We investigated the space charge accumulation characteristics under a DC high electric field including a polarity reversal in double-layered samples in which LDPE (or modified LDPE) and EPR were laminated simulating a joint of DC power transmission cable. It was found that a large amount of space charge accumulated at the interface between LDPE and EPR while it was not observed at the interface between the modified LDPE and EPR.
J-STAGEがリニューアルされました! https://www.jstage.jst.go.jp/browse/-char/ja/