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Small knowledge of steel core aluminum stranded wire
Release time:
2022-04-22
Steel core aluminum stranded wire is made of aluminum stranded wire and steel wire, which is suitable for overhead transmission line. Located inside the steel "core", the outside is wrapped with aluminum wire; the steel core mainly increases the strength, and the aluminum stranded wire mainly plays the role of power transmission.
Steel-reinforced aluminum stranded wire, English professional name: aluminum conductor steel reinforced,ACSR, refers to a single-layer or multi-layer aluminum stranded wire stranded outside the galvanized steel core wire. The main technology is used in China's power and transmission system line design industry.
related structure
Steel core aluminum stranded wire is made of aluminum stranded wire and steel wire, which is suitable for overhead transmission line.
Located inside the steel "core", the outside is wrapped with aluminum wire; the steel core mainly increases the strength, and the aluminum stranded wire mainly plays the role of power transmission;
Related models
The models of ACSR can be divided into: JL/G1A JL/G1B JL/G2A JL/G2B JL/G3A
Where: G1A or G1B refers to ordinary strength steel wire.
G2a or g2b is a high strength steel wire.
G3a is an ultra-high strength steel wire.
Model difference: take JL/G1A-240/30 ACSR as an example.
National standard (GB/T1179-2008)JL/G1A-240/30;
In the national standard (GB\/T1179-1983) to LGJ-240\/30 as a representative.
Main application
For high-voltage transmission system lines, due to the limited path management of tourist lines and the impossibility of mounting multiple lines on one development path, people have come up with the method that such an important path can be adopted, a set of iron towers and multiple wires, I .e. one line design is equivalent to mounting multiple lines. For 500KV transmission lines, most Chinese enterprises adopt the method of hanging four wires, this way of stringing is generally called the same tower and rack.
Related advantages
Steel core aluminum wire has the characteristics of simple structure, convenient installation and maintenance, low line cost, large transmission capacity, conducive to river ditch laying, good conductivity, sufficient mechanical strength, high tensile strength, and long distance from the tower. Therefore, it is widely used in overhead transmission and distribution lines of various voltage levels.
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