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IEC 60255-21-2 Ed. 1.0 b:1988
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests
This standard includes two types of tests: -the shock test (on energized and non-energized specimen), -the bump test (on non-energized specimen). These requirements are applicable only to measuring relays and protection equipment in a new condition.
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International Electrotechnical Commission [iec]