Definition
LH design density is 2.25 mm/min over 84 m² (wet). The reduced demand keeps pump and tank sizing small. NFPA 13 has an equivalent Light Hazard category at 0.10 gpm/ft² over 1500 ft².
Referenced in
- EN 12845
- NFPA 13
Lowest EN 12845 hazard category: schools, prisons, religious buildings.
LH design density is 2.25 mm/min over 84 m² (wet). The reduced demand keeps pump and tank sizing small. NFPA 13 has an equivalent Light Hazard category at 0.10 gpm/ft² over 1500 ft².
Generate a compliant sprinkler layout, run the hydraulic calculation and export a priced bill of materials — checked against EN 12845 and NFPA 13.