AC Electrical Characteristics of Polypropylene for Eco-friendly Thermoplastic Power cable

The accelerating global transition toward a circular economy and net-zero carbon emissions is influencing the development of materials for power transmission infrastructure. Although cross-linked polyethylene (XLPE) is widely utilized in the medium- and high-voltage cable market owing to its proven dielectric reliability, its thermosetting nature limits genuine material recyclability, resulting in increased carbon footprint and environmental burden during end-oflife processing. In this context, polypropylene (PP), a recyclable thermoplastic polymer with high thermal stability and intrinsically low relative permittivity, has emerged as a promising candidate for next-generation eco-friendly power cable insulation. However, the successful deployment of PP in AC insulation systems relies on a…