Title :
Water trees in medium voltage XLPE cables: Very short time accelerated ageing tests
Author :
Hennuy, B. ; Marginet, J. ; Francois, Alexandre ; Platbrood, G. ; Tits, Y. ; De Clerck, Q.
Author_Institution :
Laborelec, Linkebeek, Belgium
Abstract :
This paper describes a pragmatic method to assess the resistance of polymeric insulation cables to water treeing. Water trees are produced in 12 days in the polyethylene insulation of a real cable by use of a high frequency, high voltage power supply. The first objective was to provide a source of information for asset management (remaining lifetime estimation of installed cables) but it is also applicable for the assessment of new products and allows a rapid comparison between different materials.
Keywords :
XLPE insulation; ageing; power cable insulation; trees (electrical); ageing tests; asset management; high voltage power supply; medium voltage XLPE cables; polyethylene insulation; polymeric insulation cables; pragmatic method; short time acceleration; water trees;
Conference_Titel :
Electricity Distribution - Part 2, 2009. CIRED 2009. The 20th International Conference and Exhibition on
Conference_Location :
Prague
Print_ISBN :
978-1-84919-160-9
