Aluminum clad steel core aluminum stranded wire JL/LB20A240/30 overhead insulated wire

Description :

　　Aluminum clad steel core aluminum stranded wire JL/LB20A-240/30 overhead insulated wire

　　Characteristics of Aluminum Clad Steel Core Aluminum Stranded Wire:

　　JL/LB20A-240/30， The difference between aluminum clad steel cored aluminum stranded wire and steel cored aluminum stranded wire lies in their different steel cores. The steel core of steel cored aluminum stranded wire is made by twisting galvanized steel wire. The aluminum clad steel wire in aluminum cored aluminum stranded wire is a type of bimetallic wire. It uses high temperature and high pressure to continuously extrude and wrap electrical aluminum on high-strength steel wire, forming an approximately 8um thick aluminum steel bonding permeation layer between the aluminum and steel. After being coated with an aluminum layer, the steel wire undergoes multiple drawing processes using a lightweight bimetallic synchronous deformation machine. The aluminum and steel deform in the same proportion, resulting in a more uniform and firm penetration layer between the aluminum and steel.

　　What are the characteristics of aluminum clad steel cored aluminum stranded wire compared to steel cored aluminum stranded wire.

　　1. Mechanical and Electrical Characteristics

　　(1) Aluminum clad steel cored aluminum stranded wire and steel cored aluminum stranded wire have the same structural dimensions and mechanical properties, but the unit length weight of aluminum clad steel cored aluminum stranded wire is about 5% lighter than that of steel cored aluminum stranded wire. From this, it can be concluded that the horizontal wind load of the two is the same, but the vertical load of the former is reduced by about 5% compared to the latter.

　　(2) The DC resistance of aluminum clad steel cored aluminum stranded wire at 20 ℃ is about 3.2% lower than that of steel cored aluminum stranded wire.

　　(3) The guaranteed breaking force of aluminum clad steel cored aluminum stranded wire is about 5.5% lower than that of steel cored aluminum stranded wire.

　　2. Corrosion resistance

　　Overhead power lines are subjected to electrochemical corrosion in the atmosphere. In steel core aluminum stranded wire, the coating on the surface of the steel core comes into contact with the aluminum wire to form electrochemical corrosion. Because the potential of the coating is lower than that of aluminum, the coating is quickly corroded, exposing the steel core to the atmosphere and causing corrosion. In addition, after the coating is completely corroded, electrochemical corrosion occurs when the steel core comes into contact with the aluminum wire. The potential of aluminum is lower than that of iron, resulting in corrosion of the aluminum wire again.

　　For aluminum clad steel core aluminum stranded wire, due to the good metallurgical bonding between aluminum and steel in the aluminum clad steel wire, the single wires in the stranded wire are in contact with aluminum, and there is no electrochemical corrosion between different metals. This can slow down the corrosion rate of the wire and extend its service life. Corrosion resistance is the advantage of aluminum clad steel core aluminum stranded wire.

　　Taking JL/LB20A-240/30-24/7 as an example for model details:

　　JL/LB20A represents the model number

　　240 represents the square of aluminum

　　30 represents the square of steel

　　24 represents the number of aluminum wires

　　7 represents the number of steel wires

　　 Aluminum clad steel core aluminum stranded wire, in accordance with the standard GB/T1179-2017;

　　 Aluminum clad steel core aluminum stranded wire JL/LB20A-240/30 overhead insulated wire

　　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 conductors, steel cored aluminum alloy conductors, heat-resistant steel cored aluminum alloy stranded wires, steel cored aluminum stranded wires, aluminum clad steel cored aluminum stranded wires, OPGW conductor optical cables, OPPC composite phase line optical cables, steel stranded wires, aluminum clad steel stranded wires, cross-linked power cables, control cables 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!

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