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The difference between aluminum clad steel core aluminum stranded wire and steel core aluminum stranded wire
Release time:
2021-07-09
The difference between aluminum-clad steel-core aluminum stranded wire and steel-core aluminum stranded wire is that their steel core is different. The steel core of ACSR is made of galvanized steel wire. The aluminum-clad steel wire in the aluminum-clad steel-core aluminum stranded wire is a bimetallic wire. It uses high temperature and high pressure to continuously extrude electrical aluminum and wrap it on high strength steel wire
Aluminum-clad steel core aluminum stranded wirewithSteel-reinforced aluminum stranded wireThe difference between them is their steel core. The steel core of ACSR is made of galvanized steel wire. The aluminum-clad steel wire in the aluminum-clad steel-core aluminum stranded wire is a bimetallic wire. It uses high temperature and high pressure to continuously extrude electrical aluminum and wrap it on high-strength steel wires, thereby forming an about 8um thick aluminum-steel bonding penetration layer between aluminum and steel. After the aluminum layer is wrapped in the aluminum layer, and then lightly press the bimetal synchronous deformation machine for multiple times to pull out, the ratio of aluminum and steel will be deformed, making the combined penetration layer of aluminum and steel more uniform and firm.
Specification range: 15/3 mm21225/100 mm2.
Model: JL/LB1A Model: JL/LB1A
Product Performance
1 Electrical properties include the conductance of the aluminum cladding in the aluminum-clad steel-cored aluminum wire, expressed by its DC resistance of 20. The resistance of the hard aluminum wire used in the stranded wire is 28.264n m.
2 The rated tensile strength of the aluminum-clad steel-core aluminum stranded wire is the sum of the tensile strength of the aluminum part of the aluminum-clad steel-core aluminum stranded wire and the tensile strength of the aluminum-clad steel core.
Executive standard: gb/t1179-2017 "Round Wire Concentric Stranded Overhead Conductor" gb/t1179-2017 "Round Wire Concentric Stranded Overhead Conductor"
Compared with the steel core aluminum stranded wire, aluminum clad steel core aluminum stranded wire has what characteristics:
1. Electromechanical characteristics
The structure size and mechanical properties of the aluminum stranded wire and the steel core aluminum wire are the same, but the unit length and weight of the aluminum-clad steel core aluminum stranded wire are about 5 lighter than the steel core aluminum stranded wire, so 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 than the latter.
The DC resistance of the aluminum-clad steel-core aluminum wire 20 is about 3.2 times lower than that of the steel-core aluminum stranded wire; the guaranteed calculated breaking force of the aluminum-clad steel-core aluminum stranded wire is about 5.5 times lower than that of the steel-core aluminum stranded wire.
2. Corrosion resistance
Overhead line high-voltage conductors are directly affected by galvanic corrosion in the atmosphere. In the steel core aluminum stranded wire, the galvanic corrosion is caused by the contact between the galvanized layer on the surface of the steel core and the aluminum wire. Because the plating is lower than aluminum, the galvanized layer is rapidly corroded, and the steel core is exposed to the atmosphere and corroded. Also, after the coating is corroded, the contact between the steel core and the aluminum wire causes galvanic corrosion. The potential of aluminum is lower than that of iron, and the aluminum wire is corroded.
For the aluminum stranded wire of the aluminum-clad steel core, because the aluminum steel in the aluminum-clad steel wire has good metallurgical bonding, there is no aluminum contact between the monofilaments in the stranded wire. They do not have electrochemical corrosion between different metals, which can greatly slow down the corrosion rate of the wire, thereby extending the service life.
It can be said that corrosion resistance is the biggest advantage of aluminum-clad steel core aluminum stranded wire.
Above isAluminum-clad steel core aluminum stranded wire manufacturersThe content of the explanation, friends can refer to each other. Want to know moreoverhead insulated conductorThe content, can pay attention to us.
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