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Dielectric spectroscopy is a powerful tool in the investigation of dipolar and conduction in electrical insulating materials. In particular, the localisation of space charges at crystalline - amorphous interfaces in a semicrystalline polymer, such as low density polyethylene LDPE, provides on internal field which could be unfavourable to the insulating properties of the polymer. A physical displacement...
Partial discharge occurring at high voltage in ac electrical breakdown field measurements on insulating of medium voltage cables strongly reduces the breakdown field strength of material and conceals the intrinsic breakdown process. Electrical aging of high voltage insulators is the main factor that limits the reliability of the systems in which they are used. In the present paper we have made accelerated...
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