TB 035 - Overhaul Procedures Flashcards
How many objectives of overhaul are there
5
The main objectives of overhaul are:
To provide for the safety of fire personnel conducting overhaul operations by limiting or removing exposure to _____/_____ atmospheres/substances and identifying/flagging _______ and _______ hazards that could potentially cause injuries or death.
Hazardous/ toxic
Structural and environmental
The main objectives of overhaul are:
To ensure the fire is out and all potential for ______ is eliminated.
Rekindle
The main objectives of overhaul are:
To leave the scene _______ – insofar as possible – for the purpose of aiding investigators and insurance adjusters in determining the most probable cause and property loss associated with the fire.
Undisturbed
The main objectives of overhaul are:
To _____ and ______ all _______ contents/possessions and minimize further damage to the building and/or materials involved.
Identify and preserve all salvageable
The main objectives of overhaul are:
To ensure the premises are turned over to a responsible party, deemed either safe or unsafe to reoccupy as determined by _______, secured as needed to prevent unlawful entry and unauthorized acts, and checked a final time for rekindle prior to leaving the scene.
Authorities
_____ and ______ are currently the best lines of defense against any dangerous form of gases, vapors, and particulates.
Time and shielding
The environment directly following a fire incident should be considered _______ _______ to ____ and ______ (___) and treated as a hazardous environment.
Immediately dangerous to life and health (IDLH)
Studies have shown that ____ and proper ______ greatly reduce the levels of exposure to a hazardous environment.
TIME AND PROPER VENTILATION
It is important to remember that although carbon monoxide (CO) is a main contributor to an IDLH atmosphere, a CO measurement alone is not an _______ ________ as to whether or not other harmful chemicals are present.
ACCURATE INDICATION
consideration should be given to shutting down ______ and allowing the particulate matter to settle for a considerable amount of time prior to fire personnel reentering the occupancy to conduct overhaul.
Blowers
___ ____ should be employed to determine the proper level of Personal Protective Equipment (PPE) needed and to complete any necessary post-incident personnel exposure reports.
Gas meters
Firefighting gear provides protection from products of combustion in two forms:
Respiratory protection (scba) Skin absorption (turn outs)
NFPA specifically states, “The use of self-contained breathing apparatus (SCBA) by firefighters shall always be assumed to be in an atmosphere immediately dangerous to life or health (IDLH) because there is no way to predetermine those dangerous conditions, concentrations of toxic materials, or percentages of oxygen in air that exist in a fire environment, during initial overhaul (salvage) operations, or under other immediate emergency conditions involving spills or releases of chemicals or other toxic materials” This is nfpa_____
NFPA 1404-4
LAFD issued PPE for structure firefighting (turnouts) has a moisture and vapor barrier to provide this shielding. Although the firefighting ____ does not have a vapor barrier, it should be worn to minimize exposure from these toxins and vapors.
HOOD
- Once a knockdown is declared, the Incident Commander (IC) shall cause all _____ to ____. A ___ ___ shall be established with the minimum required personnel as the IC survey’s the entire premises to identify any structural and environmental hazards, determine the fire’s cause and origin, and develop the incident overhaul plan.
Activity to cease
Fire watch
designated representative shall cause all structural and environmental hazards to be clearly identified and delineated with Department issued ___ ____ ____ to effectively alert all fire personnel to the known hazards, including any compromised areas of the structure’s ____, ____, ______, and _____.
Fire line tape
Roof, walls, ceilings, and floors
Areas that are deemed to be unsafe for personnel to access shall be completely restricted – with BOTH fire-line tape, and ___ and ____ striped barricade tape to prevent any movement in and around the affected area(s).
Red and white
The IC is responsible for documenting all hazards/risks, the area(s) involved, and any mitigation measures using an ICS ___ Incident Action Plan Safety Analysis.
215a
- ____ ______and/or additional resources needed to conduct the overhaul will be requested at the discretion of the IC. Note: the IC should consider ordering relief companies to replace initial resources involved in extended, physically demanding firefighting operations.
Relief companies
It is becoming more common for Arson to conduct investigations during _____ hours for obvious reasons, so fires occurring during the night may require the IC to establish an extended fire watch rotation with Metro Fire Communications (MFC).
Daytime
Complete Overhaul –
Appropriate PPEs range from a full turnout ensemble – with donned SCBA face piece – to turnout ____, ____jacket, helmet, gloves, eye protection and an appropriate disposable filtered mask.
Turnout pants
Brush jacket
Complete overhaul_
Minimal PPE may be considered when the occupancy has been well ventilated for a minimum of ___ ____. ___ _____ shall be utilized and put in place to monitor the atmosphere levels throughout the occupancy and for the duration of the overhaul.
One hour
Gas meters
When the IC determines no salvageable content exists, companies will meet the overhaul objectives by applying sufficient foam to the contents and all areas of the involved structure, paying particular attention to difficult to reach areas and points of the occupancy where structural members overlap or cross one another.
Wet overhaul
