Title :
Multi-stress ageing of extruded insulation systems for transmission cables
Author :
Densley, J. ; Bartnikas, R. ; Bernstein, B.S.
Author_Institution :
Ontario Hydro, Toronto, Ont., Canada
Abstract :
EPRI has recently completed an assessment study focusing on processes that occur in extruded, solid-dielectric high-voltage transmission cables aged under dry conditions (RP 2986-04; EL-TR 100268). The purpose of this study was to examine the question of multi-stress ageing of extruded cross-linked polyethylene (XLPE) insulation systems for transmission cables, to review a number of theories of ageing, to review some results of experimental studies of ageing, and finally, to offer a series of recommendations for further research. A summary of this EPRI study is given.<>
Keywords :
ageing; cable insulation; insulation testing; organic insulating materials; polymers; power cables; EL-TR 100268; RP 2986-04; XLPE; assessment; extruded cross-linked polyethylene; extruded insulation systems; multistress ageing; solid-dielectric high-voltage transmission cables; Aging; Cable insulation; Chemicals; Dielectric breakdown; Dielectrics and electrical insulation; Mechanical cables; Moisture; Polymers; Temperature; Thermal stresses;
Journal_Title :
Electrical Insulation Magazine, IEEE
