
Electrical relays Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests
出版:International Electrotechnical Committee

专家解读视频
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.
SS IEC 255:1991 - Identical
UNE EN 60255-21-2:1996 - Identical
SS EN 60255-21-2 Ed. 1 (1996) - Identical
PN EN 60255-21-2:2000 - Identical
I.S. EN 60255-21-2:1999 - Identical
NF EN 60255 21-2:1998 - Identical
GB/T 14537-1993 - Identical
DIN IEC 60255-21-2 (1991-02) - Identical
DIN EN 60255-21-2 (1996-05) - Identical
BS EN 60255-21-2:1996 - Equivalent
NEN 10255-21-2:1996 - Identical
SN EN 60255-21-2:1995 - Identical
CEI EN 60255-21-2 Ed. 1 (1997) - Identical
BS 142-1.5.2:1989 - Identical
ONORM OVE EN 60255-21-2:1996 - Identical