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Effect of static mechanical strain on the DC conductivity of extruded cross-linked polyethylene cable insulation

Effect of static mechanical strain on the DC conductivity of extruded cross-linked polyethylene cable insulation

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Sammendrag
DC current measurements were performed on a medium voltage XLPE cable at voltages from 8.5 to 65 kV (average field from 2.5 to 19 kV/mm). To assess the effect of mechanical strain on the conductivity of the insulation, the cable was wrapped around a tube with an outer diameter of 110 mm (max strain of 15.4%). Measurements of the currents through the compressed and tensioned sections were facilitated by using longitudinal guards in the insulation screen. No significant effect of the applied mechanical strain on the conductivity was found.
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • SINTEF Energi AS / Elkraftteknologi
År
2016
Forlag
SEE
Bok
Jicable'15 - 9th International Conference on Power Insulated Cables : proceedings
ISBN
978-2-912328-62-5