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Ed Rodriguez

Understanding MTBF Nuances, Part 2

Ed Rodriguez
11/21/2014 6:23:51 PM
User Rank
too much information and not enough wisdom
And you are still complicating a ham sandwich without providing much knowledge. People care about two things, wear out mechanisms whether you want to call that design life, a form of mttf, etc but at the end of the day what will be the primary mass failure mode whether electrolytic cap life in that particular design, lumen depreciation, etc and random failures which MTBF best describes that mainly matters when considering warranty return rates or failure rates in large installations ... Install a thousand units and you will have failures every year starting in year one and at relatively consistent rates every year after installation until you hit end of life when failure rate accelerates rapidly but the mechanism for failure will be consistent.

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