Zhengfan Aerial Aluminum Clad Steel Core Aluminum Stranded Wire JL/LB20A-300/25 Corrosion and Oxidation Resistant

Description :

　　Dazheng Electric Wire Co., Ltd. is one of the main production enterprises of wires, wires, cables, and optical cables in China. It is a modern enterprise engaged in the production, research and development, and sales of high-tech products such as wires, wires, cables, and optical cables. The company was established on May 16, 2007 and is located in Dazheng Industrial Park, Renqiu City, Hebei Province. It is situated in the center of Shijiazhuang, Beijing, and Tianjin, the provincial capital of Hebei Province, and is close to the beautiful North China pearl Baiyangdian, as well as the Daguang Expressway, Jinghu Expressway, Jinshi Expressway, 106 National Highway, Beijing Kowloon Railway, and Jinbao Highway running through the city, making transportation very convenient. The company covers an area of 13508 square meters, with a building area of about 8000 square meters and more than 200 employees, including 30 technical personnel. The registered capital is 105 million yuan, the fixed assets are 300 million yuan, and the annual production capacity is 900 million yuan. In 2016, the output value of aluminum products reached 120 million yuan. The company has six modern production workshops and more than 50 sets of production and inspection equipment. The production and testing equipment is advanced and complete, mainly including frame twisting machines, 1+1 cross-linking extruders, Shenma 630 tube twisting machines, 630 cage twisting machines, cold press welding machines, aluminum large pulling machines, tube twisting machines, extruders and other advanced production equipment such as DC bridges, metal tensile testing machines, electronic scales, wire winding and twisting testers, adhesion testers, etc. Testing equipment such as sexual experimental devices. Production: overhead insulated wire 1KV-35KV, steel core aluminum alloy wire, heat-resistant steel core aluminum alloy stranded wire, steel core aluminum stranded wire, aluminum clad steel core aluminum stranded wire, OPGW wire optical cable, OPPC composite phase line optical cable, steel stranded wire, aluminum clad steel stranded wire, expansion wire, cross-linked power cable, control cable and other products. Some products have a large inventory and can be shipped quickly.

　　Dazheng Electric Wire Co., Ltd. has been awarded multiple honorary titles such as provincial and municipal contract credit enterprises, consumer trustworthy units, and Hebei Province measurement qualified units for many years, thanks to advanced production equipment and exquisite technical processes, complete testing equipment and perfect testing methods, modern scientific management methods, and rigorous quality assurance systems. It has cooperated with state-owned enterprises such as China Petroleum Corporation, Hebei Construction Investment Group, State Grid Corporation of China, and Wind Power Investment Group, and has received high praise from customers for its excellent product quality and service. The development strategy of Dazheng Electric Line is to adhere to the development concept of "quality excellence, integrity pursuit forever", adhere to the development path of "strict quality, efficient management, keeping pace with the times, technological innovation, environmental protection and consumption reduction", improve scale efficiency, develop products, create the Dazheng Electric Line brand, serve China's power industry, and contribute to society!

　　Zhengfan Aerial Aluminum Clad Steel Core Aluminum Stranded Wire JL/LB20A-300/25 Corrosion and Oxidation Resistant

　　Corrosion resistance of aluminum clad steel core aluminum stranded wire:

　　a) The galvanized steel core of traditional steel cored aluminum stranded wire is in contact with the aluminum layer on the inner layer. When the wire is exposed to a certain humidity atmosphere, it has an adsorption effect on the surface, causing a water film to form between the steel wire and the stranded wire surface. The potential difference formed by the contact between zinc and aluminum, coupled with the electrolytic effect of the water film, exacerbates the corrosion on the surface of the steel wire.

　　b) The surface of the internal steel wire of aluminum clad steel core aluminum stranded wire is a high-purity aluminum layer (>99.5%), and water vapor cannot penetrate into the inner steel wire. The contact between the aluminum layer and the outer aluminum wire will not produce a potential difference, greatly improving the corrosion resistance. In addition, the inner layer of the steel core wire of traditional steel cored aluminum stranded wire is prone to corrosion. When the wire runs for a long time (more than 10 years) in heavily polluted areas or salt spray areas, due to the outer layer being a corrosion-resistant aluminum wire, although the surface condition of the wire may be good, the corrosion of the inner layer of steel wire may already be very serious. It is quite difficult for the operating unit to judge the corrosion situation of the wire; The inner and outer layers of aluminum clad steel core aluminum stranded wire are both aluminum layers, and the corrosion situation is basically the same, which may greatly utilize old wires and improve the service life of the wires.

　　Conductivity and current carrying capacity of aluminum clad steel cored aluminum stranded wire:

　　a) The conductivity of wires is directly related to the aluminum to steel ratio, with higher aluminum to steel ratios resulting in better conductivity. Due to the replacement of galvanized steel wire with reinforced steel wire coated with aluminum layer for aluminum cored aluminum stranded wire, the total area of aluminum increases, and the conductivity also increases accordingly, resulting in a decrease in resistance;

　　b) The current carrying capacity of overhead wires is constrained by the strength loss after the wires are heated again. The allowable temperature for overhead lines in China is set at 70 ° C. At the same temperature, the current carrying capacity of the wire is inversely proportional to the square root of the AC resistance. Therefore, the smaller the resistance, the greater the current carrying capacity.

　　Zhengfan Aerial Aluminum Clad Steel Core Aluminum Stranded Wire JL/LB20A-300/25 Corrosion and Oxidation Resistant

AfterSalesService :

• aluminum conductor steel reinforced (ACSR)