It is on the fireground where the greatest
number of firefighter injuries and fatalities occur. It is here where all the training,
pre-planning, inspections and knowledge become vital. Being capable of assimilating all available
Information about the actual scene is
paramount to safe action. The action of
the fire is not totally unpredictable if adequate knowledge about the
structure, fuels and any special hazards involved is readily available. .
Limited available information and knowledge, underestimating the fire potential
and miscalculating the structural integrity of a building can result in
numerous fatalities and injuries
SAFETY HAZARDS ON THE FIREGROUND_
Each officer should understand the following factors
and how they affect safety:
In order to effectively operate safely on the
fireground you must conduct a proper size-up.
Use the following information.
Know the FACTS of the fire scene.
Understand the PROBABILITIES.
Know your own SITUATION (manpower,
equipment, water supply)
Make a DECISION and develop a CLEAR PLAN
OF ACTION.
It is important that the fireground be managed by using all resources of men, equipment, water supply and associated agencies, but you must control these resources. If you can control the fireground, then you can add a safety factor to your operation. Command must utilize personnel on the fireground by keeping identification of each person on the fireground. Each firefighter must have full protective clothing before entering the fireground.
THEN THE
FIREFIGHTER MUST:
Be
positioned in Staging.
Be
assigned to a task or sector.
Having completed
an assignment and no other assignment is available within that sector , crews
should be assigned to a Resource, Staging, or Rehabilitation Sector until such
time as they can be either reassigned back to an operating sector or released
to in-service status.
The intent of this procedure is to minimize
fireground confusion/ congestion and more importantly to limit the number of
personnel exposed to fireground hazards to only those necessary to successfully
control the operation. Individuals or
crews shall be restricted from wandering about
the fireground or congregating in non-functional groups. If you have not been assigned to a sector or
you do not have a necessary staff function to perform, stay off the fireground.
In extremely hazardous situations (large quantities of flammable liquids, LP
gas, hazardous material, difficult marginal rescues, etc. ) Command will engage
only an absolute minimum number of personnel within the fireground
perimeter. Self-standing master streams
will be utilized wherever possible.
In situations where crews must operate from
opposing or conflicting positions, such as front vs. rear attack streams,
interior VS. exterior streams, roof crews vs. interior crews, etc., utilize
radio or face-to-face communications to coordinate your actions with those of
the opposing crew in an effort to prevent needless injuries .
Ground crews must be notified and evacuated
from interior positions before ladder pipes go into operation.
Do not operate exterior streams, whether hand
lines , master streams, ladder pipes, etc . , into an area where interior crews
are operating. This procedure is intended to prevent injuries to personnel due
to stream blast and the driving of fire and/or heavy heat and smoke onto
interior crews.
When laddering a roof, the ladder selected
shall be one that will extend 2' - 3' above the roofline. This shall be done in an effort to provide
personnel operating from the roof with a visible means of egress.
If possible, when laddering buildings under
fire conditions, place ladders near building corners or firewalls as these
areas are generally more stable in the event of structural failure.
When operating either above or below ground
level, establish at least two ( 2 ) separate escape routes/means where possib1e
, such as stairways , ladders , exits, etc., preferab1y at opposite ends
of the building or separated by considerable distance.
Many safety principles revolve around action
that takes place on the fireground.
For the purpose of Ennis Fire Department
operations, the fireground perimeter can be defined as:
The area inside an imaginary boundary that
has been determined by safety considerations according to the foreseeable
hazards of the particular incident. (See
illustration page 3)
The flexible boundary that determines the
fireground can be altered by various safety factors. (See illustration page
All personnel entering the fireground perimeter
shall:
Wear protective clothing
Have crew intact
Be assigned to a sector
ALL OTHERS STAY OUTSIDE


The safety of
firefighting personnel represents a major reason for fireground
sectorization. Sector commanders must
maintain the capability to communicate with forces under his command so that he
can control both the position and function of his companies.
Sector officers and company
officers shall be able to account for the whereabouts and welfare of all
crews/crew members under their assignment.
(See Personnel Identification System, page 6)
Company officers shall insure that all
crewmembers are operating within their assigned sector only. Crews will not leave their respective
sectors unless OK'd by the sector officer.
When crews are operating within a sector,
company officers shall keep the sector officer informed of changing conditions
within the sector area, and particularly those changing conditions which may
affect the safety of personnel.
Hazards that will affect only a specific sector area should be dealt with within that sector and not necessarily affect the, entire operation.
In an effort to regulate the amount of fatigue
suffered by fireground personnel during sustained field operations, company
officers should frequently assess the physical condition of their crewmembers.
When crewmembers exhibit signs of serious physical or mental fatigue, the
entire crew should be reassigned to a Rehabilitation Sector if possible. To be reassigned to a Rehabilitation Sector,
company officers shall request reassignment from their sector officer. The
company officer's request shall indicate the crew's position/condition, etc.,
and shall advise as to the need for a replacement crew. Individual crews shall
not report to the Rehabilitation Sector unless assigned to it.
