Fault analysis of a certain ship alarm system based on FMECA

In order to improve the reliability of a certain ship alarm system,failure modes effects and criticality analysis(FMECA)for the alarm system are conducted to clear and definite the potential risk existing in system design,and then the weak links and defects of system design are found out through the reliability enhancement testing(RET). The results of FMECA and RET are consistent with each other. The combination of them provided a method to improve the reliability of alarm system.