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Breakdown and space charge of LDPE films prepared using metallocene catalyst

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5 Author(s)
Mori, Tatsuo ; Dept. of Electr. Eng., Nagoya Univ., Japan ; Ishii, R. ; Banmongkol, C. ; Mizutani, T.
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Polyethylene (PE) has been widely used as electrical insulation for power cables because of its excellent electrical and mechanical properties. Low density PE (LDPE) prepared using a high pressure process has been widely used as insulating polymer of power cables. In this paper, the authors have investigated the performance of new LDPE prepared using metallocene catalyst (m-LDPE) as electrical insulating material. m-LDPE has narrower composition and molecular-weight distributions than LDPE. High-field electrical properties of m-LDPE at 90°C were compared with those of the other LDPEs. In addition, the prestress effect and the effect of space charge on breakdown strength were discussed

Published in:

Conduction and Breakdown in Solid Dielectrics, 1998. ICSD '98. Proceedings of the 1998 IEEE 6th International Conference on

Date of Conference:

22-25 Jun 1998