Fig. 1. Experimental platform and its output voltage

Fig. 2. Experimental electrodes

Fig. 3. Influence of the electrodes thickness and the interspace on the field distribution and the flashover performance电极厚度和气隙对层叠结构电场和闪络性能影响（图（a）中虚线表示电极的边缘，横坐标表示与电极边缘的相对位置）

Fig. 4. Influence of the silicon coating on the flashover performance硅橡胶涂层对层叠结构沿面闪络性能的影响

Fig. 5. Flashover performance comparison of air and SF₆ under inhomogeneous field 极不均匀场中空气和SF6气体绝缘性能对比

Fig. 6. Flashover voltage under different pressures不同气压下的沿面闪络性能

Fig. 7. Influence of the number of the dielectric layers介质层数对沿面闪络性能的影响

Fig. 8. Influence of the stretched length of the dielectrics介质伸出长度对介质表面电场分布与沿面闪络性能的影响（图（a）中箭头表示介质边缘的电场）

Fig. 9. Relationship between time and drift distance

Fig. 10. Critical length and its corresponding voltage under different K