A new crosslinked polymer composition, power cable insulation and power cable

摘要

It has a melt flow index (MFR) of at least 1.7, contains polyolefins, peroxides, and sulfur containing antioxidants, using a Differential Scanning Calorimeter (DSC) to ASTM-D3895, ISO/CD 11357 and EN 728. It is characterized in that it has an oxidation induction time determined according to, and the oxidation induction time corresponds to Z minutes, and includes the amount of peroxide by the product corresponding to W ppm determined according to BTM2222 using HPLC, the Z _{1≤ Z ≤ Z 2} , W _{1≤ W ≤ W 2} , and W ≤ p 270 * Z, wherein Z ₁ is 0, Z ₂ is 60, W ₁ is 0 and W ₂ is 9500, and p is 18500 Phosphorus, a crosslinked polymer composition obtained by crosslinking a polymer composition; And its uses, high voltage (HV) and ultra high voltage (EHV) cable applications, useful for direct current (DC) applications, power cable insulation and power cables.