Properties of dielectric materials; insulations and applications; constructions and performances of high voltage equipment; test of insulating materials and high voltage equipments; partial discharge measurement; capacitance and dielectric losses measurement; design and layout of high voltage systems; effects of high voltage electromagnetic fields on public health; fundamental of kinetic gas theory; element process in plasma; charge carrier generation; ignite from gas discharge; analysis of electric field stress of impact to system by numerical method, charge simulation method, surface charge method, and boundary element method