Common Cause is one of those variables that is not always considered important when it comes to SIL compliance. And yet, for redundant systems, it can have a significant impact on the PFDavg and Risk Reduction achieved (in Low Demand mode) or PFH (in high or continuous mode). Most of the…
exida explains Blog
Entries tagged with: Risk Reduction Factor
- by Steve Gandy, CFSP
- Tuesday, August 15, 2023
- Functional Safety
The Importance Of Considering Common Cause with Redundant Systems
- by Steve Gandy, CFSP
- Tuesday, June 04, 2013
- Functional Safety
Why Do We Need You?
This was a question posed to me by an engineering contractor the other day. Although I found the question quite strange, it made me think “okay, why do they need us?” I suppose there are a few answers:
- Regarding the end user perspective, we exist to provide an independent third-party…