Part A - EIA 400 kV OHTL Stp - мепсо а.д.

Environmental Impact Assessment Study for 400 kV OHL SS Stip – Macedonian-Serbian BorderThe noise from the corona effect is directly dependant on certain physical parameters of theenvironment, particularly the presence of forest belts, morphology of the terrain, etc.Because the energy losses are non-economic, and the noise is undesirable, the coronaeffect in the transmissions lines has been explored in detail in the recent decades.Consequently, the corona effect is entirely known, and when designing the transmissionlines, measures for its minimization are implemented, particularly for high-voltagetransmission lines with voltage levels above 300 kV.The proper choice of conductor sizes for the transmission line will reduce the localizedelectric blast on the air on the surface of the conductor, and will further reduce the surfacegradient on the same level that would cause very small and negligible corona activity.111