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...


• Combination attack

• Used when entire area has high heat level

• Consists of applying water to fire and area above fire

• Pattern includes the T, Z, and O

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Solid Stream Versus Fog Stream

• For safest and most effective operation where people in area, solid stream or fog nozzle on straight stream position should be used

• Aid rescue

• Reduce steam production

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• Use of fog should be restricted to unoccupied confined spaces

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• When building adequately ventilated opposite direction from fog nozzle, fog stream can be used

• No more than 30-degree angle

• Produces reach and fog pattern

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Effective Stream Operation

• Use solid stream nozzles or set fog nozzles on straight stream setting

• Stay low upon entering fire area to let heat and gases vent before moving in

• Before door to fire area opened, all firefighters should be positioned on same side of entrance and remain low

• Crack nozzle and bleed air out of line ahead of water

• If fire shows at top of door as opened, ceiling should be hit with solid or straight stream to cool and control fire gases

• Sweep floor with stream to cool burning debris and hot surfaces

• Do not open stream until fire can be hit unless firefighter safety involved

• Direct the stream at the base of fire if localized

• As the advance is made, the angle of stream should be lowered and an attempt made to hit the main body of fire

• When the main body of fire knocked down, shut down the stream and let the area vent

• When the fire is knocked down, shut down the nozzle

• Upon entering an area which is very hot and finding no fire, withdraw immediately and check the area below

• When attacking basement fire down interior stairs, straight stream should be used because fog will generate steam

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Attack Line Practical

• Advance an uncharged 1-1/2-inch, 1-3/4-inch, or 2-inch line up an interior stairs to a location above the ground floor.

• Advance a charged 1-1/2-inch, 1-3/4-inch, or 2-inch line up an interior stairs to a location above the ground floor.

• Advance a charged 1-1/2-inch, 1-3/4-inch, or 2-inch line down an interior stairs to a location below the entry floor.

• Advance an uncharged 1-1/2-inch, 1-3/4-inch, or 2-inch line up a ladder to a floor above the ground floor.

• Advance a charged 1-1/2-inch, 1-3/4-inch, or 2-inch line up a ladder to a floor above the ground floor.

• Advance an uncharged 1-1/2-inch, 1-3/4-inch, or 2-inch line to the floor below the fire floor, connect it to the standpipe connection, charge it, and advance it to the fire floor. After charged, extend the line to a higher floor.

• Set up and establish a water supply from the attack pumper to a fire protective system using multiple lines of 2-1/2-inch or 3-inch hose.

• Repack the attack line in a flat and minuteman load.

• Repack a standpipe pack.

 

Summary

Review:

Firefighter Pre-Basic VI

• Introduction to Attack Lines

• Advancing Attack Lines

• Fire Attack