exida Recorded Webinars

Safe Failures Aren’t Always your Best Friend (2016)

Recording Date: August 2016

It is important that a plant does not encounter spurious trips, therefore disrupting process and losing time and money. Even more important is preventing the occurrence of an accident that could result in a loss of a plant, damage to the environment, or even loss of life.

This webinar will discuss how calculating the spurious trip rate is important and what can be done with that number (saving time and money). It will also cover dangerous detected failures, and how those play a part in the Safe Failure Fraction calculation and how they are compared to spurious trips. How simple mechanical devices and/or final elements can still partake in SIL ratings by means of the 2H method of evaluation without adding additional safe failures will also be presented.

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About the Presenter:

Loren Stewart, CFSE

Loren Stewart Loren Stewart graduated from Virginia Tech with a BSME. She has over 10 years of professional experience. She currently works for exida consulting as a safety engineer, focusing on the mechanical aspects of their customers. Along with assessing the safety of products and creating FMEDAs and reports, she researches stiction and is creating a database for the 2H initiative according to IEC 61508.