Protective device (Mtive) MTIVE = Mean time between failure for the protective device See Also Protected function (Mted) MTED = Mean time between failure for the protected function See Also Cost of failure finding task (Cff) CFF = cost of doing the failure finding task (per task) See Also Cost of multiple failures (Cm) CM = cost of the multiple failure (cost per event) See Also Number of redundant protective devices (n) Number of independent, fully redundant protective devices in the protected system See Also
