T/CPCIF 0231-2022 Half-conductive shielding material for thermoplastic polypropylene insulation power cables rated from 6 kV (Um = 7.2 kV) to 35 kV (Um = 40.5 kV)

Scope

Scope: This document specifies the use characteristics, classification and naming, technical requirements, test methods, inspection rules, marking and accompanying documents, packaging, transportation, and storage of semiconductive shielding materials for thermoplastic polypropylene insulated power cables with a rated voltage of 6 kV (Um = 7.2 kV) to 35 kV (Um = 40.5 kV). This document applies to semiconductive shielding materials for thermoplastic polypropylene insulated power cables, which are mainly made from halogen-free olefin-based thermoplastic polymers, with the addition of conductive carbon black and other additives, and are processed through plasticization and granulation. Main technical content: Serial No. Item Name Unit Technical Requirements Test Methods PBB-90-35 PKB-90-35 1 Density g/cm3 ≤ 1.150 ≤ 1.150 See 7.4 Tensile Breaking Stress MPa ≥ 12.5 ≥ 350 ≥ 10.0 ≥ 300 See 7.5 Air Thermal Aging Test Change Rate of Tensile Breaking Stress after Aging Change Rate of Tensile Breaking Stress after Aging %% ≤ 30 ≤ 30 ≤ 30 ≤ 30 See 7.6 Low Temperature Impact Brittleness Test a (-25 °C) Number of Failures ≤ 15/30 ≤ 15/30 ≤ 15/30 ≤ 15/30 See 7.7 Thermal Deformation (Deformation Rate) % ≤ 50 ≤ 50 See 7.8 Volume Resistivity Ω·cm ≤ 100 ≤ 100 See 7.9 Volume Resistivity at 90 °C Ω·cm ≤ 1000 ≤ 500 See 7.10 Air Thermal Aging after 90 °C Volume Resistivity Ω·cm ≤ 1000 ≤ 500 See 7.11 Peel Strength N/cm 10～60 See 7.12 Air Thermal Aging after Peel Strength N/cm 10～60 See 7.13 Oxidation Induction Time (200 °C) min ≥ 30 ≥ 30 See 7.14 a Considering climatic factors, the supply and demand sides may negotiate the use of other temperatures. “—” indicates not applicable.

Development Information

Related Standards