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March 9, 2019 • ARTICLE ARCHIVE, Utility Practice & Experience
Pollution flashovers of insulator strings have historically been one of the main causes of line outages under normal operating conditions. Indeed, years ago this was a relatively common occurrence across many countries suffering from heavy industrial... Read More
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December 8, 2018 • ARTICLE ARCHIVE, Article of the week, Insulators
About 20 million composite line insulators are already in service on HVAC overhead lines all over the world. Moreover, the growth in market penetration of this technology seems exponential. The first installations were in Germany in 1967, predominantly in... Read More
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July 21, 2018 • ARTICLE ARCHIVE, Utility Practice & Experience
Ensuring a high level of availability in supply of electrical power has traditionally been accomplished through sufficient system redundancy as well as specification of only well-proven and sometimes over-dimensioned network components. Intensive manpower and... Read More
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November 19, 2016 • ARTICLE ARCHIVE, Utility Practice & Experience
Few factors influence performance and life expectancy of insulators more than the service conditions where they are installed. Knowing the levels of pollutants that deposit onto insulators during the course of the year is therefore the best way for power... Read More
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February 8, 2016 • ARTICLE ARCHIVE, Insulators
Failures of insulators due to pollution flashover can prove very costly, causing potentially long outages and requiring expensive and time-consuming maintenance. By most accounts, one of the leading causes of such failures is improper specification of... Read More
