In this article the summary of measurement and calculation values of low
frequency electric field radiation around the high-voltage transmission
lines and impact of the increased voltage values on the AC corona onset
voltage gradient are presented. The measurements of the low frequency
electric field radiation level were performed under the 400 kV transmission
lines of horizontal configuration with standard and compact dimensions. In
all cases analyzed in this article, the measurements are performed in the
middle of the span, because at this point the conductors are closest to the
ground. The analysis in this article has been initiated by the increased
voltage values of long duration that have been registered in nodes of the
400 kV network in Bosnia and Herzegovina and the neighbouring countries
during the last years. The calculation of the low frequency electric field
radiation of the different configuration of the high-voltage transmission
lines will be useful for determining the non-ionization radiation exposure
levels of the general public in the future as well as to determine their
impact on the AC corona onset voltage gradient.
Evaluation of Extremely Low Frequency Magnetic Fields emission Level from High Voltage Transmission Lines