Crossing Technology Scheme of 35～110 kV High Voltage Overhead Transmission Line and Power Line
Currently,the high-voltage transmission network in China is mainly carried by overhead lines,which occupy a crucial position in power grid structure.They not only undertake the high-quality transmission of electric energy,but also affect the safe and stable operation of the power grid.Due to the particularity of power generation,transmission and power consumption,the layout of overhead transmission lines is crisscrossed,and the network structure is complex.Crossings phenomena in variety lines of different voltage levels can be seen everywhere.If the safety distance is not properly con-trolled during line installation,it may cause atmospheric over-voltage and flash-over accidents,resulting in significant eco-nomic losses.Therefore,it is crucial to carry out the cross crossing treatment of overhead transmission lines.Based on this,this article combines the design schemes and construction status of 35～110 kV overhead transmission lines in the past,deeply analyzes the disadvantages of common treatment schemes,and proposes an optimization scheme for overhead transmission line crossings,which standardizes the use of cables,saves construction investment,and provides theoretical support and guarantee for subsequent crossings.
high voltage overhead transmission linesgrid structurecrossingssafe distancecable
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