Re: TSA restricts lithium batteries on airplanes

On Sat, 12 Jan 2008 13:00:18 +0000, Robert Sneddon
<fred@xxxxxxxxxxxxxxxxxx> wrote in
<M+Lk9nBinLiHFwkh@xxxxxxxxxxxxxxxxxx>:

Fire systems on large passenger aircraft have capacity limitations;
once all the CO2 or equivalent gas is used up there's no more
avbailable, and it could be an hour or two before the plane can get to a
diversion airfield if it's on a transatlantic or transpacific flight,
all the time with a fire in the hold which isn't guaranteed to be out
and which might flare up again. The FAA believe they can extinguish a
small lithium fire with the systems on board; they're not so certain of
putting out a fire in a large clump of lithium batteries stored together
in somebody's luggage. If they're spread out in different places in the
hold then there's less chance of the fire from the first battery
reaching the others and setting them off.

When one lithium-ion battery overheats, ignites or explodes, it can
trigger a chain reaction in adjacent lithium-ion cells (or batteries),
greatly increasing the severity of the problem. See the other post I
just made.

--
Best regards,
John Navas
Panasonic DMC-FZ8 (and several others)
.

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