It is the ongoing responsibility of Command to summon
adequate resource to tactical situations to effectively stabilize that
situation, and to maintain adequate resource during extended operations to
complete all operational phases.
The rotation of companies will be utilized by
Command during extended operations to provide an effective ongoing level of
personnel and personnel performance.
Fire Alarm will assist in coordinating the rotation of companies during
such campaign operations.
It is the intent of this policy to reduce the fatigue
and trauma experienced during difficult operations to a reasonable (and
recoverable) level and is in no way intended to lessen the individual and
collective efforts expected of all members during field operations.
As an accountability measure sector officers
must record and maintain the identity of all personnel assigned to operate in
high hazard areas such as: basements,
high rise, etc., particularly where individual assignments are made which may place members
in precarious positions.
PERSONNEL
IDENTIFICATION SYSTEM
The following standard method for insuring
this vital account- ability shall be utilized as conditions dictate the need.
All operations division personnel will have two (2)
Accountability Tags attached to their protective clothing.
As sector officers make assignments, which may place
personnel in precarious positions they shall collect from each assigned member
an Accountability Tag and place it on their Incident Board.
Sector
officers shall account for each member upon completion of the assignment by returning
to each member his respective Accountability Tag.
The recognition of situations, which present
inordinate hazards to fireground personnel and the proper response to safeguard
personnel from those Hazards, is of critical importance to all Fire Department
operations.
Command has the responsibility to recognize
situations requiring the implementation of a Safety Sector and to confirm the
response of assigned personnel. Upon
arrival at a working incident, assigned personnel (Safety Officer, Fire
Protection Engineer, or anyone assigned by Command) will report to the
Command Post and unless otherwise assigned, will automatically establish a
Safety Sector and assume assigned responsibilities. Sector personnel will respond to all
multiple alarms and on request to other incidents.
A Safety Sector shall be established at those
incidents posing a high potential danger to personnel such as:
Fire complexity; e.g., most multiple alarm fires.
Hazardous structural conditions, existing or
potential.
Hazardous materials and chemicals, etc.
Any other situation where a Safety Sector could be
advantageous to the safety of the operation.
The establishment of a Safety Sector or the presence
of a Safety Officer on the scene in no way diminishes the responsibility
of all officers for the safety of their assigned personnel and of each and
every member to utilize common (safety) sense, and to work within
the intent of established safety procedures at all times.
The authority and
responsibilities of Safety- Sector personnel are located in Standard Operating
Procedures, 206.02, "Safety Sector”.
In recent times structural collapse has been the
leading cause of serious injuries and death to Fire Fighters. For this reason the possibility of structural
collapse should be a major consideration in the development of any tactical
plan.
Structural is collapse is always a
possibility when a building is subject to intense fire. In fact if
fire is allowed to affect a structure long enough some structural
failure is inevitable.
Regardless of
the age and exterior appearance of the building, there is always the
possibility that a principal structural - supporting member is being seriously
affected by heat and may collapse suddenly inflicting serious injury to
fire fighters.
In the typical fire involved
building, the roof is the most likely candidate for failure, however
failure of the roof may very likely trigger a collapse of one or more wall
sections. This is especially true if the
roof is a peak or dome type, which may exert outward pressure against both the
bearing, and non-bearing walls upon collapse.
In multistory buildings or buildings with basement, the floor section
above the fire may collapse if supporting members are directly exposed to heat
and flames.
A knowledge of various types of building
construction can be invaluable to the Fire Officer from a safety standpoint as certain
types of construction can be expected to fail sooner than others. For example, under fire conditions
lightweight truss and bar joist roof construction can be expected to fail after
minimal fire exposure.
Structures have been known to collapse without
warning but usually there are signs, which may tip off an alert fire
officer. Action might be taken to avert
any imminent hazard.
Tell Tale Signs:
Cracks in exterior walls.
Bulges in exterior walls.
Sounds of structural movement - creaking, growing,
snapping, e t c.
Smoke or water leaking through walls.
Flexible movement of any floor or roof where
firefighters walk.
Interior or exterior bearing walls or columns -
leaning, twisting or flexing.
The following construction features or conditions have been known to fail prematurely or to contribute to early structural failure when affected by fire.
Contributing Factors:
Large open (unsupported) areas - super markets,
warehouses, etc.
Large signs or marquees, which may pull away from
weakened walls.
Cantilevered canopies - which usually depend on the
roof for support and may collapse as the roof fails. Ornamental or secondary
front or sidewalls - which may pull away and collapse.
Buildings with light weight truss, bar joist, or
Bowstring truss, roofs.
Buildings supported by unprotected metal - beams,
columns, etc.
Buildings containing one or more of the above
features must be constantly evaluated for collapse potential. These evaluations should be of major
consideration toward determining the tactical mode i.e. offensive/defensive.
It is a principal Command responsibility to
continually evaluate and determine if the fire building is tenable for interior
operations. This ongoing evaluation of structural/fire conditions requires the
input of company officers advising their sectors and of sectors advising
Command of the conditions in their area of operation.
