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53 Cards in this Set

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What rpe does lfb provide

BA


Respirators


Powered respirator protective suit

What are the two types of respiratory hazards?

Chronic - immediate


Acute - long term

Why is BA worn?

To reduce the risk of respiratory injury to FF and provide safe working practices

What is the default level of rpe for fires and incidents representing an acute respiratory hazard?

BA

When can you not use a DPFM?

in a oxygen deficient or toxic atmosphere

when can you use a DPFM

when hazard involves airborne particulates and not expected to deteriorate

what is the definition of respiration?

the transport of oxygen from the outside air to the cells within tissue and the transfer or carbon dioxide in the opposite direction

what does air inhaled and exhaled contain?

air inhaled contains 21% oxygen and 0.04% carbon dioxide and exhaled air contains 16% oxygen and 4% carbon dioxide

consumption rates are affected by what factors?

physical exertion / physical fitness / stress





how does the body dissipate excess heat?

through radiation (heat flows from hotter to cooler body) / convection (air currents flowing over body) / vaporization (blood cooled in lungs by inhalation of cool air) / evaporation (sweat evaporating)

how much and when should water be consumed after a wear?

0.5L within 30 mins

what are the physiological effects of heat stress?

deterioration of : co-ordination / reasoning / manipulation / visual skills

what are the physical effects of heat stress?

heat cramps / heat exhaustion / heat stroke

to reduce heat stress what methods are used?

rotate crews / holding and recovery area / drinking water / relax dress / cool hands, wrists, head in water / limit ba crews other work / LAS to attend and monitor

what is the working duration of ba set?

31 mins at 50lpm

how much does the BA set weigh?

15.5 kg

what is the BA set?

self contained , two stage , open circuit , positive pressure / compressed air / breathing apparatus

what features does the BA set have?

positive pressure first breath activated / speech diaphragm / additional flow / stable air supply low breathing resistance

what are the face mask features?

anti dermatic rubber with double reflex seal / 5 strap adjustable harness / neck strap and stud / impact + scratch resistant poly carbonate visor / inner mask to prevent misting and co2 build up / air controlled from medium pressure supply hose via first breath button / air flows into main mask via two ports / air drawn into inner mask by two inhalation non return valves / exhaled air closes ldv and exits through spring loaded exhalation valve / speech diaphragm

what are the three non kink hoses from the reducer ?

medium pressure to LDV / medium pressure to second person connection / high pressure to electronic management unit

what does the bodyguard permanently show?

remaining air / time to warning

what features does the bodyguard have?

available air pressure / TTW / TOW / visual LED indicators

when does the bodyguard low battery warn?

when it drops below 5.5v and beeps every 9 seconds. can be used for 2 hours

when does the bodyguard give pressure warnings?

electronic at 84 bar / pneumatic at 74 bar / gives 12 minutes

what is the cylinder made from?

carbon fiber wrapped around a seamless aluminium liner

what are the features of the SDBA cylinder?

capacity of 8 litres of water / 2160 litres of compressed air at 300 bar / tested every 5 years to 450 bar / weighs 8.5kg

what are the features of the BA personal line?

plastic covered kevlar / 6m / 1.25m divide at D ring / snap hook on standing part / identity disk on snap hook / karabiner on running end /

when is the personal line tested?

on receipt / allocated at station or incident / after use / every 28 days

what are the features of the BA cable cutters?

withstands 1000v A.C and 1500v D.C / tested on reciept / a+b test / after use

What does policy state for 1 ba wearer?

must be in open air / in line of sight of ECO

what are the important elements of BA procedure at any incident?

adhere to BA procedures /


communication /


teamwork /


check pressure + TTW /


check tementary regularly /


understand BA supplements FF skills /


effective briefing and de-briefing /


awerness of physiological effects of working in hot humid atmospheres

what are the routine duties of a BA wearer?

carry out A test when taking over set - following cyclinder change - testing spare set / inform cm or wm if passed 28 day test / report defects or missing items / keep face mask free from hair

what are the duries of an BA wearer at incident?

A test taking over set or cylinder change / don + start in safe air / ensure 240 bar / establish and confirm call sign / hand ba tally to ECO

what is defined at working duration?

time of first breath to operation of low pressure warning

consumption rates vary so all BA wearers must what ?

regularly check bodyguard / monitor pressure remaining / return to ECP before low pressure warning / liase with ECO for turnaround times

in assessing working duration what should team leaders take into account?

air taken to reach scene / work rate at scene / conditions within incident / exit route may deteriorate / info recieved from ECO + crews / consumption rates may be higher on way out

When must a BA team leader withdraw?

uncontrolled loss of air / low pressure warning sounds / unwell or confused / faulty bodyguard guage / adsu or dsu sounds / member exposed to irrespirable atmosphere / loss of comms + telementary / if cannot withdraw as a team the go into entrapped

what are the principles of safe movement?

make sure floor can take weight / check for obstructions before moving / check above before standing up / maintain physical - visual - audible contact / BA team ORA should determine safest and quickest way to achieve objectives

stairs have different characteristics such as?

avoid stone staircases / metal staircases conduct heat and electricity / timber staircases are flammable

land marking can take place before entering a building by noting what?

size of building or structure / position of building in relation to surroundings / position of appliances outside building / LFB equipment committed to building

once inside crews should take note of features such as what?

which wall they are following / position of fixed features / how many and types of compartment they pass through / construction and textures / other features such as carpets

What life risk information should the IC gather en route

Numbers / ages, mobility, dependencies / known location an activity / fire survival call info / location in relation to fire

What is the minimum role of search Co ordinator?

Watch manager

IC should select best search method by taking into account what?

Any pre planning / number and location of people involved / type of structure to be searched / scale and complexity / hazards and risks / other tasks to be achieved

Where can a search be briefed to commence?

Point of entry / point of greatest danger for casualties / close to seat of fire / other designated points

What are the two types of search used by LFB?

Directional and compartmental

What are the advantages of compartment search?

It is mapped out systematically / suitable for a range of structures

What are the limitations of compartment search?

Not possible to clear large compartments / fully understanding brief is essential

What are the advantages of directional search?

Systematic and simple / suitable for smaller structures

What are the limitations of directional search?

Multiple teams to ensure search of compartments / does not clear compartments / potential to pass fire compartment

On location a casualty what should a BA team do?

Alert rest of crew / inform eco of casualty and location / make assessment / carry out secondary sweep / take gauge reading

What are the methods of rescuing a casualty?

One person / two person / three person

What is considered a heavy casualty?

125kg / 20 stone