Electrical and mechanical properties of service-aged medium voltage porcelain support insulatorsKiitam, Ivar; Saarna, Mart; Taklaja, Paul; Tealane, Marko; Palu, Ivo2020 6th IEEE International Energy Conference (ENERGYCon)2020 / p. 702-706 https://doi.org/10.1109/ENERGYCon48941.2020.9236596