It would be good to think that tall buildings are dangerous in the event of an electric vehicle fire, but this Cheongna apartment fire has proven that After the fire,
many households were unable to evacuate to the front door because the electronic apartment stairwell windows were useless due to a power outage, so they had to evacuate using the 119 ladder truck
If we apply this to Lotte Tower, there are no windows at all on the 123rd floor, and to get out of the building from inside the house,
you have to change elevators 3 times, and it is 100% ventilated by electronic air conditioners. Fortunately, the residents of Cheongna Apartment were evacuated using fire ladders,
but Lotte Tower, Busan LCT, and Yeouido Park One are tall, so you cannot evacuate using fire ladders.
Above all, the most concerning thing is that there are 124 electric vehicle chargers on the 2nd to 4th basement floors,
but in the recent Cheongna fire, 1,400 vehicles were burned by a single parked vehicle, and the parking lot temperature rose to 1,500 degrees.
For reference, the melting point of iron is 1,538 degrees, and most apartments built since the mid-2000s use underground parking lots,
and there are many places where outside parking is not allowed at all. So, some apartments are banning electric vehicles from entering underground parking lots.
Most electric vehicles have lithium-ion batteries like this, but they are small and stacked on the bottom of the vehicle.
If you look at the impact test, if you hit it with a hammer a few times, it will burst with smoke, and if you look at the lithium-ion separator puncture strength test,
it will burst if a hole is made. They say the car is designed to prevent impacts so it won’t explode, but the batteries are packed tightly right under the passenger seat,
and if even one cell explodes, it’s a structure that causes a chain reaction explosion, so if there’s an accident, you just have to pray that it doesn’t explode.
