50.97 End of interruption of work - split/merged Jan 20, 2011
CENELEC
CLC/TC 81X Lightning protection
European Norm
WITHDRAWN
EN 62561-4:2011
ABANDON
FprEN 62561-4:2010/FprAA:2010
50.97
End of interruption of work - split/merged
Jan 20, 2011