Influence of diffusion on some electrical properties of synthetic cables

Author

Bezille, J. ; Janah, H. ; Chan, J. ; Hartley, M.D.

Author_Institution

Alcatel Cable, Calais, France

fYear

1992

Firstpage

567

Lastpage

572

Abstract

It was shown previously that low-molecular-weight fractions of copolymers used in semiconductive compounds diffuse into the insulation during the cable manufacturing process. In the present work, the influence of this diffusion on electrical properties such as AC, DC, and impulse strength has been studied. Initial tests on thin cross-linked polyethylene films peeled from full-size cables have shown different trends. Interfacial diffusion has a detrimental effect on DC strength, but its effect on AC and impulse strength is not clear

Keywords

cable insulation; cable testing; chemical interdiffusion; electric breakdown of solids; electric strength; impulse testing; insulation testing; organic insulating materials; polymer films; polymers; power cables; AC strength; DC strength; XLPE cables; breakdown; cable insulation; copolymers diffusion; electrical properties; impulse strength; interfacial diffusion; synthetic cables; thin cross-linked polyethylene films; Aging; Cable insulation; Dielectrics and electrical insulation; Electric breakdown; Fuses; Spectroscopy; Testing; Transistors; Voltage; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-0565-5

Type

conf

DOI

10.1109/CEIDP.1992.283155

Filename

283155