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In this paper, the change in partial discharge resistance of low density polyethylene and epoxy resin irradiated with γ-ray at high dose rate has been investigated. The samples were irradiated in air up to 100 kGy then up to 1000 kGy by means of a 60Co γ-source at a dose rate of 10 kGy/h. By applying an AC voltage of 8 kHz between a pair of needle-plane electrode, partial discharge was generated to...
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