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Thermal plastic material polypropylene (PP) has been considered as a promising candidate for recyclable insulation of power cable. However, the stiffness of PP is higher than that of XLPE which makes it difficult to be used directly as cable insulation. In this work, two kinds of elastomers, i.e. polyolefin elastomer (POE) and propylene-based elastomer (PBE), have been added into isotactic polypropylene...
Polyethylene terephthalate (PET) has been used in a wide range of applications as insulating material in electrical equipment which possibly operate in radioactive environment such as nuclear power plant, spacecraft and scientific facilities. The PET used in such an environment is exposed to a great risk of high radiation induced ageing that gives rise to the deterioration of its insulation property...
Surface potential decay on electron beam irradiated epoxy based nanocomposites has been investigated in this paper. The 2 mm-thick laminate composites sample was irradiated with the electron beam at an average energy of 7.5 MeV, and the total accumulated dose was up to 500 kGy. After the irradiation, the nanocomposites were corona charged with DC voltage at 10 kV through a pair of needle to plate...
XLPE films were employed as test samples to investigate the effect of cross-linking temperature on space charge decay behavior. The samples were cross-linked with temperature ranged from 150°C to 180°C in thickness of 200 μm. Corona charging method was employed to introduce charges on sample surface, after which open-circuit decay test was carried out at 35°C with relative humidity of ~ 45%. Surface...
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