Title :
The effect of cable oil diffusion on the electrical conductivity of EPDM compounds
Author :
Garcia-Ramirez, R. ; Sundhararajan, S.
Author_Institution :
3M Electr. Products Div., Austin, TX, USA
Abstract :
This work examines the effects of diffusing cable oil on the electrical behavior of elastomeric compounds based on EPDM, as used in semiconductive elements in accessories for application on paper-insulated lead-covered (PILC) cables. The behavior of volume resistivity is monitored as a function of the amount of cable oil diffused into the material. Resistivities up to the typical insulator range (~1013 Ω-cm) are observed as a consequence of swelling due to the presence of the diffused oil. The measured volume resistivities of the oil-impregnated compound are then compared to predictions from the theory of electron transport in conductor-filled polymers
Keywords :
diffusion; electrical conductivity; ethylene-propylene rubber; insulating oils; organic insulating materials; power cable insulation; swelling; 1E13 ohmcm; EPDM compounds; PILC cables; cable oil diffusion; elastomeric compounds; electrical conductivity; electron transport theory; paper-insulated lead-covered cables; semiconductive elements; swelling; volume resistivity; Conducting materials; Conductivity; Electrons; Lead compounds; Monitoring; Oil filled cables; Oil insulation; Petroleum; Semiconductor materials; Volume measurement;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location :
Millbrae, CA
Print_ISBN :
0-7803-3580-5
DOI :
10.1109/CEIDP.1996.564510
