Flashcards in Fixed installations Deck (20)
What is a fixed installation?
Firefighting equipment that forms a permanent feature in a building.
What are the most common fixed installations? (11)
Automatic fire alarms (AFA)
Water spray projectors.
Dry rising mains.
Wet rising mains.
What are the three functions of the AFA?
To detect a fire.
To raise an alarm and indicate the whereabouts.
To raise an alarm at the control panel.
Where is a control panel normally located?
Near the entrance to the building.
What are the three types of sprinkler?
Wet system. (filled with water)
Alternate system (wet or dry).
What are the three functions of a sprinkler?
Detect the fire.
Attack the fire.
Give an audible warning.
Why might a crew member be sent to the main stop valve of a building with a sprinkler system?
Ensure that the valve is not closed (except on the orders of the IC).
Open the valve, on the orders of the IC.
When would a water spray projector system be used?
To protect equipment from oil fires.
What are the advantages of a rising main?
It reduces the amount of hose.
Reduced frictional loss.
less equipment needed.
Staircase clear of hose lines.
Reduced effort required to supply water to the firefighting jet.
What is a rising main?
A vertical pipe, with a fire service inlet, and outlets at various levels.
What are the two types of rising main?
Wet and Dry
What coupling do rising mains have?
65mm female instantaneous outlet
Risers must be installed on buildings above____
What pressure should a dry riser be charged to?
Wet risers are found in all buildings above ____m.
As of 2006, all buildings over ____ must have a wet riser.
Wet riser outlets normally supply between ____ and ____ bar pressure.
4 and 5 bar pressure.
HOWEVER 8 bar is recommended.
What is the main advantage of using a fire lift?
Firefighters can reach upper floors quickly, without exerting undue stress.
What will the operation of the fire lift do?
Deactivate each landing call button.
Return the lift to ground level.
Allow control via the lift buttons.