Abstract
Based on the characteristic of electromagnetic field around the EHV transmission line, this paper discusses the effect of electromagnetic environment of the EHV transmission line by analyzing power frequency electric field, magnetic field, radio interference and audio noises. Then this paper studies the lasting effect and transient electric breakdown effect by power frequency electric field to zoology, corona discharge to radio interference, power frequency magnetic field and audio noises to nearby environment. At last, example some limits rule and propose the steps to minish its effect to the environment by analyzing the transmission line electric field distribution rule and its affected factors.
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