Tactical Ventilation Flashcards
1
Q
Describe inlets and outlets for tactical ventilation
A
- Inlets should be upwind
- Outlet should be down wind
- Inlet should be twice the diameter of outlet to assist create positive pressure
- Outlet MUST be made first.
2
Q
Where should covering jets be placed
A
At both the inlet and outlet
In case of sudden change in wind direction
3
Q
What is the minimum weight of attack for ffing when considering tactical ventilation
A
45mm
Branch at 230l per minute
4
Q
When can ffing and rescue teams be committed to the ventilation pathway
A
Should only be committed to the ventilation pathway once it is secured, stable and working effectively
5
Q
What are the 3 stages of Positive Pressure Ventilation
A
- Stage 1. Defensive= after fire is out. Improves conditions for damping down & FIU
- Stage 2 Offensive= fire under control.Outlet, covering jets, leads to better conditions for S&R
- Stage3 Offensive= before BA committed. Improve conditions for ffing S&R. Less water as less gasses to cool.