The contamination deposition characteristics of insulators can be used in the development of antifouling work. Using COMSOL software. numerical simulations on the pollution-deposited performance of a porcelain three-umbrella insulator and porcelain bell jar insulator in a wind tunnel were conducted. and the simulated results were compared with the tested results. https://www.roneverhart.com/KNIPEX-7-1-4-in-88-01-180-Alligator-Water-Pump-Pliers/