In this paper, we presents overview of performance qualification and testing method for new OCL (overhead contact line) up to 400 km/h. The track-side and on-board monitoring system are proposed to measure current collection performance. The proposed systems will be capable of measuring abnormal behavior quality of current collection between pantograph and contact wire.

The detail design for overhead line can be divided into a MD(Mounting Diagram) design and pegging plan process. A MD design for a high-speed overhead line was performed by the design software. The MD design of Honam High-Speed catenary system was also performed the software. However, the MD design software for 400km/h overhead line is needed, because the tension of wires and conditions are different from 350km/h system. Therefore, in this study, a MD design software for 400km/h overhead line system is developed.