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18 Cards in this Set
- Front
- Back
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What are the European standard E-N 3-5’s for extinguishers? |
Must all be coloured red with a 5% colour zone to state which type of extinguisher it is |
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Water extinguisher specs? |
Colour code- red Capacity- 9L Charged Weight- 14-15kg Discharge duration/range- 70 secs/6m Min. % of contents discharged from full- 95% Charged pressure 15bar(Chubb) 12 bar for Angus |
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Specs of foam extinguisher? |
Yellow/cream label 9L 14-16kg Discharge duration- 45 seconds Range- 4m Min % of contents discharged from full- 95% Used for class A and B fires |
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Specs of Dry powder extinguisher? |
Blue label 9kg charged to 10 bar 14-16kg charged weight Discharge duration 15 seconds Range- 6m Minimum % of contents discharged from full- 85% Used on class A and B fires BA to be worn for this! |
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Specs of CO2 extinguisher? |
Black label 1.5-2kg of liquified gas Charged to 50 bar 19-29% gas in air needed to extinguish fire 1.5 times heavier than air Used for class A and B fires BA must be worn for this! |
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What extinguishers are carried on lfb appliances? |
Water Foam Dry powder |
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Frequency of tests for LFB extinguishers? |
Water- on acceptance, daily, after use and annually (discharge if not used in last 12 months) Foam & Dry Powder- on acceptance, daily, after use and annually (both by service provider) |
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Daily inspections for water, foam and dry powder extinguishers? |
Water- inspect for any signs of damage, make sure pressure gauge is in the green (if not discharge, check contents and recharge), and check condition of securing strap and ensure it is stowed correctly/securely on appliance Foam and Dry Powder- inspect for signs of damage, inspect discharge tube and nozzle for damage/distortion, confirm pressure gauge in green area, and check condition of securing strap and stowage arrangements in appliance |
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Safety precautions with CO2? |
Risk of asphyxiation in confined space so: Full PPE BA Ventilation after fire The discharge horn is very cold so don’t hold that when in use Can impair visibility and is noisy when released Risk of re-ignition so make sure you have more than one before you start |
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Safety precautions with water extinguishers? |
Full PPE at all times when using this in any form Visor down when charging/discharging Testing/charging/discharging to happen away from others/public and in open where possible Don’t try to remove the head assembly until all pressure is released, this can be done by turning it upside down and pressing the operating lever until air is expelled and pressure gauge returns to 0 Minor discharge is to be expected and is acceptable |
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Safety precautions with Dry Powder? |
Full PPE BA to be worn Make sure you are using the right extinguisher May employ chlorides which can be hazardous if inhaled for any length of time Visibility can be impaired Can re-ignite especially in class B fires, so be ready to apply again or use another medium If used outdoors may need to use 50% more to counter wind and moisture |
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Safety precautions with foam extinguisher? |
Full PPE Visor to be down when discharging Make sure safety pin is in place when not in use to prevent accidental discharge |
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How to refill a water extinguisher? |
Fill extinguisher with clean cold water to the indicator, don’t overfill! Refit the head assembly onto the cylinder taking care to my cross thread hand tighten (or nutring spanner tighten for Angus type) Connect station compressor to Schaefer valve and pressurise until gauge is in green area Chubb-15bar and Angus-12 bar Disconnect the compressor and refit the safety pin (Tests recorded on F426 and inspections in daily inventory sheet) |
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On acceptance, after used and annual test for water extinguisher? |
Discharge it, (if still charged) in a safe way- upside down pressing operating lever until air is expelled and pressure gauge on zero Examine head & body externally for damage/corrosion Check operating instructions on side are readable Unscrew head assembly Empty residual contents and clean with water Check inside for corrosion/damage to lining using a torch Check head assembly for wear/damage paying attention to threads, make sure ‘Of ring is still there Check actuation of all moving parts of operating head Inspect condition of nozzle, discharge hose, internal siphon tube and strainer |
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Operational use for water extinguisher? |
Remove pin and spray Work jet from base of fire upwards until extinguished, go back to hot spots to prevent re-ignition |
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Operational use with foam extinguisher? |
Remove pin and spray When using foam try to hit a wall or side of container to allow a spreading blanket Any discharge directly onto a liquid could disturb surface and mix foam with liquid braking down the foam or sink it with no inhibiting effect |
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Operational use for Dry Powder Extinguishers? |
Remove pin and spray Small particles of chemicals, LFB use general purpose powder This puts out fire by smothering and chemically interfering with the reaction of the flame Use side to side movement to put this out |
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Operational use with CO2 extinguisher? |
Set an appropriate angle of the horn, if used in open air stand up wind To use, pull safety pin and squeeze handle Hold it by the carrying handle and direct gas at seat of fire, sweep backward and forward to edges of fire until it’s out |
