English French German Japanese Chinese


PROPERTY

Code:
0112/2///61360_4#ADA201

Version:
001

Revision:
01

IRDI:
0112/2///61360_4#ADA201#001

Preferred name:
mean operating time to failure

Synonymous name:

Symbol:

Synonymous symbol:

Short name:
MTTF

Definition:
expectation of the operating time to failure

Note:
Note 1 In the case of non-repairable items with an exponential distribution of operating times to failure (i.e. a constant failure rate) the MTTF is numerically equal to the reciprocal of the failure rate. This is also true for repairable items if after restoration they can be considered to be "as-good-as-new".

Note 2 See also operating time to failure (IEV 192-05-01).

Note 3 Term 'mean' is used as synonym to the term arithmetic mean

Remark:

Primary unit:
h

Alternative units:

Level:

Data type:
REAL_MEASURE_TYPE

Format:
NR3..3.3ES2

Property constraint:

Definition source:
IEV 192-05-11:2015-02

Property data element type:
NON_DEPENDENT_P_DET

Drawing:

Formula in text:

Value list code:

Value list:

DET class:
T07 - time, time interval, duration

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#UAA525 - hour

Codes for alternative units:
0112/2///62720#UAA407 - day
0112/2///62720#UAB024 - week
0112/2///62720#UAA880 - month
0112/2///62720#UAB026 - year

Code for unit list:

Status level:
Standard

Is deprecated:

Published in:

Published by:

Proposal date:
2019-05-27

Version initiation date:

Version release date:
2019-05-27

Revision release date:
2019-05-27

Obsolete date:

Responsible Committee:

Conditions:
-

Change request ID:

Version history:
001-01 (2019-05-27 13:16:12 by BATCH 00001062) standard


PROPRIÉTÉ

Code:
0112/2///61360_4#ADA201

Version:
001

Révision:
01

IRDI:
0112/2///61360_4#ADA201#001

Nom préféré:

Nom synonyme:

Symbole:

Symbole synonyme:

Nom court:

Définition:

Note:

Remarque:

Traducteur:

Version de traduction:

Date de traduction:

Unité primaire:
h

Unités alternatives:

Niveau:

Type de données:
REAL_MEASURE_TYPE

Format:
NR3..3.3ES2

Property constraint:

Source de définition:
IEV 192-05-11:2015-02

Property data element type:
NON_DEPENDENT_P_DET

Dessin:

Formule:

Value list code:

Liste de valeurs:

Classe DET:
T07 - time, time interval, duration

Classes applicables:
0112/2///61360_4#ADA214 - measures for reliability related concepts

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

Code for unit:
0112/2///62720#UAA525 - hour

Codes for alternative units:
0112/2///62720#UAA407 - day
0112/2///62720#UAB024 - week
0112/2///62720#UAA880 - month
0112/2///62720#UAB026 - year

Code for unit list:

Statut:
Standard

Is deprecated:

Publié dans:

Publié par:

Date de proposition:
2019-05-27

Version, date d'initialisation:

Version, date de publication:
2019-05-27

Revision release date:
2019-05-27

Date d'obsolescence:

Responsible Committee:

Conditions:
-

Change request ID:

Historique:
001-01 (2019-05-27 13:16:12 by BATCH 00001062) standard


MERKMAL

Code:
0112/2///61360_4#ADA201

Version:
001

Revision:
01

IRDI:
0112/2///61360_4#ADA201#001

Bevorzugter Name:
mittlere Betriebszeit bis zum Ausfall

Synonym:

Symbol:

Synonymes Symbol:

Kurzbezeichnung:

Definition:

Notiz:

Bemerkung:

Übersetzer:

Übersetzung, Revision:

Übersetzung, Revisionsdatum:

Empfohlene Einheit:
h

Alternative Einheit(en):

Ebene:

Datentyp:
REAL_MEASURE_TYPE

Format:
NR3..3.3ES2

Property constraint:

Quelle der Definition:
IEV 192-05-11:2015-02

Property data element type:
NON_DEPENDENT_P_DET

Zeichnung:

Formel:

Value list code:

Werteliste:

