What Is The Service Life Of Composite Insulators

What Is The Service Life Of Composite Insulators
The glass insulator has the characteristics of no worth self-detonation. The first reason for self-detonation is the pollutants as well as blemishes in the glass throughout the manufacturing procedure. If the contaminations, as well as nodules, are dispersed in the inner tension layer, several of them will certainly take off within an amount of time after the product is made. Consequently, the production device should keep the item for a period of time after manufacturing in order to discover the potential top quality troubles in manufacturing. If pollutants are dispersed in the external compression layer, after running on the power line for a period of time, it may trigger the glass insulation to explode under the strong cold and hot temperature distinction and also electromechanical lots.
In addition, throughout the operation, the partial discharge will occur under the action of power-frequency voltage when the dirt layer on the surface of the glass insulator is damped. The long-lasting heating caused by partial discharge will certainly create the insulation of the glass to drop as well as trigger no worth self-explosion. So glass insulators running in greatly polluted locations have an enhanced rate of self-detonation. Nevertheless, the self-detonation price of glass insulators is various from the deterioration rate of porcelain insulators as well as the aging rate of natural composite insulators. The self-detonation rate of glass insulators comes from early exposure, and reduces year by year with the extension of the operation time, while the damage rate of porcelain insulators belongs to late exposure. With the expansion of time, the destruction price of glass insulators will gradually boost under the combined electromechanical lots. Because of the aging features of organic products, the aging rate, as well as damage rate of composite insulators, will enhance with time. It is typically believed that the aging life of glass insulators and also porcelain insulators abroad has to do with 50 years, while the aging life of composite insulators is no more than 25 years.

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