Aluminum clad steel core aluminum stranded wire is a high-quality transmission wire, the following is a detailed introduction:

1. Definition and Structure

Aluminum-clad steel core aluminum stranded wire, also known as aluminum-clad steel wire, is an overhead conductor composed of aluminum-clad steel wire as a reinforced core and hard aluminum wire stranded. It uses high-quality aluminum foil as the conductive core wire, and the pure aluminum layer is covered on both sides, with a layer of steel core in the middle. This structure makes the aluminum-clad steel-reinforced aluminum stranded wire not only have the light weight and high conductivity of aluminum, but also have the high strength and good corrosion resistance of steel.

2. features and advantages

Light weight: Compared with ordinary ACSR, aluminum-clad ACSR is about 5% lighter, which makes the erection and maintenance process more convenient.
High current carrying capacity: the current carrying capacity of aluminum-clad steel core aluminum stranded wire is increased by 2 ~ 3%, which can meet the demand of larger capacity power transmission.
Small sag: The sag of aluminum-clad steel-reinforced aluminum stranded wire is reduced by 1 ~ 2%, which helps to reduce the sag of the line under the action of wind and gravity and improve the stability of the line.
Low power loss: The power loss of aluminum-clad steel core aluminum stranded wire is reduced by 4 to 6%, which improves the efficiency of power transmission.
Good anti-corrosion performance: The aluminum alloy outer layer of the aluminum-clad steel core aluminum stranded wire has good corrosion resistance, which can effectively prevent the wire from being damaged by corrosion and prolong the service life.
Simple structure: The aluminum-clad steel-reinforced aluminum stranded wire has a simple structure and is easy to produce and process.
Easy to erect and maintain: The lightweight and high-strength characteristics of aluminum-clad steel-reinforced aluminum strands make their erection and maintenance relatively easy.

3. Application Scenarios

Aluminum-clad steel core aluminum stranded wire shows its applicability in a variety of application scenarios due to its superior anti-corrosion performance and electromechanical properties:

High-voltage and ultra-high-voltage transmission lines: aluminum-clad steel core aluminum stranded wire has been widely used in foreign high-voltage and ultra-high-voltage transmission lines. It has superior anti-corrosion performance and electromechanical performance, and is suitable for improving the transmission capacity and efficiency of transmission lines.
Coastal areas and areas with serious industrial air pollution: aluminum clad steel core aluminum stranded wire is mainly used in these areas in China, and its good corrosion resistance is especially suitable for application in coastal and heavily polluted areas, which can reduce the corrosion of air pollution on the wire.
Energy conservation, emission reduction and new energy fields: With the national promotion of energy conservation, emission reduction and the use of new energy, aluminum-clad steel core aluminum stranded wires are used to build "efficiency maximization, resource conservation, and environment-friendly" green transmission lines.
Contact wire for electrified railway: aluminum clad steel wire can be used for contact wire (tram wire) for electrified railway because of its good mechanical and electrical properties, and its shape can be specially designed to meet different application requirements.
Transformers and capacitors and other power equipment: In transformers and capacitors and other equipment, aluminum-clad steel core aluminum stranded wires can be used to improve heat dissipation and corrosion resistance, and are suitable for transmission lines, transformers, capacitors and other fields in the power industry.

4. Maintenance and Inspection

In order to ensure the normal operation and prolong the service life of the aluminum clad steel core aluminum stranded wire, it is necessary to carry out regular maintenance and inspection. Specifically include:

Ventilation and heat dissipation: The aluminum-clad steel core aluminum stranded wire needs good ventilation to avoid overheating. It cannot be installed in a closed place. It is necessary to ensure a good heat dissipation space.
Regular inspection: regularly check the appearance and fixation of the aluminum-clad steel core aluminum stranded wire to ensure that the surface of the wire is free of damage, fracture, deformation, etc., and is firmly fixed. At the same time, check the contact of the connection point to ensure good contact and qualified resistance.
Protective measures: In special environments (such as moisture, corrosion, etc.), additional protective measures such as anti-corrosion coatings and waterproof materials need to be added to the aluminum-clad steel core aluminum stranded wire to extend its service life.
In summary, aluminum-clad steel-reinforced aluminum stranded wires play an important role in power transmission and related industries due to their advantages of light weight, high strength, high conductivity, good corrosion resistance, and long life.