Chapter 15 Flashcards
High-rise firefighting
What type of building construction is less likely to spread beyond the room and floor of origin then our fires in short buildings making them actually safer than all other types of buildings we respond to
Type one high-rise buildings
NFPA report on high-rise building fires breaks down high-rise buildings into six property types which are
Apartments
Hotels
Dorms
Offices
Hospitals/ nursing home
Other
Regardless of building height, the leading cause of fires IN all property classes IS ?
Fires IN kitchen, cooking areas with cooking equipment ( food on the stove
The primary factor that makes fighting fires in skyscrapers so challenging is
Their height
Most of the fires in high-rise buildings according to NFPA 2016 report begin on floors no higher than
The sixth floor P. 466
Ladder companies are traditionally assigned TO DO WHAT ?
Recon
Lobby control
Elevators
Forcible entry
Search-evacuate-rescue
Ventilation
occupant management
In compartments with office furnishings and computer equipment total room involvement has occurred within within ‘’ ignition
Seven minutes
SER stands for
Search
Evacuate
Rescue
Major issues that firefighter face during fires are
Heat
Elevation
Water
Parable air
Wind P. 467
A high-rise acronym that exists in the early 1970s is worth reviving for the newest generation of firefighters. What is it?
Hazards
IN
Greater
Heights
Reach is beyond capabilities of Ariel apparatus
Interior fire attack is essential on upper floors
Significant smoke and stack effect potential is present
Evacuation time required to move. All building. Occupants is unreasonable and impractical.
The fire attack is based on what
Building design
Number of occupants
Number stairways
Their configuration
Proximity to the seat of the fire
What is the secret to success in fighting fires in high-rise buildings?
Incident planning
Consulting with the building or maintenance engineer
Developing a pre-fire plan
Following incident commands, high-rise fire checklist P. 468
High-rise buildings are rarely left unattended if the fire safety Director or building engineer is on site that person needs to have building and system plans already and
Stay glued to the IC AT command post
High-rise buildings fallinto three groups
High-rise structures built before 1945
High-rise structures built between 1945 and 1968 when the post World War II economy, force change in the building industry
High-rise structures built after 1968
Which category of high-rise group does the following fall into?
Heavyweight building 20 to 30 pounds per cubic foot
Structural steel components in case in concrete
Exterior walls are Masonary
Floors are reinforced concrete
Lack of plenum space
Exterior walls are tied to the floor
Steam heat, lack of HVAC
Core concrete was not used
Most exterior windows can be opened
High-rise structure built before 1945
Which category of high-rise group does the following fall into?
Medium weight 10 to 20 pounds per cubic foot
Fire and smoke tower
Many exterior windows can be opened
Between 1945 and 1968
Which category of high-rise group does the following fall into?
Lightweight building 8 to 10 pounds per cubic foot
Lack of compartmentalization
Wide open floor space
Spray fireproofing for steel structural members
Exterior and curtain walls are a combination of glass and steel
Exterior windows do not open
Open plunujms with lack of fire stops
Q use for floor
Center core construction used extensively
Built after 1968
What type of construction is used in in the majority of super high-rise buildings.. constructed of reinforced concrete. It is a giant vertical shaft that runs the entire height of the skyscraper contains elevators and closed stairways standpipes sprinkler system, piping power, water, and plumbing..
Center core construction
What design construction allows for 360° view with on obstructed floor space, the biggest problem with this design is that Fire can also whip around 360° and flank, the fire attack team.
Center core design construction
What construction design puts the giant vertical shaft with all major building opponents on one side of the building. fire attack strategy in this type of construction would be a direct formal attack
Side core design p. 469
Fire attack strategy in a center core design would have to be a
pincer or flanking attack using a second attack team accessing the fire floor from the same or second stairway to confine the fire and prevented from circling around o, 469
Non-core design is found in what type of buildings
Low rise buildings and older high-rise buildings and it will require standpipe operation above the third floor
Floor area or square footage in high-rise buildings can range between ‘’’ .. how many gallons per minute of water would we needed to control this type of square footage?
