What is IEC 255-21-1?
What is IEC 255-21-1? IEC-255-21-1. ›. Electrical relays – Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment – Section One: Vibration tests (sinusoidal) IEC-255-21-1 – 1ST EDITION – CURRENT. What is the IEC 62368-1 standard? This standard was prepared as Standard CIE S 009:2002 by the International Commission on […]