带电导线覆冰及电场对导线覆冰的影响

分析了电场极性、电场强度对导线覆冰的影响。试验结果表明，电场对导线覆冰产生的影响与电场强度有关，当电场强度＜５ｋＶ／ｃｍ时，电场的作用加速导线覆冰；当电场强度＞１０ｋＶ／ｃｍ时，电场的作用削弱了导线覆冰。

Energized Conductor Icing and Effect of Electric Field

This paper analyzes the effect of the field stressand polarity on conductor's icing. The experimental resultshows that the effect of the field on conductor's icing varieswith the electric stress.There is a critical field stress forthe conductor's icing. When the electric field is lower than 5kV/cm, the ice amount accreted on a conductor and ice density increases with the increase of the field. When electricfield is higher than 10 kV/cm, they decrease with the increase of the electric stress. Moreover, The ice accreted athigh negative elctric stress is much less than the one at positive electric field.