Tac Vent Flashcards
Tac vent def:
Planned, systemic and coordinated removal of hot smoke and fire gases and their replacement with fresh air
Never commence if..
Ff teams could be adversely affected
Establishing the Tac V plan
Assess prevailing wind conditions affecting potential vent pathways
Availability of suitable vent in & outlets
Ident vent pathway
Secure vent pathway
Weight of attack
Covering jets
Ff activities
360 survey will provide info relating to L - F - B. What is this?
L life risk (obvious signs)
F fire (location and vented?
B Building (access points, construction, fixed installations)
PPV should improve conditions and reduce temps. If not then…
Fans must be switched off and crews should consider alternative options whilst being protected from fore compartment
Smoke blocker must avoid contact with fire. Temps in excess of
260 will slowly degrade the fabric
Establish a suitable outlet before creating inlet
Yes
PPV. How many and on what
2
SAWD special all wheel drive vehicles
Only used by appropriately trained
Tac vent for
Limit or reduce spread of fore and products…
Improve conditions
Dilute and remove products…
Assist with building evac
Improve working conditions & cas survivability
During Tac vent comms fail
Cease offensive ventilation
Vent pathway must inc
Inlet
Outlet
Enclosed route from inlet to fire
Enclosed route from fire to outlet (to avoid uncontrolled spread of products
Charged covering jets (in & outlet)
Consider all available info to assist
Plans, PIB, TIC, SFSO,MDT, TL, etc
360 with TIC
Inlet size
Twice as large as outlet
Outlet made first followed by inlet
Yes
3 levels of PPV
1 defensive. Post fire, fire out
2 offensive. Fire under control but still burning
3 offensive. On before committing crews, outlets made
