How does the insulation performance of cross-linked irradiated PE line affect its stability in high-voltage environments?
Publish Time: 2025-03-03
The insulation performance of cross-linked irradiated PE line plays a vital role in high-voltage environments, mainly affecting its stability, durability and safety.1. Improve dielectric strength and reduce the risk of breakdownThe cross-linking irradiation process forms a three-dimensional mesh cross-linking in the molecular structure of polyethylene, which improves the dielectric strength of the material, making it less likely to undergo electrical breakdown in high-voltage environments, thereby improving safety and reliability.2. Improve heat resistance and prevent thermal degradation of the insulation layerOrdinary PE is easy to soften at high temperatures, while cross-linked irradiated PE lines can withstand higher temperatures (usually up to 125℃ or even higher), and can still maintain stable insulation performance during long-term high-voltage operation, and are not prone to short circuits or failures due to thermal degradation.3. Excellent resistance to electrical treeingElectrical treeing is a common problem of high-voltage cable insulation aging, which can easily lead to gradual deterioration of the insulation layer and eventual breakdown. The dense cross-linked irradiated PE line structure greatly improves its resistance to electrical treeing and extends the service life of the cable.4. Low dielectric loss and improved transmission efficiencyCross-linked PE insulation materials have low dielectric loss, which reduces energy loss and improves power transmission efficiency during long-distance power transmission of high-voltage cables. This is particularly critical in high-voltage applications such as smart grids, rail transit, and industrial equipment.5. Environmental resistance and long-term insulation stabilityCross-linked irradiated PE line has good moisture resistance, chemical corrosion resistance, and UV resistance. Even in high humidity, high pollution, or harsh outdoor environments, it can maintain long-term insulation stability and reduce the risk of insulation aging caused by environmental factors.With its excellent insulation performance, cross-linked irradiated PE line can provide more reliable and safer electrical performance in high-voltage environments, which not only reduces the risk of breakdown, but also improves heat resistance, aging resistance, and long-term operation stability. Therefore, it is widely used in high-demand industries such as power, automobiles, rail transit, and aerospace.
