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本文叙述绝缘材料快速热老化试验方法──热重点斜法（ＴＰＳ）研究的新成果。ＴＰＳ的功能性老化试验，可以采用变温技术，既节约了试验时间及费用，又提高了结果的可靠性，故在实用上有重要意义；理论分析及试验数据证明，ＴＧ试验的过高的温度，对ＴＰＳ的准确度影响很小；ＴＰＳ时活化能ＥＰ的计算公式，有极好的再现性，是ＴＰＳ的主要优点之一，并非所谓的“迟钝”；ＴＰＳ中ＴＧ试验起次要的作用，这是由常规老化法的规律所决定的，是合理的，不是ＴＰＳ的缺点；事实上，ＴＰＳ的准确度很可能不亚于常规法（ＣＡ）。
This article describes a rapid thermal aging test method for insulating materials - a new achievement in the study of thermal stress-gradient (TPS). TPS functional aging test, you can use temperature technology, saving both test time and costs, but also improve the reliability of the results, it is important in practical significance; theoretical analysis and experimental data show that TG test temperature is too high , Which has little effect on the accuracy of TPS; TPS activation energy EP formula, has excellent reproducibility, is one of the main advantages of TPS, not the so-called “slow”; TPS plays a secondary role in the TG test , Which is determined by the laws of the conventional aging method and is reasonable and not a disadvantage of TPS; in fact, the accuracy of TPS is likely to be as good as the conventional method (CA).