电线制造(国外英文资料).docVIP

电线制造(国外英文资料) Wire and cable for short cable, the narrow sense refers to the cable insulation cable, it can be defined as the collection consists of the following parts: one or a plurality of insulated wire core, and their respective may have a coating layer, total protective layer and outer protective layer. The cable can also have additional no insulated conductors. Catalog Classification of wire and cable products, process characteristics of wire and cable products, the main process of wire and cable, the status quo of wire and cable industry Classification of wire and cable products 1, bare wire and bare conductor products The main features of products: pure metal conductor, insulation and sheath, such as steel core aluminum stranded wire, copper bus, electric locomotive line; processing technology is the pressure processing, such as melting, rolling, drawing, stranding / pressing twist; products are mainly used in suburban and rural areas, users the main line, switch cabinet etc.. 2. Power cables The main features of the products are: crowded outside the conductor (around) insulation layer, such as overhead insulated cables, or a few cores (corresponding to the power system phase, the zero line and the ground), such as more than two core overhead insulated cables, or increases the jacket layer, such as plastic / rubber. The main technological processes are drawing, stranding, insulation, extrusion (wrapping), cabling, armoring, sheathing, extrusion, etc., and there are some differences in different process combinations of various products. Products are mainly used in the hair, distribution, transmission, change, power supply line of the strong power transmission, through the current of large (tens of thousands to thousands of security), high voltage (220V to 500kV and above). 3. Wire and cable for electrical equipment The main features of this kind of products are: different specifications, a wide range of applications, the use of voltage in 1kV and more, with s