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PROPERTY |

Code: | 
0112/2///61360_4#ADA195 |

Version: | 
001 |

Revision: | 
01 |

IRDI: | 
0112/2///61360_4#ADA195#001 |

Preferred name: | 
reliability measure |

Synonymous name: | 
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Symbol: | 
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Synonymous symbol: | 
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Short name: | 
R(t1, t2) |

Definition: | 
probability of performing as required for the time interval (t1, t2), under given conditions |

Note: | 
Note 1 Given conditions include aspects that affect reliability, such as: mode of operation; stress levels; environmental conditions; and maintenance, where applicable.
Note 2 It is usually assumed that the item is in a state to perform as required at the beginning of the time interval.
Note 3 When t1 = 0 and t2 = t, then R(0, t) is denoted simply as R(t) and termed the reliability function, or survival function of the item.
Note 4 See also reliability of an item IEV 192-01-24:2015-02. |

Remark: | 
See IEC 61703, Mathematical expressions for reliability, availability, maintainability and maintenance support terms, for more details. |

Primary unit: | 
% |

Alternative units: | 
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Level: | 
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Data type: | 
REAL_MEASURE_TYPE
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Format: | 
NR2..3.3 |

Property constraint: | 
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Definition source: | 
IEV 192-05-05:2015-02 |

Property data element type: | 
NON_DEPENDENT_P_DET |

Drawing: | 
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Formula in text: | 
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Value list code: | 
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Value list: | 
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DET class: | 
R51 - percentages/ratios related to goods in situations |

Applicable classes: | 
0112/2///61360_4#ADA214 - measures for reliability related concepts |

Definition class: | 
0112/2///61360_4#ADA214 |

Code for unit: | 
0112/2///62720#UAA000 - percent |

Codes for alternative units: | 
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Code for unit list: | 
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Status level: | 
Standard |

Is deprecated: | 
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Published in: | 
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Published by: | 
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Proposal date: | 
2019-05-27 |

Version initiation date: | 
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Version release date: | 
2019-05-27 |

Revision release date: | 
2019-05-27 |

Obsolete date: | 
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Responsible Committee: | 
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Conditions: | 
-
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Change request ID: | 
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Version history: | 
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