IEEE International Conference on Dielectric Liquids (ICDL) is a research oriented conference focused on the exchange and discussion of ideas, results and practical experiences of properties, dielectric phenomena and applications of insulating liquids. It addresses physicists, chemists, material scientists and electrical engineers who are engaged in the research and practical applications of such materials and apparatus. ICDL provides a forum for presenting innovative ideas and applications such as the use of natural and synthetic esters in power transformers, SF6 alternative gasses having much less greenhouse impact and electrodynamics in emerging applications. This Conference is the 20th in a series held every two years, and is fully sponsored by the IEEE Dielectrics and Electrical Insulation Society (DEIS).