Coordinated Fire Attack

Coordinated Fire Attack Time Required: Two Hours Materials:    · Transparencies (To be created by user)    · Overhead Projector    · Screen References:    · Engine Company Fireground Operations, Second...


  4. Crack nozzle and bleed air out of line ahead of water

  5. If fire shows at top of door as opened, ceiling should be hit with solid stream to cool and control

      fire gases

  6. Sweep floor with stream to cool burning debris and hot surfaces

  7. Do not open stream until fire can be hit unless firefighter safety is affected

  8. Direct stream at base of fire if localized

  9. As advance made, angle of stream should be lowered and attempt made to hit main body of fire

  10. When main body of fire knocked down, shut down stream and let area to vent

  11. When fire knocked down, shut down

  12. Upon entering an area, which is very, hot and finding no fire, withdraw immediately and check

        area below

  13. When attacking basement fire down interior stairs, solid stream should be used because fog will 

        generate steam

  14. Use of fog should be restricted to unoccupied confined spaces

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

        a. No more than 30-degree angle

        b. Produces reach and fog pattern

  16. If large intense fire encountered, may be necessary to knock down or control fire from outside

        using solid stream before making interior attack

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

        a. No more than 30-degree angle

        b. Produces reach and fog pattern

  16. If large intense fire encountered, may be necessary to knock down or control fire from outside

        using solid stream before making interior attack

C. Where to look

  1. Walls and ceilings

  2. Above fire

  3. Shafts

  4. Cabinets and compartments

  5. Window and door facings

 

VII.Ventilation Activities (1-7)

A. Review latent heat of vaporization to establish the need to ventilate steam

  1. Water boils at 212oF

  2. When raising the temperature of water from 60oF to 212oF, one BTU of heat is absorbed for

       each degree of heat increase - 152oF increase equals 152 BTU's

  3. When water is converted from liquid to steam, it absorbs 970 BTU's. This is seven times greater

       than going from 60oF to 212oF

  4. One cubic foot of water expands to 1700 cubic feet of steam

B. Ventilation is the process of making openings in building or exposure to allow heat and products of combustion to leave building

C. Ventilation contributes directly to accomplishment of basic fire fighting objectives by

  1. Reducing danger to trapped occupants and extends time for rescue operations

  2. Increasing visibility thereby decreasing danger inherent in other fireground operations and increasing

      efficiency

  3. Permitting quicker and easier entry to allow search operations or to advance lines

  4. Minimizing time required to locate seat of fire

  5. Minimizing time required to find areas to which fire has spread

  6. Decreasing or stopping spread of fire

  7. Reducing chance of flashover or backdraft

D. Results depend on size and type of occupancy involved, extent and location of fire, and whether fire is free burning or smoldering

E. When properly performed, ventilation increases effectiveness of most operations

F. Ventilation aids in saving lives

G. General rule is open fire building so that all accumulations of heat and combustion products leave building by natural convection

H. Windows can be opened as the initial means of ventilation - they should not be broken out if possible

I. Mechanical devices such as smoke ejectors and positive pressure blowers cannot be used as a substitute for natural venting techniques

J. Mechanical devices should not be used in partially or completely confined spaces in which there is fire

K. Positive pressure ventilation has potential of moving fire and fire gases

L. Positive pressure ventilation is only effective on structures when doors and windows maintained

M. Fog streams can be used to start venting immediately after fire has been knocked down

 

VIII. Salvage Activities (1-8)