MDS/H TYPE / LADDERS 3 Flashcards
OLT
INTERIOR STAIRS TO CELLAR
NLT
1900-1916
interior stairs fireproof/partitioned
apt. doors fire resistant
2nd means of egress–ALTERNATE STAIRWAY or fire escape
STEEL I BEAMS INTRODUCED
basement entrance EXTERIOR
NLT 1916-1929
STEEL COLUMNS
dumbwaiter shafts, shared by apts…terminate in bulkhead with skylight
–FLOOR AREAS BROKEN UP INTO 2500 SQ FEET (1930–3000 SQ FEET)
-DIVIDING WALLS…ceiling on top floor
CUT
234
CEILING -1929
UNDERSIDE OF ROOF BOARDS -1930
TOP OF ROOF BOARDS -1940
ENGINE OPS
MOST CASES LINE STRETCHED THROUGH INTERIOR
EXCEPTION FIRE EXPOSING CIVILIANS VIA WINDOWS OR FIRE ESCAPE …partially / knock down
Stretching hoselines
2ND OR 3RD line may be URGENTLY NEEDED IN EXPOSURE
FIRE HAS OR IS ABOUT TO EXTEND ACROSS SHAFT
first line - interior stairs, safeguard stairway
2nd line - interior stairs to fire floor, augment first line, if not needed, goes above
3rd line- FIRE ESCAPE OR ROPE STRETCH
MATERIAL INTO SHAFTS
MEMBERS POSTED
NO ENCLOSED OR NARROW SHAFTS (wide and open )
NO ROOF OF SETBACKS OR ADJOINING BUILDING
fire in cockloft
consider cockloft nozzle from roof or top floor
addiitonal hoseline may be needed
OLT/NLT
Fire on two floors –extra engine/truck…progress not made in short time…2nd alarm
fire in an exposure- 2nd alarm
fire in two exposure- 3rd alarm
GAS METERS
usually in cellar, found in apts. and public hallways
PIPING containing flammable gas, not be permitted to pierce or run in STAIR ENCLOSURE, PUBLIC HALLWAY LEADING TO EXITS, SHAFT WITH RISER
EXTERIOR STREAM
-nozzle fully opened NO CIRCULAR OR WHIPPING
-TIGHT STREAM
-STEEP ANGLE
-AIM TOWARD CEILING
-AFTER WATER, MOVE UPWARD TO LINTEL (NOT INITIALLY)
CELLAR FIRES
ventilation-intermittengly open door and top of stairs
FIRST line - front door , interior stairs to cellar
When an exterior entrance exist, ESPECIALLY in FRONT OF building , IF IT PROVIDE QUICKEST ACCESS
if first line DOES NOT advance down interior stairs, it will protect public hall and first floor –2nd line will find EXTERIOR ENTRANCE
if FIRST LINE does advance down the stairs, 2nd line will stretch to first floor top of stairs
STORE FIRE
first line -STORE
2ND LINE -ENTRANCE HALLWAY–when assured that 2nd line not needed, advanced above
**Depending on SIZE OF FIRE AREA AND FIRE CONDITIONS , 2 1/2” LINE MAYBE CONSIDERED, **
NEVER BREAK PLATE GLASS WINDOWS WITHOUT CHARGED LINE
OLT converted to SRO
A. EACH INDIVIDUAL LOCK
B. EACH OCCUPANT BOTH MEANS OF EGRESS WITHOUT GOING THRU ANOTHER PERSON ROOM
C. SPRINKLER IN ROOM AND STAIRWAY
D. NO ROOF TANK/CANNOT BY SUPPLIED BY FDNY
PARTY WALL BALCONY
consider extra truck
line stretched to REAR
portable ladders to rear
REAR TENEMENTS
-10-25
WOOD FRAME/CLASS 3
H TYPES
STEEL WHEN HEATED EXPANDS and elongates
-masonry bearing walls
-WOOD BEAMS / FLOORS AND ROOF
-STRUCTURAL STEEL/ COLUMNS /GIRDERS
steel heated
1000-1500 degrees STARTS TO YIELD
STEEL COLUMNS/ CHANNEL RAILS/ H SHAPE
I BEAMS/ HORIZONTAL
COCKLOFT UP TO 4 FEET
COMMON ROOF
TOP FLOOR CEILING SEVERAL FEET BELOW MAIN ROOF BEAM…ROOF BEAMS FASTENED DIRECTLY TO ROOF BOARDS
STUDY ROOF (NOT INVERTED)
INVERTED MAIN ROOF BEAMS AT CEILING LEVEL, SPRINGY
TRANSVERSE
ON ALL FLOORS…ASSET TO TOP FLOOR FIRE
WINGS–SEPARATE WINGS–front or rear, public hall will not transverse
ISOLATED- individual entrances./ limited space/ absence of public hall
Channel rails
lath burned/ examine / column…check above and below
1 inch space box out
Waste pipe HOT TO TOUCH
TOP FLOOR EXAMINATION
FIRE SECTOR
FIRE FLOOR AND FLOOR ABOVE
FLOORS ABOVE SECTOR
FLOORS ABOVE FIRE SECTOR
EVERY EFFORT MADE TO GET FIRST HOSELINE IN OPERATION before additional lines are stretched
ALL AVAILABLE ENGINES STRETCH FIRST LINE
H TYPES
MEDIUM FIRE (ANTICIPATED 2 LINES REQUIRED)
EXTRA ENGINE AND TRUCK
2 FLOORS OF FIRE AND EXTENSIVE COCKLOFT (consider additional BC)
GENERALLY NEED 2ND ALARM
H TYPE STORE FIRE
1ST LINE -STORE
2ND LINE - BACK UP FIRST (OLT-entrance hall)
Cellar Fire
fireproof construction throughout cellar
concrete 2 hour ceiling
first line -numerous exterior entrances
TOP FLOOR FIRES
ROOF SECTOR SUPERVISOR EARLY
COMPANY OFFICER, UNTIL CHIEF ARRIVES
TRENCH
2 OR MORE INSPECTION HOLES FIRE SIDE
AT LEAST 3 FEET WIDE
CAN BEGIN AND NOTIFY IC
ABOUT 20 FEET FROM VENTHOLE
NARROWEST SECTION BULKHEAD/SKYLIGHTS/OUTSIDE WALLS …NOT INTERIOR FIREWALLS
-good practice to have 2 ladders at end of roof for larger buildings..
line operated into trench
