The lightning induced fault which is the most common fault reason may cause difficulty in detecting reflex wave and other problems. This paper proposes a new type of algorithm aimed at optimizing the fault location results by lightning location system record and traveling wave data. The suspected distance correspond to suspected reflex wave is assumed to be a kind of standard

so the nearest cloud-to-ground flash record is searched from all suspected fault locations calculated by suspected reflected surge from the fault point from measured data for removing the pseudo-root of fault location and finding the seemingly traveling wave fault location. According to the line direction of line corridor and the tendency of the nearest cloud-to-ground flash record

the space trend approach index of nearest cloud-to-ground flash record and tower is calculated

and the space trend approach index is used to optimize the traveling wave fault location result. The feasibility of the proposed method is validated by the measured traveling records. This work is supported by National Natural Science Foundation of China (No. U1202233

No. 51267009)

Key Projects of Yunnan Province (No. 2011FA032)and Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) of China (No. 20105314110001).