分别应用传统寿命评估方法和基于可靠性的寿命方法对华能辛店发电厂主蒸汽管进行了寿命评定 ,基于可靠性的寿命评估方法认为主蒸汽管道的失效是一随机事件 ,并以可靠度 (失效概率 )为主要判据与现在火电厂实行的可靠性管理有机地结合在一起 ,所以该方法比传统方法更准确、更客观 The life assessment of the main steam pipe of Huaneng Xindian Power Plant was carried out by the method of traditional life assessment and reliability based life expectancy respectively. Based on the reliability life assessment method, the failure of the main steam pipe is regarded as a random event, and the reliability Failure probability) as the main criterion organically integrated with the current reliability management of thermal power plants, so the method is more accurate and objective than the traditional method