MTTFFv1rev 12019-05-27IEV 192-05-12:2015-02
mean operating time to first failure
0112/2///61360_4#ADA202
expectation of the operating time to first failure
- Used by classes
- 1
Also appears in1#
Entities with the same name in other dictionaries:
- Code
ADA202- Data type
- REAL_MEASURE_TYPEmeasure
- Unit
- UAA525 UAA525
Version history1#
IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.
All properties21#
- Version
- 1
- Revision
- 1
- Preferred name
- mean operating time to first failure
- Short name
- MTTFF
- Definition
- expectation of the operating time to first failure
- Definition source
- IEV 192-05-12:2015-02
- Note
- Note 1 See also operating time to first failure (192-05-02). Note 2 For non-repairable items, the MTTFF is also the MTTF. Note 3 Term 'mean' is used as synonym to the term arithmetic mean
- Definition class
- 0112/2///61360_4#ADA214measures for reliability related concepts
- Unit structure
- h
- Drawing reference
- NR3..3.3ES2
- Initial value
- 0112/2///62720#UAA525 UAA525
- Published in
- NON_DEPENDENT_P_DET
- Status level
- Standard
- Version release date
- 2019-05-27
- Revision release date
- 2019-05-27
- Version initiation date
- 2019-05-27
- MDC_P022
- REAL_MEASURE_TYPE
- MDC_P040
- T07
- Source definition
- {0112/2///62720#UAA407,0112/2///62720#UAB024,0112/2///62720#UAA880,0112/2///62720#UAB026}