The utility model has the advantages that: the outer plastic sleeve ensures insulation and electricalstrength between conductive portion and tub wall;
本实用新型有益的效果是：外层塑料套保证了导电部分与管壁间的绝缘及电气强度；
2
Based on that, a comparison experiment is performed to study the kinetic processes of trap creation in solid organic dielectrics under strong electricalstrength.
在此基础上提出一种比较实验法，研究强电场作用下介质中产生新陷阱的动力学过程。
3
With the increase of oil length, water absorption of the film reduces, while electricalstrength increases, but water-dispersible was bad, the ideal oil length was 37%;