XLPE insulated heavy duty cables were introduced worldwide in mid sixties. These cables have overcome the limitations of PVC Insulated Cables such as thermal degradation, poor moisture resistance and thermoplastic nature.

A. Technical Advantages:

1.Higher current rating, higher short circuit rating approx. 1.2 times that of PVC.

2.Thermosetting in nature.

3.Higher insulated resistance 1000 times more than PVC cables.

4.Higher resistance to moisture.

5.Better resistance to surge currents.

6.Low dielectric losses.

7.Better resistance to chemicals.

8.Longer service life.

9.Comparatively higher cable operation temperature 90 C and short circuit temperature 250 C

B. Commercial Advantages:

1.Lower laying cost because of comparatively smaller diameter of cable and higher weight*.

2.Lower installation charges as the diameter of cable is comparatively lesser with smaller bending radius, requiring less space requirement for laying cables.

3.**One size lower cable can be used as compared to PVC insulated cable.