College of Automation&Electrical Engineering Lanzhou Jiaotong University Lanzhou 730070 ChinaRail Transit Electrical Automation Engineering Laboratory of Gansu Province Lanzhou Jiaotong University Lanzhou 730070 China;
College of Automation&Electrical Engineering Lanzhou Jiaotong University Lanzhou 730070 ChinaRail Transit Electrical Automation Engineering Laboratory of Gansu Province Lanzhou Jiaotong University Lanzhou 730070 China;
Salty fog; composite insulators; flashover characteristics; COMSOL multiphysics; additional salt density;