v4rev 12018-03-20IEC 61508-2
safe failure fraction
0112/2///61987#ABB192
fraction of the overall random hardware failure rate of a device that results in either a safe failure or a detected dangerous failure
- Used by classes
- 2
- Code
ABB192- Data type
- REAL_MEASURE_TYPEmeasure
- Unit
- UAA000 UAA000
Version history7#
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Metadata#
- Note
- That is the ratio of the average rate of safe failures plus dangerous detected failures of the subsystem to the total average failure rate of the subsystem
- Source document
- IEC 61508-2
- Version
- 4
- Revision
- 1
- Status
- Standard
- Responsible committee
- SC65E – IEC 61987
- Change request
C00004- Dates
- Original: 2013-09-27
- Current version: 2018-03-20
- Current revision: 2018-03-20