AC Electric Field EF
AC Electric Fields are generated by the presence of AC voltage (potential difference to ground). The higher the voltage, the stronger is the field. When there is a voltage in a wire, there is an electric field which could span 2-3 m from the source.
In case of high voltage power lines, the AC electric fields could span up to 100 m. The good news is that it dies out with the square of the distance from the source.
AC electric field lines are attracted to ground potential and to any conductor in their path such as the human body.
AC electric fields frequency range from 5Hz to 400kHz. Low-frequency measuring devices display the AC electric field in V/m.