Why is XLPE preferred over PVC for Medium Voltage insulation?

While PVC is common for low voltage, XLPE (Cross-linked Polyethylene) is the global standard for MV cables because:

Higher Thermal Rating: XLPE can handle continuous operating temperatures of 90°C and short-circuit temperatures up to 250°C.

Lower Dielectric Constant: It minimizes power loss and exhibits superior aging characteristics under high electrical stress.