Buildings with a very high level of need for protection, known as Lightning Protecion Level 1 – LPL I (Imp=100 kA)
Hospitals, banks, transmission points for GSM/BTS, water stations, power plants, aerodrome control towers, explosion prone buildings
Bigger industrial buildings, buildings with particular importance
S45, S55, S50-50, S50-3, SB*, SBN80, SBN100, S100, SBN25