Classification of section shape of Aluminum bus plate

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Classification of section shape of Aluminum bus plate

Author:Frank  Time:2023-05-06
Classification of section shape of Aluminum bus plate

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Classification of section shape of Aluminum bus plate
 
Aluminum bus plate: the resistivity is about 1.7 to 2 times that of copper, and the weight is only 30 percent of copper, so in the same length and resistance, the Aluminum bus plate is only half the weight of the copper bus. And the price of aluminium wire is lower.Therefore, in the present country, in the house and outside distribution devices in general use Aluminum bus plate.

 
According to section shape:
 
1. Rectangular section: with good heat dissipation, small skin effect, simple installation and convenient connection.It is commonly used in power distribution in 35KV and below.Work when the current exceeds the largest cross section of a single bus bar allows current, each phase can use two or three rectangle busbar is fixed on the support insulator and the distance between each shall be equal to the thickness of the a, to ensure good heat dissipation.
 
2. Circular cross section: because the circular section does not have the place where the electric field is concentrated, in the outdoor power distribution device above 35KV, the circular section bus is mostly used to prevent the generation of the corona. 【Aluminum bus plate
 
3, Channel section: trough busbar current distribution uniformity, and compared with the rectangle busbar section, has good skin effect is small, cooling condition, metal high material utilization ratio, high mechanical strength, etc.When the working current of the busbar is large, the groove bus is usually used in each phase when it requires more than three rectangular bus lines to meet the requirements.
 
4. Tubular cross section: tubular bus is a hollow conductor with small effect and high voltage of corona discharge.In more than 35KV of outdoor power distribution devices, the tube bus is used. Aluminum bus plate



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