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EUC storage & charging cabinet with fire suppression system


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As beautiful as to be expected from the same mind that created/maintains EUC World. Well done.

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  • 2 weeks later...

Very slick. I like the automatic garage door opener option. I was reading a pdf the other day about the gases from these events and was shocked at just how toxic they are. Everyone knows they are to be avoided but the lethality within a confined space was extraordinary.

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16 minutes ago, DavidB said:

I was reading a pdf the other day about the gases from these events and was shocked at just how toxic they are. Everyone knows they are to be avoided but the lethality within a confined space was extraordinary.

Number one lethality of beeing with something burning/(heavily) smoking should be the lack of oxygen. Maybe supported by carbonmonoxide.

And some passing out from catbondioxide before dying...d

Additiinally i'd consider fumes from about almost eberything in a household like electronics, plastics, ... as extremely toxic.

Or is there something even worse within the li ion batteries?

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Yes HF.

1.7 mg/m3 Allowed exposure level at work in Sweden

25mg/m3 IDHL

139mg/m3 The lethal 10 minute value ((AEGL-3)

A fire that consumes a 2kw li-ion battery emits b/w 40 and 400gm of HF according to this pdf. That would be 40000mg/90m3 for a 6mx6mx2.5m garage. That is 444mg/m3 or 3 times the lethal 10min level at the lower emission and 10x that (ie 30x lethal dose) at the higher level.

Like I said in my previous post I was shocked by the data.

 The pdf is "Thermal propagation in lithium ion batteries" at ec.europa.eu page 16 on..

The same pdf stated that if the gases released from pre-ignition venting are confined an explosion can occur on ignition. I have no idea how probable this would be. But LTO batteries are looking like the weight may be a acceptable trade-off when considering there high discharge rate and fast charging.

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A short video from a test run of fire suppression system:

This was initiated manually from control panel. This test proved design assumptions - water spray discharge at ~20 liters per minute under water supply of about 2.2 bar (1.5 bar at sprinkler line) :thumbup:

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