Nowadays, the usage of RTV Silicone Rubber as Insulator coatings are increased due to its advantages to avoid pollution flashover of contaminated insulator. Besides, the coatings can reduce the maintenance cost and scheduled routine. This paper had introduced the advantage of RTV Silicone Rubber coatings on insulator, such as good adhesion, nominal thickness range and good hydrophobicity. There are three method of coatings application, such as brushing, spraying and dipping. Suitable method is used to specific insulator application. Meanwhile, this paper also explained about installation of coated insulator in the field.
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