Based on the analysis and interpretation of maps, remote sensing data published in literature, environmental reconnaissance, this article discusses transformations Wojkowice area southern Poland (up to year 2020). A comprehensive was carried out concerning spatial development, mining activity, hydrogeological conditions biotic environment. The current state also characterized. Mining activity v...

The heating phenomenon of connector terminals in converter stations has become increasingly common, it a serious safety hazared affecting the operation UHV lines. This paper determined overlapping model Al plate-Al plate based on stations, conducted tests which included disassembly and assembly contact surface roughness impact test, pressing force electric composite grease anti-loosening measur...