The harshness of the submarine environment represents a serious threat for immersed high voltage power cables, extensively used offshore wind farms, which in turn are supposed to last at least 20 years their total investment be economically viable. Crosslinked Polyethylene (XLPE) insulating layer cables may suffer different degradation phenomena, leading unexpected breakdowns and rises costs. I...

The thermal aging of two electrical cable insulations made cross-linked low density polyethylene (XLPE) only differing by their stabilization system was studied in air between 125 and 200°C. chemical consumption the types antioxidants (phenol sulfide), build-up oxidation products consequences on mechanical properties were respectively determined measurement induction time (OIT), Fourier transfo...

Power substations in an urban area are interconnected by high voltage underground power cables, resulting also in interconnections of their earthing grids through cable metallic screens/sheaths. Most modern power cables with XLPE insulated core have metallic screens which are practically insulated from ground. These screens can only be (and usually are) grounded at cable ends and therefore do n...