S. F. Madsen, J. Holboell, M. Henriksen, J. Assentoft, Ørsted·DTU, Electric Power Engineering (Denmarks Technical University)
Published:
19th Nordic Insulation Symposium. June 13-15, 2005, Trondheim Norway. Norwegian University of Science and Technology. Department og Electrical Power Engineering. Trondheim. Nord-IS 05 & Tapir Academic Press 2005.
Abstract
The following paper shows possible correlations between results obtained by tracking tests and breakdown field strengths for non coated Glass Fibre Reinforced Polymers (GFRP) with either a polyester or an epoxy based resin.
15 specimens have been tested according to IEC Publication 60587 The breakdown field strength of specimens cut from similar samples is then determined by a new method capable of estimating the stressed volume.
The two values are finally compared and sought incorporated in an analytical formula. All test specimens are supplied by Danish manufacturers of wind turbine blades.
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