Abstract
The current methods of calculating the economic productivity of fire pumpers reduce the value of the vehicle based on its lifetime use. However, it is reasonable to base the service time of a fire pumper on its original function. In this study, we proposed the use of the functional approach to determine the productivity of fire pumpers as opposed to the use of the economic approach. The Korea Fire Institute is a professional institution that inspected 342 fire pumpers in 2019. In all, 102 pumpers were found to be malfunctioning. The number was modified to 100 cases considering the production date and results of statistical analysis. Next, we determined a mean time to failure (MTTF) of 7.65 years based on the service time data using Weibull distribution; this MTTF is 2.35 years shorter than the current mean service time of the pumpers, so this study selected a reasonable service time of 8 years for a pumper.
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