Fire Protection Flashcards
What are the Fire Pump Auto Starts?
Electric Fire Pump - 140# for ≥ 2 Sec
East Diesel FW pump - 130# for ≥ 15 secs
West Diesel FW Pump - 120# for ≥ 25 secs
What is the Diesel Fire Pump Trip?
Engine overspeed @ 2112 RPM
For any given fire, what are the most fire pumps you should expect to see running?
2 Pumps max for a Main Transformer Fire
- Electric FW Pump and East Diesel FW Pump
What is the normal power supply to the fire pump house?
Transformer 7 - Norm
Livingston Rd - Alternate
Can you parallel the two supply power sources to the fire pump house?
No, you cannot parallel them due to the two sources being out of phase
Which unit can manually open ZMO-10 and ZMO-20?
Either unit, independently
Which unit is required to manually close ZMO-10 and ZMO-20?
Both units are required to close ZMO-10/20 after them being open
What is the TRM limit for gallons in the Fire Water Tanks?
2 Fire Water Tanks with a min of 565,000 gal each
What is the TRM for the Diesel FW Pump Fuel oil tanks?
160 gal each for an 8hr operation
Which fans will trip on high temp (400°F) on thermistor string?
AFX
CPR
CIPX
TSC Filtration Unit
Which fans have charcoal filter fire water protection?
AES AFX CPR CIPX CRP TSC Filtration SATFU
ZMO-10/20 will auto open upon receipt of any of the following fire signals from these areas
- Drumming area
- New fuel receiving area
- Any charcoal filter supplied by fire water system
- Push button for Auxiliary building hose reels
Will general aux building elevation area fire detectors open ZMO-10/20?
No, detectors only send an alarm.
What does the Fire Siren Enable switch do?
It turns the Fire Logic System OFF and allows reset of the alarms after the local Deluge, CO2 or Fire Detection system is reset
What is the Fire System Logic Reset button is used for?
To restore fire system to normal conditions once:
- clears drop 41- fire alarm
- Both Units have to press their own switch at the same time to reset
Tech Spec wise (TRO 8.7.5), what is required for an Operable fire system?
- 3 pumps with 2500gpm capability
- 2 fire water tanks, each with a minimum usable volume of 565,000 gallons
- Intact system
Per TRO 8.7.6 A, what is done if one ore more sprinkler system is inoperable in areas WITH fire detection:
WITHIN 1 hr:
Verify ≥ one circuit of fire detection instrumentation (electric or pneumatic) in Table 8.7.4-1 for the affected area is OPERABLE.
Per TRO 8.7.6 B, with One or more Sprinkler Systems inoperable in areas WITH other automatic suppression systems(s) OPERABLE,
IMMEDIATELY:
Verify automatic
suppression system
OPERABLE for affected
area.
Per TRO 8.7.6 C, if the required action and associated completion time of Condition A or Condition B is NOT met,
WITHIN 1 hr:
Establish a continuous fire watch patrol of affected area.
OR
NOTE: Only applicable for high radiation areas.
Continuously monitor closed circuit television of affected areas and log results.
What causes the charcoal in the charcoal filters to catch on fire/heat up?
It reacts with the iodine its filtering out
What areas do each of the CO2 Tanks Protect?
7.5 Ton and 17 Ton
71/2 Ton - Old Office Building and Generator Degas 17 Ton Areas: - 4KV Room - EDG Rooms - EDG Fuel Oil Pump Room - Aux Cable Vault - CRCV - Switchgear room cable vault - Quads 1-4 - MT Lube Oil Tank Rooms - Lube Oil Tank Rooms - CRD room - Hose Reels
How does the CO2 Master Valve fail on loss of 250V DC?
Fails open
How does the CO2 Pilot Valve fail on loss of 250V DC?
Fails open
How does the CO2 Master Valve fail on loss of pilot pressure?
Fails closed
With a fire in the U2 CRCV, what automatically actuates for fire protection?
Halon and Fire Water Sprinkler
CO2 is manually actuated
With a fire in the U1 CRCV, what automatically actuates for fire protection?
Halon only
CO2 is manually actuated.
What must you manually actuate for a CRCV fire to both units?
CO2
Where are the Fire Water pumps shutdown at?
Locally at their control panels
What must you do prior to entering the CRCV?
Manually isolate CO2
If you manually operate local selector valves, what will that prevent from happening?
Defeats alarms and bypasses all automatic functions until its reset
Is Turbine lagging fire protection automatic?
No, fire has to be locally verified and manually actuated from control room
When does the 17 ton compressor lock out and how is it reset?
Locks out on a load shed and it has to be reset in control room via reset push button
If Halon is actuated at the cylinder manually, will the extended Halon bottles actuate?
No, they will not
If a Diesel fire pump won’t start on the first try, what happens next?
It will keep trying to start, and Engine locks out if it doesn’t start within 6 cranking cycles. (15-sec ea)
What is the purpose of the INDIVIDUAL ISOLATION SWITCH?
Prevents all auto actuations of CO2 to a protected area, but still allows manual actuation
What happens on a temp Pre-alarm in the charcoal bed?
CR gets an alarm and procedure directs opening of FP Isolation vlv
Which CO2 FP system valves normally function to admit liquid CO2 to a given area
Selector Valve
What is the bases for the requirement that the CO2 storage tank level is equal to or greater than 60.4% and pressure is equal to or greater than 285 psig
The minimum quantity of CO2 must be adequate for two complete timed discharges into the area which requires the most CO2
The Master Valve Isolation valve is _________ and is normally__________.
Manual and Open
The CO2 Vaporizers are used to remove _________ in _________ Unit
Hydrogen or Air in Either Unit
The CO2 Selector Valve solenoid valve is normally ________ and ________.
Closed and De-energized
