Mean Time Between Failures (MTBF) and Mean Time To Repair (MTTR) are key performance indicators (KPIs) used to assess the effectiveness of a preventive maintenance program. MTBF measures the average time that a piece of equipment operates without failure. It is calculated by dividing the total operating time by the number of failures. A higher MTBF indicates that the equipment is more reliable and that the preventive maintenance program is effective in p....
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