Frequently Asked Question

We have an issue regarding the IEC 61511 compliance report. We generated 2 reports on different times but with the same data. In the first case we got a SFF value of 80.1 for our final element in a SIF. When we generated a new report the SFF value has bee
Last Updated a year ago

It is likely that in one of the reports the SFF calculation is based on 61508:2000, while in the second report it is based on 61508:2010. In addition, 61511:2016 may have been selected in the SIF parameters.
The tables in 61511 are prescriptive and not using the SFF, So the resulting SIF is not changed.

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