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The Insulators Business Unit at Hubbell Power Systems, Inc. strives to provide innovative solutions to the changing needs of our customers. In our effort to provide a complete line of products that deliver strength and quality, we are excited to announce the development and launch of our new product, the MITY-Lite® Line Post Insulator. The MITY-Lite joins the already existing 69kV Veri*Lite™ Line Post product line that our customers are familiar with and depend on. 

In physics, the glow and audible event occurring when an insulator is exposed to excessive voltages is called a corona. It may also be known in the electric industry as “corona discharge,” “plume discharge,” “brush discharge” or “glow discharge.”

To support design and development activities, we maintain a fully equipped electrical and mechanical test facility with the capability of performing virtually all of the industry required tests, including ANSI, IEC and CSA. 

Toughened glass bell insulators are easily identified through the application of color bands on the caps, signifying the most common strength class products. 

When designing a high voltage transmission line utilizing toughened glass bell insulators, engineers must consider whether or not to specify a zinc sleeve to accompany the insulator pins. Although the upfront cost is slightly more than the forged steel pin, those who are new to the use of toughened glass bells may ask what justifies a slightly higher expense for the addition of this feature.