Wire and cable products classification 1 Xi'an cable engineering, power system power system applications of wire and cable products, including overhead power lines with bare wires, bus (bus), power cables and electrical equipment, electrical equipment, wire and cable. 2, the information transmission system for use in information transmission system of wire and cable, telephone cable, cable TV, data transmission cables, mobile radio communication system with RF cable and a variety of electronic cables and so on. In recent years, the proportion of fiber optic cable in the information transmission network increases rapidly as the main transmission media information transmission lines. 3, electrical equipment, electrical wires and cables inside the instrument in two large power and information systems, from the starting point of the system (such as generators, signal transmitter), through the various nodes of the system (such as transformers, PBX) to the user terminal ( such as household appliances, telephones, televisions, computers), all of which use a lot of equipment wire and cable. The cable wire and cable by function Xi'an, divided into: one is to convert electrical energy into magnetic energy or magnetic energy is converted to electrical energy carrier - magnet wire (magnet wire); another cable Xi'an Which is good, as the device components connecting line, the transmission power or transmission of signals plays a role. Cable resistance is calculated according to the resistance formula: R = ρ × l / s where ρ is the resistivity, l is the length, s is the cross sectional area whereby the copper wire was resistance can seek attention, resistance and temperature has a relationship,... But here we are generally considered to be at room temperature. So not consider temperature resistivity of copper ρ = 0.01851. mm2 / m Xi'an cable manufacturers, this is a constant object resistance formula: R = ρL / S where:. R is the resistance of the object (ohms); ρ is the resistivity of the material, in units of ohm (.. mm2 / m) L is the length, in meters (m) S is the cross-sectional area, in square meters (mm2) is such a distance L (m) of a single cable, the resistance is R (wire) = ρ * L / S cable Which Xi'an Well, Xi'an cable, the Middle East and cable, power cable provided by the Shaanxi Jin Bao Li cable Limited. Shaanxi Baoli Cable Co. (www.jinlidl.com) strong, credible, in Xi'an power cable industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Middle East cable, power cable, and you hand the gold into the brilliant, for a better future!