The electrical trees formation in the cable insulation is a major cause behind the failure of underground XLPE cables. India has few wire and cable manufacturing companies who are leading the industry and making people aware of electrical treeing phenomena in detail.
A defect site in cable insulation can form sorts of tree structure- tree-like trees, bush-type trees, intrinsic type, and fibrillar type trees as per the voltage. When XLPE cables manufacturers in India conducted a test, they discover that a higher rate of voltage influences the rate of tree propagation that results in reduction of cable insulation life. They also tried to identify the partial discharges, caused by the propagation and inception of electrical trees, via UHF technique.
