What are the differences between power cables and telecommunication cables?
Power cable is used to transmit power, from the general sense, the power cable used to transmit high voltage, 380, and 220 of the electrical energy, communication cable is used to transmit the communication signal, the signal is divided into analog and digital two, their very low voltage only a few volts, so these two characteristics cable required different structure is not the same. The power cable needs to minimize the power consumption during the transmission of electric energy, and its weight should be suitable for erection and laying, as well as good abrasion resistance, anti extrusion and folding function.
Telecommunication cable: a cable used primarily for transmitting telephone, telegraph, facsimile documents, television and radio programs, data and other electrical signals. Twisted by one or more wires insulated from each other. Compared with the overhead of communication cable, communication capacity, transmission has the advantages of high stability, good secrecy, less affected by natural conditions and disturbance etc.. Generally, it can be divided into local communication cables, long distance symmetrical cables, coaxial cables, submarine cables, optical fiber cables, radio frequency cables and so on.
Power cables are cables used to transmit and distribute electrical energy. Commonly used in urban underground power grid, power station leads the line, the internal power supply of industrial and mining enterprises and the underwater transmission line across the river and the sea. In power systems, cable products are commonly used, including 1-500KV and above voltage levels, and various insulated power cables. The basic structure of the utility model is composed of four parts: a wire core (conductor), an insulating layer, a shielding layer and a protective layer. Generally buried in the soil or deposited in the interior, ditch, tunnel, line insulation distance is small, not tower, covering less, basically not occupy the ground space.
