Title :
Statistical investigation of dielectric breakdown of LDPE
Author :
Sekii, Yasuo ; Asakawa, Kiyotaka ; Mouri, Kazumasa
Author_Institution :
Dept. of Electr. Eng., Chiba Inst. of Technol., Japan
Abstract :
The statistical characteristics of the dielectric breakdown of low-density polyethylene (LDPE) were investigated through experiments using two grades of LDPE film. The experiments were performed using a parallel plate electrode system with three electrode diameters and three film thicknesses. The breakdown strength data obtained was analyzed by Weibull statistics, and a noticeable difference was observed in the Weibull parameters of breakdown strength for the two film types examined. Based on the statistical results and correlation with microscopic observations of the films, the electric strength of LDPE film is found to be closely related to the abundance of impurities in the material
Keywords :
Weibull distribution; electric breakdown; electric strength; electrodes; insulation testing; polyethylene insulation; statistical analysis; LDPE film; LDPE insulation; Weibull statistics; breakdown strength data; cable insulation; dielectric breakdown; electrode diameters; film thicknesses; low-density polyethylene; microscopic observations; parallel plate electrode system; statistical investigation; Cable insulation; Dielectric breakdown; Electric breakdown; Electrodes; Impurities; Optical films; Plastic films; Polymer films; Power cables; Testing;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973730
