Summary
Recently, several insulators have failed during operation which triggered inspections for condition assessment of the installed insulator strings. During these inspections, several insulators in different insulator arrangements and voltage levels, have been found with hotspots.
Read more Read lessAfter removal of defect insulators testing has been performed on both damaged and reference insulators. The results from all these tests show that there is a gap between the newly revised
IEC standards regarding overhead line composite insulators and service experience. Thus, is there still a need for improvement of the newly revised standards.
This paper will go through the inspections and all the after service testing that have been made.
It will give recommendations on how to improve composite insulator specifications to avoid common quality issues on batch level and recommendations for improvement of related IEC standards.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B2_11371_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Sweden |
| Study committees | |
| File size | 1 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
SIDENVALL Peter - I2G; LUNDENGÅRD Johan - I2G; RASMUSSEN Lars - Energinet Denmark; LYKKE PEDERSEN Mads - Energinet Denmark; ØRSKOV DIECKMANN PEDERSEN Martin - Energinet Denmark; ROSBORG LAGONI Nicolaj - Energinet Denmark
