Abstract：Research purposes: There has many modes of 180 turnout type in the high speed railway. The research is done on comparative studies of the turnout type techniques in China for the purpose of providing technical support to high speed railway construction under the premise of meeting the needs of pantograph and catenaries coordinate.
Research conclusions: Under the crossing type，when the EMU through the main line in high speed，it will approach the side line. This situation will affects the capability of current collection between the pantograph and OCS due to the OCS crossing is a hard-point. Simple non-crossing type is easy to arrange and fix due to the system has no crossing between OCS of main line and side line. When the EMU through the main line in high speed，the pantograph can't contact the side line. But when the EMU come into main line from the side line，the pantograph angle squeezes into the main Line，while the side line and the main line are in the different sides of the pantograph center. In non-crossing with guiding centenary type, the guiding OCS is in between main line and side line，which contacts the pantograph all along in crossing center area, so as to the pantograph can transit from side line to main line or from main line to side line, and reduce the impulsion to main line OCS. There is no abnormal abrasion in guiding OCS. The type is adaptive to high speed，and has better capability of current collection between pantograph and centenary. The contact line is always in the area of the pantograph contact strip and there has no hard-point of the crossing.
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2014, Vol. 31 
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