and cable raw materials and produce environmentally friendly wire and cable products. After developing environmentally friendly wire and cable products, Japanese cable companies such as Fujikura actively promoted the government to issue standards for environmentally friendly wire and cable products in order to monopolize the market.

In recent years, the sales share of environmentally friendly wire and cable products has rapidly expanded, and ordinary wire and cable and flame-retardant wire and cable cannot compete with them. The leftover materials generated during the production process of wires and cables can be directly recycled and reused. It is recommended to establish a professional "polyvinyl chloride" waste recycling and treatment plant, process it at designated locations, and repurpose it to avoid secondary pollution.

In high-voltage power cable lines, in addition to connecting the cable core conductor to ensure electrical connectivity, the connection head of self accommodating oil filled power cables must maintain smooth oil flow in the core. However, due to the manual operation of the connector on site, the process conditions are poor. Therefore, for the wire core connection, the problem of electric field concentration at the wire core connection is dealt with under crimping conditions. By increasing the insulation thickness, the working field strength of the joint is reduced to ensure the safe operation of the connector. Usually, additional insulation is wrapped around the insulation of power cables, and a conical stress cone is formed at both ends of the additional insulation to reduce the working field strength of the joint and ensure the safe operation of the joint. An insulation shield is wrapped around the additional insulation to connect the insulation shields of the two ends of the power cable, and an outer bright steel pipe is used to isolate the insulation from the atmosphere, so as to withstand the oil pressure of the oil filled power cable.