Specially designed for YJV/YJLV series cables (suitable for 50-400mm ² cross-section), using an integrated stress cone and composite insulation structure (inner semiconducting layer+XLPE+anti trace layer), passed GB/T 18889-2021 type test, with a long-term use temperature range of -55 ℃ to 105 ℃, an aging life of up to 20 years, a radial shrinkage rate of ≥ 50%, a longitudinal shrinkage rate of<5%, and a shrinkage temperature of 110 ℃ to 140 ℃.