NDLI: Influence of high DC electrical fields on some aging properties of XLPE

Content Provider	IEEE Xplore Digital Library
Author	Crine, J.-P.
Copyright Year	2000
Description	Author affiliation: Technol. Consultant, Brossard, Que., Canada (Crine, J.-P.)
Abstract	The influence of high DC electrical fields (above 40 kV/mm) on some electrical properties and on the morphology of polyethylene (PE) is discussed from published experimental data. As it is well known, the polarization currents obtained under such fields are controlled by space charges. It is then possible to deduce the electrons mobility and concentration as a function of field. We show that the charge concentration thus calculated is in excellent agreement with space charge measurements performed with a modern and sophisticated equipment. The same calculation shows that the significance of the so-called thresholds fields is, at best, debatable. Old polarization measurements predicting recent observations of very strong charge injection are also briefly discussed. IR and positron spectroscopy measurements as well as capacitance measurements tend to suggest that the polymer morphology is modified by high fields. The possible relation with the submicrocavity formation proposed in our aging model is discussed.
Starting Page	101
Ending Page	104
File Size	319415
Page Count	4
File Format	PDF
ISBN	0780359313
ISSN	1089084X
DOI	10.1109/ELINSL.2000.845456
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-04-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Aging Morphology Polarization Space charge Current measurement Charge measurement Capacitance measurement Polyethylene Electron mobility Performance evaluation
Content Type	Text
Resource Type	Article

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