12 Questions
What is the recommended practice standard that categorizes potential hazards in electric and hybrid vehicles?
SAE J2990
What color are high-voltage cables in hybrid electric vehicles?
Orange
How should the high-voltage circuit be depowered in a hybrid electric vehicle?
Remove all fuses and relays
What tool can be used to move orange cables out of the way?
Hot stick
What is the correct method for cutting the 12-volt battery cables in a hybrid electric vehicle?
Use a double cut method with insulated cutters
What type of fire attack involves flooding the high-voltage battery pack with water to control the fire in a hybrid vehicle?
Offensive
What type of fire attack involves pulling back a safe distance and allowing the NiMH battery modules to burn out in a hybrid vehicle?
Defensive
What type of materials may be present in hybrid vehicles that emergency responders should be aware of?
Hazmat materials
What is the first step emergency responders should take when approaching an electric or hybrid vehicle?
Identify the vehicle
What color is the plastic conduit that is color-coded to identify potential risks in hybrid electric vehicles?
Orange
What tool may be used to remove a person from high voltage in a hybrid electric vehicle?
Shepherd's hook
Can receiving an electric shock from a hybrid vehicle cause serious injury or death?
Yes
Study Notes
- Electric and hybrid vehicles do not make sound, making it difficult for first responders to approach safely.
- SOP/SOG procedures should be followed to ensure safety in incidents involving electric or hybrid vehicles.
- SAE recommended practice standard J2990 categorizes potential hazards as chemical, electrical, or thermal.
- High-voltage cables in hybrid electric vehicles are identified by their distinctive orange color.
- Hybrid electric vehicles have plastic conduit color-coded to identify potential risks.
- The high-voltage battery box in hybrid electric vehicles is positioned for maximum safety.
- The correct procedure for depowering the high-voltage circuit is to remove all fuses and relays.
- The hot stick tool can be used to move orange cables out of the way.
- A shepherd's hook tool may be used to remove a person from high voltage.
- Contact with high-voltage components can cause serious injury or death, but receiving an electric shock from a hybrid vehicle is highly unlikely.
- Emergency responders should follow standard operating procedures (SOP) for vehicle incidents.
- Identify the vehicle as soon as possible to determine if it is an electric or a hybrid electric vehicle.
- Disable the vehicle by removing the ignition key or fob, moving the key or fob away from the vehicle, and turning the ignition off.
- Stabilize the vehicle by chocking the wheels and setting the parking brake.
- Access the occupants using normal removal procedures.
- Cut the 12-volt battery cables using the double cut method with insulated cutters.
- Use water or foam to extinguish a fire in a hybrid vehicle and perform a fast, aggressive fire attack.
- Offensive fire attack involves flooding the high-voltage battery pack with water to control the fire.
- Defensive fire attack involves pulling back a safe distance and allowing the NiMH battery modules to burn out.
- Hazmat materials may be present in hybrid vehicles, including the high-voltage NiMH battery electrolyte, which is a caustic alkaline.
Are you a first responder or emergency personnel who deals with electric and hybrid vehicles? This quiz is designed to test your knowledge on the safety procedures and potential hazards involved in responding to incidents involving these types of vehicles. From identifying high-voltage cables to depowering the circuit, this quiz covers a wide range of topics to ensure your safety and the safety of those around you. Take this quiz and test your knowledge today!
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