Effect of hydrophobic coating on the voltage distribution in a garland of insulators

Гидрофобные покрытия как одно из средств защиты наружной изоляции от перекрытий при загрязнениях стали применять еще в довоенное время, однако всестороннее исследование их свойств и широкое внедрение в практику начато только в шестидесятые годы. Наибольшее распространение эти покрытия находят на загрязняемых подстанциях, значительно реже они применяются на участках ВЛ, хотя и здесь намечается тенденция к расширению их использования.Hydrophobic coatings as a means of protection from external insulation slabs when pollution began to be used before the war, but a comprehensive study of their properties and abroad introduction to the practice only began in the sixties. The most widespread of these coatings are polluted on substations, much less they are used on overhead areas, although there is a tendency to increase their use. Application of hydrophobic insulators in areas of elevated atmospheric and chemical pollution power plants of Ukraine showed its effectiveness. However, the most promising direction is the use of solid hydrophobic coatings. Cover in the form of solid films is durable coatings and can be operated for extended periods. Atmosphericand chemical influence in conjunction with contamination cause oxidation reactions resulting in hardening of the coating and loss of the hydrophobic properties