Experimental Study on Wind Noise Distribution Law of Transmission Lines

Abstract Aiming at the problem of wind noise generated by transmission lines under windy weather conditions, this paper selects three groups in Shandong Province, China. Through fixed-point measurement pressure conductor ground projection point side, phase sags as starting point, and outward extension 50 m endpoint, frequency spectrum curve characteristics line, predominant frequency, cut-off overall A sound level are analyzed. The results show that line is mainly concentrated range 500 - 2000 Hz, its around 650 which belongs to low-frequency noise. wire attenuates with increase distance from attenuation completed 50m, decreases 8 dB.