Research On Lightning Protection Of Catenary In Wuhan-xianning Section Of Wuhan-guangzhou High-speed Railway

Since 2009,Wuhan to Guangzhou high-speed rail opened after the operation,Wuhan-Guangzhou high-speed railway Wuhan Wuhan to the Xianning section frequent catenary trip fault,affecting the high-speed rail transport safety.And most of these trips are due to the catenary lightning caused by lightning caused by flashover,this article simply from the catenary system composition,characteristics and technical parameters made to the Wuhan-Guangzhou high-speed rail line to Wuhan,In order to improve the anti-lightning ability of high-speed railway catenary,reduce the lightning strikeout rate of high-speed railway catenary,and propose to improve the lightning resistance of high-speed rail catenary Performance improvement measures.Through the formula,in the high-speed railway on the net above the use of pillars to install additional overhead lightning line;in some special key places to install arrester.And the proposed transformation measures in Wuhan-Guangzhou high-speed rail line from Wuhan to Xianning section of the implementation of the line,after a year of running test data,and achieved a good lightning protection effect,and further in the Wuhan-Guangzhou high-speed rail line implementation of the transformation,To better improve the high-speed railway catenary lightning protection performance,reduce the catenary lightning strikeout rate,to ensure high-speed rail power supply security.