Modern outdoor insulation - concerns and challenges

Polymeric composite based on waste material for high voltage outdoor application

“…The dielectric strength and electrical field are a key properties of insulating material and they become the major factors that determine the failure of the insulation [1,2]. Insulation technology is still undergoing continuous development and improvement from time to time, from conventional ceramic type since the early 1900s, until the recent development of newly breed of insulation using polymeric composite materials [3].…”

“…Since polymeric composite insulation is accepted, a large number of studies and research activities for improvement on their performance had been made [3]. These include the development of new materials, the understanding of deterioration of chemical, electrical and mechanical over the stress, design and manufacturing process of material, and also development of practical testing, monitoring, reliability methods of measuring and service performance.…”

Arc endurance modeling of polymeric HV outdoor insulating materials

“…Many laboratory tests have been developed to evaluate this aspect. While all tests strive to obtain results in a reasonable time, it is not clear that the degradation mechanisms observed in these tests are consistent with what is seen in service [1][2][3].…”

Performance of RTV silicone rubber coatings installed in coastal systems

“…Many long-term applications have been reported worldwide, demonstrating the performance improvement achieved in comparison to their ceramic counterparts [1][2][3]. However there are applications where the substitution of ceramic insulators with composites is not technically or financially in profit for the electrical utility.…”