EN 1995-1-1 - Table 2.1 - Load-duration classes
Load duration class	Order of accumulated duration of characteristic load
Permanent	more than 10 years
Long-term	6 months - 10 years
Medium-term	1 week - 6 months
Short-term	less than one week
Instantaneous
EN 1995-1-1 - Table 2.2 - Examples of load-duration assignment
Load duration class	Examples of loading
Permanent	self-weight
Long-term	storage
Medium-term	imposed floor load, snow
Short-term	snow, wind
Instantaneous	wind, accidental