Compact Joint for 154kV Class XLPE and Oil-filled Cable

Abstract

The joint of XLPE and Oil-filled cable is necessary and indispensable to meet the switch needs in replacing the oil-filled cable along with making of the underground power transmission system. However, because only connected space of the joint for the oil-filled cable is secured in narrow space of the existing manhole, the problem might be brought up to construction in the structure of the old model from the size and weight. Then, the compact joint that had reduced by about 80% of a structural size so far was developed by applying the high electric field technology according to making of EHV XLPE cable and the joint.