10,000 ft.² in wall over 300,000 ft.²
6000 to 10,000 gallons per minute to control
Large fires instructions with many square feet per four may end up being what type of firefight
A controlled burn
High-rise buildings also fall into three use categories
Commercial
Residential
Mixed use
Mixed use high-rises can have
Residential units on the upper floors while having commercial use on the main levels of the building
What is the space between the structural ceiling and the drop ceiling of a floor/ceiling assembly the underside of the floor above used to house communication cables for telephones and computer networking use for HVAC work
plenum
Many practices still recommend completely shutting down the HVAC system during
A fire alarm so fresh air intakes don’t provide additional oxygen to the fire p. 470
When the movement of air is intensified, the fire shutting down the HVAC system is
The correct action to take
Shutting down HVAC systems, they also eliminate the ability of the system to
Pressurize elevator shaft, stairwells, and floors above and below the fire something that is essential for high-rise fireplace because it prevents smoke from entering these areas
In high-rise, modern construction elevator, shafts and floors above, and below fires are now ‘’
Pressurized
What system is the most effective way to prevent control or suppress a major fire in a high-rise
Automatic sprinkler system p. 471
A flow requirement is based on the
Hazard and fuel load of what is expected to be in the design fire area
Fire sprinklers do not shut off once the fire has burned out they have to be
Manually shut off p. 472
NFPA ‘’ provides minimal requirements for the design of a standpipe system, which is determined by the height of the building in the floor area of which story in the occupy classification egress system, design, flow rate and residual pressure and distance of hose connections from the source of the water supply
14
Early high-rise buildings used ‘’ standpipes newer buildings now ‘’
4 inch, 6 inch
Standpipes and hoses are classified by intenders use :
What are they?
Class one- firefighter use
Class two- tenant use
Class three- both. p. 473
Gold construction before 1993 have minimum flow rates of
500 gallons per minute at 65 psi
All Newark construction have a minimum pressure of ‘’ but reduce GPM to’’ outlets. This allows for more maneuverable hand lines.
125 psi
300 gallons per minute
Where a static pressure of a 2 1/2 half inch hose connection exceeds 175 psi what ‘’ must be installed to limit the static and residual pressure at the hose connection to no more than 175 psi
Listed pressure regulating device ( prv)
PRV is designed to
Reduce the downstream water pressure under both flows residual and static
For class one, the minimum flow rate of remote standpipes is
500 gpm thur 2 2.5 inch outlets
A minimum flow rate for additional standpipes is ‘’ power stamp Pipe for buildings with floors that do not exceed 80,000 ft.² per floor
250 gpm
Prop building at exceed 80,000 ft.² per floor. The minimum flow rate for additional stamp pipes is. ‘’ the second Pipe and. ‘’ for the third stamp if additional flow is required for an upright building
500 gpm , 250 gpm
The maximum standpipe flow rate are ‘’ for buildings that are fully sprinkler and ‘’ for buildings that are not sprinkler
1000 gpm
1250 gpm
Class two systems the maximum blower required from a 2 1/2 inch hose connection is
250 GPM
Based on the travel distance required to cover all portions of each floor level of the building, and starting from the hose connections to travel distance shall be ‘’ sprinkler buildings after 2005
200 feet
The traveling distance shall be ‘’ for non-sprinkler of buildings but how much should be a minimum to start any fire attack?
130 feet
200 feet
Connection should be provided at the ‘’ landing of the stairway with roof access or it should be provided on the roof
Highest
In stairways without roof access, there may be a hose connection at the top of the standpipe on
The roof p. 474
Firefighters working together can keep track of each each other by
Site
Touch
Voice
Radio
Or remaining contact
Your PP has a threshold rating of ‘’ for how long?
