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1·XLPE cable; electrical treeing; boosting rate; tree morphology; fractal dimension.

交联聚乙烯电缆；电树枝化；升压速度；树枝形态；分形维。

2·Different mechanisms to inhibit water treeing were found for ethylene-acrylic acid(EAA)copolymer and sorbital.

乙烯-丙烯酸共聚物（EAA）和三梨糖醇在抑制聚乙烯的水树形成机理上有所不同。

3·The properties of water absorbing and water treeing in polyethylene and polyethylene modified samples were studied.

对聚乙烯及改性聚乙烯的吸水特性和水树形成规律进行了研究。

4·The diagnostic methods for aged insulation due to water treeing are briefly described from the point of view of practical application.

从实际应用角度出发，文章最后简要的介绍了由水树引起的绝缘老化的诊断方法。

5·The initiation voltage of short circuit treeing after the positive and the negative dc pre-stress increase by 26 8% and 36 3% respectively.

在正负极性直流预压短路树枝试验中，分别提高试样短路树枝起始电压2 6 8%和36 3%。

6·The result shows that the formation of water treeing in polyethylene modified samples were inhibited, although they have a high water absorbing capacity.

实验结果发现，尽管改性聚乙烯有较大的吸水率，但却可以抑制水树的形成。

7·Polyethylene (PE) has been modified by a small amount of mixing ethylene acrylic acid (EAA) copolymer. The water treeing in PE modified was also studied.

以不同含量的乙烯丙烯酸共聚物(EAA)对聚乙烯(PE)进行了共混改性，研究了改性后实验样品中水树的生长情况。

8·The test results with the needle-plane electrode system under ac voltage at 77 K indicate that the fatigue break in UHMW-PE under mechanical forces during the electrical treeing is a critical factor.

结果表明，机械应力下疲劳强度的劣化是低温电树枝化的重要因素。超高分子量聚乙烯具有低温性能好。

(1)fault tree故障树；失效树

(1)christmas tree圣诞树

(1)decision tree决策树，决策图表

(1)fault tree analysis故障树分析法

(1)in the tree在树上（外来物）

(1)on the tree在树上（原生物）