With the continuous development of the social market, the demand for power resources is increasing. With the rapid increase in power consumption, the task of power allocation has become more important. Therefore, various power transmission equipment play a vital role . Steel-cored aluminum stranded wire and aluminum-clad steel-cored aluminum stranded wire are the most frequent wires in the transmission circuit, but there are still certain differences in the use of the two. learn.

                                               

What is Aluminum Clad Steel Wire?
Aluminum-clad steel wire, also called aluminum-clad steel-cored aluminum stranded wire, is an overhead conductor composed of aluminum-clad steel wire as a reinforcing core and hard aluminum wire. Compared with ordinary steel-cored aluminum stranded wire, aluminum-clad steel-reinforced aluminum stranded wire is 5% lighter in weight, 2-3% higher in carrying capacity, 1-2% lower in arc sag, 4-6% lower in power loss, and Good anti-corrosion performance, long service life, simple structure, convenient erection and maintenance, and large transmission capacity.
Features of aluminum clad steel cored aluminum stranded wire:
(1) The size and performance of the aluminum-clad steel wire can be adjusted in a relatively large range.
(2) Steel and aluminum belong to metallurgical bonding, so the bonding strength is good, which is conducive to the advantage of aluminum-clad steel wire in terms of strength.
(3) Compared with galvanized steel wire, it has better heat resistance, because the melting point of aluminum is higher than that of zinc, and the melting point of steel is higher.
(4) Clad steel wire has good corrosion resistance. If the aluminum-clad steel wire is stranded with aluminum wire or aluminum alloy wire and applied on overhead transmission lines, the problem of galvanic corrosion will be weakened.
(5) The section of the wire can be made into complex shapes.
(6) Like galvanized steel wire, aluminized steel wire is manufactured by the method before hot dipping, and it is a reinforcing material, not a guide material.

What is ACSR Conductor?
Aluminum-steel-reinforced wire refers to a reinforced conductor in which single-layer or multi-layer aluminum strands are twisted outside the galvanized steel core wire. ACSR has the advantages of simple structure, convenient erection and maintenance, low line cost, large transmission capacity, and is conducive to the laying of special geographical conditions such as across rivers and valleys. It has good electrical conductivity, sufficient mechanical strength, and high tensile strength. , The tower rod distance can be enlarged and so on. Therefore, it is mainly used in the electric power and transmission line industries of various voltage levels. When using ACSR, attention should be paid to the risk of electric shock, and operations must be strictly performed in accordance with its installation standards.

What are the characteristics of ACSR wire?
1. The ACSR wire has a certain degree of insulation, which can reduce the damage rate during use;
2. The conductivity of the steel-cored aluminum stranded wire is high, and the signal will not be interrupted in the middle;
3. The plasticity of the steel-reinforced aluminum stranded wire is good, which brings more convenience to the use.                                               

What are the differences between aluminum-clad steel-reinforced aluminum stranded wire and steel-reinforced aluminum stranded wire?
The difference between aluminum-clad steel-reinforced aluminum stranded wire and ACSR wire is that their steel cores are different. The steel core of the ACSR is made of galvanized steel wire. The aluminum-clad steel in the aluminum-clad steel-cored aluminum stranded wire is a bimetallic wire. It adopts high temperature and high pressure to continuously extrude and coat electrical aluminum on high-strength steel wire, and forms an aluminum-steel combined penetration layer with a thickness of about 8um by reducing aluminum and steel. After the steel wire coated with the aluminum layer is drawn multiple times by the light bimetal synchronous deformation machine, the aluminum and steel are deformed in the same proportion, making the aluminum-steel bonded penetration layer more uniform and firm.

What are the characteristics of aluminum-clad steel-reinforced aluminum stranded wire compared to steel-reinforced aluminum stranded wire?

1. Electromechanical characteristics: The structural size and mechanical properties of aluminum-clad steel-reinforced aluminum stranded wire and ACSR wire are the same, but the weight per unit length of aluminum-clad steel-reinforced aluminum stranded wire is about 5% lighter than that of steel-reinforced aluminum stranded wire.
2. Corrosion resistance: overhead wires are subjected to electrochemical corrosion in the atmosphere. In ACSR, the coating on the surface of the steel core is in 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, and the steel core is exposed to the atmosphere and corroded.

For the aluminum-clad steel-cored aluminum stranded wire, due to the good metallurgical bonding between the aluminum and steel in the aluminum-clad steel wire, the single wires in the stranded wire are all in contact with aluminum, and there is no electrical contact between different metals. Chemical corrosion, which can greatly slow down the corrosion rate of the wire, thus prolonging its service life