<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>26106</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>558</pageFirst>
    <pageLast>566</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>19</volume>
    <type>article</type>
    <publisherName>Institute of Electrical and Electronics Engineers</publisherName>
    <publisherPlace>New York, NY</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Acoustic data of cross linked polyethylene (XLPE) and cured liquid silicone rubber (LSR) by means of ultrasonic and low frequency DMTA</title>
    <abstract language="eng">Partial discharges may cause damage to electrical insulation of high voltage equipment. They initiate elastic waves in the insulating material, e.g. in the stress cone of an outdoor termination. Localisation of the origin of such elastic waves can help to predict serious damaging processes in the electrical insulation. In order to measure and evaluate the wave propagation effects in typical multilayered elastomeric structures, knowledge of the material properties is required. The propagating velocity and the attenuation of longitudinal waves are important parameters. Values for these quantities found in the literature were not appropriate. Therefore, for cross-linked polyethylene (XLPE) and cured liquid silicone rubber (LSR), the longitudinal wave velocity and the attenuation were evaluated in the temperature interval from -20°C to 50°C and in the frequency range from 200 kHz to 600 kHz using a two-sample ultrasound technique. The loss factor was determined from these measured quantities. Additionally, low frequency Dynamic Mechanical Thermal Analysis (DMTA) was applied to investigate LSR and XLPE in a temperature interval between -100 and 50°C and to check qualitatively the ultrasound data.</abstract>
    <parentTitle language="eng">IEEE transactions on dielectrics and electrical insulation</parentTitle>
    <identifier type="old">28851</identifier>
    <identifier type="doi">10.1109/TDEI.2012.6180250</identifier>
    <identifier type="issn">1070-9878</identifier>
    <identifier type="issn">0018-9367</identifier>
    <identifier type="issn">1558-4135</identifier>
    <enrichment key="date_peer_review">28.06.2012</enrichment>
    <author>Uwe Buchholz</author>
    <author>Matthias Jaunich</author>
    <author>Wolfgang Stark</author>
    <author>Wolfgang Habel</author>
    <author>B.A.T. Petersson</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Acoustic propagation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cross linked polyethylene insulation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mechanical variables measurement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silicone rubber</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
</export-example>
