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Research on Lifespan Prediction of Cross-Linked Polyethylene Material for XLPE Cables

机译：XLPE电缆交联聚乙烯材料的寿命预测研究

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摘要

In this paper, cross-linked polyethylene (XLPE) cables of the same batch from Factory A, which ran from 1 to 8 years in Jiangsu Province, are sampled. Some widely accepted aging characterization methods of XLPE cables such as the gel content test, differential scanning calorimetry (DSC) test, tensile test and hardness test are employed to obtain the physicochemical, mechanical and electrical properties of the samples. Then, some lifespan prediction parameters significantly correlated with operating time are obtained through correlation calculations. Finally, a prediction method is proposed to predict the operating time of XLPE cables from Factory A. The test results indicate that parameters including the gel content C ge , the crystallinity X C , tensile strength σ , ultimate elongation δ , the dielectric permittivity ε , and the dielectric loss J tan are significantly correlated with operating time, which can be used in evaluating the aging degree of XLPE cables. Moreover, due to the high accuracy of the experimental verification, it turns out that the lifespan prediction method proposed in this paper can be used to determine the operating time of XLPE cables from Factory A in future research.
机译：本文采用了从江苏省1至8年的工厂A与工厂A相同批次的交联聚乙烯（XLPE）电缆。一些广泛接受的XLPE电缆老化表征方法，例如凝胶含量试验，差示扫描量热法（DSC）试验，拉伸试验和硬度试验，用于获得样品的物理化学，机械和电学性质。然后，通过相关性计算获得与操作时间显着相关的一些寿命预测参数。最后，提出了一种预测方法来预测来自工厂A的XLPE电缆的运行时间。测试结果表明包括凝胶含量C Ge，结晶度XC，拉伸强度σ，极限伸长率δ，介电介电常数ε的参数，以及介电损耗J TAN与操作时间显着相关，可用于评估XLPE电缆的老化程度。此外，由于实验验证的高精度，事实证明，本文提出的寿命预测方法可用于从未来研究中从工厂A确定XLPE电缆的操作时间。

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