NDLI: Water tree retardation and electrical properties of EVA blended XLPE

Content Provider	IEEE Xplore Digital Library
Author	Jun-Ho Lee Suh, K.S. Sang-Joon Kim Dong-Won Jeong Min-Koo Han
Copyright Year	1992
Description	Author affiliation: Dept. of Electr. Eng., Seoul Nat. Univ., South Korea (Jun-Ho Lee)
Abstract	The water tree retardation effect of EVA (ethylene vinyl acetate) blended XLPE (cross-linked polyethylene) was investigated. In addition to water tree tests such electrical properties as dissipation factor and AC breakdown strength and such mechanical properties as Young's modulus and toughness were also studied, because the performance of insulating materials cannot be estimated only on the basis of water tree retardation. It is shown that, in the case of XLPE blended with EVA, water treeing can be retarded considerably and toughness corresponding to the stress-crack resistance improved with increasing VA content, while the dissipation factor which depends on the concentration of permanent dipoles increases. No marked change of AC breakdown strength with increasing the VA content was observed. It is concluded that the growth of water tree is strongly influenced by the mechanical properties, and improvement of stress-crack resistance may be a possible way to reduce water treeing.<>
Starting Page	451
Ending Page	455
File Size	144295
Page Count	5
File Format	PDF
ISBN	0780301293
DOI	10.1109/ICSD.1992.225009
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-06-22
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Trees - insulation Dielectrics and electrical insulation Additives Materials testing Polymers Mechanical factors Electric breakdown Electrodes Partial discharge measurement Electric variables measurement
Content Type	Text
Resource Type	Article

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