Towards Aging Mechanisms Of Cross-Linked Polyethylene (Xlpe) Cable Insulation Materials In Nuclear Power Plants
2016 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (IEEE CEIDP)（2016）
摘要
Cross-linked polyethylene (XLPE) cable insulation material undergoes simultaneous, accelerated thermal and Drain wire Grey XLPE Insulator gamma-radiation aging to simulate the long-term aging environment within nuclear power plants (NPPs). A variety of materials characterization tests, including scanning electron microscopy, thermo-gravimetric analysis, differential scanning calorimetry, oxidation induction time, gel-fraction and dielectric White XLPE insulator properties measurement, are conducted on pristine and differently aged XLPE samples. A preliminary model of one possible aging Conductor mechanism of XLPE cable insulation material under gamma radiation at elevated temperature of 115 degrees C is suggested.
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关键词
cross-linked polyethylene cable insulation materials,XLPE cable insulation materials,nuclear power plants,accelerated thermal aging,gamma-radiation aging,long-term aging environment,NPP,materials characterization tests,scanning electron microscopy,thermogravimetric analysis,differential scanning calorimetry,oxidation induction time,gel-fraction,dielectric properties measurement,temperature 115 degC
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