Nowadays, electrical energy is presented as the best alternative to be used in the non-propulsive aeronautic applications compared to hydraulic and pneumatic energies. The increase of embedded power in the aircraft causes the development of DC network over AC one, keeping the actual power transmission cables that will be subjected to new constraints. The anticipation of electric conductivity within the cable insulating system becomes essential in order to predict the electric field distribution and prevent any electric breakdown within insulating materials. This article presents experimental characterisation of PI (polyimide, Kapton-FN) and PTFE (polytetrafluoroethylene), two polymers used as insulators in the actual aeronautic cables. Current measurements are performed for different electric fields and temperatures, and the current behaviour is analysed with the help of a conductivity law. We then discuss the conductivity law and its optimized parameters.

中文翻译：

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用于航空电缆的高性能聚合物的电流测量

如今，与液压和气动能源相比，电能被认为是用于非推进航空应用的最佳替代品。飞机内嵌功率的增加导致直流网络在交流网络上的发展，使实际的电力传输电缆将受到新的限制。为了预测电场分布并防止绝缘材料内的任何电击穿，电缆绝缘系统内的电导率预测变得至关重要。本文介绍了 PI（聚酰亚胺，Kapton-FN）和 PTFE（聚四氟乙烯）的实验表征，这两种聚合物在实际航空电缆中用作绝缘体。针对不同的电场和温度执行电流测量，并且在电导率定律的帮助下分析电流行为。然后我们讨论电导率定律及其优化参数。