Fire protection

Question 1

Purpose of fire protection system:

Answer 1

1. Early detection of fires
2. Extinguish or prevent spread of fires
3. Allow personnel to manually combat
4. Alarms to warn personnel and allow evacuation for impending actuation

Question 2

_______ or ________ between the AEER and MCR will cause a trouble wire open or fire wire open alarm.

Answer 2

Open circuit

Loss of supervisory current

Question 3

Detectors: (3)

Answer 3

1. Product of combustion detectors (ionization)
2. Thermal detectors:
   a. Rate of rise - actuates when rate of rise exceeds 15F/min
   b. Continuous linear thermal sensor - used on transformers
3. Ultraviolet - actuates if UV detected for >3 seconds

Question 4

Fire pumps and auto setpoints:

Answer 4

0A Jockey pump Starts 145 stops 160
0B Jockey pump Starts 140 stops 150
0A motor driven Starts 135 must be manually stopped
0B diesel driven - Starts 125 or loss of power to battery
charger, must be manually stopped

Question 5

Pump power supplies:

Answer 5

0A Jockey 134U
0B Jockey 133U
Electric fire pump 144

Question 6

Dry header/deluge (7)

Answer 6

1. Main turbine oil reservoir
2. Main turbine bearings
3. H2 seal oil skids
4. Transformers (MPT, UAT, SAT)
5. Charcoal filters
6. DG fuel oil storage tank room foam system
7. Containment access facilities

Question 7

CO2 systems:

Answer 7

B AF pump rooms
Day tank rooms
Upper cable spreading room (backup only to halon)
Lower cable spreading room
DG rooms, DG day tank rooms, and DG cable tunnels
SX makeup pump and day tank rooms

Question 8

In plant CO2 suppression supplied from the ________ and has a ______additive to alert operators to leaks.

Answer 8

10 ton CO2 tank

Wintergreen

Question 9

Unit 1 and unit 2 lower cable spreading rooms and diesel cable tunnel require _____ coincidence, one _____ and one _____ to have a co2 actuation.

Answer 9

2/2

heat

smoke

Question 10

CO2 actuations
Auto uses _____
Manual uses______
Manual backup_____

Answer 10

Detectors
PB but only works if power available
Manually actuate EMPCs

Question 11

Master EMPC fails _____ and zone EMPCs fail _____.

Answer 11

Open

Closed

Question 12

Halon subsystem protects _____ and ______.

Requires ____ coincidence, one ____ and one _____.

Answer 12

Upper CSR and Service building QA vault

2/2 detectors (one thermal and one ionization detector)

Question 13

Detector types

Answer 13

Ionization (Particles of Combustion)
Thermal
Ultraviolet

Question 14

Fire Detection Zone 1D-6 has four alarms at Panel 1PM09J

Answer 14

Fire
Trouble
Fire Wire Open
Trouble Wire Open

Question 15

Fire
Fire Wire Open
Trouble
Trouble Wire Open

Answer 15

Fire- detector actuated
Fire wire open - Open circuit or loss of supervisory between AEER and MCR
Trouble - Open circuit or loss of supervisory between field and AEER
Trouble wire - Open circuit or loss of supervisory between AEER and MCR

Question 16

EDG room uses flame detector for ______ and a thermal detector for_____.

Answer 16

Fire indication in MCR

CO2 suppression