As to higher voltage rating polymer cables, electrical tree aging problem is more outstanding.

随着电网电压等级的提高，电缆的电树枝老化问题愈显突出。

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On the basis of experiment of electrical tree initiation, the effects of space charges on divergent fields are discussed.

最后根据树枝化击穿试验结果，分析讨论了空间电荷对发散电场的影响。

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At present, the electrical tree breaking process in the insulatic mate- rial is one of important subject of researches in the world.

电介质中的电枝击穿过程是当前国际上研究的重要课题。

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Besides its effect on bird populations, the snakes also take an economic toll on Guam by causing numerous power outages each year when they cross from tree into electrical lines, the FWS says.

CNN: Deadly mice to rain down on Guam snakes

There are still tree limbs pinning down electrical lines and broken telephone poles.

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In many areas local utility companies will even cut back your wayward tree branches free of charge if they sit too close to electrical lines.

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