Figure F.3 - Non-Suppression Probability Decision Tree Non- Suppression Probability Value (S) No Automatic 1.0 Detection No Detection in Area Very Large Fire (indoor oil-filled transformers, or energetic electrical fires) 1.0 CO2 0.04 Auto Suppression in Fire Area Fire Halon Systems 0.05 Event Wet Pipe Sprinkler 0.02 Deluge or 0.05 Preaction sprinkler Detection Small Electrical in Area Manual Suppression only 1.0 Fires D≤1 ft (detection must be present in the fire zone) Thermoplastic D>1ft 0.3 Cables Thermoset 0.1 Cables Engines/Heaters Fires D≤2 ft 1.0 Thermoplastic D>2ft 0.3 Cables Thermoset 0.1 Cables Solid/Transients Fires D≤2 ft 1.0 Thermoplastic D>2 ft 0.3 Cables Thermoset 0.1 Cables Large Electrical Fires D≤4.5 ft 1.0 Thermoplastic D>4.5 ft 1.0 Cables Thermoset 0.3 Cables Control Room Thermoplastic Small Electrical Fires 0.1 Cables Thermoset 0.03 Cables Control Room Thermoplastic Large Electrical Fires 0.3 Cables Thermoset Cables 0.1 D, distance between target and fire.
Figure F.3 - Non-Suppression Probability Decision Tree Non- Suppression Probability Value (S) No Automatic Detection No Detection in Area 1.0 Very Large Fire (indoor oil-filled transformers, or energetic electrical fires) 1.0 Auto Suppression in Fire Area CO2 0.04 Fire Event Halon Systems 0.05 Wet Pipe Sprinkler 0.02 Deluge or Preaction sprinkler 0.05 Detection in Area Manual Suppression only (detection must be present in the fire zone) Small Electrical Fires D≤1 ft 1.0 D>1ft Thermoplastic Cables 0.3 Thermoset Cables 0.1 Engines/Heaters Fires D≤2 ft 1.0 D>2ft Thermoplastic Cables 0.3 Thermoset Cables 0.1 Solid/Transients Fires D≤2 ft 1.0 D>2 ft Thermoplastic Cables 0.3 Thermoset Cables 0.1 Large Electrical Fires D≤4.5 ft 1.0 D>4.5 ft Thermoplastic Cables 1.0 Thermoset Cables 0.3 Control Room Small Electrical Fires Thermoplastic Cables 0.1 Thermoset Cables 0.03 Control Room Large Electrical Fires Thermoplastic Cables 0.3 Thermoset Cables 0.1 D, distance between target and fire.
imc0609_app_f.docx