Type Tests for above 33KV up to 220KV XLPE Copper Cable
Tests on Conductor
- Annealing Test
- Resistance Test
Tests on Insulation
3. Measurement of Thickness of Insulation
4. Measurement of tensile strength and elongation at break
5. Thermal ageing in air oven
6. Hot set test
7. Shrinkage test
8. Void and contaminants test
Tests on semiconductive layers of the insulation
9. Resistivity test on semi-conducting layer
Tests on metallic screen
10. Tests for copper wire
11. Tests for copper tap
Tests on Metallic Sheath
12. Measurement of thickness of the metallic sheath
Tests on Armours
13. Measurement of diameter for circular armours & measurement of width and thickness of strip armours,
14. Tensile strength and elongation at break of armour,
15. Wrapping test on armour,
16. Resistivity test on armour.
Tests on Outer Sheath
17. Measurement of thickness of outer sheath
18. Tensile strength and elongation at break of outer sheath
19. Thermal ageing in air oven of outer sheath
20. Loss of mass test
21. Heat shock test
22. Hot deformation test
23. Shrinkage test
24. Thermal stability test
Tests on Complete Cable Specimen
25. Flammability test
27. Water tightness test
28. Thermal ageing on entire cable specimen
29. Bending test followed by partial discharge test
30. Load cycle test followed by partial discharge test
31. Tan delta measurement with capacitance measurement at ambient temperature
32. Impulse Voltage withstand test
33. Power Frequency withstand test
Routine Tests on XLPE HV Cables
- Measurement of conductor resistance
- Measurement of partial discharge
- High voltage withstand test
Acceptance Tests on XLPE HV Copper Cables
- Conductor resistance test
- Annealing test
- Measurement of dimension of insulation
- Hot set test on insulation
- Void and contaminants test
- Test for thickness of metallic sheath
- Partial discharge test
- High voltage withstand test
- Measurement of capacitance