The following paper shows a clear correlation between the measured tracking index and the breakdown field strength for noncoated glass fibre reinforced polymers (GFRP) with either a polyester or an epoxy based resin. 17 types of specimens have been tested according to IEC Publication 60587. The breakdown field strength of specimens cut from similar samples is determined by a new method capable of estimating the stressed volume. The results from the two tests are finally compared and incorporated in a single analytical formula. All test specimens are supplied by Danish manufacturers of wind turbine blades and are made under similar conditions and with the same materials and additives as used in the blade manufacture.
|Title of host publication||Proceedings of the IEEE International Symposium on Electrical Insulation|
|Publication status||Published - 2006|
|Event||2006 IEEE International Symposium on Electrical Insulation - Toronto, Canada|
Duration: 11 Jun 2006 → 14 Jun 2006
|Conference||2006 IEEE International Symposium on Electrical Insulation|
|Period||11/06/2006 → 14/06/2006|