In this paper, we estimated the insulation properties of cross-linked polyethylene (XLPE) for ultra-high voltage cable. we have studied the dielectric characteristics of XLPE due to frequency and temperature variation. The dielectric characteristics w...
In this paper, we estimated the insulation properties of cross-linked polyethylene (XLPE) for ultra-high voltage cable. we have studied the dielectric characteristics of XLPE due to frequency and temperature variation. The dielectric characteristics were measured in the temperature range from 25[℃] to l20[℃]. Also we measured in the voltage range of l[V] to 20[V] according to the step voltage application method. From FT-IR spectrum as an analysis of physical properties, a strong absorption in wavenumbers 700 to 730[cm^(-1)] 1456[cm^(-1)] and 2700 to 3000 [cm^(-1)] observed by the methyl group(CH₂). From the analysis of DSC. the crystalline melting points of the specimen observed in the temperature 60[℃] and 106.58[℃].