Aluminum wire acceptance rules and test methods: Product should be inspected before leaving the factory after factory resistant steel core aluminum stranded how to sell, each factory's products should be accompanied by quality inspection certificate. Before sampling twist: from any number of strands used round aluminum and galvanized steel wire, on the less than 10 percent for several years to take root, each test sample contained should be selected to take on each sample . 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. Stranded steel core aluminum heat sales, Anhui Electric Group, stranded steel core aluminum heat provided by the Anhui Electric Group Co., Ltd .. Anhui Electric Group Co., Ltd. (www.ahecable.com) is Chuzhou, bare wires and bare conductor products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Anhui Electric Group leadership with the staff warmly welcome all inquiries negotiations to create Anhui Electric Group, a better future.