The research of new mechanism and new measures of lightning protection have always been hot and difficult at home and abroad. Consequently

analyzing inductive lightning rods

we investigated the mechanism and evaluated its lightning protection effect. First of all

based on the finite element analysis

the chain equivalent circuit model of inductive lightning rod was established and the influencing factors on its parameters were studied. Secondly

based on the electromagnetic transient program PSCAD/EMTDC

the lightning protection simulation model of transmission line was established. The effect of the installation of inductive lightning rod and different parameters on the back flashover level was studied and reflected through the 3-D surface chart and the contour map. The simulation results show that the back flashover le

vel increases with the increase of L

0

. And in the case of a fixed L

0

there is an optimal value of C

0

that makes the highest level of back flashover（increased 40%）. Furthermore

the study results of the amplitude-frequency response analysis and the electromagnetic transient analysis of the chain equivalent circuit are consistent with the above results. Finally

combined the practical experiences

the sample is designed

and the characteristics of the material are put forward.