Structures of other than fire protected/heavy
timber construction are not designed to withstand the effects of fire, and can
be expected to fail after approximately twenty minutes of heavy fire
involvement. If after 10-15 minutes of
interior operations heavy fire conditions still exist, Command should initiate
a careful evaluation of structural conditions and should be fully prepared to
withdraw interior crews and resort to a defensive position.
If structural failure of a building or section of a
building appears likely a perimeter must be established a safe distance from
the area, which may collapse. All
personnel must remain outside this perimeter.
See Fireground Perimeters pages.
Interior firefighting operations should be abandoned
when the extent of the fire prohibits or the structure becomes unsafe to
operate within. When such conditions
become untenable, evacuate, regroup, re-communicate, and re-deploy.
Our primary concern when a hazard, which may
affect the safety of fire personnel, becomes apparent is the welfare of those
personnel. In an effort to protect
personnel which may suffer the adverse effects of such hazards such as
structural collapse, explosion, backdraft, etc. a structured method of area
evacuation must be utilized, one which will provide for the rapid/ effective
notification of those personnel involved, and one which will be able to
accurately account for those personnel.
The method of evacuation selected will vary
depending on the following circumstances:
Imminence of the hazard
Type and extent of hazard
Perception of the area affected by the hazard
The emergency traffic announcement is
designed to provide immediate notification for all fireground personnel of a
notable hazard that is either about to occur, or has occurred.
The use of " Emergency Traffic"
should be initiated only when the hazard appears to be imminent.
Any member has
the authority to utilize the " Emergency Traffic "
announcement when it is felt that a notable danger to personnel is apparent;
however, considerable discretion should be applied to its use - emergency
traffic announcements become ineffective if overused.
When an imminent hazard has been realized;
the emergency traffic process should be initiated. Usually either a company or sector officer
will be the initiator. The initiator
should describe the apparent hazard and order a positive response, usually to
evacuate a particular area or section, according to the scope of the hazard.
If possible, the sector
officers of those areas to be evacuated should request an acknowledgement of
the emergency traffic dispatch from those crews to be evacuated.
Upon receipt of the emergency traffic
evacuation order, company officers shall assemble their crews and promptly exit
to a safe location, where the company officer will again account for all
crewmembers. Shortly after the
evacuation order, sector officers shall begin the process of accounting for all
evacuated crews. When all affected crews and crewmembers are accounted for,
'the evacuation process is complete. At
this time a more specific determination as to the reality/extent of the hazard
can be made and efforts initiated' to re-deploy/redirect attack forces.
Building evacuation generally involves a
shift from offensive to defensive as an operational strategy. In such cases, Command
must develop a corresponding operational plan and trust, communicate that plan
to all operating elements. This can be
a difficult shift to complete as units are committed to positions in an
offensive manner. It is extremely
important that everyone gets the word that a strategic shift has been made.
Hazards noted of a less than imminent nature
should usually be handled by a consultation of Command, sector officers and/or
the Safety Officer, Fire Protection Engineer, company officers or outside agency
authorities. These officers or
specialist should make a determination as to the nature and possible effect of
the suspected hazard and advise Command so that he can make a more
knowledgeable decision as to the proper course of action.
Crews retreating from interior operations
often require hose line protection. The
personnel protection afforded to fire fighting personnel in such situations
represents a major function of such back-up lines.
Search and rescue should be performed according
to an efficient, well-planned procedure, which has included the safety of
search crew personnel.
The object of the search
effort is to locate possible victims, not create additional ones by neglecting
the safety of the search crew.
Prior to entering the search area, all search
team members should be familiar with a specific search plan including the
overall objective, a designation of the search area, individual assignments,
etc. This may require a brief
conference among crewmembers before entering the search area to develop and
communicate the plan.
A brief look
around the floor below the fire may provide good reference for the search team,
as floors in multistory occupancies usually have a similar layout.
Two or more members should conduct individual search activities where
possible.
Company officers must maintain an awareness
of the location and function of all members within their crew during search
operations.
Whenever a search is conducted that exposes search
crews to fire conditions (particularly above the fire floor) the search team
should be protected as soon as possible with a charged hose line, in order to
insure a safe escape route.
If search personnel are operating without a
hose line, lifelines should be used when encountering conditions of severely
limited visibility.
HIGH-RISE SAFETY
Fire personnel conducting operations in
high-rise buildings, are faced with many non-typical hazards due to the design,
elevation, limited access/egress, etc. inherent in these buildings containing a
working fire are to be considered a high hazard area.
If a working fire is suspected in a high-rise
building, the following procedures shall be adhered to:
Utilize stairways to go aloft if possible.
Elevators may be used to go aloft provided the
following measures have been taken.
2. Before using an elevator, the nearest enclosed stairway should be identified; if the elevator should stop at a floor with heavy smoke or intense heat. Fire Fighters can then head directly for the stairs without losing time searching for them.
Engage the firemen feature.
Take elevator to the floor two floors below the
suspected fire floor.