ELECTRICAL RELAYS - VIBRATION, SHOCK, BUMP AND SEISMIC TESTS ON MEASURING RELAYS AND PROTECTION EQUIPMENT - SEISMIC TESTS
International Electrotechnical Committee
FOREWORD
Clause
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
FIGURES
Annex A - Seismic tests choice criteria
Specifies the vibration, shock, bump and seismic tests applicable to electromechanical and static measuring relays and protection equipment, with or without output contacts.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 95 |
