Development And Reliability Study On High Voltage RCP-XLPE Cables

24 August 2005

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 386-390
https://doi.org/10.1109/tdc.1979.712715

Abstract

The electrical qualities of recent RCP-XLPE cables, manufactured under the radiant curing process, will be presented in this paper. These can be satisfactorily used as high voltage cables of the 275 kV class. In order to obtain a still higher reliability of the cables, the statistical method is studied. A fundamental theory on the AC voltage full reel test is proposed and verified experimentally. According to our theory a higher test voltage assures higher reliability in service. Since a stress as high as 40 kV/mm does not do any damage to the insulation of RCP-XLPE cables, they can be assured to have a still higher reliability by a higher voltage reel test. An example of the effect of the reel test in actual is calculated, which shows that the failure probability in service rapidly decreases as the test voltage becomes more than twice the operating voltage.

Keywords

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