Peroxide XLPE compound can be used for various applications in wire and cable industry including insulation, sheathing, and filling. Polybutylene terephthalate (PBT) is a thermoplastic polyester material that can be used as a jacketing material in fiber optic cables. When used as an insulation material, peroxide XLPE compound provides good electrical and mechanical properties, while PBT provides good abrasion resistance, flexibility, and chemical resistance. The combination of these materials can provide a cable with excellent performance characteristics.