NEN 10255-21-3
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests
| Organization: | NEN |
| Publication Date: | 1 May 1995 |
| Status: | active |
| Page Count: | 40 |
| ICS Code (Relays): | 29.120.70 |
scope:
Descibes two alternative types of seismic tests: the single axis sine sweep seismic test (method A) and the biaxial multi-frequency random seismic test (method B). The requirements are applicable to electromechanical and static measuring relays and protection equipment, with or without output contacts. The tests specified are type tests. The object is to state definitions of terms used, test conditions, standard test stverity classes, test procedures.
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