State of the MV power cables insulation in dependence on the network operation conditions
[ 1 ] Instytut Elektroenergetyki, Wydział Elektryczny, Politechnika Poznańska | [ P ] employee
2016
paper
english
- MV power cables
- degradation of the cable insulations
- influence of overvoltage
EN Tests of several dozen sections of MV cables with extruded insulation, maintained in real conditions, confirmed that the process of degradation of polyethylene cable insulation depends on where the cable is placed in the MV power network. Measurements of thermal properties and resistance to partial discharges, and assessment of molecular molar mass of particular insulation layers were conducted, with the samples of insulation obtained from real cables.
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