Several methods exist for joining PILC cables such as heat shrink tubing, vacuum cast or cold shrink tubingor silica sand contained thermal setting resin transition units. There are advantages and drawbacks to each of these jointing methods. It is necessary to understand each of them before using a particular method.
Today’s age is said to be the age of polymeric cable installations. However, about 50% of the underground network of a power distribution system comprises installations of old paper-insulated cables. Though emphasis is greatly placed on ‘pushing out the lead’ the old cable installations still hold sway. In spite of these systems being many years old they still continue to function effectively as long as they are not disturbed.