2022 Volume 29 Issue 115 Pages 115_25-115_37
It is not clear how to take measures other than replacing when the cable covered with polyethylene is damaged for some reason and the inside of cable is in a corrosive environment. In this paper, we examine the effect of various methods for improving the corrosive environment using an actual cable with high humidity inside the cable. As a result, it is found that it is necessary to induce clear air flow in order to dehumidify inside the cable which consists of a large number of wires. And if the polyethylene is not damaged and sealed,there is a high possibility that the entire inside the cable can be dehumidified by air supply drying using the air supply holes and the exhaust holes provided at the bottom of the cable.