Based on foundational data in secondary equipments management Information System, self-test effectiveness index, maintenance index and repairing index are introduced, and Markov model of secondary equipments reliability analysis is developed in this paper. Furthermore, the software to calculate the optimum routine test interval of secondary equipments is compiled. Reliability index and optimum routine test interval of secondary equipments are calculated. The impact of self-test effectiveness index and maintenance index on secondary equipments reliability index are analyzed. Secondary equipment...