ABSTRACT
In this Paper, based on the traditional RCM, the concept of risk and risk matrix is introduced into the decision-making flow of RCM, and the risk matrix diagram is generated based on comprehensive consideration of device security, mission fulfillment and economy. Furthermore, the traditional RCM decision making logics is improved in order to enhance the effectiveness and precision of analysis process, to work out reasonable and scientific preventive maintenance period for gas lines and to achieve unification of economic profit and security (Das et al. 2011).
