Prediction on Noise of 220 kV Outdoor Substation to Environmental Infection

According to regulation and requirement of "Technical Guidelines of Noise Impact Assessment",plane layout of 220kV outdoor substation is hypothesized and predigested.Base on calculation formula recommended by "Technical Guidelines",this article predicts and analyzes value and change trend of noise in different heights and different distances at boundary of substation.This article integrates the result of noise measurement from check and acceptance of outdoor substations in Hu-bei province simultaneously,and studies the noise influence of 220kV outdoor substation on environment.