环境友好型直流电缆料聚丙烯绝缘的电树枝研究进展
朱乐为,杜伯学

Research Status on Electrical Tree of Polymer Insulation Materials in HVDC Cables
Zhu Lewei,Du Boxue
图4 不同直流幅值与+25kV脉冲电压相复合时的电树枝长度与生长时间关系图[24]
Fig.4 Relationship between the tree length and the treeing time of different DC amplitudes and +25kV pulse combined voltages[24]