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DCC FIR 204 Fire Protection Systems

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Title: DCC FIR 204 Fire Protection Systems


1
DCC FIR 204Fire Protection Systems
  • Chapter 2- Portable Fire Extinguishers

2
BLOOD DRIVE
  • Today, Tuesday, 9/5
  • 130-630
  • Arlington HQ, 11 Burnett Blvd.

3
Name Date
Hazard class
100
25
20 20
10
50
17 16
30
10
25
33
34 33
4
HOMEWORK EXAMPLE FORMAT
LOC TYPE CLASS RATING HYDRO
E1 PW A 2A 2003
E1 DRY CHEM ABC 2A10BC 2002
E1 CO2 BC 20BC 2004
E2 FOAMPW AB 2A10B 2005
5
Why Must Firefighters be Knowledgeable in Fire
Extinguishers?????
  • They use them
  • They inspect them
  • They may service them
  • Pub Ed- they are viewed as the experts

6
The purpose of a fire extinguisher
  • is to enable a person with minimal training and
    orientation to extinguish an incipient fire

7
General Rules of Fire Extinguishers for the Public
  • Only attempt to extinguish a fire that can be
    controlled in 10-15 seconds.
  • Always notify 911 BEFORE you use an
    extinguisher.
  • Use the proper type extinguisher ABC is the best
    type to get
  • Always have an escape route planned
  • Never turn your back on a fire, even if you think
    its out.

8
WHERE SHOULD THEY INSTALL THEM?
  • Locate near exits, so after they grab it, they
    still have the option to bail out.
  • In plain view
  • High enough kids cant get the but low enough
    that those who would grab them can do so quickly.
  • At least 1 per floor
  • Check it at least monthly
  • Ensure the entire family knows about them and
    when/when not to use them.

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  • The first version of the modern fire extinguisher
    was invented in the United Kingdom by Captain
    George Manby in 1816, consisting of a copper
    vessel of 3 gallons (13.6 liters) of pearl ash
    (potassium carbonate)solution under compressed
    air pressure.

11
SODA ACID EXTINGUISHER
  • The late 19th century saw the invention of the
    Soda-Acid extinguisher
  • A cylinder contained 1 or 2 gallons of water that
    had sodium bicarbonate mixed in it.
  • Suspended in the cylinder was a phial containing
    concentrated sulphuric acid.
  • Activating the extinguisher by striking a plunger
    to break the phial, or inverting the extinguisher
    to release a lead bung from the phial (depending
    on type), released the acid which mixed with the
    bicarbonate solution to generate carbon dioxide
    gas that expelled the water under pressure
    through a nozzle or short length of hose.

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13
DRY CHEMCIALS
  • Effective due to their coating ability
  • But this can be a detriment in some electronic
    equipment

14
3 types of dry chemical extinguishers (overview)
REGULAR DRY CHEMCIAL AGENTS
  • Sodium bicarbonate based
  • Potassium based
  • Multi purpose dry chemical

15
SODIUM BICARBONATE BASED
  • Similar to baking soda
  • Class B C

16
POTASSIUM BASED
  • Class BC
  • More effective than sodium bicarbonate based

17
MULTI PURPOSE DRY CHEMICAL
  • Class A,B,C
  • Monoammonium phosphate

18
Inexpensive kitchen fire extinguisher (B-C)
  • Take old 1 lb coffee can
  • Perforate edge of bottom with can opener.
  • Place plastic top on bottom turn over
  • Fill with baking soda
  • Put another plastic top on can
  • Label the can

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22
http//www.armhammer.com/basics/magic/9
  • Download their can label

Thanks to Arm Hammer
23
In event of fire
  • Call 911
  • If practical, use coffee can fire extinguisher
  • Turn can over so bottom is now on top
  • Remove plastic top, shake can over fire until
    extinguished.

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25
HALON
  • Introduced in 70s
  • Stops chemical chain reaction
  • Originally thought to be totally safe
  • Then discovered it turns into phosgene gas when
    heated to 750f
  • Then discovered to harm the ozone layer
  • Montreal protocol
  • Signed 1987
  • Fully effective 2000

26
HALONTRONSAFE REPLACEMENT FOR HALON
  • 11 lb Halotron I Fire Extinguisher1-A10-BC
    rating
  • Halotron I is an ozone-friendly replacement for
    Halon 1211

27
Carbon Tetrachloride Extinguishers
28
REALITY CHECK
  • Fire Extinguishers can explode when heated!!!!!!
  • Fire Extinguishers can fail when not properly
    secured

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38
Reality Check
  • Using the wrong extinguisher or using the right
    one the wrong way can be worse than not using
    one at all!!!!!

39
FIRE EXTINGUISHERS
  • Are part of a total system
  • Prevention
  • Incipient stage fire
  • 911
  • Fire Department Response
  • Small fire
  • Remote fire
  • Overhaul
  • FDNY-Truck Company

40
EXTINGUISHERS INSPECTION
  • Overall well being
  • Is it full?
  • Any damage
  • Tank
  • Hose
  • Gage
  • Within hydrostatic test date?
  • Pin and tie in place
  • Inspection sticker present and up to date
  • Bracket- workable?
  • Bottom Line Is it ready to be used?

41
EXTINGUISHER PLACEMENT
  • 1-5.1 Light (low) Hazard minor amount of Class A
    combustibles
  • Offices
  • Classrooms
  • Hotel/motel rooms
  • This classification anticipates that the majority
    of contents are either non combustible or
    arranged so that a fire is not likely to spread

42
EXTINGUISHER PLACEMENT
  • 1-5.2Ordinary (moderate) Hazard Total amounts of
    Class AB combustibles/flammables is present in
    greater amounts that a Light Hazard Area
  • Dining areas
  • Mercantile shops
  • Allied storage
  • Light manufacturing
  • Auto showrooms

43
EXTINGUISHER PLACEMENT
  • 1-5.3 Extra (High) Hazard where total amounts of
    Class A B combustibles/flammables is greater
    than that of a Moderate Hazard.
  • Woodworking shop
  • Vehicle repair
  • Aircraft and boat servicing
  • Cooking areas
  • Manufacturing processes such as painting

44
EXTINGUISHER PLACEMENT
  • The number of and placement is determined by
  • Area of the occupancy
  • Maximum travel distance to an extinguisher

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48
Why are they mounted near each other?
CO2 (BC)
PW Class A
49
Two 20 lb ABCs
50
RATINGS
  • 1A- 1X1X1 wood crib (1.25 gallons of water)
  • 1B1 square foot of pentane
  • C has no ratings just indicates it can
    extinguish electrical fires.

51
ratings
  • The following ratings are capable of
    extinguishing what size fire?
  • 2A10BC
  • 4A20BC

52
QUESTIONS???
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