I.S. EN 60255-21-1:1999
Current
The latest, up-to-date edition.
ELECTRICAL RELAYS - VIBRATION, SHOCK, BUMP AND SEISMIC TESTS ON MEASURING RELAYS AND PROTECTION EQUIPMENT - VIBRATION TESTS (SINUSOIDAL)
Hardcopy , PDF
English
01-01-1999
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.
Dates of withdrawal of national standards are available from NSAI.
National foreword
Committees responsible
Clause
1 Scope
2 Object
3 Definitions
3.1 Vibration test (sinusoidal)
3.2 Vibration response test
3.3 Vibration endurance test
3.4 Fixing point (*)
3.5 Measuring points (*)
3.6 Check point (*)
3.7 Reference point (*)
3.8 Sweep-cycle (*)
3.9 Distortion (*)
3.10 Cross-over frequency
3.11 Standard acceleration of gravity
4 Requirements for vibration tests (sinusoidal)
4.1 Test apparatus and mounting
4.2 Test severity class
4.3 Test procedure
5 Criteria for acceptance
5.1 Acceptance criteria for vibration response test
5.2 Acceptance criteria for vibration endurance test
Appendix A Output circuit response during vibration
response test
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