RTV-Coated Insulators
To simulate the field pollutant for laboratory tests, a mixture of 600 g of kaolin, 200 g of CaSO4 , and 5 g of NaCl (commonsalt) per liter of water was made and applied to various types of insulators for cleanfog flashover tests. For these tests, the contaminant layer was applied to the top, bottom, or entire surface of the insulators [10]. These results showed that when the entire surface of the insulator was coated, the flashover voltage was the highest, whereas coating only the bottom surface resulted in only a slight reduction in the flashover, as illustrated in Figure 2. Suetal. [11] indicated that RTV-coated insulators could operate longer than 6 years without preventive maintenance in sub-tropical climates. However, in another study reported by Suetal.
RTV-Coated InsulatorsTo simulate the field pollutant for laboratory tests, a mixture of 600 g of kaolin, 200 g of CaSO4 , and 5 g of NaCl (commonsalt) per liter of water was made and applied to various types of insulators for cleanfog flashover tests. For these tests, the contaminant layer was applied to the top, bottom, or entire surface of the insulators [10]. These results showed that when the entire surface of the insulator was coated, the flashover voltage was the highest, whereas coating only the bottom surface resulted in only a slight reduction in the flashover, as illustrated in Figure 2. Suetal. [11] indicated that RTV-coated insulators could operate longer than 6 years without preventive maintenance in sub-tropical climates. However, in another study reported by Suetal.
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