Compartment Firefighting 793 Flashcards
What are the hazards associated with compartment firefighting
Backdraft Explosive atmosphere/fire gas explosion. Flashover Steam Uncontrolled ventilation High temperatures Structural deterioration Exposed utilities Loss of communication
What is the minimum size hose and flow rate
45mm 230LPM
What hose should the second BA team have
Equal to or greater set at 230LPM and at least one hose length longer
What is the principal of the second firefighting jet
To protect the access and egress and remain in place at all times whilst firefighting commenced
What is and where should a covering jet be used
A covering jet is used to cool unburnt gases outside a compartment and should be directed above the opening on a suitable surface
What should be conduct prior to any compartment firefighting
360*
What info is gathered on a 360*
Life risk Extent of fire Smoke behaviour Entry exit points Potential ventilation outlets
What info should the IC consider before commencing compartment firefighting
Number and location of persons Location and size of fire Nature and size of compartment Construction Contents Potential for fire growth If the compartment is vented
What sources of info are available to the IC
MDT AFA panel PIB Responsible person Building signage
What size hose should the main hose line be made up of if greater than 3 lengths
70nm from the pump to reduce frictional loss and 2 lengths 45mm the the branch
What can BA teams use to help locate the seat of fire
TIC
What should a BA team do if they experience a sudden loss of water
Withdraw immediately
