Welcome to the 2H InitiativeFriday, March 01, 2013
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exida has been gathering field failure data for over a decade. At this point we have a total of over 60 billion unit operating hours of field data for process industry devices. This data has been used to create a 2H database for components. exida is using this component database in the FMEDA process to predict Route 2H compliant failure rates for derivative devices used within the defined environmental profiles.
Route 2H is an alternative to the 1H method which uses minimum hardware fault tolerance tables based on safe failure fraction concepts. Route 2H has simplified minimum hardware fault tolerance requirements that are identical to the IEC 61511 proven in use requirements. exida will apply the 2H approach on…