The Impact of Films on the Long-Term Behavior of Stationary Electrical Connections and Contacts in Electric Power Systems : 9783959080378 : 12 Feb 2016 : Stationary electrical connections and contacts, such as power connections, are commonly applied in electric power systems used for generation, transmission and distribution of electric energy. Several different degradation mechanisms can increase the contact resistance and might therefore reduce the power connection's lifetime. The degradation by film development is often considered as a reason for contact failure. In this research work, the impact of film development produced by chemical reactions, such as oxidation, on the long-term behavior of stationary electrical connections and contacts was studied with crossed rods. Typical material systems for electric power systems were considered in this study: Cu-ETP bare, silver-, nickel- or tin-coated, Al99.5 and AlMgSi0.5. The initial contact resistance and the plastic deformed area of