Title :
Water treeing and molecular properties of the polymer
Author :
Patsch, Rainer ; Jung, Jochen ; Motori, Antonio ; Montanari, Gian Carlo
Author_Institution :
Inst. of Mater. in Electr. Eng., Siegen Univ., Germany
Abstract :
The examination of the size distributions of water trees in 20 kV XLPE cables removed from service after more than a decade revealed astonishing differences, partly explainable by the existence of single winged and bow tie water trees. Step-test results of field-aged cables indicate the existence of two types of XLPE with different susceptibility to water treeing. A corresponding differentiation seems to exist in the melting temperatures
Keywords :
XLPE insulation; power cable insulation; trees (electrical); 20 kV; XLPE cable insulation; bow tie; field aging; melting temperature; molecular properties; polymer; single wing; size distribution; step testing; water treeing; Cable insulation; Dielectrics and electrical insulation; Manufacturing; Microscopy; Plastic insulation; Polymers; Temperature; Trees - insulation; Underwater cables; Water;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location :
Millbrae, CA
Print_ISBN :
0-7803-3580-5
DOI :
10.1109/CEIDP.1996.564628
