The study of the pollution flashover mechanism has great significance to prevent external insulation accident and guarantee power system running steadily and safely.

• 研究合成绝缘子在污湿环境中的闪络机理对于防止架空线路外绝缘事故的发生、保证电力系统的安全稳定运行具有重要的科学意义和实用价值。