6IEEE Corona and Field Effects Subcommittee Report Radio Noise Working Group.A Survey of Methods for CalculatingTransmissionLineConductorSurface Voltage Gradients,IEEE Transactions on Power Apparatus and Systems[R].Vol.PAS-98,No.6,Nov./Dec,1979.
7CISPR Publication 18 -3.Amendent 1,Radio Interference Characteristics of Overhead Power Lines and Highvoltage Equipment,Part 3:Code of Practice for Minimizing the Generation of Radio Noise[S].1996.