572°
15-30 seconds
Flash over and post flash over sailing temperatures can be up to ‘’
2000°
Floor temperatures when the floor is on fire can be around
500°
What is considered the weakest component of firefighter protection?
The lens and the face piece of SCBA
Glass transitions or softens of the poly carbonated lens occurs between ‘’ and melting and lens occurs between
293° and 302°
419° and 640°
Maximum exterior lens temperature where as high as
572°p . 475
Firefighters, greatest adversary and high-rise building fire is
Heat
PA 1500 states that crew should not be permitted to use more than’’ before being rotated through rehab
To SCBA’s
Keep in mind that every 50 foot section of charge 2 1/2 inch hose line weighs
105 pounds
High-rise fire attack should be viewed as
Running a marathon, not running a sprint
What actually prevent injuries from heat and fatigue?
Frequently rotation of crews
Preserving the effectiveness of cruise with frequent rotations actually
Extinguishes the fire faster by extending the capabilities of limited resources p. 476
The key to keeping accurate accountability is to
Work the status board as the assignments are being made
Before incident priorities remain the same for high-rise building fires except on a much grander scale what are they?
Life safety
Incident stabilization
Extinguishment
Property conservation p. 477
The initial IC should remain calm and approach a high-rise emergency systematically by:
Size up/risk benefit analysis
Four incident priorities
RECEO.VS
Find the fire
Identify existing problems
Assign crews to address problems
Anticipate problems
Stick to/incident action plan
Referred to ICC high-rise fire checklist
Remain close to building engineer or maintenance supervisor p. 478
The first Company officer needs to establish’’ and announce ‘’
Command
Initiation of lobby control
The initial command post is usually in
The lobby close to the fire alarm panel
Inside the buildings fire control center
Lobby control consists of the following:
Verify the ‘’’ location
Verify the location of any ‘’ activation
Establish ‘’ with engineer or safety supervisor
Acquire ‘’’’’ documents/building plans
‘’ the fire fight and evacuation stairway
Managing the ‘’ of occupants to safe area
Gain control of ‘’’
‘’ incoming units to the elevator or firefighter stairwell
Verify the alarm location
Verify the location of any sprinkler activation
Establish contact with engineer or safety supervisor
Acquire emergency procedure documents/building plans
Select the fire fight and evacuation stairway
Managing the evacuation of occupants to safe area
Gain control of building systems
Direct incoming units to the elevator or firefighter stairwell
The first detail that company officer needs to determine when arriving in a high-rise Fire is to verify the initial
Location of the fire or the location of the fire alarm activation on the FACPp. 479
Pushing what button notifies the monitoring company that the fire department is on scene at the control panel
Acknowledgment button
Pushing white button, turns off alarm buzzer in the FACP but leaves the alarm status light and building alarm on
Acknowledgment button button p. 480
It is best to use what company members for the initial recon assignment because the initial commitment to high-rise firefighting are to utilize engineering companies to establish a water supply
Ladder companies
Never silence, the buildings, audible fire alarm, horn or siren until
Activated alarm is verified, once it is determined to be false it can be silenced
In an actual fire, once evacuation is complete in the life hazard is mitigated instant command can order the alarm to be
Silenced
Recon teams should determine
How many stairway access the fire for?
Which stairway is closest to the fire?
Which one has the standpipe?
Our hallway/stairways containing
The floor plan require more than 200 feet of hose
After that
Searching insure that firefighter stairways is clear of occupants up above the fire floor
A rapid assent team does what
Search Fire stairwells are clear of occupants above the fire floor
And older buildings with a smoke or fire tower it should be
The preferred choice for the evacuation stairway p. 481
If there is no fire tower, the evacuation should be
Pressurized by the buildings, hatchback system and free smoke
What is a fast food event that moves large number of able body people as possible in an organized manner to initial place a refuge
Evacuation, it is not a rescue