The Role of Modern Insulation Materials (PVC – XLPE) in Enhancing Cable Performance

Insulation materials are among the most critical elements affecting cable reliability and lifespan. PVC is widely used in building wires due to its flexibility and flame-retardant properties, while XLPE is the preferred choice for low- and medium-voltage applications because it withstands temperatures up to 90–110°C.

Standards such as IEC 60502 and UL 44 recommend XLPE for industrial installations because of its:

• Excellent thermal endurance

• High chemical resistance

• Superior moisture resistance

• Outstanding dielectric properties

The introduction of advanced additives has enhanced flame-retardant PVC, making it compliant with modern NEC and NFPA safety requirements.

These improvements significantly increase cable durability, reduce faults, and extend service life by up to 30%.