I.S. EN 60255-21-3:1997
Current
The latest, up-to-date edition.
ELECTRICAL RELAYS - PART 21: VIBRATION, SHOCK, BUMP AND SEISMIC TESTS ON MEASURING RELAYS AND PROTECTION EQUIPMENT - SECTION 3: SEISMIC TESTS
Hardcopy , PDF
English
01-01-1997
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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FOREWORD
1 Scope and object
2 Normative references
3 Definitions
3.1 Single axis sine sweep seismic test
3.2 Biaxial test
3.3 Biaxial multi-frequency random seismic test
3.4 Standard response spectrum
3.5 Damping
3.6 Zero period acceleration
3.7 Random motion sample
3.8 Time-history
3.9 Strong part of the time-history
4 Requirements for single axis sine sweep seismic
test (method A)
4.1 Main parameters
4.2 Test apparatus and mounting
4.3 Test severity classes
5 Requirements for biaxial multi-frequency random
seismic test (method B)
5.1 Main parameters
5.2 Test apparatus and mounting
5.3 Test severity classes
5.4 Biaxial conditioning
6 Selection of test severity classes
6.1 Recommendations for selection of test classes
6.2 identification of test method and severity class
7 Test procedures
8 Criteria for acceptance
Annex A (informative) Seismic tests choice criteria
ANNEX ZA (normative) OTHER INTERNATIONAL PUBLICATIONS QUOTED
IN THIS STANDARD WITH THE REFERENCES OF
THE RELEVANT EUROPEAN PUBLICATIONS
Defines the vibration, shock, bump and seismic requirements applicable to electromechanical and static measuring relays and protection equipment, with or without output contacts.
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
42
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| DIN EN 60255-21-3:1995-11 | Identical |
| EN 60255-21-3:1995 | Identical |
| SN EN 60255-21-3 : 1995 | Identical |
| UNE-EN 60255-21-3:1996 | Identical |
| BS EN 60255-21-3:1995 | Identical |
| IEC 60255-21-3:1993 | Identical |
| IEC 60255-21-2:1988 | Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests |
| EN 60068-2-57:2013 | Environmental testing - Part 2-57: Tests - Test Ff: Vibration - Time-history and sine-beat method |
| IEC 60068-2-57:2013 | Environmental testing - Part 2-57: Tests - Test Ff: Vibration - Time-history and sine-beat method |
| IEC 60068-3-3:1991 | Environmental testing - Part 3-3: Guidance - Seismic test methods for equipments |
| EN 60068-3-3:1993 | Environmental testing - Part 3: Guidance - Seismic test methods for equipments |
| ISO 2041:2009 | Mechanical vibration, shock and condition monitoring Vocabulary |
| HD 323.2.6 : 200S2 | BASIC ENVIRONMENTAL TESTING PROCEDURES - TESTS - TEST FC AND GUIDANCE: VIBRATION (SINUSOIDAL) |
| IEC 60255-21-1:1988 | Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal) |
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