Previous works have shown that the accumulation of space charges in insulation systems of power equipment alters the operating electric field distributions, which in turn may accelerate material degradation and eventually yield premature failures. Moreover, as the injection and extraction of charges from electrodes and their migration are affected by temperature, it is, therefore, predicted that the space charge behavior under temperature gradient conditions will essentially differ from that under isothermal condition. It is, thus, crucial to increase our understanding of space charge behavior in polymeric materials of general use under such conditions and this article presents such attempts.

中文翻译：

---

聚合物材料在温度梯度下的空间电荷行为

先前的工作表明，电力设备绝缘系统中空间电荷的积累会改变工作电场分布，进而可能加速材料降解并最终导致过早失效。此外，由于电荷从电极的注入和提取及其迁移受温度的影响，因此预计温度梯度条件下的空间电荷行为将与等温条件下的空间电荷行为有本质上的不同。因此，提高我们对在这种条件下通用聚合物材料的空间电荷行为的理解至关重要，本文提出了此类尝试。