UNE-EN 60255-21-3:1996 ELECTRICAL RELAYS. PART 21: VIBRATION, SHOCK, BUMP AND SEISMIC TEST ON MEASURING RELAYS AND PROTECTION EQUIPMENT. SECTION 3: SEISMIC TESTS.
1996UNE-EN 60255-21-3:1996 ELECTRICAL RELAYS. PART 21: VIBRATION, SHOCK, BUMP AND SEISMIC TEST ON MEASURING RELAYS AND PROTECTION EQUIPMENT. SECTION 3: SEISMIC TESTS.