1. Visual inspection of cable
   1. Check for any signs of abnormality.
   2. Check for any signs of partial discharge on cable connections.
2. Online testing and monitoring:
   1. Check for partial discharge, if online partial discharge monitoring system is installed.
   2. Perform thermography of cable connections, where accessible.Check for phase indication, if installed.

1. Insulation resistance (IR) and polarisation index (PI) test.
2. Very low frequency (VLF) test.
3. Offline partial discharge test.
4. Power factor (Tan Delta) test.
5. Contact resistance (Ductor) test of main connection points.
6. Check for earthing connections for continuity.
7. Any other additional inspections and tests as recommended by the manufacturer.