fixed fire fighting Flashcards
what tanks feed the AFFF system
No4 reserve feed tank/ AFFF tank
End zones of AFFF
DG room, port and stbd engine room, naval stores lub oil module, thrust block flat
how many litres in the AFFF tank
455 litres
system code for AFFF
FFS
(for fuck sake)
how long can AFFF be used for in any single zone
maximum of ten minutes
spray will stop after 3 mins
Will need to be re-energised by the EP in mroom if required
how many zones can be operated simultaneously on AFFF
2 zones
AFFF is operated from where remotely and locally
remotely - EP panel in manoeuvring room
local - hydel valve in manoeuvring room flat
what is the downside of the AFFF system
AFFF is corrosive if discharged bilge must be flushed and pumped out
Take it feed from number 4 reserve feed tank so if we need to use ECCS we lose AFFF
isolating valve of AFFF
FFS 401
88 bulkhead
mroom flat
system code of water fog spray system
SWS
supply tank for water fog system
fresh water spray tank
end zones of water fog system
WSC small/large nozzles
WSC water fog system is operated from where locally and remotely
remotely - SCC IPB
locally - electrolyser space , local hand wheel SWS 605
IPB in WSC fwd and aft , IPB 2 deck and 3 deck
supply tank for FWD ESC AND WSC PYRO LOCKERS
Fresh water spary tank
Isolation of the fwd esc pyro lockers
SWS 5680 , operated from the sonar cabinet space , above the door to the control room
Isolating valve for WSC pyro lockers
SWS 5672
Fwd battery switchboard room
Supply tank for the watermist system
Watermist tank / Nitrogen
isolating valve for watermist
WFF 401
tech office
End zones of watermist
Everywhere aft except manoeuvring room
Supply tank of the fwd escape dry riser
PWT
Supply tank of aft pyro tank lockers
PWT
Isolating valve of aft pyro lockers
WS 1414/WS 283
Outside tech off ( mroom flat)
supply tank for the CFHR
PWT
How long is a CFHR
30 meters
system code of CFHR
WS
How many sets of CFHR
5 sets of 2
3 fwd (1 deck aft, 2 deck opposite pantry, 3 deck lobby)
2 aft ( aft escape plt, mroom flat)
how do we energise aft CRHR
by opening WS623 as the allows the water pwt to be sent back aft
Open from LP Blower space
SFS 90
3 on board
90 litters of afff
1 fwd because it can reach everywhere fwd
2 aft (switchboard room and aft escape platform near stairs )
master valve for fwd dry riser
is above CFHR on two deck
the two areas we use dry riser ?
1- fwd escape
2- HPDHR space
