Questions and Answers
What is the first step when arriving on the scene of an electric vehicle fire?
What factors should be considered before suppressing an electric vehicle fire?
Which method is recommended for controlling a battery fire in an electric vehicle?
Which of the following actions is NOT recommended when managing an EV fire?
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What should firefighters always assume about EV batteries during a fire response?
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What visible indication should firefighters watch for as a sign of ongoing battery degradation?
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When should firefighters consider using Class A foam on an EV fire?
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What is the recommended initial distance for attacking an EV fire?
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What must firefighters do to prevent unintended movement of an electric vehicle during fire suppression efforts?
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In the event of thermal runaway in an electric vehicle, what is the likely outcome for the vehicle?
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What is the recommended position to attack an electric vehicle fire?
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Which action should NOT be taken when dealing with an electric vehicle’s battery pack?
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What is a sign of continued battery degradation in electric vehicles following a fire?
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What should be avoided when suppressing a battery fire in an electric vehicle?
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Which safety measure should be prioritized once life safety has been addressed at an EV fire scene?
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Why is it essential to position fire apparatus appropriately when responding to EV fires?
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Study Notes
Firefighting Electric and Hybrid Vehicles
- Proper size-up is crucial upon arrival, assessing fire extent and whether it involves compartment or electrical components.
- Life safety is the top priority; evaluating whether to suppress the fire or allow it to burn is essential, considering exposures and fire extent.
- Electric vehicles (EVs) function as mobile battery energy storage systems; once batteries undergo thermal runaway, the vehicle is likely a total loss.
- Control measures must prioritize life safety, property preservation, exposure protection, environmental safety, and firefighter safety.
- Fires in EVs present unique risks related to battery systems, highlighting the need for specialized firefighting tactics.
- Water is the most effective suppression method for battery fires; fires typically emerge from beneath the vehicle.
- Always protect the working area and position firefighting apparatus wisely; full PPE (Personal Protective Equipment) and SCBA (Self-Contained Breathing Apparatus) are mandatory.
- Establish a water supply and chock the wheels, as EVs can be silent and may move unexpectedly.
- Minor fires not involving high-voltage batteries can generally be managed with standard firefighting techniques.
- For fully involved EVs, extinguishing the interior and contents may be necessary, while sustained suppression on the battery pack is vital, using a 1 3/4-inch handline.
- Attack EV fires from a 45-degree angle, initially standing 40 feet away and then advancing, as batteries can vent below the vehicle's rocker panels.
- Avoid cutting or puncturing the battery pack during firefighting efforts to prevent further hazards.
- Implement protective measures for dry wells and storm drains by using diversion and diking techniques; ensure area evacuation if needed.
- Treat EV batteries as always energized, requiring careful handling and awareness.
- Observe off-gassing as a dangerous sign of battery degradation; this toxic and flammable vapor may appear as white smoke even after the fire is out.
Firefighting Electric and Hybrid Vehicles
- Proper size-up is crucial upon arrival, assessing fire extent and whether it involves compartment or electrical components.
- Life safety is the top priority; evaluating whether to suppress the fire or allow it to burn is essential, considering exposures and fire extent.
- Electric vehicles (EVs) function as mobile battery energy storage systems; once batteries undergo thermal runaway, the vehicle is likely a total loss.
- Control measures must prioritize life safety, property preservation, exposure protection, environmental safety, and firefighter safety.
- Fires in EVs present unique risks related to battery systems, highlighting the need for specialized firefighting tactics.
- Water is the most effective suppression method for battery fires; fires typically emerge from beneath the vehicle.
- Always protect the working area and position firefighting apparatus wisely; full PPE (Personal Protective Equipment) and SCBA (Self-Contained Breathing Apparatus) are mandatory.
- Establish a water supply and chock the wheels, as EVs can be silent and may move unexpectedly.
- Minor fires not involving high-voltage batteries can generally be managed with standard firefighting techniques.
- For fully involved EVs, extinguishing the interior and contents may be necessary, while sustained suppression on the battery pack is vital, using a 1 3/4-inch handline.
- Attack EV fires from a 45-degree angle, initially standing 40 feet away and then advancing, as batteries can vent below the vehicle's rocker panels.
- Avoid cutting or puncturing the battery pack during firefighting efforts to prevent further hazards.
- Implement protective measures for dry wells and storm drains by using diversion and diking techniques; ensure area evacuation if needed.
- Treat EV batteries as always energized, requiring careful handling and awareness.
- Observe off-gassing as a dangerous sign of battery degradation; this toxic and flammable vapor may appear as white smoke even after the fire is out.
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Description
Test your knowledge on handling fires involving electric and hybrid vehicles. This quiz covers the important steps firefighters must take, including proper size up, life safety measures, and decisions regarding fire suppression. Learn about the unique challenges and considerations posed by electric vehicles.
