Da Zheng Electric Wire JL/LB20A-240/30 Anti oxidation 35KV Collector Line Aluminum Clad Steel Core Aluminum Stranded Wire

Description :

Da Zheng Electric Wire JL/LB20A-240/30 Anti oxidation 35KV Collector Line Aluminum Clad Steel Core Aluminum Stranded Wire

Characteristics of Aluminum Clad Steel Core 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 aluminum clad steel cored aluminum stranded wire

The weight per unit length is about 5% lighter than that of steel cored aluminum stranded wire. From this, it can be concluded that the horizontal wind loads of the two are the same, but the former has

The vertical load 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 contacts the aluminum wire

Electrochemical corrosion occurs because the plating potential is lower than that of aluminum, resulting in the coating being quickly corroded and exposing the steel core to the atmosphere

Corrosion. In addition, after the coating is completely corroded, electrochemical corrosion occurs when the steel core comes into contact with the aluminum wire, and the potential of aluminum is lower than that of iron

The aluminum wire has been corroded again.

For aluminum clad steel core aluminum stranded wire, due to the good metallurgical bonding between aluminum and steel in aluminum clad steel wire

The single wires are all in contact with aluminum, and there is no electrochemical corrosion between different metals, which can greatly slow down the wire

Corrosion rate, thereby extending its service life. It can be said that corrosion resistance is the advantage of aluminum clad steel cored aluminum stranded wire.

Da Zheng Electric Wire JL/LB20A-240/30 Anti oxidation 35KV Collector Line Aluminum Clad Steel Core Aluminum Stranded Wire

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