Material XLPE cable application characteristics
China [CN] The insulation materials of automotive cable accessories generally use polyvinyl chloride (PVC) or cross-linked polyethylene (XLPE), which have good insulation properties and wear resistance.
XLPE, the main high-voltage line in the car, can be called: cross-linked polyethylene has the following advantages:
Heat resistance: XLPE with a mesh-like three-dimensional structure has excellent heat resistance.
Insulation performance: XLPE maintains the original good insulation properties of PE, and the insulation resistance further increases.
Mechanical properties: Due to the establishment of new chemical bonds between macromolecules, the hardness, stiffness, wear resistance and impact resistance of XLPE are improved, thus making up for the shortcomings of PE that are susceptible to cracking due to environmental stress.
Compared with TPER, it is not soft enough, and the larger square one (about 70mm2) is harder to pick up first; it requires irradiation and cross-linking, and the process is long, which is not convenient for areas without accelerators;
Of course, the standards applied in different fields are different:
Applied standards for high-voltage lines: ISO 6722, QC/T 1073, CQC 1122,/DECRAK179.
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