Measurements of EMF Emission of High-Voltage Power Systems

There is no doubt that energized power transmission lines and power transformers are sources of electro-magnetic field (EMF) (EMF). This EMF varies by equipment depending on the level of voltage and the current-carrying capacity. Some studies claim a relationship between EMF and leukaemia, but no strong evidence has yet appeared. Organisations such as The Electric Power Research Institute, Inc., and the International Commission on Non-Ionizing Radiation Protection set limits on the maximum allowable safe exposure of EMF to the human body. The aim of the present study is to measure the EMF associated with energized power transmission lines and power transformers to determine whether these measurements exceed the set limits. Unfortunately, the results show that inhabitants in the vicinity of the investigated 380 kV power transmission line would be under the effect of the electric field effect. Moreover, the high-voltage substations examined in the study display magnetic fields that exceed the limit.