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Share the role and use of ACSR
Release time:
2022-07-25
Electricity is a renewable resource, but my country's current power supply is still very tight. This depends on the large population of our country, which has caused a huge amount of electricity consumption. For this reason, it is very important to speed up the deployment of electricity in various regions of the country. Important, and various transmission facilities are also very worthy of attention. For example, steel core aluminum strand is a transmission facility that helps transmission, which is useful in the process of power transmission.
Electricity is a renewable resource, but my country's current power supply is still very tight. This depends on the large population of our country, which has caused a huge amount of electricity consumption. For this reason, it is very important to speed up the deployment of electricity in various regions of the country. Important, and various transmission facilities are also very worthy of attention. For example, steel core aluminum strand is a transmission facility that helps transmission, which is useful in the process of power transmission.
Steel core aluminum stranded wire is commonly used in high voltage transmission lines in the power industry, which has the advantages of high conductivity, good thermal stability, low sag, self-damping and so on. It is a necessary way to transmit power from the power generation end to the power receiving end, and the steel core aluminum stranded wire of overhead transmission line occupies a very important position.
The steel core bears the mechanical load of the conductor, and the main contribution of the aluminum strand to the conductor is to bear the current rather than the mechanical load, so the operating temperature of the conductor will not be limited by the softening characteristics of the aluminum strand. The working temperature is completely determined by the softening characteristics of the steel core, the recrystallization temperature is higher, and the normal mechanical strength is maintained at higher temperatures. Good corrosion resistance and thermal stability, long-term working temperature up to 250 without reducing its mechanical strength. Under high temperature conditions, the sag has no obvious change. It also has its own damping characteristics, which is conducive to reducing the breeze vibration and line loss of transmission lines.
The installation and maintenance of ACSR is very convenient, the transmission capacity is large, and it is also conducive to crossing rivers, valleys and other geographical conditions. It has the advantages of good conductivity, sufficient mechanical strength, high tensile strength and increased tower spacing, and is widely used in overhead and distribution lines of various voltage levels.
Steel core aluminum stranded wire has been widely used in the power industry since its emergence; it has the advantages of high conductivity, good thermal stability, low sag, self-damping and so on. High-voltage transmission line is a necessary way to transmit electric energy from the power generation end to the power receiving end, and the overhead transmission line plays a very important role.
When the steel core aluminum strand is in use, it is strictly prohibited to use any heating phenomenon in the process of use, especially for any form of heat change phenomenon of prestressed steel core aluminum strand, so as not to reduce the mechanical properties of prestressed steel.
In addition, the construction industry engineers, for the construction of prestressed steel core aluminum strand, it is better to strictly prohibit the welding, prestressed steel core aluminum strand because there are more welding spots on the top, the welding spots on the steel, compared with the strength of the steel itself are much lower, so that the prestressed steel core aluminum strand in use, especially in the process of tensioning, it will cause many welding spots everywhere, wire breakage phenomenon. In construction projects, when many steel-reinforced aluminum strands are cyclically constructed, the resulting bending shape is indispensable, but the bending radius should not be less than about 3 times the diameter of prestressed steel-reinforced aluminum strands.
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Yincun Economic Development Zone, Renqiu City, Cangzhou City, Hebei Province