Practice in Speed-upgrade Improvement Project of No.18 Tangential Point Wiring of OCS
As the key equipment of high speed railway OCS,tangential point wiring is the link for pantograph transition between the main track and the side track,whose safe operation has stringent requirements for pantograph-catenary matching.After the improvement construction of the Guiyang-Guangzhou Railway was completed,the operating speed was raised from 250 km/h to 300 km/h.This paper mainly elaborates on the improvement project of changing the"small stagger"layout into the"large stagger"layout for the No.18 tangential point wiring of OCS.The structure of No.18 tangential point wiring,the spatial position of point wiring and turnout,the pantograph-catenary transition matching,etc.,in the two layouts are analyzed.Focusing on the construction safety and equipment operation safety of existing high speed railway OCS,the key and difficult issues in the speed-upgrade improvement of No.18 tangential point wiring of existing high speed railway OCS and their control schemes were summarized from construction scheme,construction preparation,and control of key and difficult issues in construction,providing a reference for similar improvement projects.
OCStangential point wiringstaggerspeed-upgrade improvement construction
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