CIGRE/IEEE Survey on Extra High Voltage Transmission Line Radio Noise

A worldwide survey on transmission line radio noise was conducted by a joint CIGRE and IEEE task force with contributions from a large number of American n and overseas utility companies. The results from this survey--line geometries, conductor surface gradients, ts, and radio noise values in different weather conditions, as well as lateral radio noise profiles and noise frequency spectra--are presented. This collection ion of directly comparable radio noise field data from 75 lines with voltages ranging from 220 to 765 kV is expected to provide a practical reference for future line design and a valuable check for radio noise e-prediction methods.