BS EN 60255-21-2:1996(1999) Electrical relays — Part 21 : Vibration, shock, bump and seismic tests on measuring relays and protection equipment — Section 2 : Shock and bump tests
1989BS EN 60255-21-2:1996 Electrical relays. Vibration, shock, bump and seismic tests on measuring relays and protection equipment. Shock and bump tests
1989BS EN 60255-21-2:1989 Electrical relays - Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Shock and bump tests