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It is necessary for electrical insulation diagnosis to obtain information about the electric field distribution and the space charge distribution in insulation materials. We have investigated the measurement of nonuniform electric field vector distributions in liquid dielectrics using an original method based on electrooptic Kerr effect and CT method. We carried out the time series measurement of...
Physical properties on the surface have a close connection with adhesive strength, water -resistance, abrasion-resistance and so on. The properties are greatly influenced by the surface characteristics than the bulk one. In polymer materials, such as polyethylene (PE) and polypropylene (PP) widely used as an insulating material and a dielectric material, it is thought that the surface characteristics...
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