Title :
Electrical properties of EPR cable models aged under thermal and electrothermal stresses
Author :
Motori, Antonio ; Montanari, Gian Carlo
Author_Institution :
Bologna Univ., Italy
Abstract :
The dc and ac electrical behavior of ethylene-propylene rubber (EPR) cable models, aged under different thermal and electrothermal stresses, is investigated as a function of aging time. Remarkable changes of dc conductivity and low-frequency dielectric losses with aging conditions are pointed out. A transition in the electrical behavior of the insulation can be envisaged above 120°C
Keywords :
ageing; dielectric losses; electrical conductivity; ethylene-propylene rubber; power cable insulation; thermal stresses; 120 C; EPR cable insulation; ageing; conductivity; dielectric loss; electrical properties; electrothermal stress; ethylene-propylene rubber; thermal stress; Aging; Conducting materials; Conductivity; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Dielectrics and electrical insulation; Electrothermal effects; Paramagnetic resonance; Thermal stresses;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1998. ICSD '98. Proceedings of the 1998 IEEE 6th International Conference on
Conference_Location :
Vasteras
Print_ISBN :
0-7803-4237-2
DOI :
10.1109/ICSD.1998.709259
