Title :
Electrical conduction of XLPE with vacuum degassed semiconductive electrodes
Author :
Suh, Kwang S. ; Lee, Chang R. ; Han, Min-Koo
Author_Institution :
Dept. of Mater. Sci., Korea Univ., Seoul, South Korea
Abstract :
It has been found that the electrical conduction characteristics of polyethylene are influenced strongly by the vacuum treatment of cross-linked polyethylene (XLPE) and/or semiconductive electrodes. The major changes due to the vacuum treatment of these materials are the suppression in the rate of change of current density at some field range and the change of conduction mechanisms from the SCLC at low fields to the Schottky at high fields. These changes were attributed to the low molecular weight byproducts, which may modify the charge accumulation characteristics
Keywords :
Schottky effect; cable insulation; current density; electrical conductivity of amorphous semiconductors and insulators; limited space charge accumulation; organic insulating materials; polymers; space-charge-limited conduction; 180 C; 25 to 100 C; SCLC; Schottky conduction; XLPE; cable insulation; charge accumulation characteristics; cross-linked polyethylene; current density; electrical conduction characteristics; low molecular weight byproducts; power cable shielding; space charge limited current; vacuum degassed semiconductive electrodes; vacuum treatment; Conducting materials; Current density; Electric variables measurement; Electrodes; Linearity; Materials science and technology; Plastic films; Polyethylene; Power cables; Semiconductor films;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0565-5
DOI :
10.1109/CEIDP.1992.283237