Geltungsbereich:
T07 - time, time interval, duration

Anwendbare Klassen:
0112/2///61360_4#ADA214 - Messgrößen für Funktionsfähigkeitskonzepte

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

Code for unit:
0112/2///62720#UAA525 - hour

Codes for alternative units:
0112/2///62720#UAA407 - day
0112/2///62720#UAB024 - week
0112/2///62720#UAA880 - month
0112/2///62720#UAB026 - year

Code for unit list:

Status:
Standard

Is deprecated:

Veröffentlicht in:

Veröffentlicht von:

Datum des Vorschlags:
2019-05-27

Version, Veranlassungsdatum:

Version, Freigabedatum:
2019-05-27

Revision release date:
2019-05-27

Gestrichen seit:

Responsible Committee:

Bedingung(en):
-

Change request ID:

Historie:
001-01 (2019-05-27 13:16:12 by BATCH 00001062) standard


プロパティ（属性）

識別コード:
0112/2///61360_4#ADA201

改訂版:
001

修正刷:
01

IRDI:
0112/2///61360_4#ADA201#001

推奨名:

別名:

記号:

同義記号:

略称:

定義:

注記:

備考:

翻訳者:

翻訳第　m 版:

翻訳版発行日:

主用単位:
h

代替単位系:

レベル:

データ型:
REAL_MEASURE_TYPE

形式:
NR3..3.3ES2

Property constraint:

定義出典:
IEV 192-05-11:2015-02

Property data element type:
NON_DEPENDENT_P_DET

図:

数式:

Value list code:

値リスト:

ISO 31 プロパティ分類　:
T07 - time, time interval, duration

実効クラス:
0112/2///61360_4#ADA214 - measures for reliability related concepts

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

Code for unit:
0112/2///62720#UAA525 - hour

Codes for alternative units:
0112/2///62720#UAA407 - day
0112/2///62720#UAB024 - week
0112/2///62720#UAA880 - month
0112/2///62720#UAB026 - year

Code for unit list:

状態:
標準

Is deprecated:

公開:

公開者:

提案日時:
2019-05-27

初版作成日:

改訂版公開日:
2019-05-27

Revision release date:
2019-05-27

廃用期日:

Responsible Committee:

条件:
-

Change request ID:

版改訂履歴:
001-01 (2019-05-27 13:16:12 by BATCH 00001062) standard


PROPERTY

代码:
0112/2///61360_4#ADA201

版本号:
001

修订号:
01

IRDI:
0112/2///61360_4#ADA201#001

推荐名:

同义名:

符号:

同义符号:

短名:

定义:

注释:

备注:

Translator (to be translated in Chinese):

Translation revison (to be translated in Chinese):

Translation revision date (to be translated in Chinese):

基本单位:
h

替代单位:

层:

Data type:
REAL_MEASURE_TYPE

格式:
NR3..3.3ES2

Property constraint:

定义来源:
IEV 192-05-11:2015-02

特性数据元素类型:
NON_DEPENDENT_P_DET

图:

公式:

取值列表代码:

取值列表:

DET类:
T07 - time, time interval, duration

适用类:
0112/2///61360_4#ADA214 - measures for reliability related concepts

定义类:
0112/2///61360_4#ADA214

单位代码:
0112/2///62720#UAA525 - hour

替代单位代码:
0112/2///62720#UAA407 - day
0112/2///62720#UAB024 - week
0112/2///62720#UAA880 - month
0112/2///62720#UAB026 - year

单位列表代码:

状态级别:
Standard (to be translated)

Is deprecated:

发布:

发布者:

提议日期:
2019-05-27

版本生成日期:

版本发布日期:
2019-05-27

修订发布日期:
2019-05-27

废止日期:

负责委员会:

条件:
-

变更请求号:

版本历史:
001-01 (2019-05-27 13:16:12 by BATCH 00001062) standard

Version history
Historique
Historie
版改訂履歴:
版本历史:
001-01 (2019-05-27 13:16:12 by BATCH 00001062) standard


Web page created 2025-04-25
Copyright © 2025 IEC, Geneva, Switzerland. All rights reserved