110 kV aluminum clad steel core aluminum stranded wire manufacturer JL/LB20A-800/55 national standard wire

Description :

　　110 kV aluminum clad steel core aluminum stranded wire manufacturer JL/LB20A-800/55 national standard wire

　　Product details introduction:

　　 JL/LB20A-800/55 manufacturer, aluminum clad steel core aluminum stranded wire is an overhead conductor composed of aluminum clad steel wire as a reinforced core and hard aluminum wire twisted together. Aluminum clad steel core aluminum stranded wire is made by first producing aluminum clad steel stranded wire, using it as the wire core, and then twisting multiple aluminum wires on its outer surface, which is called aluminum clad steel core aluminum stranded wire. Compared with ordinary steel cored aluminum stranded wire, aluminum clad steel cored aluminum stranded wire is 5% lighter in weight, 2-3% higher in current carrying capacity, 1-2% less sag, 4-6% less power loss, and has good anti-corrosion performance, long service life, simple structure, easy installation and maintenance, and large transmission capacity. It is widely applicable to transmission lines of various voltage levels and transmission lines that require an increased aluminum steel section ratio. It can also be used for transmission lines in coastal areas, saline alkali beaches, and third - and fourth level industrial pollution areas.

　　Specification range: 15/3mm2~1225/100mm2

　　Product Features:

　　 1. The electrical properties of aluminum clad steel cored aluminum stranded wire include the conductivity of the aluminum coating in the aluminum clad steel wire, expressed as its kilometer DC resistance at 20 ℃. The resistivity of the hard aluminum wire used for the stranded wire is 28.264 n Ω· m.

　　 2. The rated tensile strength of aluminum clad steel core aluminum stranded wire is expressed as the sum of the tensile strength of the aluminum part that makes up the aluminum clad steel core aluminum stranded wire and the tensile strength of the aluminum clad steel part.

　　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.

　　 Aluminum clad steel core aluminum stranded wire specifications 15/3~1405/115, in accordance with the standard GB/T1179-2017.

　　 110 kV aluminum clad steel core aluminum stranded wire manufacturer JL/LB20A-800/55 national standard wire

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