When should NA2XY (XLPE) be specified over NAYY (PVC) insulation?

The choice depends on the thermal and environmental requirements of the installation:

NA2XY (XLPE): Supports a higher continuous operating temperature (90°C) and offers better resistance to chemicals and moisture. It is the international standard for industrial power grids.

NAYY (PVC): Limited to 70°C operating temperatures but is more cost-effective for indoor applications with low mechanical stress.