FIRE SERVICE SYSTEM Flashcards
What are the required sources for the Fire Service System per AP-1038?
River, CW flume, and Altitude Tank (FS-T-1), with each source having >90K gallons.
How many pumps are required for the Fire Service System per AP-1038?
Two pumps.
What is the power source for FS-P-4 Jockey Pump?
1C ESV MCC.
At what pressure does FS-P-4 Jockey Pump turn ON?
108#.
At what pressure does FS-P-4 Jockey Pump TRIP?
125#.
What is the purpose of FS-P-4 Jockey Pump?
Maintains Fire Service system pressure due to ~30gpm leakage.
What triggers FS-P-2 IPSH Motor Driven pump to auto start?
90# header pressure or any deluge actuation (auto or manual).
What happens if FS-P-2’s breaker is closed without the other breaker racked in?
The pump auto starts.
What triggers FS-P-3 IPSH Diesel pump to auto start?
80# header pressure, any deluge actuation, or loss of 1E 4kV Bus after a 30-second time delay.
What triggers FS-P-1 CWPH Diesel pump to auto start?
70# header pressure or loss of 1A 4kV Bus after a 10-second time delay.
What is the required action if the fire suppression water system is inoperable?
Establish a backup within 24 hours or be in HSD in 1 hour and CSD in 30 hours.
What is the difference between wet pipe sprinklers and deluge systems?
Wet pipe sprinklers flow water only from affected heads, while deluge systems open all heads.
What is the supervisory nitrogen pressure in the NDCT deluge system pilot lines?
30#.
What triggers the automatic pre-action system?
One fire alarm in adjacent groups OR one faulted alarm and one real alarm, AND loss of supervisory air due to fusible link melt.
What is the minimum supervisory air pressure required for the automatic pre-action system?
≥24oz/in.
What is required if the automatic pre-action system is inoperable?
Establish a continuous fire watch within 1 hour per AP-1038.
What triggers the CARDOX CO2 fire suppression system?
Any one of four HAD devices at 140°F after a 30-second time delay.
What is the minimum operability requirement for CARDOX?
8500lbm CO2 (8.5 ft in tank) at a minimum pressure of 285#.
What triggers the Halon system?
UV detectors or explosion (impact) detectors, but NOT accelerometers.
What happens when Halon actuates?
All three deluge systems auto start FS-P-2/3.
What is the design basis flow rate for the fire suppression system?
2575gpm for remote deluge and 1000gpm for hose use.
Does FS-P-1 auto start on deluge actuation?
No, FS-P-1 does not auto start on deluge actuation.
What is the response time requirement for fire brigade members?
Less than 10 minutes, and they must stay in the protected area (PA).
What happens if one preaction detector alarms and another is removed?
The multimatic valve actuates, but no water flows.
