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Content Provider | IEEE Xplore Digital Library |
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Author | Banmongkol, C. Mori, T. Mizutani, T. Ishioka, M. Ishino, I. |
Copyright Year | 1997 |
Description | Author affiliation: Dept. of Electr. Eng., Nagoya Univ., Japan (Banmongkol, C.) |
Abstract | The effects of oxidation on electrical conduction and breakdown strength were studied in two kinds of LDPE films with different densities. Oxidation enhanced more the conduction current in the LDPE film with density of 0.9172 g/cm/sup 3/ (l-LDPE) than that with density of 0.9255 g/cm/sup 3/ (h-LDPE). This result was attributed to the easier carrier transport in unoxidized region of l-LDPE. Both oxidized specimens had almost the same impulse breakdown strength (F/sub Bimp/) except when the absorbance of C=O groups (A) is higher than 0.6. At 30/spl deg/C, it was considered that the increase in the number of injected electrons which initiate avalanche decreased F/sub Bimp/ for A<0.1, but the carrier scattering due to C=O groups increased F/sub Bimp/ for A>0.1. However, thermal or electromechanical breakdown mechanism would take part in the breakdown process at higher temperature's. The dc breakdown strength (F/sub Bdc/) decreased with oxidation and h-LDPE showed a higher one. These results suggested a contribution of thermal mechanism to the breakdown. |
Starting Page | 133 |
Ending Page | 136 |
File Size | 395173 |
Page Count | 4 |
File Format | |
ISBN | 0780338510 |
DOI | 10.1109/CEIDP.1997.634577 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1997-10-19 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Oxidation Electric breakdown Conductive films Current density Temperature Dielectrics and electrical insulation Power cables Polyethylene Surface morphology Road transportation |
Content Type | Text |
Resource Type | Article |
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