Development of exposed environment of overhead transmission lines on mice

摘要

In order to study the responses that occur in mice chronically exposed to power frequency electromagnetic fields of transmission lines, an exposed environment was constructed in laboratory. Charge simulation method and Biot-Savart law have respectively been adopted to compute the three-dimensional electric and magnetic fields of the exposed environment. Both methods are programmed using the MATLAB software. Simulations indicate that the maximum intensity of electric field , found at the level of 4 centimeters above ground (the height of white mice), can reach up to 0.85 kilometer voltage per meter (kV/m) at ground level, and the magnetic flux density can amount to 58 milli-Gauss (mG). Compared with typical overhead transmission lines, the paper concluded that the exposed condition for mice exposed to has been approached effectively and closely.