Electrical cable construction
- Components of underground power cables
- Cable insulation materials ,effect of humidity and temperature on the underground power cables insulation
- Cable conductors material
- Cable sheathing, metallic and non metallic
- Cable armoring
- Cables Troubleshooting
- Insulation current-capacitive current and resistive current-polarization index
- Current carrying capacity of underground power cables
- Short circuit ratings of underground power cables
- De-rating factor
Testing of Underground power cables
- Insulation testing of underground power cables
- AC high potential testing
- Partial discharge testing
- Tan Delta or cable power factor test
- Insulation quality tests
- Type tests, routine tests and maintenance tests
- Testing according to IEC, CENELEC and ICEA
- Might the cable fails during testing
Installation of Underground power cables
- Trenching of underground power cables
- Clamping, Cable pulling , and mounting of accessories
- XLPE cable system installation
- Types of cable installation
- Trefoil and flat formation systems
- Underground power cables grounding
- Thermal performance of underground power cables
Cables Fault Locator
- How the fault locator work
- Selecting of fault locator
- Time domain reflectometry
- Low voltage TDR/Cable radar
- Surge generators
- Electromagnetic surge detection
- High voltage radar
- Surge detector