CENELEC
CLC/SR 56 |
Dependability |
Project
| Reference | EN 61124:2012 |
|---|---|
| Title | Reliability testing - Compliance tests for constant failure rate and constant failure intensity |
| Project Number | 22707 |
| Abstract/Scope | IEC 61124:2012 gives a number of optimized test plans, the corresponding operating characteristic curves and expected test times. In addition the algorithms for designing test plans using a spreadsheet program are also given, together with guidance on how to choose test plans. This standard specifies procedures to test whether an observed value of: failure rate, failure intensity, meantime to failure (MTTF), and mean operating time between failures (MTBF). The main changes with respect to the previous edition are as follows: - A number of new test plans have been added based on the Russian standard GOST R 27.402 [1], and it is intended to align the new edition of MIL-HDBK-781 [2] with this edition. Algorithms for optimizing test plans using a spreadsheet program are given and a number of optimized test plans are listed. Furthermore, emphasis is laid on the fact that the test should be repeated following design changes; - Discrepancies in test plans A, B as well as Annexes A and B that originated in IEC 60605-7 [3], now withdrawn, have been corrected so these test plans differ from those given in previous editions of IEC 61124. As requested by the National Committees, mathematical background material and spreadsheet program information has been moved to informative annexes. In addition, the symbol lists have been divided, so that some annexes have separate lists of symbols; - Guidance on how to choose test plans has been added as well as guidance on how to use spreadsheet programs to create them. Test plans A.1 to A.9 and B.1 to B.13 have been corrected; - Subcluses 8.1, 8.2, 8.3, Clause 9, Annex C, Clauses G.2, I.2, I.3 and Annex J are unchanged, except for updated terminology and references. |
| Status |
Published
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Status
| Current Stage code | 6060 |
|---|---|
| Current Stage code date | 2012-08-10 |
| Current Stage code deadline | 2013-03-27 |
| Deadline date for vote |
Legal
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| Order Voucher |
Details
| IEC Technical Body | IEC/TC 56 |
|---|---|
| Reference Document | IEC 61124:2012 (EQV) + corrigendum Jan. 2013 (EQV) |
| ICS | 03.120.30 - Application of statistical methods 19.020 - Test conditions and procedures in general 21.020 - Characteristics and design of machines, apparatus, equipment |
| Keywords | Reliability; Compliance; Failure; Rate; Intensity |
| Note | Supersedes EN 61124:2006 |
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Information
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History
Implementation Dates
| date of Ratification (DOR) (1) | 2012-06-27 |
|---|---|
| date of Availability (DAV) (2) | 2012-08-10 |
| date of Announcement (DOA) (3) | 2012-09-27 |
| date of Publication (DOP) (4) | 2013-03-27 |
| date of Withdrawal (DOW) (5) | 2015-06-27 |
Relations
| Supersedes | EN 61124:2006 |
|---|---|
| Superseded by | |
| Normative reference (6) | IEC 60050-191:1990 IEC 60300-3-5:2001 IEC 60605-2:1994 IEC 60605-4:2001 IEC 60605-6:2007 IEC 61123:1991 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
