Fire - Water

Question 1

Purpose of the Water FP System?

Answer 1

TO protect equipment and personnel

Question 2

Where is the U2/3 DFP?

Answer 2

2/3 Cribhouse

Question 3

What is the rating for the 2/3 DFP?

Answer 3

3000gpm at 165psig

Question 4

What is the autostart pressure for the 2/3 DFP?

Answer 4

80psig sense at DFP discharge

Question 5

What trips are present for the 2/3DFP?

Answer 5

Overspeed trip which is never bypassed

Low Oil Pressure trip which is bypassed on low pressure start

Question 6

What is the capacity of the 2/3DFP Day Tank?

Answer 6

275gallons - allows for 8 hours operation; refilled by U3 EDG Fuel Oil Transfer Pump (THIS WILL INOP 3EDG)

Question 7

What provides starting power to 2/3DFP?

Answer 7

Own batteries

Question 8

What provides charging power to 2/3DFP batteries?

Answer 8

Battery Charger fed from MCC 20-2

Question 9

What are the 3 positions for the 2/3 DFP controller?

Answer 9

OFF - MANUAL - AUTO

Question 10

In what positions will the DFP auto start?

Answer 10

Manual or Auto

Question 11

How is the 2/3 DFP secured?

Answer 11

Only manual at DFP Panel?

Question 12

How many times is the 2/3DFP designed to attempt to start?

Answer 12

up to 5 additional crank and reset cycles (Up to 165 seconds)

Question 13

What is the design capacity of the U1 DFP?

Answer 13

2500gpm at 145psig

Question 14

What is the autostart setpoint for the U1 DFP?

Answer 14

Pressure below 75psig.

Question 15

What auto trip exists on U1 DFP?

Answer 15

Overspeed trip which is never bypassed

Question 16

What is capacity fo the U1 DFP Day Tank?

Answer 16

500 gallons providing 8 hours diesel operation

Question 17

Where is U1 DFP Battery fed from?

Answer 17

U1 RLC 17L

Question 18

What autostarts U1 DFP?

Answer 18

Low header pressure, loss of AC feed to charger

Question 19

What are 5 positions for U1 DFP switch

Answer 19

Off-Man 1-Man2-Test-auto

Question 20

How is U1 DFP secured?

Answer 20

Locally ONLY

Question 21

If Both DFPs are inoperable, what must be done?

Answer 21

Returned to service or supply backup fire water supply

Question 22

What is the autostart setpoint for U1 Screenwash pump?

Answer 22

Fire Header decreases to 70psig

Question 23

What is power source for U1 Screenwash pump?

Answer 23

PC5

Question 24

What are the relief valve setpoints for U1 and U2/3 DFPs?

Answer 24

150psig

Question 25

How is the 2/3 DFP discharge valve operated?

Answer 25

Electrically disconnected in the open position. FIRE CODE DOES NOT ALLOW AO OR MO valves. would be powered by 250vdc TB2

Question 26

What provides normal keepfill for FP?

Answer 26

Service Water

Question 27

How do the Wet Fire Protection Pipes work?

Answer 27

Filled with water all the time, fusible link on nozzle breaks and allows water flow.

Question 28

What areas are protected by Wet Piping?

Answer 28

``` Most normally accessible plant areas not covered by gaseous (water harmful) or heavy oil areas: EDG rooms Condensate Pmps CCSW pmps Clean/Dirty Oil Rooms HeaterBays 538ft ceiling RFP MG Sets CH Trackway SBO ```

Question 29

What is a Deluge Piping System?

Answer 29

Not normally filled, uses spray nozzles. | Deluge valve tripped electrically from signal.

Question 30

What electrical signal trips a deluge valve?

Answer 30

Xfrmr Differential current or sudden pressure heat detector push button pull station

Question 31

What areas use Deluge Systems?

Answer 31

``` Turb Oil H2 Seal Oil 2/3 DFP U2& 3 Transformers CH Basement and 2/3 DGCWPs ```

Question 32

What is a Pre-action piping system?

Answer 32

Not normally filled and uses closed sprinkler heads and deluge valves; used in areas that may be exposed to below freezing temps. signal opens deluge valve, but will not dischage unless fusible link broken

Question 33

What areas have pre-action piping systems?

Answer 33

``` Unit HPCI Rooms Tb ground floor outside AEER U2 SA & IAC Area TB EHC Area U2 & 3 RB Hatchways U2TB Cable concentration area. ```

Question 34

What are autostart setpoints for DFPs?

Answer 34

U2/3 - 80psig U1 - 75psig (Also loss of AC or 1 DC Feed) Screenwash - 70psig