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发明公开
CN101783491A 降低输电线路局部场强的方法 无效 - 撤回

降低输电线路局部场强的方法
摘要：
本发明涉及一种降低输电线路局部场强的方法，在所述输电线路下方架设一条或多条与输电线路平行的屏蔽线；所述屏蔽线两端接地。所述相邻屏蔽线的间距为2-5m；所述屏蔽线和输电线之间的水平距离为7-15m。采用模拟电荷法，计算输电线路下方未畸变时的电场强度、有民房时的三维电场强度和架设屏蔽线后的电场强度；通过对不同屏蔽线架设方式下电场强度的计算，得出相应的架设方式，实现降低输电线路局部场强的方法。本发明具有较高准确性，可应用于今后高压输电线路降低局部电场强度。
摘要（英）：

The invention relates to a method for reducing the local field strength of an electric transmission line. One or more shielding lines are erected on the lower part of the electric transmission line; and both ends of each shielding line are grounded. The distance between adjacent shielding lines is between 2 and 5 meters; and the horizontal distance between the shielding lines and the electric transmission line is between 7 and 15 meters. A charge simulation method is adopted to calculate the electrical field strength when the lower part of the electric transmission line is not distorted, the three-dimensional electrical field strength when civilian buildings exist and the electrical field strength after the shielding lines are erected; and by calculating the electrical field strengths of different erecting modes of the shielding lines, corresponding erecting modes are obtained and the method for reducing the local field strength of the electric transmission line is realized. The method has higher accuracy and can be used for reducing the local electrical field strength of the high-voltage electric transmission line in future.

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