Fire blankets

hillbilly1

Senior Member
Location
North Georgia mountains
Occupation
Owner/electrical contractor

don_resqcapt19

Moderator
Staff member
Location
Illinois
Occupation
retired electrician
While fire blanket may be effective in protecting exposures it does nothing to extinguish an EV battery fire. The battery itself has enough oxidizers in it, that reducing the oxygen supply by using a blanket does little.
The smoke and gasses from an EV battery fire are toxic, and fire blankets should only be deployed by firefighters in full turnout gear, including SCBA.
 

hillbilly1

Senior Member
Location
North Georgia mountains
Occupation
Owner/electrical contractor
While fire blanket may be effective in protecting exposures it does nothing to extinguish an EV battery fire. The battery itself has enough oxidizers in it, that reducing the oxygen supply by using a blanket does little.
The smoke and gasses from an EV battery fire are toxic, and fire blankets should only be deployed by firefighters in full turnout gear, including SCBA.
That’s kinda what I was thinking, maybe it would just help reduce the heat radiation?
 

retirede

Senior Member
Location
Illinois
If a lithium battery catches fire, the best course of action is to let it burn itself out and protect anything else in the vicinity. That’s probably the intent of the blankets.
 

don_resqcapt19

Moderator
Staff member
Location
Illinois
Occupation
retired electrician
If a lithium battery catches fire, the best course of action is to let it burn itself out and protect anything else in the vicinity. That’s probably the intent of the blankets.
While both lithium and lithium-ion batteries can result in serious fires, there is a big difference in fighting such a fire.
A primary battery (non-rechargeable) contains lithium metal and lithium metal is water reactive, so you have to limit the use of water. Lithium-ion batteries are secondary batteries (rechargeable) and do not have lithium metal in them and water is used extensively in an attempt to cool the cells that are in thermal runaway in an attempt to prevent other cells from becoming involved.

But yes, if possible, the best choice is to protect any exposures and let the fire burn out. Protection exposures is the intent of the blanket.
 

retirede

Senior Member
Location
Illinois
While both lithium and lithium-ion batteries can result in serious fires, there is a big difference in fighting such a fire.
A primary battery (non-rechargeable) contains lithium metal and lithium metal is water reactive, so you have to limit the use of water. Lithium-ion batteries are secondary batteries (rechargeable) and do not have lithium metal in them and water is used extensively in an attempt to cool the cells that are in thermal runaway in an attempt to prevent other cells from becoming involved.

But yes, if possible, the best choice is to protect any exposures and let the fire burn out. Protection exposures is the intent of the blanket.

Correct. But I suspect that in most cases, by the time the fire department gets there and gets enough water flowing, it’s already too late to stop the spread to other cells.
 
Top