Power Cable shielding layer, two cases, the role of low-voltage cable, power cable shield is twofold: first, because the current power cable through the large, Liuba low voltage cable sales, current creates a magnetic field around, in order not to Effect of other elements, so add this electromagnetic shielding layer can be shielded in the cable; the second is to play a role in ground protection, current if damage occurs within the cable core, leaked may flow along the shield as a ground network , play a security role. Low voltage power cables and low voltage power distribution grid in the design process of selecting cable specifications, the cable should be considered by the load current, low-voltage cable supplier Mizhi, insulated conductor temperature does not exceed the allowable operating temperature of the long-term, that choice should rise conductor cross-section ; and economic costs of lifetime at least, that is the initial investment and economic life line loss expenses and minimum period, which is called by economic current selection conductor cross-section. The comparison of two selected cross-section, whichever is greater. Then, according to the length of cable lines, check the voltage loss exceeds a predetermined value. In the optical fiber composite low voltage cable and aluminum cable use, the often-asked question cable line voltage loss, but also a customer mentioned the voltage drop of the cables. Voltage loss and voltage drop cable lines is not exactly the same concept. Low voltage cables in the Middle East _ cables, power cables _ gold Mizhi low voltage cables supplied by Cable Co., Ltd. Shaanxi Baoli. Shaanxi Baoli Cable Co., Ltd. (www.jinlidl.com) (www.jinlidl.cn) is Xi'an, power cables leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In the cable, power cable leading gold Middle East with the staff warmly welcome all inquiries negotiations to create the Middle East cable, power cable gold better future.