Firefighter
A firefighter is a first responder trained in public safety and emergency response such as firefighting, primarily to control and extinguish fires and respond to emergencies such as hazardous material incidents, medical emergencies, road traffic collisions and other emergencies that threaten life, property and the environment, as well as to rescue persons from confinement or dangerous situations and preserve evidence.
Firefighters may also provide ordinance regulations, safety requirements, and administrative public functions for the communities and areas they are subject to jurisdiction to. Male firefighters are sometimes referred to as firemen.
The fire department, also known in some countries as the fire brigade or fire service, is one of the three main emergency services. From urban areas to aboard ships, firefighters have become ubiquitous around the world.
The skills required for safe operations are regularly practiced during training evaluations throughout a firefighter's career. Initial firefighting skills are normally taught through local, regional or state-approved fire academies or training courses. Depending on the requirements of a department, additional skills and certifications may also be acquired at this time.
Firefighters work closely with other emergency response agencies such as the police and emergency medical service. A firefighter's role may overlap with both. Fire investigators or fire marshals investigate the cause of a fire. If the fire was caused by arson or negligence, their work will overlap with law enforcement. Firefighters may also provide some degree of emergency medical service.
Duties
Fire suppression
A fire burns due to the presence of three elements: fuel, oxygen and heat. This is often referred to as the fire triangle. Sometimes it is known as the fire tetrahedron if a fourth element is added: a chemical chain reaction which can help sustain certain types of fire. The aim of firefighting is to deprive the fire of at least one of those elements. Most commonly this is done by dousing the fire with water, though some fires require other methods such as foam or dry agents. Firefighters are equipped with a wide variety of equipment for this purpose that include ladder trucks, pumper trucks, tanker trucks, fire hose, and fire extinguishers.Structural firefighting
While sometimes fires can be limited to small areas of a structure, wider collateral damage due to smoke, water and burning embers is common. Utility shutoff is typically an early priority for arriving fire crews. In addition, forcible entry may be required in order to gain access into the structure. Specific procedures and equipment are needed at a property where hazardous materials are being used or stored. Additionally, fighting fires in some structures may require additional training and firefighting tactics that are specific to that structure. For example, row house fires are a type of structure fire that require specific tactics to decrease risks.Structure fires may be attacked with either "interior" or "exterior" resources, or both. Interior crews, using the "two in, two out" rule, may extend fire hose lines inside the building, find the fire and cool it with water. Exterior crews may direct water into windows and other openings, or against any nearby fuels exposed to the initial fire. Hose streams directed into the interior through exterior wall apertures may conflict and jeopardize interior fire attack crews.
Buildings that are made of flammable materials such as wood are different from building materials such as concrete. Generally, a "fire-resistant" building is designed to limit fire to a small area or floor. Other floors can be safe by preventing smoke inhalation and damage. All buildings suspected or on fire must be evacuated, regardless of fire rating.
When fire departments respond to structure fires, the priorities are life safety, incident stabilization, and property conservation. Some tactics used to achieve positive results at a structure fire include scene size-up, door control, coordinated ventilation, and exterior attack prior to entry.
When the first fire department arrives on-scene at a structure fire, scene size-up must occur to develop the appropriate strategy and tactics. With scene size-up, a risk assessment must also occur to determine the risks of making an interior fire attack. When an incident's critical factors and the risk management plan indicate an offensive strategy, the incident commander will define the tactical objectives for entering the structure. Offensive incident action plans are based on the standard offensive tactical priorities and their corresponding completion benchmarks.
Firefighting priorities and tactics
The incident commander should consider these priorities and firefighting tactics at a structure fire:- Life safety – primary and secondary "All Clear"
- Property conservation – "Loss Stopped"
- Post fire control firefighter decontamination
- Customer Stabilization – Short term
Whenever possible during a structure fire, property is moved into the middle of a room and covered with a salvage cover, a heavy cloth-like tarp. Various steps such as retrieving and protecting valuables found during suppression or overhaul, evacuating water, and boarding windows and roofs can divert or prevent post-fire runoff.
Wildland firefighting
s require a unique set of strategies and tactics. In many countries such as Australia and the United States, these duties are mostly carried out by federal, state, or local agencies. Wildfires have some ecological role in allowing new plants to grow, therefore in some cases they will be left to burn. Priorities in fighting wildfires include preventing the loss of life and property as well as ecological damage.Aircraft rescue and firefighting
s employ specialist firefighters to deal with potential ground emergencies. Due to the mass casualty potential of an aviation emergency, the speed with which emergency response equipment and personnel arrive at the scene of the emergency is of paramount importance. When dealing with an emergency, the airport firefighters are tasked with rapidly securing the aircraft, its crew and its passengers from all hazards, particularly fire. Airport firefighters have advanced training in the application of firefighting foams, dry chemical and clean agents used to extinguish burning aviation fuel.Rescue
Firefighters rescue persons from confinement or dangerous situations such as burning buildings and crashed vehicles. Complex, infrequent situations requiring specialized training and equipment include rescues from collapsed buildings and confined spaces. Many fire departments, including most in the United Kingdom, refer to themselves as a fire and rescue service for this reason. Large fire departments, such as the New York City Fire Department and London Fire Brigade, have specialist teams for advanced technical rescue. As structure fires have been in decline for many years in developed countries such as the United States, rescues other than fires make up an increasing proportion of their firefighters' work.Emergency medical services (EMS )
Firefighters frequently provide some degree of emergency medical care. In some jurisdictions first aid is the only medical training that firefighters have, and medical calls are the sole responsibility of a separate emergency medical services agency. Elsewhere, it is common for firefighters to respond to medical calls. The impetus for this is the growing demand in medical emergencies and the significant decline in fires.In such departments, firefighters are often certified as emergency medical technicians in order to deliver basic life support, and more rarely as paramedics to deliver advanced life support. In the United Kingdom, where fire services and EMS are run separately, fire service co-responding has been introduced more recently. Another point of variation is whether the firefighters respond in a fire engine or a response car.
Hazardous materials
Fire departments are usually the lead agency that responds to hazardous materials incidents. Specialized firefighters, known as hazardous materials technicians, are trained in chemical identification, leak and spill control, and decontamination.Fire prevention
Fire departments frequently provide advice to the public on how to prevent fires in the home and work-place environments. Fire inspectors or fire marshals will directly inspect businesses to ensure they are up to the current building fire codes, which are enforced so that a building can sufficiently resist fire spread, potential hazards are located, and to ensure that occupants can be safely evacuated, commensurate with the risks involved.Fire suppression systems have a proven record for controlling and extinguishing unwanted fires. Many fire officials recommend that every building, including residences, have fire sprinkler systems. Correctly working sprinklers in a residence greatly reduce the risk of death from a fire. With the small rooms typical of a residence, one or two sprinklers can cover most rooms. In the United States, the housing industry trade groups have lobbied at the State level to prevent the requirement for fire sprinklers in one or two family homes.
Other methods of fire prevention are by directing efforts to reduce known hazardous conditions or by preventing dangerous acts before tragedy strikes. This is normally accomplished in many innovative ways such as conducting presentations, distributing safety brochures, providing news articles, writing public safety announcements or establishing meaningful displays in well-visited areas. Ensuring that each household has working smoke alarms, is educated in the proper techniques of fire safety, has an evacuation route and rendezvous point is of top priority in public education for most fire prevention teams in almost all fire department localities.
Fire investigators, who are experienced firefighters trained in fire cause determinism, are dispatched to fire scenes in order to investigate and determine whether the fire was a result of an accident or intentional. Some fire investigators have full law enforcement powers to investigate and arrest suspected arsonists.