Glass electric insulator

Glass electric insulator is an insulator for a power transmission line made of annealed or toughened (tempered) glass.

Toughened glass of glass electric insulator:
The toughening process consists in inducing prestresses to the glass shell by a rapid and precisely controlled cooling of the still hot molded glass. The pre-stresses result in compressive forces on the outer surface layer balanced by tensile forces inside the body of the glass shell. The presence of permanent outer surface compressive stresses prevents crack formation or propagation in the glass shell for an unlimited period of time (no ageing). The combination of compressive and tensile stresses in the glass shell body gives toughened glass insulators the unique property of always breaking in a predictable pattern when overstressed mechanically or electrically. Crumbling of the glass shell always results in small corn-size chunks with no razor–edged shards.

Glass electric insulator has many outstanding advantages than porcelain insulators and silicone rubber insulators, and you can get more information about Glass electric insulator on our website.

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