XLPE Cables:
Cross - linked Polyethylene insulated cables, better known as XLPE cable are fast replacing conventional PVC insulated cable. "midlite" brand XLPE insulated power cables are manufactured in conformance with IS:7098 Part-I
Advantages of XLPE insulated Cables:

• XLPE insulated cables have a higher conductor temperature rating i.e. 90°C as against 70°C of PVC and hence, higher current rating.
• XLPE insulated cables weighs less and have a reduced diameter due to  low density high insulation resistance.
  
• XLPE insulated cables have a greater short circuit withstand capacity as the maximum conductor temperature limit is 250°C as against 160°C for PVC insulated cables. Hence, short circuit rating is higher.
• XLPE insulated cables have higher emergency overload capacity than PVC cables, upto 60% as it can withstand overload temperature of 180°C for longer duration.
• XLPE insulated cables have negligible dielectric losses and they do no vary over the entire operating range.
• XLPE insulated cables have about the double moisture resistance as compared to that of PVC insualted cables.
• XLPE insulated cables have very high insulation resistance as compared to PVC insulated cables. It is nearly 1000 times more than PVC insulation.
• XLPE insulation have higher tensile strength and elongation as compared to PVC.
• XLPE insulated cables have higher corrosion resistance in polluted atmosphere as compared to PVC insulated cables.
• XLPE insulated cables have better properties of resistance to chemicals and corrosive gases.
• XLPE insulated cables have a smaller bending radius and hence are convenient for laying, jointing & termination.
• XLPE insulated cables are not prone to fatigue damage due to vibrations and hot impacts.
• XLPE insulated cables suffers less deformation under combined heat & pressure and are therefore, ideal for transmission and distribution of power.
• XLPE insulated cables have a longer life as compared to conventional PVC insulated cables.

Rating Factors for XLPE cables:

Standard Conditions of Installation:
(1) Maximum conductor temperature	:	90°C
(2) Thermal Resistivity of soil	:	150°C cm/watt
(3) Ambient air temperature	:	40°C
(4) Ground Temperature	:	30°C
(5) Depth of Laying     (for cables laid directly in ground)	:	75 CM