Use of steel core aluminum stranded wire

At present, most of China uses aluminum-clad steel stranded wire as the conductor; the steel core inside is mainly used to increase strength, and aluminum stranded wire is mainly used to transmit electrical energy. The specifications of the wires vary depending on the voltage level. For example, the wires used in China's current 500 kV transmission lines are generally LGJ-400 / 35 wires. L stands for aluminum wire, G stands for steel core, J stands for stranded wire, 400 stands for aluminum stranded wire, which means 400mm2, 35 stands for steel, and 35mm2.
Steel core aluminum stranded wire is a reinforced conductor with single or multiple layers of aluminum strands twisted outside the galvanized steel core wire. Mainly used in the field of power and transmission lines.
In the era of rapid development of science and technology, many modern industrial equipment have already appeared in our world and existed in our lives. Steel core aluminum stranded wires also play a major role in power.
Steel core aluminum stranded wire means that the inside is a steel core, and the outside is wound around the steel core by twisting the aluminum wire; the steel core is mainly used to increase the strength of the conductor, and the aluminum stranded wire is mainly used for transmission The role of electrical energy.
The steel core aluminum stranded wire has a very simple structure, is very convenient to lay, and is easy to maintain. The cost of the line is low, the transmission capacity is large, and it is also conducive to laying across special geographical conditions such as rivers and valleys. It has good electrical conductivity and sufficient Its mechanical strength, large tensile strength, and tower distance can be enlarged. Therefore, most of them are used in overhead power transmission and distribution lines of various voltage levels.