Cloth pillars;  Components;  Drawing management;  Computer-aided design

AutoCAD R14 software is used to develop an electrified railway drawing management system, which has the function of design and drawing of railway traction power supply system, and can realize the step-by-step reporting of drawings from power supply section, sub-bureau to road bureau. The method of customizing the AutoCAD R14 system menu as the user’s own menu, the design idea of the component library call module, the implementation process of the station column program, and the method of saving the disk using block operation are expounded, and the system is programmed in AutoLISP language. The trial operation shows that the system has strong reliability, simple operation and fast operation speed.