以可靠性为中心的维修思想极大地提高了装备维修的科学性。基于电真空器件的失效规律，从可靠性、安全性、经济性方面研究了电真空器件预防性维修间隔期的定量分析方法，结合算例论证了分析模型的有效性。

RCM(reliability centered maintenance) concept is applied to equipment preventive maintenance which greatly improves it.Based on reliability,safety and maintenance costs,the method of quantitative analysis of equipment preventive maintenance interval has been studied,and the given example shows that both the model and method are effective.

TN957