High Rise Buildings Flashcards
Fire Protection Features in Highrise
Class 3 standpipe systems
HVAC capable of smoke removal
facts about PRVs per NFPA 14^3
When static pressure exceeds 175 psi a PRV should be installed to limit static and residual pressure to no more than 175psi on 2 1/2” discharge
Lobby Control Operations
Accountability
Systems Control
Elevator Ops
Stairwell Identification
Evac coordination
Where are Preaction Sprinklers found and what will they discharge upon activation
Usually found in IT buildings
Will discharge argon and nitrogen gases to decrease oxygen to put fire out
Gases in Preaction Sprinklers
3M Novec 1230
Chemours FM-200
Pressure Regulating Devices
NFPA 14^2 designed to reduce, regulate, control, or restrict water pressure includes:
Pressure Restricting Devices
Pressure Reducing Valves
5th due engine (high Rise) water supply
Help 3rd due engine establish water supply
Reverse stack effect
Outside air is hotter than inside, structure draws air from high and pushes cold air out of lower openings
Characteristics of Highrise
Six to Seven stories and higher
(prior to 1976) Steel & Concrete
(After 1976) Fire Resistive construction
Year for hydrants to be within 100ft of FDC
1976
Pressure Reducing Valves
Reduce downstream pressure in both flowing and non flowing conditions
Can’t be adjusted easily in fireground
One Way Valve
Risers in buildings under construction
Two Floors below the top most finished floor
3rd Due engine driver (High Rise) water supply
Establish water supply to secondary FDC
Supply ground level standpipe in case of no secondary FDC
Additional Alarm Resources
3 engines
1 Truck
1 BC
Deputy/assistant chiefs
Light and Air and other specials
1st engine of 2nd alarm
6th due engine
BASE MANAGER
Base refers to parking area for incoming additional alarm apparatus
Park all like vehicles together ensuring clear path of travel
Mid Rise Description
Three to Six stories high less than 75ft from lowest FD vehicle access
Mid Rise Sprinklers systems NFPA regulation and what are they made of
NFPA 13R
Orange PVC pipes
Fire Wall minimum rating (high rise)
2 Hour fire resistance rating
Public Address systems
Speakers located in hallways, elevators, stairwells, rooms or tenant spaces exceeding 1000sqft
Class 3 Standpipe
2 1/2” diameter and a 1 1/2” reducer
Q decking
Composite metal floor decking
Advancing preconnect in highrise
Driver must stay at pump panel
Standpipe must still be supplied
Fire in Elevator Pit
Elevators equipped with automatic recall will stop at an alternate location
Fire Helmet on ERS will be flashing
2nd due engine (highrise) water supply
Establish a water supply
Stretch supply line to FDC.
Charge FDC IF reports of fire and visible smoke or deemed appropriate
1st truck highrise positioning
Park side A unless fire is readily identified
Avoid placing ladder directly to window or balcony showing fire unless for rescue
Raise to adjoining unit if fire apt is totally involved
Staging in High Rise
2 Floors below confirmed fire floor
High Rise Ventilation Tactics
Horizontally through windows
Vertically through stairwells
Use HVAC through out the building
Steps for Preferred method for horizontal vent in highrise
Pressurize attack stairwell
Pressurize Fire Floor Hallway
Vent Through Fire Apt
Medical Unit Set up in highrise
One Floor below staging to properly evaluate personnel
