This standard is part of a series specifying the vibration, shock,bump and seismic requirements applicable to measuring relays and protection equipment (with or without contacts). This standard 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 of this standard are applicable only to measuring relays and protection equipment in a new condition. The tests specified in this standard are type tests.
GSO IEC 60255-21-1:2015 history
2015GSO IEC 60255-21-1:2015 Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)