It is experienced that MV XLPE cable links including heat shrink cable joints can have a high electrical conductivity compared to the XLPE cable insulation. The field grading sleeve included in the joint design is proposed to be responsible for the reduced insulation resistance and is therefore...

...dependence of the time domain dielectric response of a virgin stress control sleeve commonly used in heat shrink joints has been studied. The result show that the conductivity of the stress control sleeve is strongly temperature dependent and that space charge phenomenon build up even at...

DC current measurements were performed on a medium voltage XLPE cable at voltages from 8.5 to 65 kV (average field from 2.5 to 19 kV/mm). To assess the effect of mechanical strain on the conductivity of the insulation, the cable was wrapped around a tube with an outer diameter of 110 mm (max...

In this paper, on-site time domain dielectric response measurements have been performed once a month on medium voltage XLPE cable links with heat shrink joints using a conventional 5 kV DC insulation tester. The main purpose of this work has been to examine the reproducibility of the measured...

Condition assessment of water treeing in medium voltage XLPE cable insulations by tan δ measurements is well established. If a measured cable section has one or more joints with low insulation resistance, the assessment of the complete cable link can be difficult as the tan δ is significantly higher...