Influence of morphology and thermal stability on tree initiation in polyethylene films

Author

Yan, Ping ; Zhou, Yuanxiang ; Sun, Guansheng ; Yoshimura, Noboru

Author_Institution

Inst. of Electr. Eng., Acad. Sinica, Beijing, China

fYear

2001

fDate

2001

Firstpage

249

Lastpage

252

Abstract

Electrical treeing can cause fatal damage to solid insulation devices. In this paper, the electrical tree initiation of polyethylene films after annealing was studied. In addition, the parameter change of PE morphology and thermal stability were also measured and analyzed. It was found that the tree initiation voltage increases with the thickness of lamellae, as well as the tree initiation voltage increases with the increase of melting point. From these results, we presumed that the thermal stability is inherently related with the thickness of lamellae, and thus the thickness of lamellae is one of the important factors that affect the tree initiation process

Keywords

annealing; melting point; polyethylene insulation; polymer films; polymer structure; thermal stability; trees (electrical); annealing; electrical tree initiation; electrical treeing; initiation voltage; lamellae thickness; melting point; morphology; polyethylene films; solid insulation; thermal stability; tree initiation; Annealing; Dielectrics and electrical insulation; Morphology; Plastic films; Polyethylene; Solids; Stability analysis; Thermal stability; Trees - insulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2001 Annual Report. Conference on

Conference_Location

Kitchener, Ont.

Print_ISBN

0-7803-7053-8

Type

conf

DOI

10.1109/CEIDP.2001.963531

Filename

963531