Title :
Electrical properties of silane crosslinked polyethylene in comparison with DCP crosslinked polyethylene
Author :
Zhu, Yutao ; Yoon, Ho Gyu ; Suh, Kwang S.
Author_Institution :
Dept. of Mater. Sci., Korea Univ., Seoul, South Korea
fDate :
4/1/1999 12:00:00 AM
Abstract :
The electrical properties such as water tree length, electrical conduction, ac breakdown strength and space charge of silane crosslinked polyethylene (SXLPE) were investigated, with a purpose to compare this material with ordinary dicumyl peroxide (DCP) crosslinked polyethylene (XLPE). Experimental results show that SXLPE has a smaller water tree length, much lower conduction current density, a little bit higher ac breakdown strength than XLPE, and on SXLPE only a very small homocharge is seen. The better behaviour of SXLPE under electric stress is attributed to the absence of residual curing byproducts present in XLPE and the change of chemical structure by grafting and curing reactions
Keywords :
XLPE insulation; current density; electric strength; electrical conductivity; power cable insulation; space charge; trees (electrical); SXLPE; ac breakdown strength; chemical structure; conduction current density; curing reactions; electrical conduction; grafting; homocharge; residual curing byproducts; silane crosslinked polyethylene; space charge; water tree length; Cable insulation; Chemical processes; Conducting materials; Curing; Dielectric materials; Electric breakdown; Polyethylene; Power cables; Space charge; Trees - insulation;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
