Direct relationship between breakdown strength and tracking index of composites

Søren Find Madsen, Mogens Henriksen, Joachim Holbøll

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    Abstract

    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.
    Original languageEnglish
    Title of host publicationProceedings of the IEEE International Symposium on Electrical Insulation
    PublisherIEEE
    Publication date2006
    ISBN (Print)1-4244-0333-2
    DOIs
    Publication statusPublished - 2006
    Event2006 IEEE International Symposium on Electrical Insulation - Toronto, Canada
    Duration: 11 Jun 200614 Jun 2006
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=11047

    Conference

    Conference2006 IEEE International Symposium on Electrical Insulation
    Country/TerritoryCanada
    CityToronto
    Period11/06/200614/06/2006
    Internet address

    Bibliographical note

    Copyright: 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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