On temperature dependence of electric strengths of polar polymeric films in low-temperature region

Author

Nagao, M. ; Kosaki, M. ; Mizuno, Y.

Author_Institution

Toyohashi Univ. of Technol., Aichi, Japan

fYear

1992

fDate

7-10 Sep 1992

Firstpage

85

Lastpage

88

Abstract

This paper describes the electrical breakdown of polar polymers especially in the cryogenic temperature region. The tests were made with newly developed specimens for the breakdown measurement at cryogenic temperature. The temperature dependence of electric strengths of polar polymeric films in the cryogenic temperature region is quite different from that reported previously with recessed specimens. The new results are inherent to the film. From the dependence of electric strength on the rise rate of applied field and prestressing, it is clear that the electrical breakdown of polar polymers at cryogenic temperature is affected by the space charge effect

Keywords

cryogenics; electric breakdown of solids; electric strength; polymer films; space charge; 77 to 200 K; EVA; LDPE; McKeown specimen; PVC; applied field rise rate; cryogenic temperature region; electric strengths; electrical breakdown; polar polymeric films; prestressing; space charge effect; temperature dependence;

fLanguage

English

Publisher

iet

Conference_Titel

Dielectric Materials, Measurements and Applications, 1992., Sixth International Conference on

Conference_Location

Manchester

Print_ISBN

0-85296-551-6

Type

conf

Filename

186887