Fire fighting techniques Flashcards
Branch settings – Flow rate
Delta Attack 400-S-Pro – 130, 230, 300 or 400 lpm
Standard setting for Delta Branch
230 - LPM
Standard setting for Hose reel Branch
110 - LPM
Branch Settings Depend on a number of factors:
- The size of the compartment
- The depth of the penetration required
- The size of the fire
What Length of pulsation should be used:
Dependent on the size of the fire
Dependent on the size of the compartment
Explain Direct
Narrow cone used directly onto the seat of the fire.
Can be used from inside or outside of fire compartment.
ADVANTAGES for Direct
Extinguishes the fire directly.
Compartment entry not necessarily required
DISADVANTAGES
of Direct
Can produce large quantities of steam which may lower the neutral plane.
Entrains air into the compartment intensifying the fire if not used correctly
The Advantages
Painting the fire
Prevents flammable gases being produced.
Extinguishes fire directly
The Disadvantages Painting the fire
Firefighters need to be close to the object to paint it
Explain Indirect application
The tactic of applying water indirectly by deflecting a solid jet of water onto the fire via the walls or ceiling
ADVANTAGES for Indirect application
Extinguishes the fire.
Cools structure of the compartment.
Compartment entry not necessarily required
DISADVANTAGES
of Indirect application
Worsens conditions for firefighters and casualties.
Neutral plane will descend
Pulse Spray is the branch technique used in London Fire Brigade for what purpose
compartment fires
Where did pulse spray originate from
It is originally of Swedish origin and was first taught in the UK to Devon Fire and Rescue Service.