DS DS/EN 60255-21-1
DS DSEN 60255-21-1 1996-FEB-14 Electrcal relays - Part 21 Vbraton shock bump and sesmc tests on measurng relays and protecton equpment - Secton 1 Vbraton tests snusodal
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This part includes two types of vibration tests: the vibration response test and the vibration endurance test, and is generally based upon IEC 68-2-6. The requirements are applicable only to measuring relays and protection equipment in a new condition. The tests specified are type tests.