DIAGNOSTIKA `18 - International Conference on Diagnostics in Electrical Engineering (Diagnostika) CDEE 2018 is a traditional scientific conference held by the Faculty of Electrical Engineering, University of West Bohemia in Pilsen. The purpose of this biennial conference organized since 1993 is to share the latest events and developments in the field of diagnostics. This year´s event will be the thirteens meeting of scientists and experts involved in electrical engineering diagnostics. As usual, everyone interested in electrical engineering, structure of materials, their features and applications in electrical systems will have an opportunity for the professional exchange of knowledge and research results.