TB 173 Electric/hybrid Vehicles And Lithium Ion Batteries

Question 1

ignition from a Li-ion Battery can take place up to _____ after the initial fire.

Answer 1

6 days

Question 2

Reignition from a lithium ion battery is called

Answer 2

Thermal Runaway.

Question 3

Lithium-ion batteries can range from _______ volts.

Answer 3

100 to 500 plus volts.

Question 4

to ensure there is no potential for such transmission of electricity to the Firefighter, LAFD personnel shall establish a __‘safety zone when extinguishing an EV fire with water and wear full structure fire personal protective equipment (PPE) and self-contained breathing apparatus (SCBA). Always consider the vehicle as energized.

Answer 4

30’

Question 5

During NFPA testing, it was determined that it could take _____ and up to ______ gallons of water to effectively cool down the battery.

Answer 5

2,600

3,000

Question 6

In all vehicle accidents or auto fires involving EV or Hybrid vehicles, LAFD personnel shall make every attempt to disconnect the DC electrical battery at the vehicle’s ________ Consult with the vehicle manufacturer for the location of the first responder loop and _____ the wiring to ensure they will not touch.

Answer 6

“First Responder Loop.”

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