The HT cables(34.5kV) which are incoming to our plant from the substation have 5 cables each phase.The shields of the cables are connect to ground on one side. The other side shields are insulated and kept open.Length of the cable from substation to plant is around 250 mtrs.
Recently we observed , one of the open shields was overheated and the insulation was burnt ?
Can someone explain the reason ?
Recently we observed , one of the open shields was overheated and the insulation was burnt ?
Can someone explain the reason ?