Firefighter Pre-Basic VI

The firefighter will demonstrate a general understanding of the various methods of advancing an attack line into a structure and the basic principles of fire attack. Session Reference: 6 Topic: Firefighter Pre-Basic VI Level of Instruction...


• Attack the fire as described in the next section

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Advancing a Charged Line up a Ladder

• Place the needed hose at the base of the ladder

• The first firefighter ascending the ladder will take the nozzle in one hand while holding onto the ladder beam with the other hand

• The firefighter will proceed up the ladder

• The next firefighter will be approximately 15 feet behind the first firefighter holding onto the hose with one hand and the ladder beam with the other hand

• Additional firefighters will be positioned on the ladder as needed every 15 feet

• Once the first firefighter reaches the top of the ladder, they will enter the opening or roof with the hoseline

• The second firefighter will proceed to the top of the ladder, take a leg lock, advance any additional hose that is needed, and them proceed to assist the first firefighter

• Other firefighters will take leg locks on the ladder and hand advance hose

• Once adequate hose has been advanced, the other firefighters on the ladder will exit and the line will be charged

• A firefighter will go up the ladder and, using a rope hose tool, secure the hose the center of the ladder at each ladder section

• Attack the fire as described in the next section

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Standpipe Operations

• Equipment

• 150 feet of 1-1/2-inch or 1-3/4-inch hose

• Nozzle

• Gated wye

• Pipe wrench in the event the hand wheel on outlet missing

• Secondary standpipe pack consisting of 2-inch or 2-1/2-inch hose

• Short section (5 feet) of 2-1/2-inch or 3-inch hose to go between outlet and gated wye

• Gated wye may be equipped with 1-1/2-inch to 2-1/2-inch increaser to permit connection of larger attack hose

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• Beginning attack operations

• Connect to outlet in stairwell on floor below the fire floor

• Pull excess hose up stairway toward next floor before charging

• Be careful not to impede evacuation or allow great volumes of smoke in stairway

• Attack the fire as described in the next section

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• Fire department siamese

• Water should be pumped into any standpipe system being used for firefighting

• At least two lines should be connected

• First line to left intake and charged

• Second line to right intake

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• If supply line cannot be connected to siamese, water can be supplied to system through outlet on first floor

• Pumper should be positioned within 50 feet

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Master Stream Operations

• A master stream device is a device that flow at least 350 GPM through either an apparatus mounted appliance, a ground mounted appliance, or an elevated appliance

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• Water supply for master streams

• Pumper at water source sending water to pumper at fire

• Adequate number of supply lines laid between pumpers and from pumper at fire to master stream device

• No more than 100 feet of hose between pumper at fire and master stream device

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• Use of master stream devices

• Fire attack

• Back-up

• Exposure protection

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• Setting up master stream

• Requires at least two hoselines at least 3 inches in diameter

• Hoselines should be connected to the intact siamese

 

III. FIRE ATTACK (6-3)

Initial Attack

• Direct attack

• Used for smaller fires or lower heat levels in the room

• Water is applied directly to fire rather than area above fire

• Narrow fog or straight stream used

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• Indirect attack - fog stream used to attack fire from outside building

• Should not be used to fight fire in occupied building

• Quick interior attack should not be made in building undergoing demolition, abandoned, had previous fires or under construction

• If large intense fire encountered, may be necessary to knock down or control fire from outside using solid stream before making interior attack

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