IEC: 255 - 21 - 1 - 1988; Electrical relays Part21 Vibration, shock, bump and seismic tests on mesasuring relays and protection equipment Sec.1 Vibration tests (sinusoidal)

IEC: 255 - 21 - 1 - 1988; Electrical relays Part21 Vibration, shock, bump and seismic tests on mesasuring relays and protection equipment Sec.1 Vibration tests (sinusoidal) - Geneva IEC 1988 - 23p

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