CAJ | 학술논문

采用改进水针法对XLPE电缆进行加速水树老化试验，并对老化后的切片样本形貌进行了光学显微镜及扫描电镜(SEM)观测。结果表明：改进后的水针法能有效的在针尖电极附近生成水树缺陷，水树区域尺寸可达数百微米，缺陷内部树枝通道的截面直径尺寸为微米级。
채용개진수침법대XLPE전람진행가속수수노화시험，병대노화후적절편양본형모진행료광학현미경급소묘전경(SEM)관측。결과표명：개진후적수침법능유효적재침첨전겁부근생성수수결함，수수구역척촌가체수백미미，결함내부수지통도적절면직경척촌위미미급。
XLPE cables were accelerated aged by an improved water-needle method, and the micro-mor-phology of the accelerated aged samples were observed by optical microscope and scanning electron mi-croscope(SEM). The results show that the improved water-needle method can effectively generate water-tree defects near the needle tips in XLPE cables. The size of the water-tree defect can attain hun-dreds of microns, and the size of the tree channel in the defects is at micron grade.