Grounding fault a ground fault circuit phenomenon can be divided into: single-phase, the two-phase and three-phase to ground. Ground fault transient earth permanent grounding of two. The former is usually ground wire insulation breakdown, the latter is usually the lightning flashover and wires and other foreign objects falling. One of the most common is the overhead line single phase. Analyzing ground fault by detecting the line voltage, and according to Table 1 ascertain ground fault. Looking ground for overhead transmission lines shorter when looking ground, can be arranged along the staff to conduct a comprehensive inspection, but for a long time looking for overhead transmission lines ACSR ground, should be carried out using the preferred method. First in line at half the length of Tension rod segments, respectively, the three-phase line open drainage line ACSR price, the entire line is divided into two sections ACSR company and then were measured with 2500V megger three phase conductors insulation resistance, according to the measurement results can ascertain a certain grounding or two lines are grounded. Second segment continues to find ACSR manufacturers based on the determination, and gradually narrow down your search. Ground to be narrowed down to a certain extent, can be arranged along the staff to conduct a comprehensive inspection. This can save time, reduce the amount of labor, thereby improving efficiency. JL / LB20A ACSR, ACSR, Anhui Electric Group is provided by Anhui Electric Group Co., Ltd .. Anhui Electric Group Co., Ltd. (www.ahecable.com) strong, credible, in Chuzhou bare wires and bare conductor products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Anhui Electric Group and you hand into the brilliant, for a better future!