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Flashcards in Tactical Ventilation Deck (5)
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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.