The general wire and cable is insulated with plastic and rubber. These materials are conventional engineering materials, have a rich source, can meet large-scale production, and the cost is relatively low.
The outermost layer of the power cable is generally a rubber or rubber composite sleeve. The function of this layer is to insulate, and also to protect the cable from damage.
With the development of China's national economy, urban construction is becoming more and more prosperous, and its wire market for decoration needs to be strong.
Wire and cable is an important industry in the national economic construction. After 50 years of construction, especially the rapid development of reform and opening up 20 years, the product variety satisfaction rate has reached more than 95%, and the domestic market satisfaction rate has reached more than 90%.
The choice of cable cross-sectional area is related to the investment, the loss of the line and the voltage quality, and the service life of the cable.
